Development of a 4.8-9.6 kbps RELP vocoder
- 24 March 2005
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. 4, 554-557
- https://doi.org/10.1109/icassp.1979.1170817
Abstract
A new version of the Residual Excited Linear Predictive (RELP) vocoder has been simulated. The objective has been to reduce the data rate required for good quality speech to 4.8 kbps. Results have indicated that it is possible to remove the hoarseness currently associated with low data rate RELP speech. Development of a pitch predictive ADPCM residual encoder and preliminary results on new harmonic generation techniques are discused. Taped demonstrations will be played at the conference.Keywords
This publication has 10 references indexed in Scilit:
- Improved quantizer for adaptive predictive coding of speech signals at low bit ratesPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2005
- 9.6/7.2 Kbps Voice excited predictive coder (VEPC)Published by Institute of Electrical and Electronics Engineers (IEEE) ,2005
- A mixed-source model for speech compression and synthesisPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2005
- An intelligibility evaluation of several linear prediction vocoder modificationsIEEE Transactions on Acoustics, Speech, and Signal Processing, 1978
- On reducing the buzz in LPC synthesisThe Journal of the Acoustical Society of America, 1978
- Pitch-Adaptive DPCM Coding of Speech With Two-Bit Quantization and Fixed Spectrum PredictionBell System Technical Journal, 1977
- A computer program for designing digital elliptic filtersIEEE Transactions on Acoustics, Speech, and Signal Processing, 1976
- Average magnitude difference function pitch extractorIEEE Transactions on Acoustics, Speech, and Signal Processing, 1974
- A computer program for designing optimum FIR linear phase digital filtersIEEE Transactions on Audio and Electroacoustics, 1973
- Voice-excited vocoders for practical speech bandwidth reductionIEEE Transactions on Information Theory, 1962