aplay wrapper for Node.js
npm install typed-aplay-test 
> ALSA aplay wrapper for Node.js. It provides basic audio capabilities.
aplay works on:
1. any Debian/Ubuntu system providing ALSA support has been installed.
2. MAC OSX (comes with afplay by default)
ALSA stands for Advanced Linux Sound Architecture. It is a suite of hardware drivers, libraries and utilities which provide audio and MIDI functionality for the Linux operating system.
aplay is a simple native ALSA wav player (to reproduce .mp3 see mpg321).
Get ready.
Before we start the real work, please update the system.
sudo apt-get update
sudo apt-get upgrade
If you are running on Raspberry Pi, please update Raspbian
sudo rpi-update
Install ALSA for audio playback
sudo apt-get install alsa-base alsa-utils
If you are planning on using a USB audio on Raspberry Pi you will need to set your USB audio device as the default device.
Edit /etc/modprobe.d/alsa-base.conf and replaced the line:
options snd-usb-audio index=-2
With the following lines:
options snd-usb-audio index=0 nrpacks=1
options snd-bcm2835 index=-2
After a reboot of your Raspberry Pi
aplay -l
Should output the following:
* List of PLAYBACK Hardware Devices *
card 0: XXXX [XXXX], device 0: USB Audio [USB Audio]
Subdevices: 1/1
Subdevice #0: subdevice #0
Your device volume will be set to 0 by default. Use the ALSA mixer to adjust the volume using your arrow keys:
alsamixer
Get it through npm:
$ npm install aplay --save
and then:
``javascript
var Sound = require('aplay');
// fire and forget:
new Sound().play('/path/to/the/file/filename.wav');
// with ability to pause/resume:
var music = new Sound();
music.play('/path/to/the/file/filename.wav');
setTimeout(function () {
music.pause(); // pause the music after five seconds
}, 5000);
setTimeout(function () {
music.resume(); // and resume it two seconds after pausing
}, 7000);
// you can also listen for various callbacks:
music.on('complete', function () {
console.log('Done with playback!');
});
`
The constructor accepts a config object where you can provide:
- channel`: specify a channel.
$ node node_modules/aplay my-song.wav
It's simple as that.