Method and device for controlling the levels of voiced speech, u

Details Method and device for controlling the levels of voiced speech, u Method and device for controlling the levels of voiced speech, u

1995-09-15

1999-02-02

Hudspeth, David R.

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

704208, 704226, 704233, G10L 302

Patent

active

058678158

ABSTRACT:
An encoding apparatus provided at the transmission side includes a low pass filter, a high pass filter, a nonvoice band detecter, a switch and an adder for separating a speech component and a background noise component from an inputted signal. The low pass filter provides a voice band of the speech component and the high pass filter provides a nonvoice band of the speech component. The nonvoice band component is separated from the background noise portion of the output of the high pass filter and re-combined with the voice band to provide the separated speech component. The separated speech component and the background component are individually encoded by a speech encoder and a noise encoder, respectively, and transmitted. In a decoding apparatus at the reception side, the speech component and the background noise component are individually decoded by a speech decoder and a noise decoder, respectively. The decoded speech component and the background noise component are level-adjusted based upon an appropriate level ratio by level controllers, respectively, and then mixed by an adder and outputted as a reproduced signal.

REFERENCES:
patent: 5097510 (1992-03-01), Graupe
patent: 5133013 (1992-07-01), Munday
patent: 5228088 (1993-07-01), Kane et al.
patent: 5280561 (1994-01-01), Satoh et al.
patent: 5293450 (1994-03-01), Kane et al.
patent: 5406635 (1995-04-01), Jarvinen
patent: 5414796 (1995-05-01), Jacobs et al.
patent: 5479560 (1995-12-01), Mekata

Affiliated with

Also associated with

Rating

Method and device for controlling the levels of voiced speech, u does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and device for controlling the levels of voiced speech, u, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and device for controlling the levels of voiced speech, u will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1127213