Method and apparatus for expanding audio data

Details Method and apparatus for expanding audio data Method and apparatus for expanding audio data

2007-06-19

2007-06-19

Chin, Vivian (Department: 2615)

Data processing: generic control systems or specific application

Specific application, apparatus or process

Digital audio data processing system

C704S278000, C084S625000, C084S660000, C369S003000, C381S119000

Reexamination Certificate

active

10407852

ABSTRACT:
Systems implementing the invention allow a user to time stretch an audio track without changing the pitch of the sound, and to produce optimal audible qualities of the output signal. The approach utilized in the invention relies on providing several time stretching methods, each one of which is selected based on one or more criteria of the audio data properties. One method relies on crossfading pairs of segments of audio data while running one segment backward every other repetition. The second time stretching method detects inaudible segments and inserts longer periods of audible data within those segments. The third method utilizes a reverb to create a reverb segment that is played after the original segment.

REFERENCES:
patent: 5386493 (1995-01-01), Degen et al.
patent: 5842172 (1998-11-01), Wilson
patent: 6169240 (2001-01-01), Suzuki
patent: 6232540 (2001-05-01), Kondo
patent: 6534700 (2003-03-01), Cliff
patent: 6801898 (2004-10-01), Koezuka
patent: 6889193 (2005-05-01), McLean
patent: 2001/0017832 (2001-08-01), Inoue et al.
patent: 2001/0039872 (2001-11-01), Cliff
patent: 2003/0050781 (2003-03-01), Tamura et al.
patent: 2004/0122662 (2004-06-01), Crockett
patent: 2004/0254660 (2004-12-01), Seefeldt
Moller-Nielsen, P. Time-Stetching with a Time-Dependent Stretch Factor. Aarhus University. Oct. 22, 2002.
Moller-Mielse, P. Time-Strecthing with a Time-Dependent Stretch Factor. Aarhus University. Oct. 22, 2002.

Affiliated with

Also associated with

Rating

Method and apparatus for expanding audio data 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 apparatus for expanding audio data, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for expanding audio data will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3827967