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Hello, I am looking for information about phase distribution in my vocoder (Matlab model of some kind of MBE vocoder, but some parameters are detected by Analyse-by-Synthese ). I have pitch frequency, amplitudes of each harmonics (spectral envelope), and phases. So I can synthese speech. But I shoudnt send phase to receiver. How to find phase of each harmonic, based only on pitch and harmonic amplitudes? And second question: How to quantize LSF coefficients.? In Matlab is interesting function poly2lsf, which convert LPC to LSF. It is posible to quantize LSF in 2-3 byte each. How to do it? Thanks in advance. |
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MBE
Started by ●June 20, 2002
Reply by ●February 8, 20032003-02-08
