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US 2012/0239176 A1Published application
Audio time stretch method and associated apparatus
AssigneeMStar Semiconductor, Inc.
InventorChu-Feng Lien
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Abstract
An audio time stretch method and associated apparatus is provided. The method includes steps of calculating an energy level according to amplitudes of a plurality of received data, and determining whether the audio data requires audio time stretch according to the energy level. Audio data with lower energy level and volume are selectively time-stretched to alleviate audio quality degradation.
Claims19
A method for audio time stretch, comprising:
- receiving a plurality of first audio data;
- calculating an energy level according to amplitudes of the first data;
- and
- selectively performing a waveform search for the first audio data according to the energy level.
1 more element
An apparatus for audio time stretch, comprising:
- an energy level module, for calculating an energy level according to amplitudes of a plurality of first audio data;
- a determining module, coupled to the energy level module, for determining whether to perform a waveform search among the first audio data according to the energy level to output a determination result;
- and
Dependencies are inferred from the claim text.