[alsa-devel] frequency analysis with alsa and fftw

Jan-Benedict Glaw jbglaw at lug-owl.de
Sun Dec 27 13:53:43 CET 2009

On Sun, 2009-12-27 13:26:31 +0100, Markus Vogl <markus.vogl at gmx.net> wrote:
> my project is to analyse the mic input frequency from my asus eepc
> 1008ha with ubuntu 9.10  and show it in a terminal window. i would
> use my acoustic 6 string guitar to play in front of my netbook.
> i´ve testet the howto from linuxjornal.com ..
> http://www.linuxjournal.com/article/6735
> ...but i´ve no plan to use the mic input and  then analyse it with fftw.

Why do you need to do ALSA programming in the first place? Isn't it
enough to use any given ALSA-capable audio recorder (eg. arecord) to
record some sound, convert it to raw PCM data (eg. cut off the WAV
header) and then shift all the data into the FFT lib?


      Jan-Benedict Glaw      jbglaw at lug-owl.de              +49-172-7608481
 Signature of:                            If it doesn't work, force it.
 the second  :                   If it breaks, it needed replacing anyway.
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