├── .gitignore ├── .idea ├── .name ├── codeStyles │ ├── Project.xml │ └── codeStyleConfig.xml ├── gradle.xml ├── misc.xml ├── runConfigurations.xml └── vcs.xml ├── README.md ├── app ├── .gitignore ├── build.gradle ├── proguard-rules.pro └── src │ ├── androidTest │ └── java │ │ └── blog │ │ └── rishabh │ │ └── verbose │ │ └── ExampleInstrumentedTest.kt │ ├── main │ ├── AndroidManifest.xml │ ├── java │ │ └── blog │ │ │ └── rishabh │ │ │ └── verbose │ │ │ └── MainActivity.kt │ └── res │ │ ├── drawable-v24 │ │ └── ic_launcher_foreground.xml │ │ ├── drawable │ │ └── ic_launcher_background.xml │ │ ├── layout │ │ └── activity_main.xml │ │ ├── mipmap-anydpi-v26 │ │ ├── ic_launcher.xml │ │ └── ic_launcher_round.xml │ │ ├── mipmap-hdpi │ │ ├── ic_launcher.png │ │ └── ic_launcher_round.png │ │ ├── mipmap-mdpi │ │ ├── ic_launcher.png │ │ └── ic_launcher_round.png │ │ ├── mipmap-xhdpi │ │ ├── ic_launcher.png │ │ └── ic_launcher_round.png │ │ ├── mipmap-xxhdpi │ │ ├── ic_launcher.png │ │ └── ic_launcher_round.png │ │ ├── mipmap-xxxhdpi │ │ ├── ic_launcher.png │ │ └── ic_launcher_round.png │ │ └── values │ │ ├── colors.xml │ │ ├── strings.xml │ │ └── styles.xml │ └── test │ └── java │ └── blog │ └── rishabh │ └── verbose │ └── ExampleUnitTest.kt ├── build.gradle ├── gradle.properties ├── gradle └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── gradlew ├── gradlew.bat └── settings.gradle /.gitignore: -------------------------------------------------------------------------------- 1 | *.iml 2 | .gradle 3 | /local.properties 4 | /.idea/caches 5 | /.idea/libraries 6 | /.idea/modules.xml 7 | /.idea/workspace.xml 8 | /.idea/navEditor.xml 9 | /.idea/assetWizardSettings.xml 10 | .DS_Store 11 | /build 12 | /captures 13 | .externalNativeBuild 14 | .cxx 15 | -------------------------------------------------------------------------------- /.idea/.name: -------------------------------------------------------------------------------- 1 | Verbose -------------------------------------------------------------------------------- /.idea/codeStyles/Project.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 6 | 7 | 8 | 10 | 11 | 12 |
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115 | 116 | 117 | 118 | 119 | 121 | 122 | -------------------------------------------------------------------------------- /.idea/codeStyles/codeStyleConfig.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 5 | -------------------------------------------------------------------------------- /.idea/gradle.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 18 | 19 | -------------------------------------------------------------------------------- /.idea/misc.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 9 | -------------------------------------------------------------------------------- /.idea/runConfigurations.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 11 | 12 | -------------------------------------------------------------------------------- /.idea/vcs.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # STT-TTS-Android 2 | A demo application showcasing Speech-to-text and Text-to-speech in Android. You can find an in-depth explanation in my article on [DEV.TO](https://dev.to/rtficial/speech-to-text-and-text-to-speech-on-android-432p) 3 | 4 | ![ui screenshot](https://i.postimg.cc/8kRtY3Jf/Screenshot-1590828973.png) 5 | 6 | # See it in action 7 | Watch the demo video on [YouTube](https://youtu.be/AGuFeAa_ty4) 8 | -------------------------------------------------------------------------------- /app/.gitignore: -------------------------------------------------------------------------------- 1 | /build 2 | -------------------------------------------------------------------------------- /app/build.gradle: -------------------------------------------------------------------------------- 1 | apply plugin: 'com.android.application' 2 | apply plugin: 'kotlin-android' 3 | apply plugin: 'kotlin-android-extensions' 4 | 5 | android { 6 | compileSdkVersion 29 7 | buildToolsVersion "29.0.3" 8 | 9 | defaultConfig { 10 | applicationId "blog.rishabh.verbose" 11 | minSdkVersion 16 12 | targetSdkVersion 29 13 | versionCode 1 14 | versionName "1.0" 15 | 16 | testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner" 17 | } 18 | 19 | buildTypes { 20 | release { 21 | minifyEnabled false 22 | proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro' 23 | } 24 | } 25 | 26 | } 27 | 28 | dependencies { 29 | implementation fileTree(dir: 'libs', include: ['*.jar']) 30 | implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version" 31 | implementation 'androidx.appcompat:appcompat:1.1.0' 32 | implementation 'androidx.core:core-ktx:1.2.0' 33 | implementation 'androidx.constraintlayout:constraintlayout:1.1.3' 34 | testImplementation 'junit:junit:4.12' 35 | androidTestImplementation 'androidx.test.ext:junit:1.1.1' 36 | androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0' 37 | } 38 | -------------------------------------------------------------------------------- /app/proguard-rules.pro: -------------------------------------------------------------------------------- 1 | # Add project specific ProGuard rules here. 2 | # You can control the set of applied configuration files using the 3 | # proguardFiles setting in build.gradle. 4 | # 5 | # For more details, see 6 | # http://developer.android.com/guide/developing/tools/proguard.html 7 | 8 | # If your project uses WebView with JS, uncomment the following 9 | # and specify the fully qualified class name to the JavaScript interface 10 | # class: 11 | #-keepclassmembers class fqcn.of.javascript.interface.for.webview { 12 | # public *; 13 | #} 14 | 15 | # Uncomment this to preserve the line number information for 16 | # debugging stack traces. 17 | #-keepattributes SourceFile,LineNumberTable 18 | 19 | # If you keep the line number information, uncomment this to 20 | # hide the original source file name. 21 | #-renamesourcefileattribute SourceFile 22 | -------------------------------------------------------------------------------- /app/src/androidTest/java/blog/rishabh/verbose/ExampleInstrumentedTest.kt: -------------------------------------------------------------------------------- 1 | package blog.rishabh.verbose 2 | 3 | import androidx.test.platform.app.InstrumentationRegistry 4 | import androidx.test.ext.junit.runners.AndroidJUnit4 5 | 6 | import org.junit.Test 7 | import org.junit.runner.RunWith 8 | 9 | import org.junit.Assert.* 10 | 11 | /** 12 | * Instrumented test, which will execute on an Android device. 13 | * 14 | * See [testing documentation](http://d.android.com/tools/testing). 15 | */ 16 | @RunWith(AndroidJUnit4::class) 17 | class ExampleInstrumentedTest { 18 | @Test 19 | fun useAppContext() { 20 | // Context of the app under test. 21 | val appContext = InstrumentationRegistry.getInstrumentation().targetContext 22 | assertEquals("blog.rishabh.verbose", appContext.packageName) 23 | } 24 | } 25 | -------------------------------------------------------------------------------- /app/src/main/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 2 | 4 | 5 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | -------------------------------------------------------------------------------- /app/src/main/java/blog/rishabh/verbose/MainActivity.kt: -------------------------------------------------------------------------------- 1 | package blog.rishabh.verbose 2 | 3 | import android.app.Activity 4 | import android.content.ActivityNotFoundException 5 | import android.content.Intent 6 | import android.os.Build 7 | import android.os.Bundle 8 | import android.speech.RecognizerIntent 9 | import android.speech.tts.TextToSpeech 10 | import android.widget.Toast 11 | import androidx.appcompat.app.AppCompatActivity 12 | import kotlinx.android.synthetic.main.activity_main.* 13 | import java.util.* 14 | 15 | class MainActivity : AppCompatActivity() { 16 | 17 | companion object { 18 | private const val REQUEST_CODE_STT = 1 19 | } 20 | 21 | private val textToSpeechEngine: TextToSpeech by lazy { 22 | TextToSpeech(this, 23 | TextToSpeech.OnInitListener { status -> 24 | if (status == TextToSpeech.SUCCESS) { 25 | textToSpeechEngine.language = Locale.UK 26 | } 27 | }) 28 | } 29 | 30 | override fun onCreate(savedInstanceState: Bundle?) { 31 | super.onCreate(savedInstanceState) 32 | setContentView(R.layout.activity_main) 33 | 34 | btn_stt.setOnClickListener { 35 | val sttIntent = Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH) 36 | sttIntent.putExtra( 37 | RecognizerIntent.EXTRA_LANGUAGE_MODEL, 38 | RecognizerIntent.LANGUAGE_MODEL_FREE_FORM 39 | ) 40 | sttIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE, Locale.getDefault()) 41 | sttIntent.putExtra(RecognizerIntent.EXTRA_PROMPT, "Speak now!") 42 | 43 | try { 44 | startActivityForResult(sttIntent, REQUEST_CODE_STT) 45 | } catch (e: ActivityNotFoundException) { 46 | e.printStackTrace() 47 | Toast.makeText(this, "Your device does not support STT.", Toast.LENGTH_LONG).show() 48 | } 49 | } 50 | 51 | btn_tts.setOnClickListener { 52 | val text = et_text_input.text.toString().trim() 53 | if (text.isNotEmpty()) { 54 | if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) { 55 | textToSpeechEngine.speak(text, TextToSpeech.QUEUE_FLUSH, null, "tts1") 56 | } else { 57 | textToSpeechEngine.speak(text, TextToSpeech.QUEUE_FLUSH, null) 58 | } 59 | } else { 60 | Toast.makeText(this, "Text cannot be empty", Toast.LENGTH_LONG).show() 61 | } 62 | } 63 | 64 | } 65 | 66 | override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) { 67 | super.onActivityResult(requestCode, resultCode, data) 68 | when (requestCode) { 69 | REQUEST_CODE_STT -> { 70 | if (resultCode == Activity.RESULT_OK && data != null) { 71 | val result = data.getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS) 72 | result?.let { 73 | val recognizedText = it[0] 74 | et_text_input.setText(recognizedText) 75 | } 76 | } 77 | } 78 | } 79 | } 80 | 81 | override fun onPause() { 82 | textToSpeechEngine.stop() 83 | super.onPause() 84 | } 85 | 86 | override fun onDestroy() { 87 | textToSpeechEngine.shutdown() 88 | super.onDestroy() 89 | } 90 | } 91 | -------------------------------------------------------------------------------- /app/src/main/res/drawable-v24/ic_launcher_foreground.xml: -------------------------------------------------------------------------------- 1 | 7 | 8 | 9 | 15 | 18 | 21 | 22 | 23 | 24 | 30 | -------------------------------------------------------------------------------- /app/src/main/res/drawable/ic_launcher_background.xml: -------------------------------------------------------------------------------- 1 | 2 | 7 | 10 | 15 | 20 | 25 | 30 | 35 | 40 | 45 | 50 | 55 | 60 | 65 | 70 | 75 | 80 | 85 | 90 | 95 | 100 | 105 | 110 | 115 | 120 | 125 | 130 | 135 | 140 | 145 | 150 | 155 | 160 | 165 | 170 | 171 | -------------------------------------------------------------------------------- /app/src/main/res/layout/activity_main.xml: -------------------------------------------------------------------------------- 1 | 2 | 10 | 11 |