Method and apparatus for audio coding with noise suppression

Details Method and apparatus for audio coding with noise suppression Method and apparatus for audio coding with noise suppression

2003-09-04

2008-10-28

Singh, Ramnandan (Department: 2614)

Telephonic communications

Echo cancellation or suppression

Combined diverse function

Reexamination Certificate

active

07443978

ABSTRACT:
There is disclosed an audio coding apparatus which has a wideband encoder and noise canceller. The encoder includes a high-frequency audio coder and low-frequency audio coder. The low-frequency audio coder includes a low-frequency noise canceller. When the high-frequency audio coder is disabled, the noise canceller is disabled, and allows a digital audio signal to pass through it and outputs that signal to the encoder. When the high-frequency audio coder is enabled, the low-frequency noise canceller is disabled, and allows a digital audio signal to pass through it.

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