Multi-pass echo residue detection with speech application intelligence
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United States of America Patent
Stats
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Aug 14, 2012
Grant Date -
Jan 12, 2012
app pub date -
Sep 20, 2011
filing date -
Sep 12, 2005
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method is provided for multi-pass echo residue detection. The method includes detecting audio data, and determining whether the audio data is recognized as speech. Additionally, the method categorizes the audio data recognized as speech as including an acceptable level of residual echo, and categorizes categorizing unrecognizable audio data as including an unacceptable level of residual echo. Furthermore, the method determines whether the unrecognizable audio data contains a user input, and also determines whether a duration of the user input is at least a predetermined duration, and when the user input is at least the predetermined duration, the method extracts the predetermined duration of the user input from a total duration of the user input.
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