Subject: Re: Speech(or Phase) Reconstruction from Magnitude Spectrum From: Toth Laszlo <tothl(at)INF.U-SZEGED.HU> Date: Sat, 29 Jan 2005 14:38:41 +0100On 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). Laszlo Toth Hungarian Academy of Sciences * Research Group on Artificial Intelligence * "Failure only begins e-mail: tothl(at)inf.u-szeged.hu * when you stop trying" http://www.inf.u-szeged.hu/~tothl *