Patent Number: 6,167,375

Title: Method for encoding and decoding a speech signal including background noise

Abstract: A method for encoding speech wherein an input speech signal is separated by a component separator into a first component mainly constituted by speech and a second component mainly constituted by a background noise at each predetermined unit of time, a bit allocation selector selects bit allocation for each component based on the first and second components from among a plurality of predetermined candidates for bit allocation, a speech encoder and a noise encoder encode the first and second components from the component separator based on the bit allocation according to predetermined different methods for encoding, and a multiplexer multiplexes encoded data of the first and second components and information on the bit allocation and outputs them as transmitted encoded data.

Inventors: Miseki; Kimio (Kobe, JP), Oshikiri; Masahiro (Kobe, JP), Amada; Tadashi (Kobe, JP), Akamine; Masami (Kobe, JP)

Assignee: Kabushiki Kaisha Toshiba

International Classification: G10L 19/02 (20060101); G10L 19/00 (20060101); G10L 019/02 ()

Expiration Date: 12/26/2017