├── deepspeech ├── buildDocker.bat ├── postAudio.bat ├── audio │ └── 4507-16021-0012.wav ├── runDeepSpeechDocker.bat ├── run-deepspeech-bash.bat ├── models │ └── config.json └── Dockerfile ├── kaldi ├── runEngine.bat ├── buildKaldiDocker.bat ├── runHtmlClient.bat ├── eng-docker │ ├── supervisord.conf │ ├── Dockerfile │ └── README.md └── dictate.js │ ├── demos │ ├── css │ │ └── demo.css │ ├── other │ │ ├── jquery.pretty-text-diff.min.js │ │ ├── diff_match_patch.js │ │ └── jquery-1.10.2.min.js │ ├── demo.html │ ├── mob.html │ ├── diff.html │ ├── demo.js │ └── mob.js │ ├── LICENSE │ ├── README.md │ └── lib │ ├── recorder.js │ ├── recorderWorker.js │ └── dictate.js ├── testing-audio ├── alice.wav ├── alice2.wav ├── futurama.wav ├── medical.wav ├── darwin-small.wav ├── darwin-small2.wav └── alice2-wavenet16khz.wav └── README.md /deepspeech/buildDocker.bat: -------------------------------------------------------------------------------- 1 | docker build . -t deepspeech1 -------------------------------------------------------------------------------- /kaldi/runEngine.bat: -------------------------------------------------------------------------------- 1 | docker run -p 9099:80 kaldi-eng 2 | -------------------------------------------------------------------------------- /kaldi/buildKaldiDocker.bat: -------------------------------------------------------------------------------- 1 | docker build --no-cache .\eng-docker -t kaldi-eng 2 | -------------------------------------------------------------------------------- /testing-audio/alice.wav: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/amitbet/speech/HEAD/testing-audio/alice.wav -------------------------------------------------------------------------------- /testing-audio/alice2.wav: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/amitbet/speech/HEAD/testing-audio/alice2.wav -------------------------------------------------------------------------------- /testing-audio/futurama.wav: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/amitbet/speech/HEAD/testing-audio/futurama.wav -------------------------------------------------------------------------------- /testing-audio/medical.wav: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/amitbet/speech/HEAD/testing-audio/medical.wav -------------------------------------------------------------------------------- /deepspeech/postAudio.bat: -------------------------------------------------------------------------------- 1 | curl -X POST --data-binary @audio/alice.wav http://localhost:9090/stt 2 | pause 3 | -------------------------------------------------------------------------------- /testing-audio/darwin-small.wav: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/amitbet/speech/HEAD/testing-audio/darwin-small.wav -------------------------------------------------------------------------------- /testing-audio/darwin-small2.wav: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/amitbet/speech/HEAD/testing-audio/darwin-small2.wav -------------------------------------------------------------------------------- /deepspeech/audio/4507-16021-0012.wav: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/amitbet/speech/HEAD/deepspeech/audio/4507-16021-0012.wav -------------------------------------------------------------------------------- /testing-audio/alice2-wavenet16khz.wav: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/amitbet/speech/HEAD/testing-audio/alice2-wavenet16khz.wav -------------------------------------------------------------------------------- /deepspeech/runDeepSpeechDocker.bat: -------------------------------------------------------------------------------- 1 | docker run -p 9090:8080 deepspeechserver 2 | 3 | REM to send an audio file to the server (16Khz only): 4 | REM curl -X POST --data-binary @audio/alice.wav http://localhost:9090/stt 5 | 6 | -------------------------------------------------------------------------------- /kaldi/runHtmlClient.bat: -------------------------------------------------------------------------------- 1 | cd ..\dictate.js\ 2 | start chrome http://localhost:9098/demos/demo.html 3 | echo you should have nodejs and node-static installed for this (or use any other static http server) 4 | static -p 9098 . 5 | 6 | -------------------------------------------------------------------------------- /deepspeech/run-deepspeech-bash.bat: -------------------------------------------------------------------------------- 1 | docker run -it -v c:/workspace/deepspeech-test/audio:/audio deepspeech bash 2 | 3 | REM to run the deepspeech inference from the container bash prompt: 4 | REM deepspeech /models/output_graph.pb /audio/anyWavFile.wav /models/alphabet.txt -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # opensource speech dockers 2 | 3 | Since building a Kaldi & DeepSpeech server took some searching around, 4 | I thought it would be beneficial to gather the information into one place. 5 | 6 | This repo includes the scripts that will create a working version of container images 7 | containing english models and websocket / rest services. 8 | -------------------------------------------------------------------------------- /deepspeech/models/config.json: -------------------------------------------------------------------------------- 1 | { 2 | "deepspeech": { 3 | "model" :"/models/output_graph.pb", 4 | "alphabet": "/models/alphabet.txt", 5 | "lm": "/models/lm.binary", 6 | "trie": "/models/trie" 7 | }, 8 | "server": { 9 | "http": { 10 | "host": "0.0.0.0", 11 | "port": 8080, 12 | "request_max_size": 1048576 13 | } 14 | } 15 | } 16 | -------------------------------------------------------------------------------- /kaldi/eng-docker/supervisord.conf: -------------------------------------------------------------------------------- 1 | [supervisord] 2 | nodaemon=true 3 | 4 | [program:master] 5 | command=python /opt/kaldi-gstreamer-server/kaldigstserver/master_server.py --port=80 6 | numprocs=1 7 | autostart=true 8 | autorestart=true 9 | stderr_logfile=/opt/master.log 10 | 11 | 12 | [program:worker] 13 | environment=GST_PLUGIN_PATH=/opt/gst-kaldi-nnet2-online/src/:/opt/kaldi/src/gst-plugin/ 14 | command=python /opt/kaldi-gstreamer-server/kaldigstserver/worker.py -c /opt/models/sample_english_nnet2.yaml -u ws://localhost:80/worker/ws/speech 15 | numprocs=1 16 | autostart=true 17 | autorestart=true 18 | stderr_logfile=/opt/worker.log 19 | -------------------------------------------------------------------------------- /deepspeech/Dockerfile: -------------------------------------------------------------------------------- 1 | FROM python:3 2 | 3 | RUN wget https://github.com/mozilla/DeepSpeech/releases/download/v0.1.1/audio-0.1.1.tar.gz && \ 4 | tar -zxvf audio-0.1.1.tar.gz && \ 5 | rm audio-0.1.1.tar.gz 6 | RUN wget https://github.com/mozilla/DeepSpeech/releases/download/v0.1.1/deepspeech-0.1.1-models.tar.gz && \ 7 | tar -zxvf deepspeech-0.1.1-models.tar.gz && \ 8 | rm deepspeech-0.1.1-models.tar.gz 9 | 10 | RUN pip install deepspeech 11 | RUN pip install deepspeech-server 12 | 13 | COPY ./models models 14 | 15 | # to run deepspeech: 16 | # CMD deepspeech ./models/output_graph.pb ./audio/8455-210777-0068.wav ./models/alphabet.txt 17 | 18 | #to run deepspeech server: 19 | ENV config /models/config.json 20 | CMD ["sh", "-c", "/usr/local/bin/deepspeech-server --config ${config}"] -------------------------------------------------------------------------------- /kaldi/eng-docker/Dockerfile: -------------------------------------------------------------------------------- 1 | FROM jcsilva/docker-kaldi-gstreamer-server 2 | MAINTAINER Eduardo Silva 3 | 4 | # This is the practical example part 5 | 6 | RUN mkdir -p /opt/models && cd /opt/models && \ 7 | wget --no-check-certificate https://phon.ioc.ee/~tanela/tedlium_nnet_ms_sp_online.tgz && \ 8 | tar -zxvf tedlium_nnet_ms_sp_online.tgz && \ 9 | wget https://raw.githubusercontent.com/alumae/kaldi-gstreamer-server/master/sample_english_nnet2.yaml -P /opt/models && \ 10 | find /opt/models/ -type f | xargs sed -i 's:test:/opt:g' && \ 11 | sed -i 's:full-post-processor:#full-post-processor:g' /opt/models/sample_english_nnet2.yaml 12 | 13 | RUN apt-get update && \ 14 | apt-get install -y supervisor && \ 15 | apt-get clean autoclean && \ 16 | apt-get autoremove -y && \ 17 | rm -rf /var/lib/apt/lists/* 18 | 19 | COPY supervisord.conf /etc/supervisor/conf.d/supervisord.conf 20 | 21 | EXPOSE 80 22 | 23 | CMD ["/usr/bin/supervisord"] 24 | -------------------------------------------------------------------------------- /kaldi/dictate.js/demos/css/demo.css: -------------------------------------------------------------------------------- 1 | .controls { 2 | display: block; 3 | margin-top: .5em; 4 | margin-bottom: .5em; 5 | padding: 0; 6 | } 7 | #log { 8 | font-size: 80% 9 | } 10 | #statusBar { 11 | font-family: monospace; 12 | color: #9F000F; 13 | margin-top: 1em; 14 | margin-bottom: 1em; 15 | padding: 0; 16 | } 17 | #serverStatusBar { 18 | position: fixed; 19 | bottom: 0.4em; 20 | right: 0.4em; 21 | top: auto; 22 | left: auto; 23 | font-family: monospace; 24 | padding: 0.2em 0.2em 0.2em 0.2em; 25 | } 26 | .highlight { 27 | color: red; 28 | } 29 | ins { 30 | background-color: #c6ffc6; 31 | text-decoration: none; 32 | } 33 | 34 | del { 35 | background-color: #ffc6c6; 36 | } 37 | .diff { 38 | font-family: monospace; 39 | } 40 | 41 | 42 | .buttonsContainer { 43 | display: table; 44 | position: fixed; 45 | bottom: 0%; 46 | left: 0%; 47 | width: 100%; 48 | height: 10%; 49 | text-align: center; 50 | background-color: rgba(128,128,200,0.7); 51 | } 52 | 53 | .buttons { 54 | display: table-cell; 55 | vertical-align: middle; 56 | padding: 0.5em; 57 | } 58 | 59 | button { 60 | width: 7em; 61 | } 62 | -------------------------------------------------------------------------------- /kaldi/eng-docker/README.md: -------------------------------------------------------------------------------- 1 | # Working example with single docker file 2 | This docker file automates the process described in the practial end to end example. 3 | It is purely meant for creating a basic test system very quickly. 4 | It creates a single Docker Image and starts the Kaldi master and a single worker. It also downloads a model. 5 | Due to the size of the model it may take a while to build this docker image. 6 | 7 | # Steps to run 8 | ## Build the docker image 9 | ``` 10 | docker build -t docker-kaldi-gstreamer-example:latest . 11 | ``` 12 | 13 | ## Run the docker image: 14 | ``` 15 | docker run -itd -p 8080:80 --shm-size=256m docker-kaldi-gstreamer-example:latest 16 | 17 | ``` 18 | 19 | ## Test the install 20 | On your host machine, download a client example and test your setup with a given audio: 21 | ``` 22 | wget https://raw.githubusercontent.com/alumae/kaldi-gstreamer-server/master/kaldigstserver/client.py -P /tmp 23 | wget https://raw.githubusercontent.com/alumae/kaldi-gstreamer-server/master/test/data/bill_gates-TED.mp3 -P /tmp 24 | python /tmp/client.py -u ws://localhost:8080/client/ws/speech -r 8192 /tmp/bill_gates-TED.mp3 25 | ``` 26 | -------------------------------------------------------------------------------- /kaldi/dictate.js/LICENSE: -------------------------------------------------------------------------------- 1 | Copyright (c) 2014, Kaarel Kaljurand 2 | All rights reserved. 3 | 4 | Redistribution and use in source and binary forms, with or without modification, 5 | are permitted provided that the following conditions are met: 6 | 7 | * Redistributions of source code must retain the above copyright notice, this 8 | list of conditions and the following disclaimer. 9 | 10 | * Redistributions in binary form must reproduce the above copyright notice, this 11 | list of conditions and the following disclaimer in the documentation and/or 12 | other materials provided with the distribution. 13 | 14 | * Neither the name of the {organization} nor the names of its 15 | contributors may be used to endorse or promote products derived from 16 | this software without specific prior written permission. 17 | 18 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 19 | ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 20 | WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 21 | DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR 22 | ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 23 | (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 24 | LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 25 | ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 27 | SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 | -------------------------------------------------------------------------------- /kaldi/dictate.js/demos/other/jquery.pretty-text-diff.min.js: -------------------------------------------------------------------------------- 1 | /* 2 | @preserve jQuery.PrettyTextDiff 1.0.2 3 | See https://github.com/arnab/jQuery.PrettyTextDiff/ 4 | */ 5 | (function(){var $;$=jQuery;$.fn.extend({prettyTextDiff:function(options){var dmp,settings;settings={originalContainer:".original",changedContainer:".changed",diffContainer:".diff",cleanup:true,debug:false};settings=$.extend(settings,options);$.fn.prettyTextDiff.debug("Options: ",settings,settings);dmp=new diff_match_patch;return this.each(function(){var changed,diff_as_html,diffs,original;original=$(settings.originalContainer,this).text();$.fn.prettyTextDiff.debug("Original text found: ",original,settings);changed=$(settings.changedContainer,this).text();$.fn.prettyTextDiff.debug("Changed text found: ",changed,settings);diffs=dmp.diff_main(original,changed);if(settings.cleanup){dmp.diff_cleanupSemantic(diffs)}$.fn.prettyTextDiff.debug("Diffs: ",diffs,settings);diff_as_html=diffs.map(function(diff){return $.fn.prettyTextDiff.createHTML(diff)});$(settings.diffContainer,this).html(diff_as_html.join(""));return this})}});$.fn.prettyTextDiff.debug=function(message,object,settings){if(settings.debug){return console.log(message,object)}};$.fn.prettyTextDiff.createHTML=function(diff){var data,html,operation,pattern_amp,pattern_gt,pattern_lt,pattern_para,text;html=[];pattern_amp=/&/g;pattern_lt=//g;pattern_para=/\n/g;operation=diff[0],data=diff[1];text=data.replace(pattern_amp,"&").replace(pattern_lt,"<").replace(pattern_gt,">").replace(pattern_para,"
");switch(operation){case DIFF_INSERT:return""+text+"";case DIFF_DELETE:return""+text+"";case DIFF_EQUAL:return""+text+""}}}).call(this); -------------------------------------------------------------------------------- /kaldi/dictate.js/demos/demo.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | dictate.js demo 7 | 8 | 9 | 10 | 11 | 12 | 13 |
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51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | -------------------------------------------------------------------------------- /kaldi/dictate.js/README.md: -------------------------------------------------------------------------------- 1 | dictate.js 2 | ========== 3 | 4 | __dictate.js__ is a small Javascript library for browser-based real-time speech recognition. 5 | It uses [Recorderjs](https://github.com/mattdiamond/Recorderjs) for audio capture, 6 | and a WebSocket connection to the 7 | [Kaldi GStreamer server](https://github.com/alumae/kaldi-gstreamer-server) for speech recognition. 8 | 9 | API 10 | --- 11 | 12 | The API is modeled after [Android's SpeechRecognizer](http://developer.android.com/reference/android/speech/SpeechRecognizer.html). 13 | See the source code of [lib/dictate.js](lib/dictate.js) and 14 | the usage in [demos/demo.js](demos/demo.js). 15 | 16 | Running the demos 17 | ----------------- 18 | 19 | The demos connect to the public services running on `wss://bark.phon.ioc.ee` 20 | that offer Estonian and English speech recognition. 21 | 22 | The demos are available [here](https://kaljurand.github.io/dictate.js/). 23 | (Note that in order to use a wss-service the HTML-pages must be loaded over https.) 24 | 25 | To run the demos on localhost, start a local HTTP server, e.g.: 26 | 27 | # Python 2 28 | python -m SimpleHTTPServer 29 | 30 | # Python 3 31 | python -m http.server 32 | 33 | and then open e.g. . 34 | 35 | Browser support 36 | --------------- 37 | 38 | Known to work in: 39 | 40 | - Google Chrome 54.0 on Ubuntu 16.04 41 | - Firefox 49.0.2 on Ubuntu 16.04 42 | - Firefox 49.0.2 on Android 7.1.1 43 | 44 | Known NOT to work in: 45 | 46 | - Google Chrome 54.0 on Android 7.1.1 47 | 48 | See also 49 | -------- 50 | 51 | - [Dikteeri](https://bark.phon.ioc.ee/dikteeri/) is an Estonian dictation demo by the [Laboratory of Phonetics and Speech Technology](https://phon.ioc.ee/dokuwiki/doku.php?id=start.en) (in Estonian). Uses `dictate.js`. 52 | - [Kõnele](https://github.com/Kaljurand/K6nele) contains an Android front-end to the Kaldi GStreamer server 53 | -------------------------------------------------------------------------------- /kaldi/dictate.js/demos/mob.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | dictate.js demo 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 25 | 26 | 27 | 28 | 29 |
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79 | 80 | 81 | 82 | 83 | 84 | 85 | 97 | 98 | 99 | 100 | -------------------------------------------------------------------------------- /kaldi/dictate.js/demos/demo.js: -------------------------------------------------------------------------------- 1 | // Global UI elements: 2 | // - log: event log 3 | // - trans: transcription window 4 | 5 | // Global objects: 6 | // - tt: simple structure for managing the list of hypotheses 7 | // - dictate: dictate object with control methods 'init', 'startListening', ... 8 | // and event callbacks onResults, onError, ... 9 | var tt = new Transcription(); 10 | 11 | var dictate = new Dictate({ 12 | server : "ws://localhost:9099/client/ws/speech", 13 | serverStatus : "ws://localhost:9099/client/ws/speech/status", 14 | recorderWorkerPath : '../lib/recorderWorker.js', 15 | onReadyForSpeech : function() { 16 | __message("READY FOR SPEECH"); 17 | __status("Kuulan ja transkribeerin..."); 18 | }, 19 | onEndOfSpeech : function() { 20 | __message("END OF SPEECH"); 21 | __status("Transkribeerin..."); 22 | }, 23 | onEndOfSession : function() { 24 | __message("END OF SESSION"); 25 | __status(""); 26 | }, 27 | onServerStatus : function(json) { 28 | __serverStatus(json.num_workers_available + ':' + json.num_requests_processed); 29 | if (json.num_workers_available == 0) { 30 | $("#buttonStart").prop("disabled", true); 31 | $("#serverStatusBar").addClass("highlight"); 32 | } else { 33 | $("#buttonStart").prop("disabled", false); 34 | $("#serverStatusBar").removeClass("highlight"); 35 | } 36 | }, 37 | onPartialResults : function(hypos) { 38 | // TODO: demo the case where there are more hypos 39 | tt.add(hypos[0].transcript, false); 40 | __updateTranscript(tt.toString()); 41 | }, 42 | onResults : function(hypos) { 43 | // TODO: demo the case where there are more results 44 | tt.add(hypos[0].transcript, true); 45 | __updateTranscript(tt.toString()); 46 | // diff() is defined only in diff.html 47 | if (typeof(diff) == "function") { 48 | diff(); 49 | } 50 | }, 51 | onError : function(code, data) { 52 | __error(code, data); 53 | __status("Viga: " + code); 54 | dictate.cancel(); 55 | }, 56 | onEvent : function(code, data) { 57 | __message(code, data); 58 | } 59 | }); 60 | 61 | // Private methods (called from the callbacks) 62 | function __message(code, data) { 63 | log.innerHTML = "msg: " + code + ": " + (data || '') + "\n" + log.innerHTML; 64 | } 65 | 66 | function __error(code, data) { 67 | log.innerHTML = "ERR: " + code + ": " + (data || '') + "\n" + log.innerHTML; 68 | } 69 | 70 | function __status(msg) { 71 | statusBar.innerHTML = msg; 72 | } 73 | 74 | function __serverStatus(msg) { 75 | serverStatusBar.innerHTML = msg; 76 | } 77 | 78 | function __updateTranscript(text) { 79 | $("#trans").val(text); 80 | } 81 | 82 | // Public methods (called from the GUI) 83 | function toggleLog() { 84 | $(log).toggle(); 85 | } 86 | function clearLog() { 87 | log.innerHTML = ""; 88 | } 89 | 90 | function clearTranscription() { 91 | tt = new Transcription(); 92 | $("#trans").val(""); 93 | } 94 | 95 | function startListening() { 96 | dictate.startListening(); 97 | } 98 | 99 | function stopListening() { 100 | dictate.stopListening(); 101 | } 102 | 103 | function cancel() { 104 | dictate.cancel(); 105 | } 106 | 107 | function init() { 108 | dictate.init(); 109 | } 110 | 111 | function showConfig() { 112 | var pp = JSON.stringify(dictate.getConfig(), undefined, 2); 113 | log.innerHTML = pp + "\n" + log.innerHTML; 114 | $(log).show(); 115 | } 116 | 117 | window.onload = function() { 118 | init(); 119 | }; 120 | -------------------------------------------------------------------------------- /kaldi/dictate.js/lib/recorder.js: -------------------------------------------------------------------------------- 1 | (function(window){ 2 | 3 | var WORKER_PATH = 'recorderWorker.js'; 4 | 5 | var Recorder = function(source, cfg){ 6 | var config = cfg || {}; 7 | var bufferLen = config.bufferLen || 4096; 8 | this.context = source.context; 9 | this.node = this.context.createScriptProcessor(bufferLen, 1, 1); 10 | var worker = new Worker(config.workerPath || WORKER_PATH); 11 | worker.postMessage({ 12 | command: 'init', 13 | config: { 14 | sampleRate: this.context.sampleRate 15 | } 16 | }); 17 | var recording = false, 18 | currCallback; 19 | 20 | this.node.onaudioprocess = function(e){ 21 | if (!recording) return; 22 | worker.postMessage({ 23 | command: 'record', 24 | buffer: [ 25 | e.inputBuffer.getChannelData(0) 26 | ] 27 | }); 28 | } 29 | 30 | this.configure = function(cfg){ 31 | for (var prop in cfg){ 32 | if (cfg.hasOwnProperty(prop)){ 33 | config[prop] = cfg[prop]; 34 | } 35 | } 36 | } 37 | 38 | this.record = function(){ 39 | recording = true; 40 | } 41 | 42 | this.stop = function(){ 43 | recording = false; 44 | } 45 | 46 | this.clear = function(){ 47 | worker.postMessage({ command: 'clear' }); 48 | } 49 | 50 | this.getBuffer = function(cb) { 51 | currCallback = cb || config.callback; 52 | worker.postMessage({ command: 'getBuffer' }) 53 | } 54 | 55 | this.exportWAV = function(cb, type){ 56 | currCallback = cb || config.callback; 57 | type = type || config.type || 'audio/wav'; 58 | if (!currCallback) throw new Error('Callback not set'); 59 | worker.postMessage({ 60 | command: 'exportWAV', 61 | type: type 62 | }); 63 | } 64 | 65 | this.exportRAW = function(cb, type){ 66 | currCallback = cb || config.callback; 67 | type = type || config.type || 'audio/raw'; 68 | if (!currCallback) throw new Error('Callback not set'); 69 | worker.postMessage({ 70 | command: 'exportRAW', 71 | type: type 72 | }); 73 | } 74 | 75 | this.export16kMono = function(cb, type){ 76 | currCallback = cb || config.callback; 77 | type = type || config.type || 'audio/raw'; 78 | if (!currCallback) throw new Error('Callback not set'); 79 | worker.postMessage({ 80 | command: 'export16kMono', 81 | type: type 82 | }); 83 | } 84 | 85 | // FIXME: doesn't work yet 86 | this.exportSpeex = function(cb, type){ 87 | currCallback = cb || config.callback; 88 | type = type || config.type || 'audio/speex'; 89 | if (!currCallback) throw new Error('Callback not set'); 90 | worker.postMessage({ 91 | command: 'exportSpeex', 92 | type: type 93 | }); 94 | } 95 | 96 | worker.onmessage = function(e){ 97 | var blob = e.data; 98 | currCallback(blob); 99 | } 100 | 101 | source.connect(this.node); 102 | this.node.connect(this.context.destination); //TODO: this should not be necessary (try to remove it) 103 | }; 104 | 105 | Recorder.forceDownload = function(blob, filename){ 106 | var url = (window.URL || window.webkitURL).createObjectURL(blob); 107 | var link = window.document.createElement('a'); 108 | link.href = url; 109 | link.download = filename || 'output.wav'; 110 | var click = document.createEvent("Event"); 111 | click.initEvent("click", true, true); 112 | link.dispatchEvent(click); 113 | } 114 | 115 | window.Recorder = Recorder; 116 | 117 | })(window); 118 | -------------------------------------------------------------------------------- /kaldi/dictate.js/demos/mob.js: -------------------------------------------------------------------------------- 1 | // Global UI elements: 2 | // - log: event log 3 | // - trans: transcription window 4 | 5 | // Global objects: 6 | // - isConnected: true iff we are connected to a worker 7 | // - tt: simple structure for managing the list of hypotheses 8 | // - dictate: dictate object with control methods 'init', 'startListening', ... 9 | // and event callbacks onResults, onError, ... 10 | var isConnected = false; 11 | 12 | var tt = new Transcription(); 13 | 14 | var startPosition = 0; 15 | var endPosition = 0; 16 | var doUpper = false; 17 | var doPrependSpace = true; 18 | 19 | function capitaliseFirstLetter(string) { 20 | return string.charAt(0).toUpperCase() + string.slice(1); 21 | } 22 | 23 | function prettyfyHyp(text, doCapFirst, doPrependSpace) { 24 | if (doCapFirst) { 25 | text = capitaliseFirstLetter(text); 26 | } 27 | tokens = text.split(" "); 28 | text = ""; 29 | if (doPrependSpace) { 30 | text = " "; 31 | } 32 | doCapitalizeNext = false; 33 | tokens.map(function(token) { 34 | if (text.trim().length > 0) { 35 | text = text + " "; 36 | } 37 | if (doCapitalizeNext) { 38 | text = text + capitaliseFirstLetter(token); 39 | } else { 40 | text = text + token; 41 | } 42 | if (token == "." || /\n$/.test(token)) { 43 | doCapitalizeNext = true; 44 | } else { 45 | doCapitalizeNext = false; 46 | } 47 | }); 48 | 49 | text = text.replace(/ ([,.!?:;])/g, "\$1"); 50 | text = text.replace(/ ?\n ?/g, "\n"); 51 | return text; 52 | } 53 | 54 | 55 | var dictate = new Dictate({ 56 | server : $("#servers").val().split('|')[0], 57 | serverStatus : $("#servers").val().split('|')[1], 58 | recorderWorkerPath : '../lib/recorderWorker.js', 59 | onReadyForSpeech : function() { 60 | isConnected = true; 61 | __message("READY FOR SPEECH"); 62 | $("#buttonToggleListening").html('Stop'); 63 | $("#buttonToggleListening").addClass('highlight'); 64 | $("#buttonToggleListening").prop("disabled", false); 65 | $("#buttonCancel").prop("disabled", false); 66 | startPosition = $("#trans").prop("selectionStart"); 67 | endPosition = startPosition; 68 | var textBeforeCaret = $("#trans").val().slice(0, startPosition); 69 | if ((textBeforeCaret.length == 0) || /\. *$/.test(textBeforeCaret) || /\n *$/.test(textBeforeCaret)) { 70 | doUpper = true; 71 | } else { 72 | doUpper = false; 73 | } 74 | doPrependSpace = (textBeforeCaret.length > 0) && !(/\n *$/.test(textBeforeCaret)); 75 | }, 76 | onEndOfSpeech : function() { 77 | __message("END OF SPEECH"); 78 | $("#buttonToggleListening").html('Stopping...'); 79 | $("#buttonToggleListening").prop("disabled", true); 80 | }, 81 | onEndOfSession : function() { 82 | isConnected = false; 83 | __message("END OF SESSION"); 84 | $("#buttonToggleListening").html('Start'); 85 | $("#buttonToggleListening").removeClass('highlight'); 86 | $("#buttonToggleListening").prop("disabled", false); 87 | $("#buttonCancel").prop("disabled", true); 88 | }, 89 | onServerStatus : function(json) { 90 | __serverStatus(json.num_workers_available); 91 | $("#serverStatusBar").toggleClass("highlight", json.num_workers_available == 0); 92 | // If there are no workers and we are currently not connected 93 | // then disable the Start/Stop button. 94 | if (json.num_workers_available == 0 && ! isConnected) { 95 | $("#buttonToggleListening").prop("disabled", true); 96 | } else { 97 | $("#buttonToggleListening").prop("disabled", false); 98 | } 99 | }, 100 | onPartialResults : function(hypos) { 101 | hypText = prettyfyHyp(hypos[0].transcript, doUpper, doPrependSpace); 102 | val = $("#trans").val(); 103 | $("#trans").val(val.slice(0, startPosition) + hypText + val.slice(endPosition)); 104 | endPosition = startPosition + hypText.length; 105 | $("#trans").prop("selectionStart", endPosition); 106 | }, 107 | onResults : function(hypos) { 108 | hypText = prettyfyHyp(hypos[0].transcript, doUpper, doPrependSpace); 109 | val = $("#trans").val(); 110 | $("#trans").val(val.slice(0, startPosition) + hypText + val.slice(endPosition)); 111 | startPosition = startPosition + hypText.length; 112 | endPosition = startPosition; 113 | $("#trans").prop("selectionStart", endPosition); 114 | if (/\. *$/.test(hypText) || /\n *$/.test(hypText)) { 115 | doUpper = true; 116 | } else { 117 | doUpper = false; 118 | } 119 | doPrependSpace = (hypText.length > 0) && !(/\n *$/.test(hypText)); 120 | }, 121 | onError : function(code, data) { 122 | dictate.cancel(); 123 | __error(code, data); 124 | // TODO: show error in the GUI 125 | }, 126 | onEvent : function(code, data) { 127 | __message(code, data); 128 | } 129 | }); 130 | 131 | // Private methods (called from the callbacks) 132 | function __message(code, data) { 133 | log.innerHTML = "msg: " + code + ": " + (data || '') + "\n" + log.innerHTML; 134 | } 135 | 136 | function __error(code, data) { 137 | log.innerHTML = "ERR: " + code + ": " + (data || '') + "\n" + log.innerHTML; 138 | } 139 | 140 | function __serverStatus(msg) { 141 | serverStatusBar.innerHTML = msg; 142 | } 143 | 144 | function __updateTranscript(text) { 145 | $("#trans").val(text); 146 | } 147 | 148 | // Public methods (called from the GUI) 149 | function toggleListening() { 150 | if (isConnected) { 151 | dictate.stopListening(); 152 | } else { 153 | dictate.startListening(); 154 | } 155 | } 156 | 157 | function cancel() { 158 | dictate.cancel(); 159 | } 160 | 161 | function clearTranscription() { 162 | $("#trans").val(""); 163 | // needed, otherwise selectionStart will retain its old value 164 | $("#trans").prop("selectionStart", 0); 165 | $("#trans").prop("selectionEnd", 0); 166 | } 167 | 168 | $(document).ready(function() { 169 | dictate.init(); 170 | 171 | $("#servers").change(function() { 172 | dictate.cancel(); 173 | var servers = $("#servers").val().split('|'); 174 | dictate.setServer(servers[0]); 175 | dictate.setServerStatus(servers[1]); 176 | }); 177 | 178 | }); 179 | -------------------------------------------------------------------------------- /kaldi/dictate.js/lib/recorderWorker.js: -------------------------------------------------------------------------------- 1 | //JavaScript Audio Resampler (c) 2011 - Grant Galitz 2 | function Resampler(fromSampleRate, toSampleRate, channels, outputBufferSize, noReturn) { 3 | this.fromSampleRate = fromSampleRate; 4 | this.toSampleRate = toSampleRate; 5 | this.channels = channels | 0; 6 | this.outputBufferSize = outputBufferSize; 7 | this.noReturn = !!noReturn; 8 | this.initialize(); 9 | } 10 | Resampler.prototype.initialize = function () { 11 | //Perform some checks: 12 | if (this.fromSampleRate > 0 && this.toSampleRate > 0 && this.channels > 0) { 13 | if (this.fromSampleRate == this.toSampleRate) { 14 | //Setup a resampler bypass: 15 | this.resampler = this.bypassResampler; //Resampler just returns what was passed through. 16 | this.ratioWeight = 1; 17 | } 18 | else { 19 | //Setup the interpolation resampler: 20 | this.compileInterpolationFunction(); 21 | this.resampler = this.interpolate; //Resampler is a custom quality interpolation algorithm. 22 | this.ratioWeight = this.fromSampleRate / this.toSampleRate; 23 | this.tailExists = false; 24 | this.lastWeight = 0; 25 | this.initializeBuffers(); 26 | } 27 | } 28 | else { 29 | throw(new Error("Invalid settings specified for the resampler.")); 30 | } 31 | } 32 | Resampler.prototype.compileInterpolationFunction = function () { 33 | var toCompile = "var bufferLength = Math.min(buffer.length, this.outputBufferSize);\ 34 | if ((bufferLength % " + this.channels + ") == 0) {\ 35 | if (bufferLength > 0) {\ 36 | var ratioWeight = this.ratioWeight;\ 37 | var weight = 0;"; 38 | for (var channel = 0; channel < this.channels; ++channel) { 39 | toCompile += "var output" + channel + " = 0;" 40 | } 41 | toCompile += "var actualPosition = 0;\ 42 | var amountToNext = 0;\ 43 | var alreadyProcessedTail = !this.tailExists;\ 44 | this.tailExists = false;\ 45 | var outputBuffer = this.outputBuffer;\ 46 | var outputOffset = 0;\ 47 | var currentPosition = 0;\ 48 | do {\ 49 | if (alreadyProcessedTail) {\ 50 | weight = ratioWeight;"; 51 | for (channel = 0; channel < this.channels; ++channel) { 52 | toCompile += "output" + channel + " = 0;" 53 | } 54 | toCompile += "}\ 55 | else {\ 56 | weight = this.lastWeight;"; 57 | for (channel = 0; channel < this.channels; ++channel) { 58 | toCompile += "output" + channel + " = this.lastOutput[" + channel + "];" 59 | } 60 | toCompile += "alreadyProcessedTail = true;\ 61 | }\ 62 | while (weight > 0 && actualPosition < bufferLength) {\ 63 | amountToNext = 1 + actualPosition - currentPosition;\ 64 | if (weight >= amountToNext) {"; 65 | for (channel = 0; channel < this.channels; ++channel) { 66 | toCompile += "output" + channel + " += buffer[actualPosition++] * amountToNext;" 67 | } 68 | toCompile += "currentPosition = actualPosition;\ 69 | weight -= amountToNext;\ 70 | }\ 71 | else {"; 72 | for (channel = 0; channel < this.channels; ++channel) { 73 | toCompile += "output" + channel + " += buffer[actualPosition" + ((channel > 0) ? (" + " + channel) : "") + "] * weight;" 74 | } 75 | toCompile += "currentPosition += weight;\ 76 | weight = 0;\ 77 | break;\ 78 | }\ 79 | }\ 80 | if (weight == 0) {"; 81 | for (channel = 0; channel < this.channels; ++channel) { 82 | toCompile += "outputBuffer[outputOffset++] = output" + channel + " / ratioWeight;" 83 | } 84 | toCompile += "}\ 85 | else {\ 86 | this.lastWeight = weight;"; 87 | for (channel = 0; channel < this.channels; ++channel) { 88 | toCompile += "this.lastOutput[" + channel + "] = output" + channel + ";" 89 | } 90 | toCompile += "this.tailExists = true;\ 91 | break;\ 92 | }\ 93 | } while (actualPosition < bufferLength);\ 94 | return this.bufferSlice(outputOffset);\ 95 | }\ 96 | else {\ 97 | return (this.noReturn) ? 0 : [];\ 98 | }\ 99 | }\ 100 | else {\ 101 | throw(new Error(\"Buffer was of incorrect sample length.\"));\ 102 | }"; 103 | this.interpolate = Function("buffer", toCompile); 104 | } 105 | Resampler.prototype.bypassResampler = function (buffer) { 106 | if (this.noReturn) { 107 | //Set the buffer passed as our own, as we don't need to resample it: 108 | this.outputBuffer = buffer; 109 | return buffer.length; 110 | } 111 | else { 112 | //Just return the buffer passsed: 113 | return buffer; 114 | } 115 | } 116 | Resampler.prototype.bufferSlice = function (sliceAmount) { 117 | if (this.noReturn) { 118 | //If we're going to access the properties directly from this object: 119 | return sliceAmount; 120 | } 121 | else { 122 | //Typed array and normal array buffer section referencing: 123 | try { 124 | return this.outputBuffer.subarray(0, sliceAmount); 125 | } 126 | catch (error) { 127 | try { 128 | //Regular array pass: 129 | this.outputBuffer.length = sliceAmount; 130 | return this.outputBuffer; 131 | } 132 | catch (error) { 133 | //Nightly Firefox 4 used to have the subarray function named as slice: 134 | return this.outputBuffer.slice(0, sliceAmount); 135 | } 136 | } 137 | } 138 | } 139 | Resampler.prototype.initializeBuffers = function (generateTailCache) { 140 | //Initialize the internal buffer: 141 | try { 142 | this.outputBuffer = new Float32Array(this.outputBufferSize); 143 | this.lastOutput = new Float32Array(this.channels); 144 | } 145 | catch (error) { 146 | this.outputBuffer = []; 147 | this.lastOutput = []; 148 | } 149 | } 150 | 151 | var recLength = 0, 152 | recBuffers = [], 153 | sampleRate, 154 | resampler; 155 | 156 | 157 | this.onmessage = function(e){ 158 | switch(e.data.command){ 159 | case 'init': 160 | init(e.data.config); 161 | break; 162 | case 'record': 163 | record(e.data.buffer); 164 | break; 165 | case 'exportWAV': 166 | exportWAV(e.data.type); 167 | break; 168 | case 'exportRAW': 169 | exportRAW(e.data.type); 170 | break; 171 | case 'export16kMono': 172 | export16kMono(e.data.type); 173 | break; 174 | case 'getBuffer': 175 | getBuffer(); 176 | break; 177 | case 'clear': 178 | clear(); 179 | break; 180 | } 181 | }; 182 | 183 | function init(config){ 184 | sampleRate = config.sampleRate; 185 | resampler = new Resampler(sampleRate, 16000, 1, 50*1024); 186 | } 187 | 188 | function record(inputBuffer){ 189 | recBuffers.push(inputBuffer[0]); 190 | recLength += inputBuffer[0].length; 191 | } 192 | 193 | function exportWAV(type){ 194 | var interleaved = mergeBuffers(recBuffers, recLength); 195 | var dataview = encodeWAV(interleaved); 196 | var audioBlob = new Blob([dataview], { type: type }); 197 | 198 | this.postMessage(audioBlob); 199 | } 200 | 201 | function exportRAW(type){ 202 | var buffer = mergeBuffers(recBuffers, recLength); 203 | var dataview = encodeRAW(buffer); 204 | var audioBlob = new Blob([dataview], { type: type }); 205 | 206 | this.postMessage(audioBlob); 207 | } 208 | 209 | function export16kMono(type){ 210 | var buffer = mergeBuffers(recBuffers, recLength); 211 | var samples = resampler.resampler(buffer); 212 | var dataview = encodeRAW(samples); 213 | var audioBlob = new Blob([dataview], { type: type }); 214 | 215 | this.postMessage(audioBlob); 216 | } 217 | 218 | // FIXME: doesn't work yet 219 | function exportSpeex(type){ 220 | var buffer = mergeBuffers(recBuffers, recLength); 221 | var speexData = Speex.process(buffer); 222 | var audioBlob = new Blob([speexData], { type: type }); 223 | this.postMessage(audioBlob); 224 | } 225 | 226 | function getBuffer() { 227 | var buffers = []; 228 | buffers.push( mergeBuffers(recBuffers, recLength) ); 229 | this.postMessage(buffers); 230 | } 231 | 232 | function clear(){ 233 | recLength = 0; 234 | recBuffers = []; 235 | } 236 | 237 | function mergeBuffers(recBuffers, recLength){ 238 | var result = new Float32Array(recLength); 239 | var offset = 0; 240 | for (var i = 0; i < recBuffers.length; i++){ 241 | result.set(recBuffers[i], offset); 242 | offset += recBuffers[i].length; 243 | } 244 | return result; 245 | } 246 | 247 | function interleave(inputL, inputR){ 248 | var length = inputL.length + inputR.length; 249 | var result = new Float32Array(length); 250 | 251 | var index = 0, 252 | inputIndex = 0; 253 | 254 | while (index < length){ 255 | result[index++] = inputL[inputIndex]; 256 | result[index++] = inputR[inputIndex]; 257 | inputIndex++; 258 | } 259 | return result; 260 | } 261 | 262 | function mix(inputL, inputR){ 263 | var length = inputL.length; 264 | var result = new Float32Array(length); 265 | 266 | var index = 0, 267 | inputIndex = 0; 268 | 269 | while (index < length){ 270 | result[index++] = inputL[inputIndex] + inputR[inputIndex]; 271 | inputIndex++; 272 | } 273 | return result; 274 | } 275 | 276 | 277 | function floatTo16BitPCM(output, offset, input){ 278 | for (var i = 0; i < input.length; i++, offset+=2){ 279 | var s = Math.max(-1, Math.min(1, input[i])); 280 | output.setInt16(offset, s < 0 ? s * 0x8000 : s * 0x7FFF, true); 281 | } 282 | } 283 | 284 | function writeString(view, offset, string){ 285 | for (var i = 0; i < string.length; i++){ 286 | view.setUint8(offset + i, string.charCodeAt(i)); 287 | } 288 | } 289 | 290 | function encodeWAV(samples){ 291 | var buffer = new ArrayBuffer(44 + samples.length * 2); 292 | var view = new DataView(buffer); 293 | 294 | /* RIFF identifier */ 295 | writeString(view, 0, 'RIFF'); 296 | /* file length */ 297 | view.setUint32(4, 32 + samples.length * 2, true); 298 | /* RIFF type */ 299 | writeString(view, 8, 'WAVE'); 300 | /* format chunk identifier */ 301 | writeString(view, 12, 'fmt '); 302 | /* format chunk length */ 303 | view.setUint32(16, 16, true); 304 | /* sample format (raw) */ 305 | view.setUint16(20, 1, true); 306 | /* channel count */ 307 | view.setUint16(22, 2, true); 308 | /* sample rate */ 309 | view.setUint32(24, sampleRate, true); 310 | /* byte rate (sample rate * block align) */ 311 | view.setUint32(28, sampleRate * 4, true); 312 | /* block align (channel count * bytes per sample) */ 313 | view.setUint16(32, 4, true); 314 | /* bits per sample */ 315 | view.setUint16(34, 16, true); 316 | /* data chunk identifier */ 317 | writeString(view, 36, 'data'); 318 | /* data chunk length */ 319 | view.setUint32(40, samples.length * 2, true); 320 | 321 | floatTo16BitPCM(view, 44, samples); 322 | 323 | return view; 324 | } 325 | 326 | function encodeRAW(samples){ 327 | var buffer = new ArrayBuffer(samples.length * 2); 328 | var view = new DataView(buffer); 329 | floatTo16BitPCM(view, 0, samples); 330 | return view; 331 | } 332 | 333 | 334 | -------------------------------------------------------------------------------- /kaldi/dictate.js/lib/dictate.js: -------------------------------------------------------------------------------- 1 | (function(window){ 2 | 3 | // Defaults 4 | var SERVER = "ws://localhost:9099/client/ws/speech"; 5 | var SERVER_STATUS = "ws://localhost:9099/client/ws/status"; 6 | var REFERENCE_HANDLER = "http://localhost:9099/client/dynamic/reference"; 7 | var CONTENT_TYPE = "content-type=audio/x-raw,+layout=(string)interleaved,+rate=(int)16000,+format=(string)S16LE,+channels=(int)1"; 8 | // Send blocks 4 x per second as recommended in the server doc. 9 | var INTERVAL = 250; 10 | var TAG_END_OF_SENTENCE = "EOS"; 11 | var RECORDER_WORKER_PATH = 'recorderWorker.js'; 12 | 13 | // Error codes (mostly following Android error names and codes) 14 | var ERR_NETWORK = 2; 15 | var ERR_AUDIO = 3; 16 | var ERR_SERVER = 4; 17 | var ERR_CLIENT = 5; 18 | 19 | // Event codes 20 | var MSG_WAITING_MICROPHONE = 1; 21 | var MSG_MEDIA_STREAM_CREATED = 2; 22 | var MSG_INIT_RECORDER = 3; 23 | var MSG_RECORDING = 4; 24 | var MSG_SEND = 5; 25 | var MSG_SEND_EMPTY = 6; 26 | var MSG_SEND_EOS = 7; 27 | var MSG_WEB_SOCKET = 8; 28 | var MSG_WEB_SOCKET_OPEN = 9; 29 | var MSG_WEB_SOCKET_CLOSE = 10; 30 | var MSG_STOP = 11; 31 | var MSG_SERVER_CHANGED = 12; 32 | 33 | // Server status codes 34 | // from https://github.com/alumae/kaldi-gstreamer-server 35 | var SERVER_STATUS_CODE = { 36 | 0: 'Success', // Usually used when recognition results are sent 37 | 1: 'No speech', // Incoming audio contained a large portion of silence or non-speech 38 | 2: 'Aborted', // Recognition was aborted for some reason 39 | 9: 'No available', // Recognizer processes are currently in use and recognition cannot be performed 40 | }; 41 | 42 | var Dictate = function(cfg) { 43 | var config = cfg || {}; 44 | config.server = config.server || SERVER; 45 | config.audioSourceId = config.audioSourceId; 46 | config.serverStatus = config.serverStatus || SERVER_STATUS; 47 | config.referenceHandler = config.referenceHandler || REFERENCE_HANDLER; 48 | config.contentType = config.contentType || CONTENT_TYPE; 49 | config.interval = config.interval || INTERVAL; 50 | config.recorderWorkerPath = config.recorderWorkerPath || RECORDER_WORKER_PATH; 51 | config.onReadyForSpeech = config.onReadyForSpeech || function() {}; 52 | config.onEndOfSpeech = config.onEndOfSpeech || function() {}; 53 | config.onPartialResults = config.onPartialResults || function(data) {}; 54 | config.onResults = config.onResults || function(data) {}; 55 | config.onEndOfSession = config.onEndOfSession || function() {}; 56 | config.onEvent = config.onEvent || function(e, data) {}; 57 | config.onError = config.onError || function(e, data) {}; 58 | config.rafCallback = config.rafCallback || function(time) {}; 59 | if (config.onServerStatus) { 60 | monitorServerStatus(); 61 | } 62 | 63 | // Initialized by init() 64 | var audioContext; 65 | var recorder; 66 | // Initialized by startListening() 67 | var ws; 68 | var intervalKey; 69 | // Initialized during construction 70 | var wsServerStatus; 71 | 72 | // Returns the configuration 73 | this.getConfig = function() { 74 | return config; 75 | } 76 | 77 | // Set up the recorder (incl. asking permission) 78 | // Initializes audioContext 79 | // Can be called multiple times. 80 | // TODO: call something on success (MSG_INIT_RECORDER is currently called) 81 | this.init = function() { 82 | var audioSourceConstraints = {}; 83 | config.onEvent(MSG_WAITING_MICROPHONE, "Waiting for approval to access your microphone ..."); 84 | try { 85 | window.AudioContext = window.AudioContext || window.webkitAudioContext; 86 | navigator.getUserMedia = navigator.getUserMedia || navigator.webkitGetUserMedia || navigator.mozGetUserMedia; 87 | window.URL = window.URL || window.webkitURL; 88 | audioContext = new AudioContext(); 89 | } catch (e) { 90 | // Firefox 24: TypeError: AudioContext is not a constructor 91 | // Set media.webaudio.enabled = true (in about:config) to fix this. 92 | config.onError(ERR_CLIENT, "Error initializing Web Audio browser: " + e); 93 | } 94 | 95 | if (navigator.getUserMedia) { 96 | if(config.audioSourceId) { 97 | audioSourceConstraints.audio = { 98 | optional: [{ sourceId: config.audioSourceId }] 99 | }; 100 | } else { 101 | audioSourceConstraints.audio = true; 102 | } 103 | navigator.getUserMedia(audioSourceConstraints, startUserMedia, function(e) { 104 | config.onError(ERR_CLIENT, "No live audio input in this browser: " + e); 105 | }); 106 | } else { 107 | config.onError(ERR_CLIENT, "No user media support"); 108 | } 109 | } 110 | 111 | // Start recording and transcribing 112 | this.startListening = function() { 113 | if (! recorder) { 114 | config.onError(ERR_AUDIO, "Recorder undefined"); 115 | return; 116 | } 117 | 118 | if (ws) { 119 | cancel(); 120 | } 121 | 122 | try { 123 | ws = createWebSocket(); 124 | } catch (e) { 125 | config.onError(ERR_CLIENT, "No web socket support in this browser!"); 126 | } 127 | } 128 | 129 | // Stop listening, i.e. recording and sending of new input. 130 | this.stopListening = function() { 131 | // Stop the regular sending of audio 132 | clearInterval(intervalKey); 133 | // Stop recording 134 | if (recorder) { 135 | recorder.stop(); 136 | config.onEvent(MSG_STOP, 'Stopped recording'); 137 | // Push the remaining audio to the server 138 | recorder.export16kMono(function(blob) { 139 | socketSend(blob); 140 | socketSend(TAG_END_OF_SENTENCE); 141 | recorder.clear(); 142 | }, 'audio/x-raw'); 143 | config.onEndOfSpeech(); 144 | } else { 145 | config.onError(ERR_AUDIO, "Recorder undefined"); 146 | } 147 | } 148 | 149 | // Cancel everything without waiting on the server 150 | this.cancel = function() { 151 | // Stop the regular sending of audio (if present) 152 | clearInterval(intervalKey); 153 | if (recorder) { 154 | recorder.stop(); 155 | recorder.clear(); 156 | config.onEvent(MSG_STOP, 'Stopped recording'); 157 | } 158 | if (ws) { 159 | ws.close(); 160 | ws = null; 161 | } 162 | } 163 | 164 | // Sets the URL of the speech server 165 | this.setServer = function(server) { 166 | config.server = server; 167 | config.onEvent(MSG_SERVER_CHANGED, 'Server changed: ' + server); 168 | } 169 | 170 | // Sets the URL of the speech server status server 171 | this.setServerStatus = function(serverStatus) { 172 | config.serverStatus = serverStatus; 173 | 174 | if (config.onServerStatus) { 175 | monitorServerStatus(); 176 | } 177 | 178 | config.onEvent(MSG_SERVER_CHANGED, 'Server status server changed: ' + serverStatus); 179 | } 180 | 181 | // Sends reference text to speech server 182 | this.submitReference = function submitReference(text, successCallback, errorCallback) { 183 | var headers = {} 184 | if (config["user_id"]) { 185 | headers["User-Id"] = config["user_id"] 186 | } 187 | if (config["content_id"]) { 188 | headers["Content-Id"] = config["content_id"] 189 | } 190 | $.ajax({ 191 | url: config.referenceHandler, 192 | type: "POST", 193 | headers: headers, 194 | data: text, 195 | dataType: "text", 196 | success: successCallback, 197 | error: errorCallback, 198 | }); 199 | } 200 | 201 | // Private methods 202 | function startUserMedia(stream) { 203 | var input = audioContext.createMediaStreamSource(stream); 204 | config.onEvent(MSG_MEDIA_STREAM_CREATED, 'Media stream created'); 205 | //Firefox loses the audio input stream every five seconds 206 | // To fix added the input to window.source 207 | window.source = input; 208 | 209 | // make the analyser available in window context 210 | window.userSpeechAnalyser = audioContext.createAnalyser(); 211 | input.connect(window.userSpeechAnalyser); 212 | 213 | config.rafCallback(); 214 | 215 | recorder = new Recorder(input, { workerPath : config.recorderWorkerPath }); 216 | config.onEvent(MSG_INIT_RECORDER, 'Recorder initialized'); 217 | } 218 | 219 | function socketSend(item) { 220 | if (ws) { 221 | var state = ws.readyState; 222 | if (state == 1) { 223 | // If item is an audio blob 224 | if (item instanceof Blob) { 225 | if (item.size > 0) { 226 | ws.send(item); 227 | config.onEvent(MSG_SEND, 'Send: blob: ' + item.type + ', ' + item.size); 228 | } else { 229 | config.onEvent(MSG_SEND_EMPTY, 'Send: blob: ' + item.type + ', EMPTY'); 230 | } 231 | // Otherwise it's the EOS tag (string) 232 | } else { 233 | ws.send(item); 234 | config.onEvent(MSG_SEND_EOS, 'Send tag: ' + item); 235 | } 236 | } else { 237 | config.onError(ERR_NETWORK, 'WebSocket: readyState!=1: ' + state + ": failed to send: " + item); 238 | } 239 | } else { 240 | config.onError(ERR_CLIENT, 'No web socket connection: failed to send: ' + item); 241 | } 242 | } 243 | 244 | 245 | function createWebSocket() { 246 | // TODO: do we need to use a protocol? 247 | //var ws = new WebSocket("ws://127.0.0.1:8081", "echo-protocol"); 248 | var url = config.server + '?' + config.contentType; 249 | if (config["user_id"]) { 250 | url += '&user-id=' + config["user_id"] 251 | } 252 | if (config["content_id"]) { 253 | url += '&content-id=' + config["content_id"] 254 | } 255 | var ws = new WebSocket(url); 256 | 257 | ws.onmessage = function(e) { 258 | var data = e.data; 259 | config.onEvent(MSG_WEB_SOCKET, data); 260 | if (data instanceof Object && ! (data instanceof Blob)) { 261 | config.onError(ERR_SERVER, 'WebSocket: onEvent: got Object that is not a Blob'); 262 | } else if (data instanceof Blob) { 263 | config.onError(ERR_SERVER, 'WebSocket: got Blob'); 264 | } else { 265 | var res = JSON.parse(data); 266 | if (res.status == 0) { 267 | if (res.result) { 268 | if (res.result.final) { 269 | config.onResults(res.result.hypotheses); 270 | } else { 271 | config.onPartialResults(res.result.hypotheses); 272 | } 273 | } 274 | } else { 275 | config.onError(ERR_SERVER, 'Server error: ' + res.status + ': ' + getDescription(res.status)); 276 | } 277 | } 278 | } 279 | 280 | // Start recording only if the socket becomes open 281 | ws.onopen = function(e) { 282 | intervalKey = setInterval(function() { 283 | recorder.export16kMono(function(blob) { 284 | socketSend(blob); 285 | recorder.clear(); 286 | }, 'audio/x-raw'); 287 | }, config.interval); 288 | // Start recording 289 | recorder.record(); 290 | config.onReadyForSpeech(); 291 | config.onEvent(MSG_WEB_SOCKET_OPEN, e); 292 | }; 293 | 294 | // This can happen if the blob was too big 295 | // E.g. "Frame size of 65580 bytes exceeds maximum accepted frame size" 296 | // Status codes 297 | // http://tools.ietf.org/html/rfc6455#section-7.4.1 298 | // 1005: 299 | // 1006: 300 | ws.onclose = function(e) { 301 | var code = e.code; 302 | var reason = e.reason; 303 | var wasClean = e.wasClean; 304 | // The server closes the connection (only?) 305 | // when its endpointer triggers. 306 | config.onEndOfSession(); 307 | config.onEvent(MSG_WEB_SOCKET_CLOSE, e.code + "/" + e.reason + "/" + e.wasClean); 308 | }; 309 | 310 | ws.onerror = function(e) { 311 | var data = e.data; 312 | config.onError(ERR_NETWORK, data); 313 | } 314 | 315 | return ws; 316 | } 317 | 318 | 319 | function monitorServerStatus() { 320 | if (wsServerStatus) { 321 | wsServerStatus.close(); 322 | } 323 | wsServerStatus = new WebSocket(config.serverStatus); 324 | wsServerStatus.onmessage = function(evt) { 325 | config.onServerStatus(JSON.parse(evt.data)); 326 | }; 327 | } 328 | 329 | 330 | function getDescription(code) { 331 | if (code in SERVER_STATUS_CODE) { 332 | return SERVER_STATUS_CODE[code]; 333 | } 334 | return "Unknown error"; 335 | } 336 | 337 | }; 338 | 339 | // Simple class for persisting the transcription. 340 | // If isFinal==true then a new line is started in the transcription list 341 | // (which only keeps the final transcriptions). 342 | var Transcription = function(cfg) { 343 | var index = 0; 344 | var list = []; 345 | 346 | this.add = function(text, isFinal) { 347 | list[index] = text; 348 | if (isFinal) { 349 | index++; 350 | } 351 | } 352 | 353 | this.toString = function() { 354 | return list.join('. '); 355 | } 356 | } 357 | 358 | window.Dictate = Dictate; 359 | window.Transcription = Transcription; 360 | 361 | })(window); 362 | -------------------------------------------------------------------------------- /kaldi/dictate.js/demos/other/diff_match_patch.js: -------------------------------------------------------------------------------- 1 | (function(){function diff_match_patch(){this.Diff_Timeout=1;this.Diff_EditCost=4;this.Match_Threshold=0.5;this.Match_Distance=1E3;this.Patch_DeleteThreshold=0.5;this.Patch_Margin=4;this.Match_MaxBits=32} 2 | diff_match_patch.prototype.diff_main=function(a,b,c,d){"undefined"==typeof d&&(d=0>=this.Diff_Timeout?Number.MAX_VALUE:(new Date).getTime()+1E3*this.Diff_Timeout);if(null==a||null==b)throw Error("Null input. 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this.diff_bisectSplit_(a,b,m,s,c)}}for(n=-v+p;n<=v-w;n+=2){l=g+n;u=n==-v||n!=v&&i[l-1]d)w+=2;else if(m>e)p+=2;else if(!q&&(l=g+k-n,0<=l&&(l=u)))return this.diff_bisectSplit_(a,b,m,s,c)}}return[[-1,a],[1,b]]}; 9 | diff_match_patch.prototype.diff_bisectSplit_=function(a,b,c,d,e){var f=a.substring(0,c),g=b.substring(0,d);a=a.substring(c);b=b.substring(d);f=this.diff_main(f,g,!1,e);e=this.diff_main(a,b,!1,e);return f.concat(e)}; 10 | diff_match_patch.prototype.diff_linesToChars_=function(a,b){function c(a){for(var b="",c=0,f=-1,g=d.length;fd?a=a.substring(c-d):c=a.length?[h,j,n,l,g]:null}if(0>=this.Diff_Timeout)return null; 15 | var d=a.length>b.length?a:b,e=a.length>b.length?b:a;if(4>d.length||2*e.lengthd[4].length?g:d:d:g;var j;a.length>b.length?(g=h[0],d=h[1],e=h[2],j=h[3]):(e=h[0],j=h[1],g=h[2],d=h[3]);h=h[4];return[g,d,e,j,h]}; 16 | diff_match_patch.prototype.diff_cleanupSemantic=function(a){for(var b=!1,c=[],d=0,e=null,f=0,g=0,h=0,j=0,i=0;f=e){if(d>=b.length/2||d>=c.length/2)a.splice(f,0,[0,c.substring(0,d)]),a[f-1][1]=b.substring(0,b.length-d),a[f+1][1]=c.substring(d),f++}else if(e>=b.length/2||e>=c.length/2)a.splice(f,0,[0,b.substring(0,e)]),a[f-1][0]=1,a[f-1][1]=c.substring(0,c.length-e),a[f+1][0]=-1,a[f+1][1]=b.substring(e),f++;f++}f++}}; 18 | diff_match_patch.prototype.diff_cleanupSemanticLossless=function(a){function b(a,b){if(!a||!b)return 6;var c=a.charAt(a.length-1),d=b.charAt(0),e=c.match(diff_match_patch.nonAlphaNumericRegex_),f=d.match(diff_match_patch.nonAlphaNumericRegex_),g=e&&c.match(diff_match_patch.whitespaceRegex_),h=f&&d.match(diff_match_patch.whitespaceRegex_),c=g&&c.match(diff_match_patch.linebreakRegex_),d=h&&d.match(diff_match_patch.linebreakRegex_),i=c&&a.match(diff_match_patch.blanklineEndRegex_),j=d&&b.match(diff_match_patch.blanklineStartRegex_); 19 | return i||j?5:c||d?4:e&&!g&&h?3:g||h?2:e||f?1:0}for(var c=1;c=i&&(i=k,g=d,h=e,j=f)}a[c-1][1]!=g&&(g?a[c-1][1]=g:(a.splice(c-1,1),c--),a[c][1]= 20 | h,j?a[c+1][1]=j:(a.splice(c+1,1),c--))}c++}};diff_match_patch.nonAlphaNumericRegex_=/[^a-zA-Z0-9]/;diff_match_patch.whitespaceRegex_=/\s/;diff_match_patch.linebreakRegex_=/[\r\n]/;diff_match_patch.blanklineEndRegex_=/\n\r?\n$/;diff_match_patch.blanklineStartRegex_=/^\r?\n\r?\n/; 21 | diff_match_patch.prototype.diff_cleanupEfficiency=function(a){for(var b=!1,c=[],d=0,e=null,f=0,g=!1,h=!1,j=!1,i=!1;fb)break;e=c;f=d}return a.length!=g&&-1===a[g][0]?f:f+(b-e)}; 25 | diff_match_patch.prototype.diff_prettyHtml=function(a){for(var b=[],c=/&/g,d=//g,f=/\n/g,g=0;g");switch(h){case 1:b[g]=''+j+"";break;case -1:b[g]=''+j+"";break;case 0:b[g]=""+j+""}}return b.join("")}; 26 | diff_match_patch.prototype.diff_text1=function(a){for(var b=[],c=0;cthis.Match_MaxBits)throw Error("Pattern too long for this browser.");var e=this.match_alphabet_(b),f=this,g=this.Match_Threshold,h=a.indexOf(b,c);-1!=h&&(g=Math.min(d(0,h),g),h=a.lastIndexOf(b,c+b.length),-1!=h&&(g=Math.min(d(0,h),g)));for(var j=1<=i;p--){var w=e[a.charAt(p-1)];k[p]=0===t?(k[p+1]<<1|1)&w:(k[p+1]<<1|1)&w|((r[p+1]|r[p])<<1|1)|r[p+1];if(k[p]&j&&(w=d(t,p-1),w<=g))if(g=w,h=p-1,h>c)i=Math.max(1,2*c-h);else break}if(d(t+1,c)>g)break;r=k}return h}; 32 | diff_match_patch.prototype.match_alphabet_=function(a){for(var b={},c=0;c=2*this.Patch_Margin&& 37 | e&&(this.patch_addContext_(a,h),c.push(a),a=new diff_match_patch.patch_obj,e=0,h=d,f=g)}1!==i&&(f+=k.length);-1!==i&&(g+=k.length)}e&&(this.patch_addContext_(a,h),c.push(a));return c};diff_match_patch.prototype.patch_deepCopy=function(a){for(var b=[],c=0;cthis.Match_MaxBits){if(j=this.match_main(b,h.substring(0,this.Match_MaxBits),g),-1!=j&&(i=this.match_main(b,h.substring(h.length-this.Match_MaxBits),g+h.length-this.Match_MaxBits),-1==i||j>=i))j=-1}else j=this.match_main(b,h,g); 39 | 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