Re: [Pymedia-users] pitch detection

[Dmitry B. <jb...@ma...>]

Hi,
It could work for you.
Basically SpectrAnalyzer is taking the fixed number of samples >512 and 
returns the frequencies strength. If you use much more samples it may not 
work well for you though.
Sorry I never did pitch detection myself, so I cannot tell if it'll work for 
you.
Dmitry/

----- Original Message ----- 
From: "Robert Helmer" <ro...@ro...>
To: <pym...@li...>
Sent: Tuesday, January 03, 2006 12:25 PM
Subject: [Pymedia-users] pitch detection


> Hello,
>
> I am working on a voice-training python application that involves pitch 
> detection. I have had some good results using FFT but it's a bit too slow 
> (I can't get good detection without a very large sample size it seems).
>
> Could SpectrAnalyzer be useful for pitch detection? I am a bit confused as 
> to how to use this class properly; the example (sound_viz.py) doesn't work 
> in the latest release due to what looks like API changes. I think being 
> able to experiment with a working implementation would help me to be able 
> to play around with FFT and other algorithms (Schmitt-triggering for 
> instance).
>
> I took a peek at the implementation of SpectrAnalyzer in C and I am not 
> sure how much overlap there is between what I am trying to do and 
> SpectrAnalyzer; it seems quite capable but my inexperience in digital 
> audio processing is holding back my understanding.
>
> I've been learning just how little I know about DSP by embarking on this, 
> so any suggestions would be greatly appreciated!
>
>
> Thanks,
> Rob Helmer
>
>
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