| Autor: |
Shigeyuki Unagami, Yoshinori Tanaka, Tomohiko Taniguchi, Yasuji Ota, Fumio Amano |
| Rok vydání: |
1994 |
| Předmět: |
|
| Zdroj: |
The Journal of the Acoustical Society of America. 96:3832-3832 |
| ISSN: |
0001-4966 |
| DOI: |
10.1121/1.411401 |
| Popis: |
A speech coding apparatus includes multipliers and prediction filters which successively process a plurality of signal vectors obtained from an index 2 M and dimension N code book to obtain a reproduced speech signal. Error detectors are provided which find the error between the input speech signal and reproduced speech signal. Evaluators are also provided which calculate the optimum signal vectors giving the smallest errors. The multipliers are connected to a reduced code book, which is constituted of n number of code book blocks of index 2 M/n and dimension N/n (where n is an integer of two or more). There are n number of multipliers, n number of prediction filters, n number of error detectors, and n number of evaluators corresponding to the code book blocks. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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