Method and apparatus for encoding audio data

Details Method and apparatus for encoding audio data Method and apparatus for encoding audio data

2011-07-05

2011-07-05

Azad, Abul (Department: 2626)

Data processing: speech signal processing, linguistics, language

Audio signal bandwidth compression or expansion

C704S230000

Reexamination Certificate

active

07974848

ABSTRACT:
Provided are an audio data encoding method and apparatus including determining an initial scale factor value for each frequency band of the audio data according to a quantization error and a maximum permissible distortion level for each frequency band; comparing the initial scale factor value for each frequency band and a predetermined common scale factor value and determining a final scale factor value for each frequency band based on a comparison result; quantizing the audio data using the final scale factor value for each frequency band; and encoding the quantized audio data.

REFERENCES:
patent: 2003/0088423 (2003-05-01), Nishio et al.

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