require "linux/SoundDSP"
require "audiofile"

dsp = File.new("/dev/dsp", "w").extend(Linux::SoundDSP)

ARGV.each do |filename|
    wav = AudioFile.new filename
    dsp.bits, dsp.rate, dsp.channels = [wav.bits, wav.rate, wav.channels]

    bytes = dsp.write(wav.read 10000) until bytes == 0

    wav.close
end

dsp.close