Audio en Linux

de wv +cue a wav

 shnsplit -f in.cue in.wv

el programa está en el paquete shntool y necesitas en paquete wavpack, que son los codecs

de wav a mp3

En la terminal se puede usar el programa lame

Otro uso de lame puede ser comprimir mp3:

$  lame -b 32 1.mp3 1c.mp3

Comandos varios

$ aplay -c 2 -f S16_LE -r 44100 /dev/urandom

Scripts

#!/bin/bash
# music.sh

# Music without external files

# Author: Antonio Macchi
# Used in ABS Guide with permission.


#  /dev/dsp default = 8000 frames per second, 8 bits per frame (1 byte),
#+ 1 channel (mono)

duration=2000       # If 8000 bytes = 1 second, then 2000 = 1/4 second.
volume=$'\xc0'      # Max volume = \xff (or \x00).
mute=$'\x80'        # No volume = \x80 (the middle).

function mknote ()  # $1=Note Hz in bytes (e.g. A = 440Hz ::
{                   #+ 8000 fps / 440 = 16 :: A = 16 bytes per second)
  for t in `seq 0 $duration`
  do
    test $(( $t % $1 )) = 0 && echo -n $volume || echo -n $mute
  done
}

e=`mknote 49`
g=`mknote 41`
a=`mknote 36`
b=`mknote 32`
c=`mknote 30`
cis=`mknote 29`
d=`mknote 27`
e2=`mknote 24`
n=`mknote 32767`
# European notation.

echo -n "$g$e2$d$c$d$c$a$g$n$g$e$n$g$e2$d$c$c$b$c$cis$n$cis$d \
$n$g$e2$d$c$d$c$a$g$n$g$e$n$g$a$d$c$b$a$b$c" | aplay
# dsp = Digital Signal Processor

exit      # A "bonny" example of an elegant shell script!

Fuente: [1]

Enlaces

http://music.stackexchange.com/questions/3103/software-for-microtonal-midi

http://offtonic.com/synth/

https://news.ycombinator.com/item?id=8750127

http://www.microsiervos.com/archivo/mundoreal/20-a-20000-hz.html

https://github.com/kylophone/spectro-photo

http://www.caseyrule.com/projects/sounds-of-sorting/

http://blog.robertelder.org/bash-one-liner-compose-music/

Configuración del sistema

http://askubuntu.com/questions/19906/beep-in-shell-script-not-working

http://opensourceforu.com/2016/11/create-music-free-software/

https://ardour.org/

http://opensourceforu.com/2016/11/create-music-free-software/