--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/audio.rst	Fri Jan 06 22:04:44 2012 +0200
@@ -0,0 +1,78 @@
+.. -*- coding: utf-8; -*-
+
+========
+ Audio.
+========
+.. contents::
+
+Sound in Debian.
+================
+
+ * http://wiki.debian.org/ALSA
+ * http://wiki.debian.org/SoundFAQ
+
+Suitable convertors?
+====================
+::
+
+  $ sudo apt-get install ffmpeg
+
+or::
+
+  $ sudo apt-get install sox
+
+List of sox supported format.
+=============================
+
+See sox(1).
+
+List of ffmpeg supported format.
+================================
+::
+
+  $ ffmpeg -formats
+
+How convert amr to ogg/mp3?
+===========================
+
+TODO
+
+How easy convert between mp3/wav/ogg?
+=====================================
+::
+
+  $ sox in.mp3 out.ogg
+  $ sox in.ogg out.wav
+  ... etc
+
+How convert flac to mp3?
+========================
+::
+
+  $ flac -c -d $file.flac | lame -m j -q 0 -V 0 -s 44.1 - $file.mp3
+
+How convert wma to mp3?
+=======================
+::
+
+  $ mplayer -vo null -vc dummy -af resample=44100 -ao pcm:waveheader $file.wma
+  $ lame -m s audiodump.wav -o "$file.mp3
+  $ rm audiodump.wav
+
+How convert m4a to mp3?
+=======================
+::
+
+  $ faad -o - $file.m4a | lame -V 0 - $file.mp3
+
+How split mp3/ogg files?
+========================
+
+Split mp3 and ogg files::
+
+  $ mp3splt
+
+See::
+
+  http://mp3splt.sourceforge.net/mp3splt_page/home.php
+                home page