ADAPTIVE TRANSFORM CODING OF SPEECH BY MEANS OF VECTOR QUANTIZATION (ATC-VQ).

Takehiro Moriya*, Masaaki Honda

*この研究の対応する著者

研究成果: Article査読

2 被引用数 (Scopus)

抄録

An adaptive transform coder is proposed that makes effective use of vector quantization. It is aimed at medium-band (4. 8-9. 6 kbps) speech coding. To minimize waveform distortion, discrete Fourier transform (DFT) coefficients of the linear prediction residue are quantized using two novel techniques: information has been adaptively allocated so as to obtain SNR gain, and quantization has been divided into two (vector-scalar) stages for a higher bit rate. Subjective quality at 7. 2 kbps in comparable to that for a 5 bit log PCM. The coder is resistant to background noise.

本文言語English
ページ(範囲)87-95
ページ数9
ジャーナルReports of the Electrical Communication Laboratory
34
1
出版ステータスPublished - 1986 1月 1
外部発表はい

ASJC Scopus subject areas

  • 工学(全般)

フィンガープリント

「ADAPTIVE TRANSFORM CODING OF SPEECH BY MEANS OF VECTOR QUANTIZATION (ATC-VQ).」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル