Patent ID: 8327209
Filing Date: 2012-12-04
Classification: G10L

Abstract:
1. A sound data decoding apparatus comprising: a loss detector configured to detect whether a loss exists in a sound data; a sound data decoder configured to decode said sound data to generate a first decoded sound signal; a sound data analyzer configured to extract a first parameter from said first decoded sound signal; a parameter modifying section configured to modify said first parameter based on a result of said detection of said loss; a sound synthesizing section configured to generate a first synthesized sound signal by using said modified first parameter; and a sound signal outputting section, wherein said loss detector is configured to detect whether a sound frame following said loss is received before said sound signal outputting section outputs a sound signal for interpolating said loss, said sound data decoder is configured to decode said sound frame to generate a second decoded sound signal, said sound data analyzer is configured to perform a time reversal on said second decoded sound signal to extract a second parameter, said parameter modifying section is configured to perform a predetermined modification on said second parameter, and said sound synthesizing section is configured to generate a second synthesized sound signal by using said modified second parameter.