Method and device for encoding wideband speech capable of independently controlling the short-term and long-term distortions
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Apr 15, 2004
app pub date -
Jul 17, 2003
filing date -
Jul 17, 2002
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A method for encoding wideband speech includes sampling the speech to obtain successive voice frames each comprising a predetermined number of samples, and determining for each voice frame parameters of a linear prediction model. The parameters include a long-term excitation word extracted from an adaptive coded directory, and a short-term excitation word extracted from a fixed coded directory. The extraction of the long-term excitation word is performed using a first weighting filter. The extraction of the short-term excitation word is performed using a second weighting filter cascaded with a third weighting filter. The first and third weighting filters are equal.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully