Circuit for determining that an audio signal is either speech or

Details Circuit for determining that an audio signal is either speech or Circuit for determining that an audio signal is either speech or

1988-10-26

1990-05-15

Isen, Forester W.

Electrical audio signal processing systems and devices

Monitoring of sound

381 46, 381110, H04R 2900

Patent

active

049264842

ABSTRACT:
A threshold level for determining whether an input audio signal is a speech or non-speech signal in a voice operated recorder is changed in accordance with the ratio of the non-speech duration of the input audio signal to a predetermined period of time so as to decrease the influence of ambient noise on the judgement between speech and non-speech signals as made by the voice operated recorder.

REFERENCES:
patent: 3832491 (1974-08-01), Sciulli et al.
patent: 4008375 (1977-02-01), Lanier
patent: 4433435 (1984-02-01), David
patent: 4449190 (1984-05-01), Flanagan et al.
patent: 4542525 (1985-09-01), Hopf
patent: 4696041 (1987-09-01), Sakata
patent: 4700392 (1987-10-01), Kato et al.

Affiliated with

Also associated with

Rating

Circuit for determining that an audio signal is either speech or does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Circuit for determining that an audio signal is either speech or, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circuit for determining that an audio signal is either speech or will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-628232