| 摘要 |
A system and method for preventing artifacts in an audio data encoder device (112) comprises a filter bank for filtering source audio data (710) to produce frequency sub-bands, a psycho-acoustic modeler for calculating signal-to-masking ratios for the source audio data (712), and a bit allocator (714) for using the signal-to-masking ratios to assign a finite number of allocation bits to represent the frequency sub-bands. In the absence of a defined significant event, the bit allocator performs a sub-band forcing strategy (722), including a prebit allocation procedure, to prevent artifacts or discontinuities in the encoded audio data.
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