[linux-audio-user] Analysis software?
pw_lists at slinkp.com
Thu Sep 9 17:51:32 EDT 2004
I'm looking for something that can take soundfiles
and display various analyses of them. Any recommendations?
Something very much like what you can get with Spectralab, for example
... but free software and working on linux :-]
Basically the main thing I need is a good display of
log frequency vs. dB amplitude, averaged over the whole file,
useful for e.g. getting a frequency response from a swept sine wave
or white noise.
Other analyses that would be handy at various times:
signal to noise ratio and total harmonic distortion
given a known input.
Also really nice would be a clearly labelled sonogram
showing log frequency against time.
So far I've been using snd, which has a decent sonogram but kinda falls
down on readability: e.g. it doesn't display the actual frequencies of
the scale if you select log frequency, it's just 0 to 1.0 so I have
to guess, or click on a part of the graph to find out about that
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