Low Rate Speech Coding using a Glottal Pulse Codebook

In this paper, we describe a new method for speech coding at low rates using a glottal pulse codebook, populated by typical glottal jlow derivative waveforms originating from recorded speech, Voiced speech is produced by periodizing a codebook entry for a given pitch value. All parameters in the coder are estimated utilizing an analysis-by-synthesis procedure.

[1]  S. D. Hansen,et al.  Improvements in 2.4 kbps high-quality speech coding , 1992, [Proceedings] ICASSP-92: 1992 IEEE International Conference on Acoustics, Speech, and Signal Processing.

[2]  Per Hedelin,et al.  Code-book driven glottal pulse analysis , 1989, International Conference on Acoustics, Speech, and Signal Processing,.

[3]  Nobuyoshi Ishikawa,et al.  A 5.6 kb/s speech codec using a pulse codebook and improved Viterbi decoding , 1994, Proceedings of ICASSP '94. IEEE International Conference on Acoustics, Speech and Signal Processing.

[4]  Thomas Eriksson,et al.  Vector quantization of glottal pulses , 1995, EUROSPEECH.

[5]  Per Hedelin.  High quality glottal LPC-vocoding , 1986, ICASSP '86. IEEE International Conference on Acoustics, Speech, and Signal Processing.