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Subject: RE: Sound quality with Rockbox
From: Jeff Waltzer (
Date: 2002-12-09

   Be very careful about volume levels. In A/B tests the louder one
almost always sounds 'better'...

--- Andreas Stemmer <> wrote:
> I was thinking about a computer based sound comparison between archos fw
> and rockbox, too. My idea was to create test files, play them on archos
> fw and rockbox (trying different settings) and compare the digital and
> analog output with a computer analysis program. It would be even
> possible to play this test file on the computer and record it with
> archos fw / rockbox.
> What do you think are the best tests for this? Will a silent passage to
> test the background noise and a sine sweep from 0 to 20kHz for frequency
> response be enough? I think white noise won't work because of the MP3
> compression or am I wrong?
> Perhaps I'll find some time after christmas to do some tests....
> Andreas


In theory there is no difference between theory and practice. In practice there is.
    - Yogi Berra

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Page was last modified "Jan 10 2012" The Rockbox Crew