On Wed, 2011-06-22 at 11:58 +0000,
linux-audio-user-request(a)lists.linuxaudio.org wrote:
  Message: 28
 Date: Wed, 22 Jun 2011 13:04:39 +0200 (CEST)
 From: Julien Claassen <julien(a)c-lab.de>
 Subject: Re: [LAU] Text-based sound visualisation?
 To: Fons Adriaensen <fons(a)linuxaudio.org>
 Cc: linux-audio-user(a)lists.linuxaudio.org
 Message-ID: <alpine.DEB.2.00.1106221301350.23405(a)britney.spears.net>
 Content-Type: TEXT/PLAIN; format=flowed; charset=US-ASCII
 Hello Fons!
    It's good to hear, that people are more often fooled by spectral
 analysers
 than their own ears. I suppose I'll just continue the way I have and
 if I'm
 just curious I will use songanalysis and have some fun. :-)
    Thanks for clarifying and putting me at ease. I hope Massy is more
 at ease
 as well. You so often hear about graphic displays of waveforms,
 analysis with
 graphs and what not and think, that it's one of the important tools to
 get
 professional mixes, especially if you think about "radio
 compatibility" and
 "pop standards".
    Warm regards
              Julien 
You might be able to see low band frequencies inaudible by your
speakers, that could stress other speakers. A little bit far-fetched,
but I could imagine that someone might use it for this or similar
issues. I don't know anybody using spectral analysis for the mastering.