hornetseye-alsa
Author: Jan Wedekind Copyright: 2012 License: GPL
Synopsis
This Ruby extension provides an interface for playing and recording audio data using the Advanced Linux Sound Architecture (ALSA).
Installation
hornetseye-alsa requires the ALSA library. If you are running Debian or (K)ubuntu, you can install it like this:
$ sudo aptitude install libasound2-dev
To install this Ruby extension, use the following command:
$ sudo gem install hornetseye-alsa
Alternatively you can build and install the Ruby extension from source as follows:
$ rake
$ sudo rake install
Usage
Simply run Interactive Ruby:
$ irb
You can load and use ALSA as shown below. This example will open microphone and speakers and then write the input of the microphone to the speakers.
require 'rubygems'
require 'hornetseye_alsa'
include Hornetseye
microphone = AlsaInput.new 'default:0' # or 'default:1' for USB microphone
speaker = AlsaOutput.new 'default:0', microphone.rate, microphone.channels
while true
frame = microphone.read 1024
speaker.write frame
end