Added Support for Multiple Languages
This commit is contained in:
Paoda
parent
9f6adb3a29
commit
36411bb2c5
143
src/index.js
143
src/index.js
|
|
@ -1,84 +1,83 @@
|
|||
import io from 'socket.io-client';
|
||||
|
||||
/**
|
||||
* The Class Responsible for Talking with Polyglot-Node
|
||||
* @param {string} url - URL of NodeJS Server.
|
||||
*/
|
||||
class WebSocket {
|
||||
constructor(url) {
|
||||
this.io = io(url);
|
||||
|
||||
this.listen(() => {
|
||||
this.grabAudio();
|
||||
});
|
||||
}
|
||||
import io from 'socket.io-client';
|
||||
|
||||
/**
|
||||
* Create socket.io event listeners.
|
||||
* @param {Function} cb - Called once connected to server.
|
||||
*/
|
||||
listen(cb) {
|
||||
this.io.on('disconnect', (err) => {
|
||||
console.error("Disconnected from Server.");
|
||||
})
|
||||
* The Class Responsible for Talking with Polyglot-Node
|
||||
* @param {string} url - URL of NodeJS Server.
|
||||
*/
|
||||
class WebSocket {
|
||||
constructor(url) {
|
||||
this.io = io(url);
|
||||
|
||||
this.io.on('connect', (data) => {
|
||||
this.io.emit("join", "Hi There NodeJS!");
|
||||
console.log("Connected to NodeJS Server");
|
||||
cb();
|
||||
});
|
||||
}
|
||||
/**
|
||||
* This Class Grabs the Audio from the User.
|
||||
* Line 26 needs to be replaced with the global variable for localstream found in Rails TODO: Put line
|
||||
*
|
||||
* DEPRECAION WARNING. This method makes vital use of createScriptProcessor which will be scrapped at some point
|
||||
* in the future. TODO: Switch from createScriptProcessor to AudioWorklet (No documentation as of 2018-08-30)
|
||||
* @deprecated
|
||||
* @async
|
||||
*/
|
||||
async grabAudio() {
|
||||
this.io.emit('startRecognition', "en-US");
|
||||
|
||||
AudioContext = window.AudioContext || window.webkitAudioContext;
|
||||
const ctx = new AudioContext();
|
||||
const processor = ctx.createScriptProcessor(2048, 1, 1);
|
||||
processor.connect(ctx.destination);
|
||||
processor.onaudioprocess = e => this.handleBuffer(e);
|
||||
|
||||
const stream = await navigator.mediaDevices.getUserMedia({ audio: true, video: false });
|
||||
ctx.createMediaStreamSource(stream).connect(processor);
|
||||
ctx.resume();
|
||||
}
|
||||
|
||||
/**
|
||||
* Takes the Float32Array Array from the ScriptProcessor Event
|
||||
* and converts it to Int16 for Google Speech to Text use.
|
||||
* @param {AudioProcessingEvent} e Chunk of Audio w/ Audio F32Array
|
||||
*/
|
||||
handleBuffer(e) {
|
||||
let l = e.inputBuffer.getChannelData(0);
|
||||
this.io.emit('binary', convertF32ToI16(l));
|
||||
this.listen(() => {
|
||||
this.grabAudio();
|
||||
});
|
||||
}
|
||||
|
||||
/**
|
||||
* 32Khz to 16Khz Audio
|
||||
* Converts Float32 Buffer to Int16Buffer
|
||||
* @param {Float32Array} buffer - Float32 Buffer;
|
||||
* @returns {ArrayBuffer}
|
||||
* Create socket.io event listeners.
|
||||
* @param {Function} cb - Called once connected to server.
|
||||
*/
|
||||
function convertF32ToI16(buffer) {
|
||||
let l = buffer.length;
|
||||
listen(cb) {
|
||||
this.io.on('disconnect', (err) => {
|
||||
console.error("Disconnected from Server.");
|
||||
})
|
||||
|
||||
this.io.on('connect', (data) => {
|
||||
console.log("Connected to NodeJS Server");
|
||||
cb();
|
||||
});
|
||||
}
|
||||
/**
|
||||
* This Class Grabs the Audio from the User.
|
||||
* Line 48 needs to be replaced with the global variable for localstream found in Rails TODO: Put line
|
||||
*
|
||||
* DEPRECAION WARNING. This method makes vital use of createScriptProcessor which will be scrapped at some point
|
||||
* in the future. TODO: Switch from createScriptProcessor to AudioWorklet (No documentation as of 2018-08-30)
|
||||
* @deprecated
|
||||
* @async
|
||||
*/
|
||||
async grabAudio() {
|
||||
this.io.emit('startRecognition', "en-US", "fr");
|
||||
|
||||
AudioContext = window.AudioContext || window.webkitAudioContext;
|
||||
const ctx = new AudioContext();
|
||||
const processor = ctx.createScriptProcessor(2048, 1, 1);
|
||||
processor.connect(ctx.destination);
|
||||
processor.onaudioprocess = e => this.handleBuffer(e);
|
||||
|
||||
const stream = await navigator.mediaDevices.getUserMedia({ audio: true, video: false });
|
||||
ctx.createMediaStreamSource(stream).connect(processor);
|
||||
ctx.resume();
|
||||
}
|
||||
|
||||
let buf = new Int16Array(l/3);
|
||||
|
||||
while (l--) {
|
||||
if (l % 3 == 0) {
|
||||
buf[l / 3] = buffer[l] * 0xFFFF;
|
||||
/**
|
||||
* Takes the Float32Array Array from the ScriptProcessor Event
|
||||
* and converts it to Int16 for Google Speech to Text use.
|
||||
* @param {AudioProcessingEvent} e Chunk of Audio w/ Audio F32Array
|
||||
*/
|
||||
handleBuffer(e) {
|
||||
let l = e.inputBuffer.getChannelData(0);
|
||||
this.io.emit('binary', convertF32ToI16(l));
|
||||
|
||||
/**
|
||||
* 32Khz to 16Khz Audio
|
||||
* Converts Float32 Buffer to Int16Buffer
|
||||
* @param {Float32Array} buffer - Float32 Buffer;
|
||||
* @returns {ArrayBuffer}
|
||||
*/
|
||||
function convertF32ToI16(buffer) {
|
||||
let l = buffer.length;
|
||||
|
||||
let buf = new Int16Array(l / 3);
|
||||
|
||||
while (l--) {
|
||||
if (l % 3 == 0) {
|
||||
buf[l / 3] = buffer[l] * 0xFFFF;
|
||||
}
|
||||
}
|
||||
return buf.buffer;
|
||||
}
|
||||
return buf.buffer;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
const ws = new WebSocket("http://localhost:1337");
|
||||
const ws = new WebSocket("http://localhost:1337");
|
||||
Reference in New Issue