Title:
音声信号中の遷移フレームの符号化のための方法およびデバイス
Document Type and Number:
Japanese Patent JP5166425
Kind Code:
B2
Abstract:
There is provided a transition mode device and method for use in a predictive-type sound signal codec for producing a transition mode excitation replacing an adaptive codebook excitation in a transition frame and/or a frame following the transition in the sound signal, comprising an input for receiving a codebook index and a transition mode codebook for generating a set of codevectors independent from past excitation. The transition mode codebook is responsive to the index for generating, in the transition frame and/or frame following the transition, one of the codevectors of the set corresponding to the transition mode excitation. There is also provided an encoding device and method and a decoding device and method using the above described transition mode device and method.
Inventors:
Vaklav Exler
Milan Jelinek
Red one salami
Milan Jelinek
Red one salami
Application Number:
JP2009533622A
Publication Date:
March 21, 2013
Filing Date:
October 24, 2007
Export Citation:
Assignee:
Voice Age Corporation
International Classes:
G10L19/12; G10L19/09; G10L19/16; G10L25/75
Foreign References:
| US6233550 | ||||
| US20040148162 |
Attorney, Agent or Firm:
Masatake Shiga
Takashi Watanabe
Yasuhiko Murayama
Shinya Mitsuhiro
Takashi Watanabe
Yasuhiko Murayama
Shinya Mitsuhiro