US PATENT DOCUMENTS 6.959. 276 B2 10/2005 Droppo et al. 7,043,030 B1 5/2006
Furuta 4,843,562 A 6/1989 Kenyonet al. 7,047,047 B2 5/2006 Acero et al. 4,845,466 A …

There is provided a noise cancellation system, comprising: an input for a digital signal, the
digital signal having a first sample rate; a digital filter, connected to the input to receive the …

(57) ABSTRACT A Voice enhancement logic improves the perceptual quality of a processed
Voice. The Voice enhancement system includes a noise detector and a noise attenuator …

5.426, 704 5,442,712 5,479,517 5,485,522 5,495.415 5,502,688 5,526,466 5,550,924
5,568.559 5,584,295 5,586,028 5,617,508 5,651,071 5,677.987 5,680,508 5,692, 104 …

An end-pointer determines a beginning and an end of a speech segment. The end-pointer
includes a voice triggering module that identifies a portion of an audio stream that has an …

The present invention pertains to an encoding device and method, a decoding device and
method, and to a program, with which sound of an appropriate volume level can be obtained …

4486, 900 A 12/1984 Cox et al. 4,531,228 A 7, 1985 NoSo et al. 4,630,305 A 12/1986 Borth
et al. 4, 811404 A 3, 1989 Vilmur et al. 4,843,562 A 6/1989 Kenyonet al. 5,027,410 A 6, 1991 …

4, 811404 A 3, 1989 Vilmur et al. 7,043,030 B1 5, 2006 Furuta 4,843,562 A 6/1989 Kenyonet
al. 7,047,047 B2 5/2006 Acero et al................. 455,563 4,845,466 A 7, 1989 Hariton et al …

(57) ABSTRACT A rule-based end-pointer isolates spoken utterances con tained within an
audio stream from background noise and non-speech transients. The rule-based end …

A loudness enhancement system and method is described that increases the loudness of an
audio signal being played back by an audio device that places limits on the dynamic range …