Fixed-Location Pulse Linear Prediction Coding Vocoder Model for Low Bit Rate Speech Coding

Figure 1

(a) Residual signal; (b) original speech; (c) multipulse excitation signal obtained by the sequential method; (d) speech synthesized using the excitation signal in (c); (e) multipulse excitation signal obtained by the presented method with the same locations as the signal in (c); (f) speech synthesized using the excitation signal in (e); (g–p) the pulses with the locations arbitrarily assigned and the speeches synthesized.

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