[ Home | About | Licence | About author | Contact ]
Written by Oleksandr Gavenko (AKA gavenkoa), compiled at 2015-10-05
from rev 764bb173578d
.
Audio.¶
Contents
Test speaker and microphone.¶
To configure audio devices:
$ alsamixer
$ pavucontrol
To hier voice from mic in speaker:
$ arecord | aplay
$ arecord -f cd | aplay -f cd
To list of available devices:
$ aplay -l
$ aplay -L
$ arecord -l
$ arecord -L
$ pactl list
Play simple sounds.¶
$ sudo apt-get install sox
$ play -n synth sin 440 vol -40dB
$ play -n synth 10 square 100-10000 synth sin fmod 100 vol -40dB
Check HDA params.¶
$ sudo apt-get install alsa-tools-gui
$ hdajackretask
See also:
- http://www.alsa-project.org/main/index.php/HDA_Analyzer
- provides a graphical interface to access the raw HD-audio control
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 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