Presentation-quality buffering process for real-time audio

Details Presentation-quality buffering process for real-time audio Presentation-quality buffering process for real-time audio

2007-01-09

2007-01-09

Harper, V. Paul (Department: 2626)

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

C370S394000, C370S412000

Reexamination Certificate

active

10002863

ABSTRACT:
A buffering process for real-time digital audio is provided to effect of network “jitter” from inconsistent network packet delivery rates. The buffering algorithm is particularly useful for audio data including distinct bursts separated by silence, such as speech. The process holds incoming audio packets in a queue until either: (a) the buffer contents meet a predetermined threshold; or (b) the end packet of a burst is received. The result is that silent periods between bursts may expand or decrease relative to the original audio pattern, allowing cumulative jitter to be played out as silence. The threshold is sized such that the deviation in silence is unnoticeable by a listener. In an optional embodiment, the process periodically adjusts the threshold to adapt to network conditions.

REFERENCES:
patent: 4588857 (1986-05-01), Arsem
patent: 5586172 (1996-12-01), Sakurai et al.
patent: 5710591 (1998-01-01), Bruno et al.
patent: 5872789 (1999-02-01), Orleth et al.
patent: 6141324 (2000-10-01), Abbott et al.
patent: 6226668 (2001-05-01), Silverman
patent: 6233317 (2001-05-01), Homan et al.
patent: 6301258 (2001-10-01), Katseff et al.
patent: 6360271 (2002-03-01), Schuster et al.
patent: 6434606 (2002-08-01), Borella et al.
patent: 6665283 (2003-12-01), Harris et al.
patent: 6665317 (2003-12-01), Scott
patent: 6782363 (2004-08-01), Lee et al.
patent: 6801532 (2004-10-01), Anandakumar et al.
patent: 6977942 (2005-12-01), Raisanen
patent: 2004/0120309 (2004-06-01), Kurittu et al.
patent: 403225642 (1991-10-01), None
patent: 407014016 (1995-01-01), None
patent: 408023526 (1996-01-01), None
patent: 02000350173 (2000-12-01), None
Hilt, Volker, et al., “A Light-Weight Repair Protocol for the Loss-Free Recording of MBone Sessions”, in Proceedings of the 21stInternational Conference on Distributed Computing Systems Workshops, Mesa, Arizona, Apr. 16-19, 2001,IEEE Computer Society, pp. 63-68.
Holfelder, Wieland, “Interactive remote recording and playback of multicast videoconferences”, Computer Communications 21 (1998) pp. 1285-1294.
Lambrinos, Lambros, et al., “The Multicast Multimedia Conference Recorder”, in the Proceedings of the 7thInternational Conference on Computer Communications and Networks, Lafayette, Louisiana, Oct. 12-15, 1998,IEEE Computer Society, pp. 208-213.

Affiliated with

Also associated with

Rating

Presentation-quality buffering process for real-time audio does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Presentation-quality buffering process for real-time audio, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Presentation-quality buffering process for real-time audio will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3787398