From: Schumacher Marlon <marlon.schumacher@music.mcgill.ca>
To: sox-devel@lists.sourceforge.net
Subject: question about noiseprof
Date: Thu, 5 Jun 2014 16:09:26 -0400 [thread overview]
Message-ID: <C173B6ED-A3EC-42B9-9597-A3592F704A02@music.mcgill.ca> (raw)
Hello,
I would just like to ask if someone could shed some light on what the [noiseprof] effect is actually doing.
Is it outputting a 1024 point time-averaged-spectrum? Does it apply windowing/ola when analyzing the audio?
It seems to be a power spectrum but what are the actual values that are actually written into the noiseprofile file? Magnitude in dB? (they seem to be somewhat centered around '0')
I tried looking at the source (noiseprof.c) but I'm not enough into C to really understand the code.
Any help/hints would be greatly appreciated.
Thanks very much.
Marlon
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reply other threads:[~2014-06-05 20:09 UTC|newest]
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