Low-complexity sampling rate conversion method and apparatus for audio processing
First Claim
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1. A method for converting a digital audio signal from a first sampling rate to a second sampling rate, comprising:
- upsampling the audio signal to generate an upsampled audio signal; and
re-sampling said upsampled audio signal at the second sampling rate using linear interpolation.
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Abstract
A low-complexity sampling rate conversion (SRC) method and apparatus for the processing of digital audio signals. A first stage upsamples an input audio signal to generate an upsampled audio signal. For example, the first stage may perform 1:2 upsampling using a halfband filter. A second stage re-samples the upsampled audio signal from the first stage at a target sampling rate. For example, re-sampling may be achieved using linear interpolation.
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Citations
1 Claim
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1. A method for converting a digital audio signal from a first sampling rate to a second sampling rate, comprising:
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upsampling the audio signal to generate an upsampled audio signal; and
re-sampling said upsampled audio signal at the second sampling rate using linear interpolation.
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Specification