From: Ralf Mueller <ralf.mueller@...>
Date: 2009-09-17T16:26:15+09:00
Subject: Re: Audio file de-/encoding  question

Axel Etzold wrote:
> Dear all,
>
> I need to convert some *wav files to their spectrum to be able to change some of the frequencies and loudnesses in them and to re-encode these afterwards as *wav files.
>
> Can you recommend any Ruby libraries that can do this (easily) ?
>
> Thank you very much!
>
> Best regards,
>
> Axel 
>
>   
Hi Axel,

never tried it, but ruby/audio (http://hans.fugal.net/src/ruby-audio/) 
may provide the functionality you need. the narray  library is  part of 
it, which has FFT-processing as a feature.

hth
Ralf