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Re: Speech(or Phase) Reconstruction from Magnitude Spectrum
On Fri, 28 Jan 2005, ismail uysal wrote:
> Hence my question is...Is it possible to reconstruct speech using only
> magnitude spectrum? Any comments will be greatly appreciated.
You didn't mention whether you have a narrowband or wideband spectrum.
With a narrowband spectrum you can try to track the harmonics and take
care to keep the phase coherent from frame to frame. With this method you
can obtain guite a good (although not perfect) reconstruction. For more
details search for the sinusoidal (or "harmonics plus noise") model of
McAulay and Quatieri (or Serra and Smith).
Hungarian Academy of Sciences *
Research Group on Artificial Intelligence * "Failure only begins
e-mail: tothl@xxxxxxxxxxxxxxx * when you stop trying"