├── Images
    ├── Visualizer.gif
    └── VisualizerThumbnail2.png
├── LICENSE
├── README.md
├── Visualizer.xcodeproj
    ├── project.pbxproj
    ├── project.xcworkspace
    │   ├── contents.xcworkspacedata
    │   └── xcshareddata
    │   │   └── IDEWorkspaceChecks.plist
    └── xcuserdata
    │   └── macbook.xcuserdatad
    │       └── xcschemes
    │           └── xcschememanagement.plist
└── Visualizer
    ├── AppDelegate.swift
    ├── Assets.xcassets
        ├── AppIcon.appiconset
        │   └── Contents.json
        └── Contents.json
    ├── Base.lproj
        └── LaunchScreen.storyboard
    ├── Info.plist
    ├── Models
        └── Conductor.swift
    ├── Preview Content
        └── Preview Assets.xcassets
        │   └── Contents.json
    ├── SceneDelegate.swift
    ├── Views
        ├── AmplitudeVisualizer.swift
        ├── ContentView.swift
        └── VerticalBar.swift
    └── Visualizer.entitlements


/Images/Visualizer.gif:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/Matt54/SwiftUI-AudioKit-Visualizer/0fd1f67b9928aeae152fac502d229bcf1d775e01/Images/Visualizer.gif


--------------------------------------------------------------------------------
/Images/VisualizerThumbnail2.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/Matt54/SwiftUI-AudioKit-Visualizer/0fd1f67b9928aeae152fac502d229bcf1d775e01/Images/VisualizerThumbnail2.png


--------------------------------------------------------------------------------
/LICENSE:
--------------------------------------------------------------------------------
 1 | MIT License
 2 | 
 3 | Copyright (c) 2025 Matt Pfeiffer
 4 | 
 5 | Permission is hereby granted, free of charge, to any person obtaining a copy
 6 | of this software and associated documentation files (the "Software"), to deal
 7 | in the Software without restriction, including without limitation the rights
 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 9 | copies of the Software, and to permit persons to whom the Software is
10 | furnished to do so, subject to the following conditions:
11 | 
12 | The above copyright notice and this permission notice shall be included in all
13 | copies or substantial portions of the Software.
14 | 
15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 | SOFTWARE.
22 | 


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
 1 | <h1 id="top"> SwiftUI-AudioKit-Visualizer </h1>
 2 | 
 3 | An iOS audio visualizer application created with SwiftUI and the AudioKit framework.
 4 |  <br>
 5 | 
 6 | <h1 id="visualization"> Visualization </h1>
 7 | <p align="center">
 8 |   <kbd>
 9 |     <img src="Images/Visualizer.gif" width="600">
10 |   </kbd>
11 | </p>
12 | <br>
13 | 
14 | <h1 id="video"> Watch With Audio! </h1>
15 | <div align="center">
16 |   <a href="https://www.youtube.com/watch?v=rzEkg2ria1I"><img src="Images/VisualizerThumbnail2.png" alt="Audio Visualizer Video Link"></a>
17 | </div>
18 | <br>
19 | 


--------------------------------------------------------------------------------
/Visualizer.xcodeproj/project.pbxproj:
--------------------------------------------------------------------------------
  1 | // !$*UTF8*$!
  2 | {
  3 | 	archiveVersion = 1;
  4 | 	classes = {
  5 | 	};
  6 | 	objectVersion = 50;
  7 | 	objects = {
  8 | 
  9 | /* Begin PBXBuildFile section */
 10 | 		FA9F16A624D320B200401F2D /* AmplitudeVisualizer.swift in Sources */ = {isa = PBXBuildFile; fileRef = FA9F16A524D320B200401F2D /* AmplitudeVisualizer.swift */; };
 11 | 		FAC4004F24D326570078C6D4 /* VerticalBar.swift in Sources */ = {isa = PBXBuildFile; fileRef = FAC4004E24D326570078C6D4 /* VerticalBar.swift */; };
 12 | 		FAC7907C24A7940C00EA977D /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = FAC7907B24A7940C00EA977D /* AppDelegate.swift */; };
 13 | 		FAC7907E24A7940C00EA977D /* SceneDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = FAC7907D24A7940C00EA977D /* SceneDelegate.swift */; };
 14 | 		FAC7908024A7940C00EA977D /* ContentView.swift in Sources */ = {isa = PBXBuildFile; fileRef = FAC7907F24A7940C00EA977D /* ContentView.swift */; };
 15 | 		FAC7908224A7940F00EA977D /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = FAC7908124A7940F00EA977D /* Assets.xcassets */; };
 16 | 		FAC7908524A7940F00EA977D /* Preview Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = FAC7908424A7940F00EA977D /* Preview Assets.xcassets */; };
 17 | 		FAC7908824A7940F00EA977D /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = FAC7908624A7940F00EA977D /* LaunchScreen.storyboard */; };
 18 | 		FAC7909124A7944900EA977D /* AudioKit.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = FAC7909024A7944900EA977D /* AudioKit.framework */; };
 19 | 		FAC7909224A7944900EA977D /* AudioKit.framework in Embed Frameworks */ = {isa = PBXBuildFile; fileRef = FAC7909024A7944900EA977D /* AudioKit.framework */; settings = {ATTRIBUTES = (CodeSignOnCopy, RemoveHeadersOnCopy, ); }; };
 20 | 		FAC7909524A7945700EA977D /* AudioKitUI.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = FAC7909424A7945700EA977D /* AudioKitUI.framework */; };
 21 | 		FAC7909624A7945700EA977D /* AudioKitUI.framework in Embed Frameworks */ = {isa = PBXBuildFile; fileRef = FAC7909424A7945700EA977D /* AudioKitUI.framework */; settings = {ATTRIBUTES = (CodeSignOnCopy, RemoveHeadersOnCopy, ); }; };
 22 | 		FAC7909824A794D700EA977D /* Conductor.swift in Sources */ = {isa = PBXBuildFile; fileRef = FAC7909724A794D700EA977D /* Conductor.swift */; };
 23 | 		FAC7909D24A798CE00EA977D /* AudioToolbox.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = FAC7909C24A798CE00EA977D /* AudioToolbox.framework */; };
 24 | /* End PBXBuildFile section */
 25 | 
 26 | /* Begin PBXCopyFilesBuildPhase section */
 27 | 		FAC7909324A7944900EA977D /* Embed Frameworks */ = {
 28 | 			isa = PBXCopyFilesBuildPhase;
 29 | 			buildActionMask = 2147483647;
 30 | 			dstPath = "";
 31 | 			dstSubfolderSpec = 10;
 32 | 			files = (
 33 | 				FAC7909624A7945700EA977D /* AudioKitUI.framework in Embed Frameworks */,
 34 | 				FAC7909224A7944900EA977D /* AudioKit.framework in Embed Frameworks */,
 35 | 			);
 36 | 			name = "Embed Frameworks";
 37 | 			runOnlyForDeploymentPostprocessing = 0;
 38 | 		};
 39 | /* End PBXCopyFilesBuildPhase section */
 40 | 
 41 | /* Begin PBXFileReference section */
 42 | 		FA9F16A524D320B200401F2D /* AmplitudeVisualizer.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AmplitudeVisualizer.swift; sourceTree = "<group>"; };
 43 | 		FAC4004E24D326570078C6D4 /* VerticalBar.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = VerticalBar.swift; sourceTree = "<group>"; };
 44 | 		FAC7907824A7940B00EA977D /* Visualizer.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = Visualizer.app; sourceTree = BUILT_PRODUCTS_DIR; };
 45 | 		FAC7907B24A7940C00EA977D /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
 46 | 		FAC7907D24A7940C00EA977D /* SceneDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SceneDelegate.swift; sourceTree = "<group>"; };
 47 | 		FAC7907F24A7940C00EA977D /* ContentView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ContentView.swift; sourceTree = "<group>"; };
 48 | 		FAC7908124A7940F00EA977D /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
 49 | 		FAC7908424A7940F00EA977D /* Preview Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = "Preview Assets.xcassets"; sourceTree = "<group>"; };
 50 | 		FAC7908724A7940F00EA977D /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
 51 | 		FAC7908924A7940F00EA977D /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
 52 | 		FAC7909024A7944900EA977D /* AudioKit.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = AudioKit.framework; path = "../../AudioKit-iOS/AudioKit.framework"; sourceTree = "<group>"; };
 53 | 		FAC7909424A7945700EA977D /* AudioKitUI.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = AudioKitUI.framework; path = "../../AudioKit-iOS/AudioKitUI.framework"; sourceTree = "<group>"; };
 54 | 		FAC7909724A794D700EA977D /* Conductor.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Conductor.swift; sourceTree = "<group>"; };
 55 | 		FAC7909B24A798CE00EA977D /* Visualizer.entitlements */ = {isa = PBXFileReference; lastKnownFileType = text.plist.entitlements; path = Visualizer.entitlements; sourceTree = "<group>"; };
 56 | 		FAC7909C24A798CE00EA977D /* AudioToolbox.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = AudioToolbox.framework; path = System/Library/Frameworks/AudioToolbox.framework; sourceTree = SDKROOT; };
 57 | /* End PBXFileReference section */
 58 | 
 59 | /* Begin PBXFrameworksBuildPhase section */
 60 | 		FAC7907524A7940B00EA977D /* Frameworks */ = {
 61 | 			isa = PBXFrameworksBuildPhase;
 62 | 			buildActionMask = 2147483647;
 63 | 			files = (
 64 | 				FAC7909524A7945700EA977D /* AudioKitUI.framework in Frameworks */,
 65 | 				FAC7909124A7944900EA977D /* AudioKit.framework in Frameworks */,
 66 | 				FAC7909D24A798CE00EA977D /* AudioToolbox.framework in Frameworks */,
 67 | 			);
 68 | 			runOnlyForDeploymentPostprocessing = 0;
 69 | 		};
 70 | /* End PBXFrameworksBuildPhase section */
 71 | 
 72 | /* Begin PBXGroup section */
 73 | 		FA300A0924E7448100E4068C /* Views */ = {
 74 | 			isa = PBXGroup;
 75 | 			children = (
 76 | 				FAC7907F24A7940C00EA977D /* ContentView.swift */,
 77 | 				FA9F16A524D320B200401F2D /* AmplitudeVisualizer.swift */,
 78 | 				FAC4004E24D326570078C6D4 /* VerticalBar.swift */,
 79 | 			);
 80 | 			path = Views;
 81 | 			sourceTree = "<group>";
 82 | 		};
 83 | 		FAA8C38A24E744F800EEEE59 /* Models */ = {
 84 | 			isa = PBXGroup;
 85 | 			children = (
 86 | 				FAC7909724A794D700EA977D /* Conductor.swift */,
 87 | 			);
 88 | 			path = Models;
 89 | 			sourceTree = "<group>";
 90 | 		};
 91 | 		FAC7906F24A7940B00EA977D = {
 92 | 			isa = PBXGroup;
 93 | 			children = (
 94 | 				FAC7907A24A7940B00EA977D /* Visualizer */,
 95 | 				FAC7907924A7940B00EA977D /* Products */,
 96 | 				FAC7908F24A7944900EA977D /* Frameworks */,
 97 | 			);
 98 | 			sourceTree = "<group>";
 99 | 		};
100 | 		FAC7907924A7940B00EA977D /* Products */ = {
101 | 			isa = PBXGroup;
102 | 			children = (
103 | 				FAC7907824A7940B00EA977D /* Visualizer.app */,
104 | 			);
105 | 			name = Products;
106 | 			sourceTree = "<group>";
107 | 		};
108 | 		FAC7907A24A7940B00EA977D /* Visualizer */ = {
109 | 			isa = PBXGroup;
110 | 			children = (
111 | 				FAC7909B24A798CE00EA977D /* Visualizer.entitlements */,
112 | 				FAC7907B24A7940C00EA977D /* AppDelegate.swift */,
113 | 				FAC7907D24A7940C00EA977D /* SceneDelegate.swift */,
114 | 				FAA8C38A24E744F800EEEE59 /* Models */,
115 | 				FA300A0924E7448100E4068C /* Views */,
116 | 				FAC7908124A7940F00EA977D /* Assets.xcassets */,
117 | 				FAC7908624A7940F00EA977D /* LaunchScreen.storyboard */,
118 | 				FAC7908924A7940F00EA977D /* Info.plist */,
119 | 				FAC7908324A7940F00EA977D /* Preview Content */,
120 | 			);
121 | 			path = Visualizer;
122 | 			sourceTree = "<group>";
123 | 		};
124 | 		FAC7908324A7940F00EA977D /* Preview Content */ = {
125 | 			isa = PBXGroup;
126 | 			children = (
127 | 				FAC7908424A7940F00EA977D /* Preview Assets.xcassets */,
128 | 			);
129 | 			path = "Preview Content";
130 | 			sourceTree = "<group>";
131 | 		};
132 | 		FAC7908F24A7944900EA977D /* Frameworks */ = {
133 | 			isa = PBXGroup;
134 | 			children = (
135 | 				FAC7909C24A798CE00EA977D /* AudioToolbox.framework */,
136 | 				FAC7909424A7945700EA977D /* AudioKitUI.framework */,
137 | 				FAC7909024A7944900EA977D /* AudioKit.framework */,
138 | 			);
139 | 			name = Frameworks;
140 | 			sourceTree = "<group>";
141 | 		};
142 | /* End PBXGroup section */
143 | 
144 | /* Begin PBXNativeTarget section */
145 | 		FAC7907724A7940B00EA977D /* Visualizer */ = {
146 | 			isa = PBXNativeTarget;
147 | 			buildConfigurationList = FAC7908C24A7940F00EA977D /* Build configuration list for PBXNativeTarget "Visualizer" */;
148 | 			buildPhases = (
149 | 				FAC7907424A7940B00EA977D /* Sources */,
150 | 				FAC7907524A7940B00EA977D /* Frameworks */,
151 | 				FAC7907624A7940B00EA977D /* Resources */,
152 | 				FAC7909324A7944900EA977D /* Embed Frameworks */,
153 | 			);
154 | 			buildRules = (
155 | 			);
156 | 			dependencies = (
157 | 			);
158 | 			name = Visualizer;
159 | 			productName = Visualizer;
160 | 			productReference = FAC7907824A7940B00EA977D /* Visualizer.app */;
161 | 			productType = "com.apple.product-type.application";
162 | 		};
163 | /* End PBXNativeTarget section */
164 | 
165 | /* Begin PBXProject section */
166 | 		FAC7907024A7940B00EA977D /* Project object */ = {
167 | 			isa = PBXProject;
168 | 			attributes = {
169 | 				LastSwiftUpdateCheck = 1150;
170 | 				LastUpgradeCheck = 1150;
171 | 				ORGANIZATIONNAME = "Matt Pfeiffer";
172 | 				TargetAttributes = {
173 | 					FAC7907724A7940B00EA977D = {
174 | 						CreatedOnToolsVersion = 11.5;
175 | 					};
176 | 				};
177 | 			};
178 | 			buildConfigurationList = FAC7907324A7940B00EA977D /* Build configuration list for PBXProject "Visualizer" */;
179 | 			compatibilityVersion = "Xcode 9.3";
180 | 			developmentRegion = en;
181 | 			hasScannedForEncodings = 0;
182 | 			knownRegions = (
183 | 				en,
184 | 				Base,
185 | 			);
186 | 			mainGroup = FAC7906F24A7940B00EA977D;
187 | 			productRefGroup = FAC7907924A7940B00EA977D /* Products */;
188 | 			projectDirPath = "";
189 | 			projectRoot = "";
190 | 			targets = (
191 | 				FAC7907724A7940B00EA977D /* Visualizer */,
192 | 			);
193 | 		};
194 | /* End PBXProject section */
195 | 
196 | /* Begin PBXResourcesBuildPhase section */
197 | 		FAC7907624A7940B00EA977D /* Resources */ = {
198 | 			isa = PBXResourcesBuildPhase;
199 | 			buildActionMask = 2147483647;
200 | 			files = (
201 | 				FAC7908824A7940F00EA977D /* LaunchScreen.storyboard in Resources */,
202 | 				FAC7908524A7940F00EA977D /* Preview Assets.xcassets in Resources */,
203 | 				FAC7908224A7940F00EA977D /* Assets.xcassets in Resources */,
204 | 			);
205 | 			runOnlyForDeploymentPostprocessing = 0;
206 | 		};
207 | /* End PBXResourcesBuildPhase section */
208 | 
209 | /* Begin PBXSourcesBuildPhase section */
210 | 		FAC7907424A7940B00EA977D /* Sources */ = {
211 | 			isa = PBXSourcesBuildPhase;
212 | 			buildActionMask = 2147483647;
213 | 			files = (
214 | 				FA9F16A624D320B200401F2D /* AmplitudeVisualizer.swift in Sources */,
215 | 				FAC7907C24A7940C00EA977D /* AppDelegate.swift in Sources */,
216 | 				FAC7907E24A7940C00EA977D /* SceneDelegate.swift in Sources */,
217 | 				FAC4004F24D326570078C6D4 /* VerticalBar.swift in Sources */,
218 | 				FAC7908024A7940C00EA977D /* ContentView.swift in Sources */,
219 | 				FAC7909824A794D700EA977D /* Conductor.swift in Sources */,
220 | 			);
221 | 			runOnlyForDeploymentPostprocessing = 0;
222 | 		};
223 | /* End PBXSourcesBuildPhase section */
224 | 
225 | /* Begin PBXVariantGroup section */
226 | 		FAC7908624A7940F00EA977D /* LaunchScreen.storyboard */ = {
227 | 			isa = PBXVariantGroup;
228 | 			children = (
229 | 				FAC7908724A7940F00EA977D /* Base */,
230 | 			);
231 | 			name = LaunchScreen.storyboard;
232 | 			sourceTree = "<group>";
233 | 		};
234 | /* End PBXVariantGroup section */
235 | 
236 | /* Begin XCBuildConfiguration section */
237 | 		FAC7908A24A7940F00EA977D /* Debug */ = {
238 | 			isa = XCBuildConfiguration;
239 | 			buildSettings = {
240 | 				ALWAYS_SEARCH_USER_PATHS = NO;
241 | 				CLANG_ANALYZER_NONNULL = YES;
242 | 				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
243 | 				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
244 | 				CLANG_CXX_LIBRARY = "libc++";
245 | 				CLANG_ENABLE_MODULES = YES;
246 | 				CLANG_ENABLE_OBJC_ARC = YES;
247 | 				CLANG_ENABLE_OBJC_WEAK = YES;
248 | 				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
249 | 				CLANG_WARN_BOOL_CONVERSION = YES;
250 | 				CLANG_WARN_COMMA = YES;
251 | 				CLANG_WARN_CONSTANT_CONVERSION = YES;
252 | 				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
253 | 				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
254 | 				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
255 | 				CLANG_WARN_EMPTY_BODY = YES;
256 | 				CLANG_WARN_ENUM_CONVERSION = YES;
257 | 				CLANG_WARN_INFINITE_RECURSION = YES;
258 | 				CLANG_WARN_INT_CONVERSION = YES;
259 | 				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
260 | 				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
261 | 				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
262 | 				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
263 | 				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
264 | 				CLANG_WARN_STRICT_PROTOTYPES = YES;
265 | 				CLANG_WARN_SUSPICIOUS_MOVE = YES;
266 | 				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
267 | 				CLANG_WARN_UNREACHABLE_CODE = YES;
268 | 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
269 | 				COPY_PHASE_STRIP = NO;
270 | 				DEBUG_INFORMATION_FORMAT = dwarf;
271 | 				ENABLE_STRICT_OBJC_MSGSEND = YES;
272 | 				ENABLE_TESTABILITY = YES;
273 | 				GCC_C_LANGUAGE_STANDARD = gnu11;
274 | 				GCC_DYNAMIC_NO_PIC = NO;
275 | 				GCC_NO_COMMON_BLOCKS = YES;
276 | 				GCC_OPTIMIZATION_LEVEL = 0;
277 | 				GCC_PREPROCESSOR_DEFINITIONS = (
278 | 					"DEBUG=1",
279 | 					"$(inherited)",
280 | 				);
281 | 				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
282 | 				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
283 | 				GCC_WARN_UNDECLARED_SELECTOR = YES;
284 | 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
285 | 				GCC_WARN_UNUSED_FUNCTION = YES;
286 | 				GCC_WARN_UNUSED_VARIABLE = YES;
287 | 				IPHONEOS_DEPLOYMENT_TARGET = 13.6;
288 | 				MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
289 | 				MTL_FAST_MATH = YES;
290 | 				ONLY_ACTIVE_ARCH = YES;
291 | 				SDKROOT = iphoneos;
292 | 				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
293 | 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
294 | 			};
295 | 			name = Debug;
296 | 		};
297 | 		FAC7908B24A7940F00EA977D /* Release */ = {
298 | 			isa = XCBuildConfiguration;
299 | 			buildSettings = {
300 | 				ALWAYS_SEARCH_USER_PATHS = NO;
301 | 				CLANG_ANALYZER_NONNULL = YES;
302 | 				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
303 | 				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
304 | 				CLANG_CXX_LIBRARY = "libc++";
305 | 				CLANG_ENABLE_MODULES = YES;
306 | 				CLANG_ENABLE_OBJC_ARC = YES;
307 | 				CLANG_ENABLE_OBJC_WEAK = YES;
308 | 				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
309 | 				CLANG_WARN_BOOL_CONVERSION = YES;
310 | 				CLANG_WARN_COMMA = YES;
311 | 				CLANG_WARN_CONSTANT_CONVERSION = YES;
312 | 				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
313 | 				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
314 | 				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
315 | 				CLANG_WARN_EMPTY_BODY = YES;
316 | 				CLANG_WARN_ENUM_CONVERSION = YES;
317 | 				CLANG_WARN_INFINITE_RECURSION = YES;
318 | 				CLANG_WARN_INT_CONVERSION = YES;
319 | 				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
320 | 				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
321 | 				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
322 | 				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
323 | 				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
324 | 				CLANG_WARN_STRICT_PROTOTYPES = YES;
325 | 				CLANG_WARN_SUSPICIOUS_MOVE = YES;
326 | 				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
327 | 				CLANG_WARN_UNREACHABLE_CODE = YES;
328 | 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
329 | 				COPY_PHASE_STRIP = NO;
330 | 				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
331 | 				ENABLE_NS_ASSERTIONS = NO;
332 | 				ENABLE_STRICT_OBJC_MSGSEND = YES;
333 | 				GCC_C_LANGUAGE_STANDARD = gnu11;
334 | 				GCC_NO_COMMON_BLOCKS = YES;
335 | 				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
336 | 				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
337 | 				GCC_WARN_UNDECLARED_SELECTOR = YES;
338 | 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
339 | 				GCC_WARN_UNUSED_FUNCTION = YES;
340 | 				GCC_WARN_UNUSED_VARIABLE = YES;
341 | 				IPHONEOS_DEPLOYMENT_TARGET = 13.6;
342 | 				MTL_ENABLE_DEBUG_INFO = NO;
343 | 				MTL_FAST_MATH = YES;
344 | 				SDKROOT = iphoneos;
345 | 				SWIFT_COMPILATION_MODE = wholemodule;
346 | 				SWIFT_OPTIMIZATION_LEVEL = "-O";
347 | 				VALIDATE_PRODUCT = YES;
348 | 			};
349 | 			name = Release;
350 | 		};
351 | 		FAC7908D24A7940F00EA977D /* Debug */ = {
352 | 			isa = XCBuildConfiguration;
353 | 			buildSettings = {
354 | 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
355 | 				CODE_SIGN_ENTITLEMENTS = Visualizer/Visualizer.entitlements;
356 | 				CODE_SIGN_STYLE = Automatic;
357 | 				DEVELOPMENT_ASSET_PATHS = "\"Visualizer/Preview Content\"";
358 | 				DEVELOPMENT_TEAM = L2FL95P32D;
359 | 				ENABLE_PREVIEWS = YES;
360 | 				FRAMEWORK_SEARCH_PATHS = (
361 | 					"\"/Users/macbook/Sync/Code/Xcode/AudioDev/AudioKit-iOS\"",
362 | 					"\"/Users/macbook/Sync/Code/Xcode/HapticsDev/lofelt-studio-0.8.2-mac/sdk/ios-framework/universal\"",
363 | 				);
364 | 				INFOPLIST_FILE = Visualizer/Info.plist;
365 | 				LD_RUNPATH_SEARCH_PATHS = (
366 | 					"$(inherited)",
367 | 					"@executable_path/Frameworks",
368 | 				);
369 | 				OTHER_LDFLAGS = "-lc++";
370 | 				PRODUCT_BUNDLE_IDENTIFIER = com.MattPfeiffer.Visualizer;
371 | 				PRODUCT_NAME = "$(TARGET_NAME)";
372 | 				SWIFT_VERSION = 5.0;
373 | 				TARGETED_DEVICE_FAMILY = "1,2";
374 | 			};
375 | 			name = Debug;
376 | 		};
377 | 		FAC7908E24A7940F00EA977D /* Release */ = {
378 | 			isa = XCBuildConfiguration;
379 | 			buildSettings = {
380 | 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
381 | 				CODE_SIGN_ENTITLEMENTS = Visualizer/Visualizer.entitlements;
382 | 				CODE_SIGN_STYLE = Automatic;
383 | 				DEVELOPMENT_ASSET_PATHS = "\"Visualizer/Preview Content\"";
384 | 				DEVELOPMENT_TEAM = L2FL95P32D;
385 | 				ENABLE_PREVIEWS = YES;
386 | 				FRAMEWORK_SEARCH_PATHS = (
387 | 					"\"/Users/macbook/Sync/Code/Xcode/AudioDev/AudioKit-iOS\"",
388 | 					"\"/Users/macbook/Sync/Code/Xcode/HapticsDev/lofelt-studio-0.8.2-mac/sdk/ios-framework/universal\"",
389 | 				);
390 | 				INFOPLIST_FILE = Visualizer/Info.plist;
391 | 				LD_RUNPATH_SEARCH_PATHS = (
392 | 					"$(inherited)",
393 | 					"@executable_path/Frameworks",
394 | 				);
395 | 				OTHER_LDFLAGS = "-lc++";
396 | 				PRODUCT_BUNDLE_IDENTIFIER = com.MattPfeiffer.Visualizer;
397 | 				PRODUCT_NAME = "$(TARGET_NAME)";
398 | 				SWIFT_VERSION = 5.0;
399 | 				TARGETED_DEVICE_FAMILY = "1,2";
400 | 			};
401 | 			name = Release;
402 | 		};
403 | /* End XCBuildConfiguration section */
404 | 
405 | /* Begin XCConfigurationList section */
406 | 		FAC7907324A7940B00EA977D /* Build configuration list for PBXProject "Visualizer" */ = {
407 | 			isa = XCConfigurationList;
408 | 			buildConfigurations = (
409 | 				FAC7908A24A7940F00EA977D /* Debug */,
410 | 				FAC7908B24A7940F00EA977D /* Release */,
411 | 			);
412 | 			defaultConfigurationIsVisible = 0;
413 | 			defaultConfigurationName = Release;
414 | 		};
415 | 		FAC7908C24A7940F00EA977D /* Build configuration list for PBXNativeTarget "Visualizer" */ = {
416 | 			isa = XCConfigurationList;
417 | 			buildConfigurations = (
418 | 				FAC7908D24A7940F00EA977D /* Debug */,
419 | 				FAC7908E24A7940F00EA977D /* Release */,
420 | 			);
421 | 			defaultConfigurationIsVisible = 0;
422 | 			defaultConfigurationName = Release;
423 | 		};
424 | /* End XCConfigurationList section */
425 | 	};
426 | 	rootObject = FAC7907024A7940B00EA977D /* Project object */;
427 | }
428 | 


--------------------------------------------------------------------------------
/Visualizer.xcodeproj/project.xcworkspace/contents.xcworkspacedata:
--------------------------------------------------------------------------------
1 | <?xml version="1.0" encoding="UTF-8"?>
2 | <Workspace
3 |    version = "1.0">
4 |    <FileRef
5 |       location = "self:Visualizer.xcodeproj">
6 |    </FileRef>
7 | </Workspace>
8 | 


--------------------------------------------------------------------------------
/Visualizer.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist:
--------------------------------------------------------------------------------
1 | <?xml version="1.0" encoding="UTF-8"?>
2 | <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
3 | <plist version="1.0">
4 | <dict>
5 | 	<key>IDEDidComputeMac32BitWarning</key>
6 | 	<true/>
7 | </dict>
8 | </plist>
9 | 


--------------------------------------------------------------------------------
/Visualizer.xcodeproj/xcuserdata/macbook.xcuserdatad/xcschemes/xcschememanagement.plist:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8"?>
 2 | <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 3 | <plist version="1.0">
 4 | <dict>
 5 | 	<key>SchemeUserState</key>
 6 | 	<dict>
 7 | 		<key>Visualizer.xcscheme_^#shared#^_</key>
 8 | 		<dict>
 9 | 			<key>orderHint</key>
10 | 			<integer>0</integer>
11 | 		</dict>
12 | 	</dict>
13 | </dict>
14 | </plist>
15 | 


--------------------------------------------------------------------------------
/Visualizer/AppDelegate.swift:
--------------------------------------------------------------------------------
 1 | //
 2 | //  AppDelegate.swift
 3 | //  Visualizer
 4 | //
 5 | //  Created by Macbook on 6/27/20.
 6 | //  Copyright © 2020 Matt Pfeiffer. All rights reserved.
 7 | //
 8 | 
 9 | import UIKit
10 | 
11 | @UIApplicationMain
12 | class AppDelegate: UIResponder, UIApplicationDelegate {
13 | 
14 | 
15 | 
16 |     func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
17 |         // Override point for customization after application launch.
18 |         return true
19 |     }
20 | 
21 |     // MARK: UISceneSession Lifecycle
22 | 
23 |     func application(_ application: UIApplication, configurationForConnecting connectingSceneSession: UISceneSession, options: UIScene.ConnectionOptions) -> UISceneConfiguration {
24 |         // Called when a new scene session is being created.
25 |         // Use this method to select a configuration to create the new scene with.
26 |         return UISceneConfiguration(name: "Default Configuration", sessionRole: connectingSceneSession.role)
27 |     }
28 | 
29 |     func application(_ application: UIApplication, didDiscardSceneSessions sceneSessions: Set<UISceneSession>) {
30 |         // Called when the user discards a scene session.
31 |         // If any sessions were discarded while the application was not running, this will be called shortly after application:didFinishLaunchingWithOptions.
32 |         // Use this method to release any resources that were specific to the discarded scenes, as they will not return.
33 |     }
34 | 
35 | 
36 | }
37 | 
38 | 


--------------------------------------------------------------------------------
/Visualizer/Assets.xcassets/AppIcon.appiconset/Contents.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "images" : [
 3 |     {
 4 |       "idiom" : "iphone",
 5 |       "scale" : "2x",
 6 |       "size" : "20x20"
 7 |     },
 8 |     {
 9 |       "idiom" : "iphone",
10 |       "scale" : "3x",
11 |       "size" : "20x20"
12 |     },
13 |     {
14 |       "idiom" : "iphone",
15 |       "scale" : "2x",
16 |       "size" : "29x29"
17 |     },
18 |     {
19 |       "idiom" : "iphone",
20 |       "scale" : "3x",
21 |       "size" : "29x29"
22 |     },
23 |     {
24 |       "idiom" : "iphone",
25 |       "scale" : "2x",
26 |       "size" : "40x40"
27 |     },
28 |     {
29 |       "idiom" : "iphone",
30 |       "scale" : "3x",
31 |       "size" : "40x40"
32 |     },
33 |     {
34 |       "idiom" : "iphone",
35 |       "scale" : "2x",
36 |       "size" : "60x60"
37 |     },
38 |     {
39 |       "idiom" : "iphone",
40 |       "scale" : "3x",
41 |       "size" : "60x60"
42 |     },
43 |     {
44 |       "idiom" : "ipad",
45 |       "scale" : "1x",
46 |       "size" : "20x20"
47 |     },
48 |     {
49 |       "idiom" : "ipad",
50 |       "scale" : "2x",
51 |       "size" : "20x20"
52 |     },
53 |     {
54 |       "idiom" : "ipad",
55 |       "scale" : "1x",
56 |       "size" : "29x29"
57 |     },
58 |     {
59 |       "idiom" : "ipad",
60 |       "scale" : "2x",
61 |       "size" : "29x29"
62 |     },
63 |     {
64 |       "idiom" : "ipad",
65 |       "scale" : "1x",
66 |       "size" : "40x40"
67 |     },
68 |     {
69 |       "idiom" : "ipad",
70 |       "scale" : "2x",
71 |       "size" : "40x40"
72 |     },
73 |     {
74 |       "idiom" : "ipad",
75 |       "scale" : "1x",
76 |       "size" : "76x76"
77 |     },
78 |     {
79 |       "idiom" : "ipad",
80 |       "scale" : "2x",
81 |       "size" : "76x76"
82 |     },
83 |     {
84 |       "idiom" : "ipad",
85 |       "scale" : "2x",
86 |       "size" : "83.5x83.5"
87 |     },
88 |     {
89 |       "idiom" : "ios-marketing",
90 |       "scale" : "1x",
91 |       "size" : "1024x1024"
92 |     }
93 |   ],
94 |   "info" : {
95 |     "author" : "xcode",
96 |     "version" : 1
97 |   }
98 | }
99 | 


--------------------------------------------------------------------------------
/Visualizer/Assets.xcassets/Contents.json:
--------------------------------------------------------------------------------
1 | {
2 |   "info" : {
3 |     "author" : "xcode",
4 |     "version" : 1
5 |   }
6 | }
7 | 


--------------------------------------------------------------------------------
/Visualizer/Base.lproj/LaunchScreen.storyboard:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 2 | <document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
 3 |     <dependencies>
 4 |         <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
 5 |         <capability name="Safe area layout guides" minToolsVersion="9.0"/>
 6 |         <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
 7 |     </dependencies>
 8 |     <scenes>
 9 |         <!--View Controller-->
10 |         <scene sceneID="EHf-IW-A2E">
11 |             <objects>
12 |                 <viewController id="01J-lp-oVM" sceneMemberID="viewController">
13 |                     <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
14 |                         <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
15 |                         <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
16 |                         <color key="backgroundColor" xcode11CocoaTouchSystemColor="systemBackgroundColor" cocoaTouchSystemColor="whiteColor"/>
17 |                         <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
18 |                     </view>
19 |                 </viewController>
20 |                 <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
21 |             </objects>
22 |             <point key="canvasLocation" x="53" y="375"/>
23 |         </scene>
24 |     </scenes>
25 | </document>
26 | 


--------------------------------------------------------------------------------
/Visualizer/Info.plist:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8"?>
 2 | <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 3 | <plist version="1.0">
 4 | <dict>
 5 | 	<key>CFBundleDevelopmentRegion</key>
 6 | 	<string>$(DEVELOPMENT_LANGUAGE)</string>
 7 | 	<key>CFBundleExecutable</key>
 8 | 	<string>$(EXECUTABLE_NAME)</string>
 9 | 	<key>CFBundleIdentifier</key>
10 | 	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
11 | 	<key>CFBundleInfoDictionaryVersion</key>
12 | 	<string>6.0</string>
13 | 	<key>CFBundleName</key>
14 | 	<string>$(PRODUCT_NAME)</string>
15 | 	<key>CFBundlePackageType</key>
16 | 	<string>$(PRODUCT_BUNDLE_PACKAGE_TYPE)</string>
17 | 	<key>CFBundleShortVersionString</key>
18 | 	<string>1.0</string>
19 | 	<key>CFBundleVersion</key>
20 | 	<string>1</string>
21 | 	<key>LSRequiresIPhoneOS</key>
22 | 	<true/>
23 | 	<key>NSMicrophoneUsageDescription</key>
24 | 	<string>Required to analyze ambient audio.</string>
25 | 	<key>UIApplicationSceneManifest</key>
26 | 	<dict>
27 | 		<key>UIApplicationSupportsMultipleScenes</key>
28 | 		<false/>
29 | 		<key>UISceneConfigurations</key>
30 | 		<dict>
31 | 			<key>UIWindowSceneSessionRoleApplication</key>
32 | 			<array>
33 | 				<dict>
34 | 					<key>UISceneConfigurationName</key>
35 | 					<string>Default Configuration</string>
36 | 					<key>UISceneDelegateClassName</key>
37 | 					<string>$(PRODUCT_MODULE_NAME).SceneDelegate</string>
38 | 				</dict>
39 | 			</array>
40 | 		</dict>
41 | 	</dict>
42 | 	<key>UIBackgroundModes</key>
43 | 	<array>
44 | 		<string>audio</string>
45 | 	</array>
46 | 	<key>UILaunchStoryboardName</key>
47 | 	<string>LaunchScreen</string>
48 | 	<key>UIRequiredDeviceCapabilities</key>
49 | 	<array>
50 | 		<string>armv7</string>
51 | 	</array>
52 | 	<key>UISupportedInterfaceOrientations</key>
53 | 	<array>
54 | 		<string>UIInterfaceOrientationPortrait</string>
55 | 		<string>UIInterfaceOrientationLandscapeLeft</string>
56 | 		<string>UIInterfaceOrientationLandscapeRight</string>
57 | 	</array>
58 | 	<key>UISupportedInterfaceOrientations~ipad</key>
59 | 	<array>
60 | 		<string>UIInterfaceOrientationPortrait</string>
61 | 		<string>UIInterfaceOrientationPortraitUpsideDown</string>
62 | 		<string>UIInterfaceOrientationLandscapeLeft</string>
63 | 		<string>UIInterfaceOrientationLandscapeRight</string>
64 | 	</array>
65 | </dict>
66 | </plist>
67 | 


--------------------------------------------------------------------------------
/Visualizer/Models/Conductor.swift:
--------------------------------------------------------------------------------
  1 | //
  2 | //  Conductor.swift
  3 | //  Visualizer
  4 | //
  5 | //  Created by Macbook on 6/27/20.
  6 | //  Copyright © 2020 Matt Pfeiffer. All rights reserved.
  7 | //
  8 | 
  9 | import AudioKit
 10 | 
 11 | /// The persistent data object of the application (it does the audio processing and publishes changes to the UI)
 12 | final class Conductor : ObservableObject{
 13 | 
 14 |     /// Single shared data model
 15 |     static let shared = Conductor()
 16 |     
 17 |     /// default microphone
 18 |     let mic = AKMicrophone()
 19 |     
 20 |     /// mixing node for microphone input - routes to plotting and recording paths
 21 |     let micMixer = AKMixer()
 22 |     
 23 |     /// time interval in seconds for repeating timer callback
 24 |     let refreshTimeInterval : Double = 0.02
 25 |     
 26 |     /// tap for the fft data
 27 |     let fft : AKFFTTap
 28 |     
 29 |     /// size of fft
 30 |     let FFT_SIZE = 512
 31 |     
 32 |     /// audio sample rate
 33 |     let sampleRate : double_t = 44100
 34 |     
 35 |     /// limiter to prevent excessive volume at the output - just in case, it's the music producer in me :)
 36 |     let outputLimiter = AKPeakLimiter()
 37 |     
 38 |     /// bin amplitude values (range from 0.0 to 1.0)
 39 |     @Published var amplitudes : [Double] = Array(repeating: 0.5, count: 50)
 40 |     
 41 |     /// constructor - runs during initialization of the object
 42 |     init(){
 43 |         
 44 |         // connect the fft tap to the mic mixer (this allows us to analyze the audio at the micMixer node)
 45 |         fft = AKFFTTap.init(micMixer)
 46 |         
 47 |         // route the audio from the microphone to the limiter
 48 |         setupMic()
 49 |         
 50 |         // set the limiter as the last node in our audio chain
 51 |         AudioKit.output = outputLimiter
 52 |         
 53 |         // do any AudioKit setting changes before starting the AudioKit engine
 54 |         setAudioKitSettings()
 55 | 
 56 |         // start the AudioKit engine
 57 |         do{
 58 |             try AudioKit.start()
 59 |         }
 60 |         catch{
 61 |             assert(false, error.localizedDescription)
 62 |         }
 63 |         
 64 |         // create a repeating timer at the rate of our chosen time interval - this updates the amplitudes each timer callback
 65 |         Timer.scheduledTimer(withTimeInterval: refreshTimeInterval, repeats: true) { timer in
 66 |             self.updateAmplitudes()
 67 |         }
 68 | 
 69 |     }
 70 |     
 71 |     /// Sets AudioKit to appropriate settings
 72 |     func setAudioKitSettings(){
 73 | 
 74 |         do {
 75 |             try AKSettings.setSession(category: .ambient, with: [.mixWithOthers])
 76 |         } catch {
 77 |             AKLog("Could not set session category.")
 78 |         }
 79 |         
 80 |     }
 81 |     
 82 |     /// Does all the setup required for microphone input
 83 |     func setupMic(){
 84 |         
 85 |         // route mic to the micMixer which is tapped by our fft
 86 |         mic?.setOutput(to: micMixer)
 87 |         
 88 |         // route mixMixer to a mixer with no volume so that we don't output audio
 89 |         let silentMixer = AKMixer(micMixer)
 90 |         silentMixer.volume = 0.0
 91 |         
 92 |         // route the silent Mixer to the limiter (you must always route the audio chain to AudioKit.output)
 93 |         silentMixer.setOutput(to: outputLimiter)
 94 |         
 95 |     }
 96 |     
 97 |     /// Analyze fft data and write to our amplitudes array
 98 |     @objc func updateAmplitudes(){
 99 |         //If you are interested in knowing more about this calculation, I have provided a couple recommended links at the bottom of this file.
100 |         
101 |         // loop by two through all the fft data
102 |         for i in stride(from: 0, to: self.FFT_SIZE - 1, by: 2) {
103 | 
104 |             // get the real and imaginary parts of the complex number
105 |             let real = fft.fftData[i]
106 |             let imaginary = fft.fftData[i + 1]
107 |             
108 |             let normalizedBinMagnitude = 2.0 * sqrt(real * real + imaginary * imaginary) / self.FFT_SIZE
109 |             let amplitude = (20.0 * log10(normalizedBinMagnitude))
110 |             
111 |             // scale the resulting data
112 |             var scaledAmplitude = (amplitude + 250) / 229.80
113 |             
114 |             // restrict the range to 0.0 - 1.0
115 |             if (scaledAmplitude < 0) {
116 |                 scaledAmplitude = 0
117 |             }
118 |             if (scaledAmplitude > 1.0) {
119 |                 scaledAmplitude = 1.0
120 |             }
121 |             
122 |             // add the amplitude to our array (further scaling array to look good in visualizer)
123 |             DispatchQueue.main.async {
124 |                 if(i/2 < self.amplitudes.count){
125 |                     self.amplitudes[i/2] = self.mapy(n: scaledAmplitude, start1: 0.3, stop1: 0.9, start2: 0.0, stop2: 1.0)
126 |                 }
127 |             }
128 |         }
129 |         
130 |     }
131 |     
132 |     /// simple mapping function to scale a value to a different range
133 |     func mapy(n:Double, start1:Double, stop1:Double, start2:Double, stop2:Double) -> Double {
134 |         return ((n-start1)/(stop1-start1))*(stop2-start2)+start2;
135 |     };
136 | }
137 | 
138 | /*
139 |  Visual introduction to the fourier transform:
140 |  https://www.youtube.com/watch?v=spUNpyF58BY
141 |  Shoutout to Grant Sanderson - thank you for your videos!
142 |  
143 |  Discrete fourier transform:
144 |  https://www.youtube.com/watch?v=nl9TZanwbBk
145 |  
146 |  Fast fourier transform:
147 |  https://www.youtube.com/watch?v=E8HeD-MUrjY
148 |  Shoutout to Steve Brunton - thank you for your videos!
149 |  
150 |  Google groups conversation explaining how to use the fft data to calculate bin decibel levels:
151 |  https://groups.google.com/g/comp.dsp/c/cZsS1ftN5oI?pli=1
152 |  Shoutout to Stephan M. Sprenger - thank you for sharing!
153 |  */
154 | 


--------------------------------------------------------------------------------
/Visualizer/Preview Content/Preview Assets.xcassets/Contents.json:
--------------------------------------------------------------------------------
1 | {
2 |   "info" : {
3 |     "author" : "xcode",
4 |     "version" : 1
5 |   }
6 | }
7 | 


--------------------------------------------------------------------------------
/Visualizer/SceneDelegate.swift:
--------------------------------------------------------------------------------
 1 | //
 2 | //  SceneDelegate.swift
 3 | //  Visualizer
 4 | //
 5 | //  Created by Macbook on 6/27/20.
 6 | //  Copyright © 2020 Matt Pfeiffer. All rights reserved.
 7 | //
 8 | 
 9 | import UIKit
10 | import SwiftUI
11 | 
12 | class SceneDelegate: UIResponder, UIWindowSceneDelegate {
13 | 
14 |     var window: UIWindow?
15 | 
16 | 
17 |     func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
18 |         // Use this method to optionally configure and attach the UIWindow `window` to the provided UIWindowScene `scene`.
19 |         // If using a storyboard, the `window` property will automatically be initialized and attached to the scene.
20 |         // This delegate does not imply the connecting scene or session are new (see `application:configurationForConnectingSceneSession` instead).
21 | 
22 |         // Create the SwiftUI view that provides the window contents.
23 |         let contentView = ContentView()
24 | 
25 |         // Use a UIHostingController as window root view controller.
26 |         if let windowScene = scene as? UIWindowScene {
27 |             let window = UIWindow(windowScene: windowScene)
28 |             window.rootViewController = UIHostingController(rootView: contentView.environmentObject(Conductor.shared))
29 |             self.window = window
30 |             window.makeKeyAndVisible()
31 |         }
32 |     }
33 | 
34 |     func sceneDidDisconnect(_ scene: UIScene) {
35 |         // Called as the scene is being released by the system.
36 |         // This occurs shortly after the scene enters the background, or when its session is discarded.
37 |         // Release any resources associated with this scene that can be re-created the next time the scene connects.
38 |         // The scene may re-connect later, as its session was not neccessarily discarded (see `application:didDiscardSceneSessions` instead).
39 |     }
40 | 
41 |     func sceneDidBecomeActive(_ scene: UIScene) {
42 |         // Called when the scene has moved from an inactive state to an active state.
43 |         // Use this method to restart any tasks that were paused (or not yet started) when the scene was inactive.
44 |     }
45 | 
46 |     func sceneWillResignActive(_ scene: UIScene) {
47 |         // Called when the scene will move from an active state to an inactive state.
48 |         // This may occur due to temporary interruptions (ex. an incoming phone call).
49 |     }
50 | 
51 |     func sceneWillEnterForeground(_ scene: UIScene) {
52 |         // Called as the scene transitions from the background to the foreground.
53 |         // Use this method to undo the changes made on entering the background.
54 |     }
55 | 
56 |     func sceneDidEnterBackground(_ scene: UIScene) {
57 |         // Called as the scene transitions from the foreground to the background.
58 |         // Use this method to save data, release shared resources, and store enough scene-specific state information
59 |         // to restore the scene back to its current state.
60 |     }
61 | 
62 | 
63 | }
64 | 
65 | 


--------------------------------------------------------------------------------
/Visualizer/Views/AmplitudeVisualizer.swift:
--------------------------------------------------------------------------------
 1 | //
 2 | //  AmplitudeVisualizer.swift
 3 | //  Visualizer
 4 | //
 5 | //  Created by Macbook on 7/30/20.
 6 | //  Copyright © 2020 Matt Pfeiffer. All rights reserved.
 7 | //
 8 | 
 9 | import SwiftUI
10 | 
11 | struct AmplitudeVisualizer: View {
12 |     
13 |     @Binding var amplitudes: [Double]
14 |     
15 |     var body: some View {
16 |         HStack(spacing: 0.0){
17 |             ForEach(0 ..< self.amplitudes.count) { number in
18 |                 VerticalBar(amplitude: self.$amplitudes[number])
19 |             }
20 |         }
21 |         .background(Color.black)
22 |     }
23 | }
24 | 
25 | struct AmplitudeVisualizer_Previews: PreviewProvider {
26 |     static var previews: some View {
27 |         AmplitudeVisualizer(amplitudes: .constant(Array(repeating: 1.0, count: 50)))
28 |     }
29 | }
30 | 


--------------------------------------------------------------------------------
/Visualizer/Views/ContentView.swift:
--------------------------------------------------------------------------------
 1 | //
 2 | //  ContentView.swift
 3 | //  Visualizer
 4 | //
 5 | //  Created by Macbook on 6/27/20.
 6 | //  Copyright © 2020 Matt Pfeiffer. All rights reserved.
 7 | //
 8 | 
 9 | import SwiftUI
10 | 
11 | struct ContentView: View {
12 |     
13 |     @EnvironmentObject var conductor: Conductor
14 |     
15 |     var body: some View {
16 |         AmplitudeVisualizer(amplitudes: $conductor.amplitudes)
17 |         .edgesIgnoringSafeArea(.all)
18 |     }
19 | }
20 | 
21 | struct ContentView_Previews: PreviewProvider {
22 |     static var previews: some View {
23 |         ContentView().environmentObject(Conductor.shared)
24 |     }
25 | }
26 | 


--------------------------------------------------------------------------------
/Visualizer/Views/VerticalBar.swift:
--------------------------------------------------------------------------------
 1 | //
 2 | //  VerticalBar.swift
 3 | //  Visualizer
 4 | //
 5 | //  Created by Macbook on 7/30/20.
 6 | //  Copyright © 2020 Matt Pfeiffer. All rights reserved.
 7 | //
 8 | 
 9 | import SwiftUI
10 | 
11 | /// Single bar of Amplitude Visualizer
12 | struct VerticalBar: View {
13 |     
14 |     @Binding var amplitude: Double
15 |     
16 |     var body: some View {
17 |         GeometryReader
18 |             { geometry in
19 |             ZStack(alignment: .bottom){
20 |                 
21 |                 // Colored rectangle in back of ZStack
22 |                 Rectangle()
23 |                     .fill(LinearGradient(gradient: Gradient(colors: [.red, .yellow, .green]), startPoint: .top, endPoint: .center))
24 |                 
25 |                     // blue/purple bar style - try switching this out with the .fill statement above
26 |                     //.fill(LinearGradient(gradient: Gradient(colors: [Color.init(red: 0.0, green: 1.0, blue: 1.0), .blue, .purple]), startPoint: .top, endPoint: .bottom))
27 |                 
28 |                 // Dynamic black mask padded from bottom in relation to the amplitude
29 |                 Rectangle()
30 |                     .fill(Color.black)
31 |                     .mask(Rectangle().padding(.bottom, geometry.size.height * CGFloat(self.amplitude)))
32 |                     .animation(.easeOut(duration: 0.15))
33 |                 
34 |                 // White bar with slower animation for floating effect
35 |                 Rectangle()
36 |                     .fill(Color.white)
37 |                     .frame(height: geometry.size.height * 0.005)
38 |                     .offset(x: 0.0, y: -geometry.size.height * CGFloat(self.amplitude) - geometry.size.height * 0.02)
39 |                     .animation(.easeOut(duration: 0.6))
40 |                 
41 |             }
42 |             .padding(geometry.size.width * 0.1)
43 |             .border(Color.black, width: geometry.size.width * 0.1)
44 |         }
45 |     }
46 |     
47 | }
48 | 
49 | struct VerticalBar_Previews: PreviewProvider {
50 |     static var previews: some View {
51 |         VerticalBar(amplitude: .constant(0.8))
52 |         .previewLayout(.fixed(width: 40, height: 500))
53 |     }
54 | }
55 | 


--------------------------------------------------------------------------------
/Visualizer/Visualizer.entitlements:
--------------------------------------------------------------------------------
1 | <?xml version="1.0" encoding="UTF-8"?>
2 | <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
3 | <plist version="1.0">
4 | <dict/>
5 | </plist>
6 | 


--------------------------------------------------------------------------------