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1{if(null===this._stream||null===this._audioContext||null==this._vadNode||null==this._mediaStreamAudioSourceNode)throw Error("MicVAD has null stream, audio context, or processor adapter");return{stream:this._stream,audioContext:this._audioContext,vadNode:this._vadNode,mediaStreamAudioSourceNode:this._mediaStreamAudioSourceNode}},this.setErrored=t=>{this.initializationState="errored",this.errored=t},this.start=async()=>{switch(this.initializationState){case"uninitialized":d.log.debug("initializing micVAD"),this.initializationState="initializing",this.frameProcessor.resume();try{this._stream=await this.options.getStream()}catch(t){throw t instanceof Error?this.setErrored(t.message):this.setErrored(String(t)),t}if(this.options.audioContext?(console.log("using custom audio context"),this._audioContext=this.options.audioContext):(console.log("using default audio context"),this._audioContext=new AudioContext,this.ownsAudioContext=!0),!this._audioContext)throw this.setErrored("Audio context is null"),Error("Audio context is null");switch(this._audioProcessorAdapterType="auto"==this.options.processorType?"audioWorklet"in this._audioContext&&"function"==typeof AudioWorkletNode?"AudioWorklet":"ScriptProcessor":this.options.processorType,this._audioProcessorAdapterType){case"AudioWorklet":this._vadNode=await h(this.options.baseAssetPath+"vad.worklet.bundle.min.js",this.options.workletOptions,this._audioContext,this.frameSamples,this.processFrame);break;case"ScriptProcessor":this._vadNode=await m(this._audioContext,this.frameSamples,this.processFrame);break;default:throw Error(`Unsupported audio processor adapter type: ${this._audioProcessorAdapterType}`)}this._mediaStreamAudioSourceNode=new MediaStreamAudioSourceNode(this._audioContext,{mediaStream:this._stream}),this._mediaStreamAudioSourceNode.connect(this._vadNode),d.log.debug("started micVAD"),this.listening=!0,this.initializationState="initialized";break;case"initializing":d.log.warn("start called while initializing");break;case"initialized":{if(this.listening)return;this.listening=!0,this.frameProcessor.resume();let{stream:t,audioContext:r,vadNode:o}=this.getAudioInstances();this._stream=await this.options.resumeStream(t);let a=new MediaStreamAudioSourceNode(r,{mediaStream:this._stream});this._mediaStreamAudioSourceNode=a,a.connect(o);break}case"destroyed":d.log.warn("start called after destroyed");break;case"errored":d.log.error("start called after errored");break;default:d.log.warn("weird initialization state")}},this.pause=async()=>{if(!this.listening)return;this.listening=!1;let{stream:t,mediaStreamAudioSourceNode:r}=this.getAudioInstances();await this.options.pauseStream(t),r.disconnect(),this.frameProcessor.pause(this.handleFrameProcessorEvent)},this.destroy=async()=>{d.log.debug("destroy called"),this.initializationState="destroyed";let{vadNode:t}=this.getAudioInstances();t instanceof AudioWorkletNode&&t.port.postMessage(p.Message.SpeechStop),this.listening&&await this.pause(),await this.model.release(),this.ownsAudioContext&&await this._audioContext?.close()},this.setOptions=t=>{this.frameProcessor.setOptions(t)},this.processFrame=async t=>{await this.frameProcessor.process(t,this.handleFrameProcessorEvent)},this.handleFrameProcessorEvent=t=>{switch(t.msg){case p.Message.FrameProcessed:this.options.onFrameProcessed(t.probs,t.frame);break;case p.Message.SpeechStart:this.options.onSpeechStart();break;case p.Message.SpeechRealStart:this.options.onSpeechRealStart();break;case p.Message.VADMisfire:this.options.onVADMisfire();break;case p.Message.SpeechEnd:this.options.onSpeechEnd(t.audio)}}}static async new(t={}){let o,a={...(0,r.getDefaultRealTimeVADOptions)(t.model??r.DEFAULT_MODEL),...t};(0,u.validateOptions)(a),r.ort.env.wasm.wasmPaths=a.onnxWASMBasePath,void 0!==a.ortConfig&&a.ortConfig(r.ort);let i="v5"===a.model?"silero_vad_v5.onnx":"silero_vad_legacy.onnx",s=a.baseAssetPath+i,n="v5"===a.model?c.SileroV5.new:c.SileroLegacy.new;try{o=await n(r.ort,()=>(0,l.defaultModelFetcher)(s))}catch(t){throw console.error(`Encountered an error while loading model file ${s}`),t}let d="v5"===a.model?512:1536,p=new u.FrameProcessor(o.process,o.reset_state,{positiveSpeechThreshold:a.positiveSpeechThreshold,negativeSpeechThreshold:a.negativeSpeechThreshold,redemptionMs:a.redemptionMs,preSpeechPadMs:a.preSpeechPadMs,minSpeechMs:a.minSpeechMs,submitUserSpeechOnPause:a.submitUserSpeechOnPause},d/16),f=new g(a,p,o,d);if(a.startOnLoad)try{await f.start()}catch(t){throw console.error("Error starting micVad",t),t}return f}}r.MicVAD=g},63603:(t,r)=>{var o;
1Object.defineProperty(r,"__esModule",{value:!0}),r.Message=void 0,function(t){t.AudioFrame="AUDIO_FRAME",t.SpeechStart="SPEECH_START",t.VADMisfire="VAD_MISFIRE",t.SpeechEnd="SPEECH_END",t.SpeechStop="SPEECH_STOP",t.SpeechRealStart="SPEECH_REAL_START",t.FrameProcessed="FRAME_PROCESSED"}(o||(r.Message=o={}))},65491:function(t,r,o){var a=this&&this.__createBinding||(Object.create?function(t,r,o,a){void 0===a&&(a=o);var i=Object.getOwnPropertyDescriptor(r,o);(!i||("get"in i?!r.__esModule:i.writable||i.configurable))&&(i={enumerable:!0,get:function(){return r[o]}}),Object.defineProperty(t,a,i)}:function(t,r,o,a){void 0===a&&(a=o),t[a]=r[o]}),i=this&&this.__setModuleDefault||(Object.create?function(t,r){Object.defineProperty(t,"default",{enumerable:!0,value:r})}:function(t,r){t.default=r}),s=this&&this.__importStar||function(t){if(t&&t.__esModule)return t;var r={};if(null!=t)for(var o in t)"default"!==o&&Object.prototype.hasOwnProperty.call(t,o)&&a(r,t,o);return i(r,t),r};Object.defineProperty(r,"__esModule",{value:!0}),r.NonRealTimeVAD=r.defaultNonRealTimeVADOptions=void 0;let n=s(o(25577)),l=o(37887),u=o(88562),d=o(74337),p=o(63603),c=o(93934),f=o(74902);r.defaultNonRealTimeVADOptions={...d.defaultFrameProcessorOptions,modelURL:l.baseAssetPath+"silero_vad_legacy.onnx",modelFetcher:u.defaultModelFetcher};class h{static async new(t={}){let o={...r.defaultNonRealTimeVADOptions,...t};(0,d.validateOptions)(o),void 0!==o.ortConfig&&o.ortConfig(n);let a=()=>o.modelFetcher(o.modelURL),i=await c.SileroLegacy.new(n,a),s=new d.FrameProcessor(i.process,i.reset_state,{positiveSpeechThreshold:o.positiveSpeechThreshold,negativeSpeechThreshold:o.negativeSpeechThreshold,redemptionMs:o.redemptionMs,preSpeechPadMs:o.preSpeechPadMs,minSpeechMs:o.minSpeechMs,submitUserSpeechOnPause:o.submitUserSpeechOnPause},96);return s.resume(),new this(a,n,o,s)}constructor(t,r,o,a){this.modelFetcher=t,this.ort=r,this.options=o,this.frameProcessor=a,this.frameSamples=1536}async *run(t,r){let o={nativeSampleRate:r,targetSampleRate:16e3,targetFrameSize:this.frameSamples},a=new f.Resampler(o),i=0,s=0,n=0;for await(let r of a.stream(t)){let t=[];for(let o of(await this.frameProcessor.process(r,r=>{t.push(r)}),t))switch(o.msg){case p.Message.SpeechStart:i=n*this.frameSamples/16;break;case p.Message.SpeechEnd:s=(n+1)*this.frameSamples/16,yield{audio:o.audio,start:i,end:s}}n++}let l=[];for(let t of(this.frameProcessor.endSegment(t=>{l.push(t)}),l))t.msg===p.Message.SpeechEnd&&(yield{audio:t.audio,start:i,end:n*this.frameSamples/16})}}r.NonRealTimeVAD=h},74337:(t,r,o)=>{Object.defineProperty(r,"__esModule",{value:!0}),r.FrameProcessor=r.validateOptions=r.defaultFrameProcessorOptions=void 0;let a=o(96252),i=o(63603);r.defaultFrameProcessorOptions={positiveSpeechThreshold:.3,negativeSpeechThreshold:.25,preSpeechPadMs:800,redemptionMs:1400,minSpeechMs:400,submitUserSpeechOnPause:!1},r.validateOptions=function(t){(t.positiveSpeechThreshold<0||t.positiveSpeechThreshold>1)&&a.log.error("positiveSpeechThreshold should be a number between 0 and 1"),(t.negativeSpeechThreshold<0||t.negativeSpeechThreshold>t.positiveSpeechThreshold)&&a.log.error("negativeSpeechThreshold should be between 0 and positiveSpeechThreshold"),t.preSpeechPadMs<0&&a.log.error("preSpeechPadMs should be positive"),t.redemptionMs<0&&a.log.error("redemptionMs should be positive"),t.minSpeechMs<0&&a.log.error("minSpeechMs should be positive")};let s=t=>{let r=t.reduce((t,r)=>(t.push(t.at(-1)+r.length),t),[0]),o=new Float32Array(r.at(-1));return t.forEach((t,a)=>{let i=r[a];o.set(t,i)}),o};function n(t,r){let o=Math.floor(t.redemptionMs/r);return{redemptionFrames:o,preSpeechPadFrames:Math.floor(t.preSpeechPadMs/r),minSpeechFrames:Math.floor(t.minSpeechMs/r)}}class l{constructor(t,r,o,a){this.modelProcessFunc=t,this.modelResetFunc=r,this.options=o,this.msPerFrame=a,this.speaking=!1,this.redemptionCounter=0,this.speechFrameCount=0,this.active=!1,this.speechRealStartFired=!1,this.setOptions=t=>{this.options={...this.options,...t};let{redemptionFrames:r,preSpeechPadFrames:o,minSpeechFrames:a}=n(this.options,this.msPerFrame);this.redemptionFrames=r,this.preSpeechPadFrames=o,this.minSpeechFrames=a},this.reset=()=>{this.speaking=!1,this.speechRealStartFired=!1,this.audioBuffer=[],this.modelResetFu
1nc(),this.redemptionCounter=0,this.speechFrameCount=0},this.pause=t=>{this.active=!1,this.options.submitUserSpeechOnPause?this.endSegment(t):this.reset()},this.resume=()=>{this.active=!0},this.endSegment=t=>{let r=this.audioBuffer;this.audioBuffer=[];let o=this.speaking;if(this.reset(),o)if(r.reduce((t,r)=>r.isSpeech?t+1:t,0)>=this.minSpeechFrames){let o=s(r.map(t=>t.frame));t({msg:i.Message.SpeechEnd,audio:o})}else t({msg:i.Message.VADMisfire});return{}},this.process=async(t,r)=>{if(!this.active)return;let o=await this.modelProcessFunc(t),a=o.isSpeech>=this.options.positiveSpeechThreshold;if(r({probs:o,msg:i.Message.FrameProcessed,frame:t}),this.audioBuffer.push({frame:t,isSpeech:a}),a&&(this.speechFrameCount++,this.redemptionCounter=0),a&&!this.speaking&&(this.speaking=!0,r({msg:i.Message.SpeechStart})),this.speaking&&this.speechFrameCount===this.minSpeechFrames&&!this.speechRealStartFired&&(this.speechRealStartFired=!0,r({msg:i.Message.SpeechRealStart})),o.isSpeech<this.options.negativeSpeechThreshold&&this.speaking&&++this.redemptionCounter>=this.redemptionFrames){this.redemptionCounter=0,this.speechFrameCount=0,this.speaking=!1,this.speechRealStartFired=!1;let t=this.audioBuffer;if(this.audioBuffer=[],t.reduce((t,r)=>r.isSpeech?t+1:t,0)>=this.minSpeechFrames){let o=s(t.map(t=>t.frame));r({msg:i.Message.SpeechEnd,audio:o})}else r({msg:i.Message.VADMisfire})}if(!this.speaking){for(;this.audioBuffer.length>this.preSpeechPadFrames;)this.audioBuffer.shift();this.speechFrameCount=0}},this.audioBuffer=[];let{redemptionFrames:l,preSpeechPadFrames:u,minSpeechFrames:d}=n(this.options,this.msPerFrame);this.redemptionFrames=l,this.preSpeechPadFrames=u,this.minSpeechFrames=d,this.reset()}}r.FrameProcessor=l},74902:(t,r,o)=>{Object.defineProperty(r,"__esModule",{value:!0}),r.Resampler=void 0;let a=o(96252);class i{constructor(t){this.options=t,this.process=t=>{let r=[];for(let o of t)for(this.inputBuffer.push(o);this.hasEnoughDataForFrame();){let t=this.generateOutputFrame();r.push(t)}return r},t.nativeSampleRate<16e3&&a.log.error("nativeSampleRate is too low. Should have 16000 = targetSampleRate <= nativeSampleRate"),this.inputBuffer=[]}async *stream(t){for(let r of t)for(this.inputBuffer.push(r);this.hasEnoughDataForFrame();){let t=this.generateOutputFrame();yield t}}hasEnoughDataForFrame(){return this.inputBuffer.length*this.options.targetSampleRate/this.options.nativeSampleRate>=this.options.targetFrameSize}generateOutputFrame(){let t=new Float32Array(this.options.targetFrameSize),r=0,o=0;for(;r<this.options.targetFrameSize;){let a=0,i=0;for(;o<Math.min(this.inputBuffer.length,(r+1)*this.options.nativeSampleRate/this.options.targetSampleRate);){let t=this.inputBuffer[o];void 0!==t&&(a+=t,i++),o++}t[r]=a/i,r++}return this.inputBuffer=this.inputBuffer.slice(o),t}}r.Resampler=i},79084:(t,r)=>{function o(t,r,o){for(let a=0;a<o.length;a++)t.setUint8(r+a,o.charCodeAt(a))}Object.defineProperty(r,"__esModule",{value:!0}),r.audioFileToArray=r.encodeWAV=r.arrayBufferToBase64=r.minFramesForTargetMS=void 0,r.minFramesForTargetMS=function(t,r,o=16e3){return Math.ceil(t*o/1e3/r)},r.arrayBufferToBase64=function(t){let r=new Uint8Array(t),o=r.byteLength,a=Array(o);for(let t=0;t<o;t++){let o=r[t];if(void 0===o)break;a[t]=String.fromCharCode(o)}return btoa(a.join(""))},r.encodeWAV=function(t,r=3,a=16e3,i=1,s=32){let n=s/8,l=i*n,u=new ArrayBuffer(44+t.length*n),d=new DataView(u);return o(d,0,"RIFF"),d.setUint32(4,36+t.length*n,!0),o(d,8,"WAVE"),o(d,12,"fmt "),d.setUint32(16,16,!0),d.setUint16(20,r,!0),d.setUint16(22,i,!0),d.setUint32(24,a,!0),d.setUint32(28,a*l,!0),d.setUint16(32,l,!0),d.setUint16(34,s,!0),o(d,36,"data"),d.setUint32(40,t.length*n,!0),1===r?function(t,r,o){for(let a=0;a<o.length;a++,r+=2){let i=Math.max(-1,Math.min(1,o[a]));t.setInt16(r,i<0?32768*i:32767*i,!0)}}(d,44,t):function(t,r,o){for(let a=0;a<o.length;a++,r+=4)t.setFloat32(r,o[a],!0)}(d,44,t),u},r.audioFileToArray=async function(t){let r=new OfflineAudioContext(1,1,44100),o=new FileReader,a=null;if(await new Promise(i=>{o.addEventListener("loadend",()=>{let t=o.result;r.decodeAudioData(t,t=>{a=t,r.startRendering().then(()=>{console.log("Rendering completed successfully"),i()}).catch(t=>{console.error("Rendering failed: ",t)})},t=>{console.log("Error with decoding audio data: ",t)})}),o.readAsArrayBuffer(t)}),null===a)throw Error("some shit");let i=a,s=new Float32Array(i.length);for(let t=0;t<i.length;t++)for(let r=0;r<i.numberOfChannels;r++){let o=i.getChannelData(r)[t],a=s[t];if(void 0===o||void 0===a)throw Error("sample or out[i] is undefined");s[t]=a+o}return{audio:s,sampleRate:i.sampleRate}}},84011:(t,r)=>
1{Object.defineProperty(r,"__esModule",{value:!0})},86345:(t,r,o)=>{Object.defineProperty(r,"__esModule",{value:!0}),r.getDefaultRealTimeVADOptions=r.MicVAD=r.DEFAULT_MODEL=r.utils=r.NonRealTimeVAD=r.Message=r.FrameProcessor=r.defaultModelFetcher=r.baseAssetPath=void 0;var a=o(37887);Object.defineProperty(r,"baseAssetPath",{enumerable:!0,get:function(){return a.baseAssetPath}});var i=o(88562);Object.defineProperty(r,"defaultModelFetcher",{enumerable:!0,get:function(){return i.defaultModelFetcher}});var s=o(74337);Object.defineProperty(r,"FrameProcessor",{enumerable:!0,get:function(){return s.FrameProcessor}});var n=o(63603);Object.defineProperty(r,"Message",{enumerable:!0,get:function(){return n.Message}});var l=o(65491);Object.defineProperty(r,"NonRealTimeVAD",{enumerable:!0,get:function(){return l.NonRealTimeVAD}});let u=o(79084);r.utils={audioFileToArray:u.audioFileToArray,minFramesForTargetMS:u.minFramesForTargetMS,arrayBufferToBase64:u.arrayBufferToBase64,encodeWAV:u.encodeWAV};var d=o(50489);Object.defineProperty(r,"DEFAULT_MODEL",{enumerable:!0,get:function(){return d.DEFAULT_MODEL}}),Object.defineProperty(r,"MicVAD",{enumerable:!0,get:function(){return d.MicVAD}}),Object.defineProperty(r,"getDefaultRealTimeVADOptions",{enumerable:!0,get:function(){return d.getDefaultRealTimeVADOptions}})},87535:(t,r,o)=>{Object.defineProperty(r,"__esModule",{value:!0}),r.SileroV5=void 0;let a=o(96252);function i(t){let r=Array(256).fill(0);return new t.Tensor("float32",r,[2,1,128])}class s{constructor(t,r,o,a){this._session=t,this._state=r,this._sr=o,this.ortInstance=a,this.reset_state=()=>{this._state=i(this.ortInstance)},this.process=async t=>{let r={input:new this.ortInstance.Tensor("float32",t,[1,t.length]),state:this._state,sr:this._sr},o=await this._session.run(r);if(!o.stateN)throw Error("No state from model");if(this._state=o.stateN,!o.output?.data)throw Error("No output from model");let a=o.output.data[0];if("number"!=typeof a)throw Error("Weird output data");return{notSpeech:1-a,isSpeech:a}},this.release=async()=>{await this._session.release(),this._state.dispose(),this._sr.dispose()}}}r.SileroV5=s,s.new=async(t,r)=>{a.log.debug("Loading VAD...");let o=await r(),n=await t.InferenceSession.create(o),l=new t.Tensor("int64",[16000n]),u=i(t);return a.log.debug("...finished loading VAD"),new s(n,u,l,t)}},88562:(t,r)=>{Object.defineProperty(r,"__esModule",{value:!0}),r.defaultModelFetcher=void 0,r.defaultModelFetcher=t=>fetch(t).then(t=>t.arrayBuffer())},93934:function(t,r,o){var a=this&&this.__createBinding||(Object.create?function(t,r,o,a){void 0===a&&(a=o);var i=Object.getOwnPropertyDescriptor(r,o);(!i||("get"in i?!r.__esModule:i.writable||i.configurable))&&(i={enumerable:!0,get:function(){return r[o]}}),Object.defineProperty(t,a,i)}:function(t,r,o,a){void 0===a&&(a=o),t[a]=r[o]}),i=this&&this.__exportStar||function(t,r){for(var o in t)"default"===o||Object.prototype.hasOwnProperty.call(r,o)||a(r,t,o)};Object.defineProperty(r,"__esModule",{value:!0}),r.SileroV5=r.SileroLegacy=void 0,i(o(84011),r);var s=o(46417);Object.defineProperty(r,"SileroLegacy",{enumerable:!0,get:function(){return s.SileroLegacy}});var n=o(87535);Object.defineProperty(r,"SileroV5",{enumerable:!0,get:function(){return n.SileroV5}})},96252:(t,r)=>{Object.defineProperty(r,"__esModule",{value:!0}),r.log=void 0;let o=t=>r=>{console.log(`VAD | ${t} >`,r)};r.log={error:o("error"),debug:o("debug"),warn:o("warn")}}}]);
Line numbers count LF bytes from the start of the resource, as the search results do. Vendor segments are library code the classifier recognised; they are stored but not indexed. Bytes are shown as Latin1 characters, one per byte.