audio

record.js

const portAudio = require('naudiodon');
const fs = require('fs');
const wav = require('wav');
const request = require('request');


const ai = new portAudio.AudioInput({
  channelCount: 1,
  sampleFormat: portAudio.SampleFormat16Bit,
  sampleRate: 8000,
  deviceId: -1
});

// const ws = new fileWriter('test.wav', {
//   sampleRate: 8000,
//   channels: 1
// });
const Writable = require('stream').Writable;
const ws = Writable();
const bufs = [];
ws._write = function (data, enc, next) {
  bufs.push(data);
  process.nextTick(next);
}

ws.on('finish', () => {
   const buf = Buffer.concat(bufs);
   fs.writeFileSync('audio.raw', buf);
   console.log(buf);
   console.log(buf.length);
})

ai.pipe(ws);
ai.start();
ai.on('error', err => console.error);
process.on('SIGINT', () => {
  console.log('Received SIGINT. Stopping recording.');
  ai.quit();
  ws.end();
});