Title:
音響的エコー消去用オーディオシステムと方法
Document Type and Number:
Japanese Patent JP4644715
Kind Code:
B2
Abstract:
The present invention relates to an audio communication system and method with improved acoustic characteristics. In particular, the present invention discloses a system and a method for modifying the loudspeaker signal for allowing improved echo cancellation of the audio signal captured by the microphone without deteriorate the perceptual stereo (or multi channel) sound. The basic idea is to merge the signals from the different channels into a mono characteristic signal, still keeping sufficient spatial information to provide perceptual multi channel sound on the loud speaker.
Inventors:
Malton, Triguev Frederik
Application Number:
JP2007549294A
Publication Date:
March 02, 2011
Filing Date:
December 21, 2005
Export Citation:
Assignee:
Tandberg Telecom AS
International Classes:
H04M3/56; H04M1/60; H04R3/02
Domestic Patent References:
| JP2001100785A | ||||
| JP2002244698A | ||||
| JP2006514492A |
Attorney, Agent or Firm:
Patent business corporation Odashima patent office