Audio decoder and audio decoding method

Details Audio decoder and audio decoding method Audio decoder and audio decoding method

2007-05-29

2007-05-29

Chase, Shelly (Department: 2133)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital data error correction

C714S776000

Reexamination Certificate

active

10860160

ABSTRACT:
The decoder for decoding the encoded audio data comprises an error detection device for detecting errors of encoded audio data; an error concealing method determining device for determining an audio frame and weight of window function which are used for concealing the errors based on error information detected by the error detection device; a frequency-to-time converter for converting audio data of frequency components to time-component audio frame; an audio frame buffer for accumulating the time-component audio frame outputted by the frequency-to-time converter; and a windowing processing device for adding weight onto the time-component audio frame outputted by the frequency-to-time converter and/or the audio frame accumulated in the audio frame buffer according to the weight of window function determined by the error concealing method determining device.

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Ko et al., A VLSI implementation of dual Ac-3 and MPEG-2 Audio decoder, 1998, IEEE, p. 326-327.

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