Waveform fetch unit for processing audio files

Details Waveform fetch unit for processing audio files Waveform fetch unit for processing audio files

2008-03-04

2010-10-05

Fletcher, Marlon T (Department: 2832)

Music

Instruments

Electrical musical tone generation

C084S602000, C084S604000, C084S615000, C084S653000

Reexamination Certificate

active

07807914

ABSTRACT:
This disclosure describes techniques that make use of a waveform fetch unit that operates to retrieve waveform samples on behalf of each of a plurality of hardware processing elements that operate simultaneously to service various audio synthesis parameters generated from one or more audio files, such as musical instrument digital interface (MIDI) files. In one example, a method comprises receiving a request for a waveform sample from an audio processing element, and servicing the request by calculating a waveform sample number for the requested waveform sample based on a phase increment contained in the request and an audio synthesis parameter control word associated with the requested waveform sample, retrieving the waveform sample from a local cache using the waveform sample number, and sending the retrieved waveform sample to the requesting audio processing element.

REFERENCES:
patent: 5809342 (1998-09-01), Gulick
patent: 5918302 (1999-06-01), Rinn
patent: 5977469 (1999-11-01), Smith et al.
patent: 6858790 (2005-02-01), Rossum
patent: 1087372 (2001-03-01), None
patent: 1580729 (2005-09-01), None
Partial International Search Report—PCT/US08/057221—International Search Authority, European Patent Office—Sep. 25, 2008.

Affiliated with

Also associated with

Rating

Waveform fetch unit for processing audio files does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Waveform fetch unit for processing audio files, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Waveform fetch unit for processing audio files will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4155340