- International Journal of Applied Mathematics Electronics and Computers
- Special Issue: (2016) Special Issue
- Residual Lsf Vector Quantization Using Arma Prediction
Residual Lsf Vector Quantization Using Arma Prediction
Authors : Selma Ozaydin
Pages : 79-81
View : 50 | Download : 8
Publication Date : 2016-12-01
Article Type : Research
Abstract :The residual LSF vector quantization yields bit rate reduction in the vocoders. In this work, a residual LSF vector quantization obtained from Auto Regressive Moving Average (ARMA) prediction is proposed for designing codebooks at very low bit rates. This residual quantization method is applied to multi stage vector quantization method and codebooks are designed. For each codebook, the effectiveness and quality are investigated by calculating the spectral distortion and outliers. The proposed quantization method reduced the distortion without any additional complexity.Keywords : very low bit rate, speech processing, residual vector quantization, formant tracking, ARMA prediction