Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

nodejs fix: mic example not working #1203 #1303

Open
wants to merge 1 commit into
base: master
Choose a base branch
from
Open

nodejs fix: mic example not working #1203 #1303

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
87 changes: 51 additions & 36 deletions nodejs/demo/test_microphone.js
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -1,46 +1,61 @@
var vosk = require('..')

const fs = require("fs");
var mic = require("mic");

MODEL_PATH = "model"
SAMPLE_RATE = 16000
const vosk = require('..');
const fs = require('fs');
const { spawn } = require('child_process');
const { platform } = require('os');

const MODEL_PATH = 'model';
const SAMPLE_RATE = 16000;
const soxInputPlatformDic = {
win32: 'waveaudio',
linux: 'pulseaudio',
darwin: 'coreaudio',
};

if (!fs.existsSync(MODEL_PATH)) {
console.log("Please download the model from https://alphacephei.com/vosk/models and unpack as " + MODEL_PATH + " in the current folder.")
process.exit()
console.log(
'Please download the model from https://alphacephei.com/vosk/models and unpack as ' +
MODEL_PATH +
' in the current folder.',
);
process.exit();
}

vosk.setLogLevel(0);
vosk.setLogLevel(1);
const model = new vosk.Model(MODEL_PATH);
const rec = new vosk.Recognizer({model: model, sampleRate: SAMPLE_RATE});

var micInstance = mic({
rate: String(SAMPLE_RATE),
channels: '1',
debug: false,
device: 'default',
const rec = new vosk.Recognizer({ model: model, sampleRate: SAMPLE_RATE });

// Install Sox before using this example: https://sourceforge.net/projects/sox/files/sox/
const soxProcess = spawn(`sox`, [
'-b',
'16',
'--endian',
'little',
'-c',
'1',
'-r',
'16k',
'-e',
'signed-integer',
'-t',
soxInputPlatformDic[platform],
'default',
'-t',
'wav',
'-',
]);

// Pass audio (data) into the Vosk API
soxProcess.stdout.on('data', data => {
if (rec.acceptWaveform(data)) console.log(rec.result());
else console.log(rec.partialResult());
});

var micInputStream = micInstance.getAudioStream();

micInputStream.on('data', data => {
if (rec.acceptWaveform(data))
console.log(rec.result());
else
console.log(rec.partialResult());
// Handle errors of Sox instance
soxProcess.on('error', error => {
console.log('Error executing Sox: ', error.message);
});

micInputStream.on('audioProcessExitComplete', function() {
console.log("Cleaning up");
console.log(rec.finalResult());
rec.free();
model.free();
process.on('SIGINT', function () {
console.log('\nStopping');
soxProcess.kill('SIGTERM');
});

process.on('SIGINT', function() {
console.log("\nStopping");
micInstance.stop();
});

micInstance.start();