Title :
A novel quantization scheme for the noise-like component in waveform interpolation speech coding
Author :
Nurminen, Jani ; Heikkinen, Ari ; Saarinen, Jukka
Author_Institution :
Institute of Digital and Computer Systems, Tampere University of Technology, Finland
Abstract :
This paper presents a novel and efficient coding scheme for the noise-like component in waveform interpolation speech coding. The techniques employed in the task are described in detail and the advantages gained by using them are discussed. These techniques are shown to enable perceptually transparent coding of the magnitude spectra of the noise-like component with only ten bits per frame and to offer speech quality improvements at higher bit rates. The most significant features of the proposed scheme are smoothed representation and matrix quantization of the magnitude spectra. The proposed coding techniques can be used for enhancement of speech coders based on the waveform interpolation approach.
Keywords :
Argon; Interpolation; Quantization; Search problems; Speech coding; Speech processing;
Conference_Titel :
Acoustics, Speech, and Signal Processing (ICASSP), 2002 IEEE International Conference on
Conference_Location :
Orlando, FL, USA
Print_ISBN :
0-7803-7402-9
DOI :
10.1109/ICASSP.2002.5743801