#!/usr/bin/ruby -Ku
require 'rbsh/commands/find'

$dir = "/home/babusha/Загрузки/Nautilus Pompilius/Первые издания"
Dir.chdir $dir
find(%w[-type f]).each do |m4a|
    next if not m4a =~ /.m4a/
    wav = m4a.gsub(/.m4a/,'.wav')
    puts "Converting #{m4a} => #{wav}"
    system "mplayer -ao pcm:file='#{wav}' '#{m4a}'"
end