Title:
音声・音響送信器及び受信器のための方法及び装置
Document Type and Number:
Japanese Patent JP2010503881
Kind Code:
A
Abstract:
An audio/speech sender and an audio/speech receiver and methods thereof. The audio/speech sender comprising a core encoder adapted to encode a core frequency band of an input audio/speech signal having a first sampling frequency, wherein the core frequency band comprises frequencies up to a cut-off frequency. The audio/speech sender further comprises a segmentation device adapted to perform a segmentation of the input audio/speech signal into a plurality of segments, a cut-off frequency estimator adapted to estimate a cut-off frequency for each segment and adapted to transmit information about the estimated cut-off frequency to a decoder, a low-pass filter adapted to filter each segment at said estimated cut-off frequency, and a re-sampler adapted to resample the filtered segments with a second sampling frequency that is related to said cut-off frequency in order to generate an audio/speech frame to be encoded by said core encoder.
Inventors:
Brun, stephan
Application Number:
JP2009527704A
Publication Date:
February 04, 2010
Filing Date:
September 13, 2006
Export Citation:
Assignee:
Telefon Akti Bora Get Elm Ericson (Pubble)
International Classes:
G10L19/14; G10L19/00; G10L19/02; G10L19/022; G10L19/24; G10L21/04
Domestic Patent References:
| JP2002169597A | 2002-06-14 | |||
| JP2007333785A | 2007-12-27 | |||
| JP2004289196A | 2004-10-14 | |||
| JP2003216172A | 2003-07-30 | |||
| JPH11215006A | 1999-08-06 |
Attorney, Agent or Firm:
Yasunori Otsuka
Shiro Takayanagi
Yasuhiro Otsuka
Shuji Kimura
Osamu Shimoyama
Shiro Takayanagi
Yasuhiro Otsuka
Shuji Kimura
Osamu Shimoyama