11 Jul
2004
11 Jul
'04
7:29 a.m.
From: Dr.Graef(a)t-online.de (Albert Graef)
does anyone know a library (preferably C/C++, or anything that
interfaces to it) which implements the Prony algorithm (a.k.a. least
squares fitting of a sampled signal to a sum of damped sinusoids)?
I placed a couple of papers at
ftp://ftp.funet.fi/pub/sci/audio/devel/dsp/
Please make the source code available (GPL or public domain
or equivalent). Do you need more papers?
I need a detailed spectrogram to Audacity. Audacity may now have
only FFT based linear scale spectrograms. I will draw manually the
pitch curves over the display. Instruments to be analysed are flutes,
violins and guitars. Both time and frequency accuracy should be good
when tracing the single pitch curve.
I will check more papers on the topic but I really would like to
see an overview of what techniques are available. Maybe a search in
the web helps.
Juhana