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import React, { useState, useEffect, useRef } from 'react';
import MicIcon from '@mui/icons-material/Mic';
import StopIcon from '@mui/icons-material/Stop';
import styles from './page.module.css';
import useSpeechRecognition from './hooks/useSpeechRecognition';
import useAudioManager from './hooks/useAudioManager';
import { useMicVAD } from "@ricky0123/vad-react";
import * as ort from "onnxruntime-web";
ort.env.wasm.wasmPaths = "/_next/static/chunks/";
const getMimeType = (): string | null => {
const types = ["audio/webm", "audio/mp4", "audio/ogg", "audio/wav", "audio/aac"];
for (let type of types) {
if (MediaRecorder.isTypeSupported(type)) {
return type;
}
}
return null;
};
interface VoiceInputFormProps {
handleSubmit: any;
input: string;
setInput: React.Dispatch<React.SetStateAction<string>>;
}
const VoiceInputForm: React.FC<VoiceInputFormProps> = ({ handleSubmit, input, setInput }) => {
const [isRecording, setIsRecording] = useState(false);
const { startListening, stopListening, recognizedText } = useSpeechRecognition();
const { setAudioFromRecording } = useAudioManager();
const mediaRecorderRef = useRef<MediaRecorder | null>(null);
const audioChunksRef = useRef<BlobPart[]>([]);
const cleanupRecording = () => {
if (mediaRecorderRef.current) {
mediaRecorderRef.current.stream.getTracks().forEach(track => track.stop());
mediaRecorderRef.current = null;
}
audioChunksRef.current = [];
};
useEffect(() => {
if (recognizedText) {
setInput(recognizedText);
}
}, [recognizedText, setInput]);
const startRecording = async () => {
cleanupRecording(); // Clean up any existing recording resources
try {
const mimeType = getMimeType();
const stream = await navigator.mediaDevices.getUserMedia({ audio: true });
mediaRecorderRef.current = new MediaRecorder(stream, { mimeType: mimeType ?? undefined });
mediaRecorderRef.current.ondataavailable = (event: BlobEvent) => {
audioChunksRef.current.push(event.data);
};
mediaRecorderRef.current.start();
} catch (err) {
console.error("Error accessing media devices:", err);
}
};
const stopRecording = async (): Promise<Blob> => {
return new Promise((resolve, reject) => {
const recorder = mediaRecorderRef.current;
if (recorder && recorder.state === "recording") {
recorder.onstop = () => {
const audioBlob = new Blob(audioChunksRef.current, { 'type': recorder.mimeType });
audioChunksRef.current = [];
resolve(audioBlob);
};
recorder.stop();
} else {
reject(new Error("MediaRecorder is not recording"));
}
});
};
const vad = useMicVAD({
modelURL: "/_next/static/chunks/silero_vad.onnx",
workletURL: "/_next/static/chunks/vad.worklet.bundle.min.js",
startOnLoad: false,
onSpeechEnd: async (audio) => {
console.log('hello??')
if (isRecording) {
stopListening();
const recordedBlob = await stopRecording();
setAudioFromRecording(recordedBlob);
const audioBuffer = await convertBlobToAudioBuffer(recordedBlob);
startListening(audioBuffer);
setIsRecording(!isRecording);
}
},
});
const handleRecording = async () => {
if (isRecording) {
stopListening();
const recordedBlob = await stopRecording();
if (recordedBlob) {
setAudioFromRecording(recordedBlob);
const audioBuffer = await convertBlobToAudioBuffer(recordedBlob);
startListening(audioBuffer);
}
cleanupRecording(); // Clean up resources after stopping recording
} else {
vad.toggle();
await startRecording();
}
setIsRecording(!isRecording);
};
return (
<div>
<form onSubmit={handleSubmit} className={styles.form}>
<input
type="text"
value={input}
className={styles.input}
onChange={(e) => setInput(e.target.value)}
placeholder="Speak or type..."
/>
</form>
<button onClick={handleRecording} className={styles.button}>
{isRecording ? <StopIcon /> : <MicIcon />}
</button>
</div>
);
};
const convertBlobToAudioBuffer = async (blob: Blob): Promise<AudioBuffer> => {
const audioContext = new AudioContext();
const arrayBuffer = await blob.arrayBuffer();
return await audioContext.decodeAudioData(arrayBuffer);
};
export default VoiceInputForm;
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