Extension and complexity reduction of TwinVQ audio coder

Author

Moriya, Takehiro ; Iwakami, Naoki ; Ikeda, Kazunaga ; Miki, Satoshi

Author_Institution

NTT Human Interface Labs., Tokyo, Japan

Volume

2

fYear

1996

fDate

7-10 May 1996

Firstpage

1029

Abstract

This paper proposes two novel techniques for twinVQ (transform domain weighted interleave VQ) high-quality audio coding scheme for rates lower than 64 kbit/s. One is an extension of the weighted interleave technique to the time and input channel domains as well as the frequency domain. The other is an efficient representation scheme of the spectral envelope by means of a interpolated square root LPC (linear predictive coding) spectrum

Keywords

audio coding; frequency-domain analysis; interpolation; iterative methods; linear predictive coding; signal representation; spectral analysis; transform coding; vector quantisation; 64 kbit/s; complexity reduction; frequency domain; high-quality audio coding; input channel domain; interpolated square root LPC; linear predictive coding spectrum; spectral envelope representation; time domain; transform domain weighted interleave VQ; twinVQ audio coder; Audio coding; Bit rate; Decoding; Frequency domain analysis; Humans; IEC standards; ISO standards; Linear predictive coding; Quantization; Robustness;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1996. ICASSP-96. Conference Proceedings., 1996 IEEE International Conference on

Conference_Location

Atlanta, GA

ISSN

1520-6149

Print_ISBN

0-7803-3192-3

Type

conf

DOI

10.1109/ICASSP.1996.543299

Filename

543299