Title:
ENCODING METHOD, DECODING METHOD, ENCODING DEVICE, DECODING DEVICE, PROGRAM, AND RECORDING MEDIUM
Document Type and Number:
WIPO Patent Application WO/2012/005212
Kind Code:
A1
Abstract:
In the present encoding method, a plurality of samples undergoes vector quantization to obtain a quantization value and a vector quantization index. A bit number less than or equal to a number obtained by subtracting a bit number used in the vector quantisation index encoding from a bit number allocated for the vector quantisation index encoding is allocated, following a predetermined priority on the basis of audio properties, to at least one sample position set from among a plurality of sample position sets each comprising a plurality of sample positions, and each being allocated priority on the basis of audio properties. With regards to each sample position set having a bit number allocated thereto, index information is output indicating a set of coefficients for minimising the sum, with regards to each sample position belonging to the sample set, of the error between values of samples belonging to the sample set and values obtained by multiplying quantization values of the samples belonging to the sample position set by a coefficients corresponding to the position of each sample.
Inventors:
FUKUI, Masahiro (9-11 Midori-cho 3-chome, Musashino-sh, Tokyo 85, 〒1808585, JP)
福井 勝宏 (〒85 東京都武蔵野市緑町三丁目９番１１号 ＮＴＴ 知的財産センタ内 Tokyo, 〒1808585, JP)
SASAKI, Shigeaki (9-11 Midori-cho 3-chome, Musashino-sh, Tokyo 85, 〒1808585, JP)
佐々木 茂明 (〒85 東京都武蔵野市緑町三丁目９番１１号 ＮＴＴ 知的財産センタ内 Tokyo, 〒1808585, JP)
HIWASAKI, Yusuke (9-11 Midori-cho 3-chome, Musashino-sh, Tokyo 85, 〒1808585, JP)
福井 勝宏 (〒85 東京都武蔵野市緑町三丁目９番１１号 ＮＴＴ 知的財産センタ内 Tokyo, 〒1808585, JP)
SASAKI, Shigeaki (9-11 Midori-cho 3-chome, Musashino-sh, Tokyo 85, 〒1808585, JP)
佐々木 茂明 (〒85 東京都武蔵野市緑町三丁目９番１１号 ＮＴＴ 知的財産センタ内 Tokyo, 〒1808585, JP)
HIWASAKI, Yusuke (9-11 Midori-cho 3-chome, Musashino-sh, Tokyo 85, 〒1808585, JP)
Application Number:
JP2011/065276
Publication Date:
January 12, 2012
Filing Date:
July 04, 2011
Export Citation:
Assignee:
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (3-1 Otemachi 2-chome, Chiyoda-ku Tokyo, 16, 〒1008116, JP)
日本電信電話株式会社 (〒16 東京都千代田区大手町二丁目３番１号 Tokyo, 〒1008116, JP)
FUKUI, Masahiro (9-11 Midori-cho 3-chome, Musashino-sh, Tokyo 85, 〒1808585, JP)
福井 勝宏 (〒85 東京都武蔵野市緑町三丁目９番１１号 ＮＴＴ 知的財産センタ内 Tokyo, 〒1808585, JP)
SASAKI, Shigeaki (9-11 Midori-cho 3-chome, Musashino-sh, Tokyo 85, 〒1808585, JP)
佐々木 茂明 (〒85 東京都武蔵野市緑町三丁目９番１１号 ＮＴＴ 知的財産センタ内 Tokyo, 〒1808585, JP)
日本電信電話株式会社 (〒16 東京都千代田区大手町二丁目３番１号 Tokyo, 〒1008116, JP)
FUKUI, Masahiro (9-11 Midori-cho 3-chome, Musashino-sh, Tokyo 85, 〒1808585, JP)
福井 勝宏 (〒85 東京都武蔵野市緑町三丁目９番１１号 ＮＴＴ 知的財産センタ内 Tokyo, 〒1808585, JP)
SASAKI, Shigeaki (9-11 Midori-cho 3-chome, Musashino-sh, Tokyo 85, 〒1808585, JP)
佐々木 茂明 (〒85 東京都武蔵野市緑町三丁目９番１１号 ＮＴＴ 知的財産センタ内 Tokyo, 〒1808585, JP)
International Classes:
G10L19/02
Attorney, Agent or Firm:
NAKAO, Naoki et al. (4th Floor, Shinjuku NSO Building1-22, Shinjuku 3-chom, Shinjuku-ku Tokyo 22, 〒1600022, JP)
Claims: