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Need guidance for audio codec design in tms320c or adsp21

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bm_soe

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audio codec design

hi pals i want to a project to develope a audio codec .so can anyone tell me from where to start.as i want to do this on ti tms320cxxx or adsp21xx.which books are good for this.where to find good material on this.
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throwaway18

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audio codec design

I think you need to start by reading literature about human hearing eg human ears can distinguish between different frequencys but are insensative to phase,
perceived loundness of a paticular sound pressure level varies with frequency. Loud sounds can mask quiet sounds. There are a finite number of nerve cells for different frequencys so there must be some limit to the ability to tell the different between frequencys eg 400Hz versus 400.1Hz

You will also need a good knowledge of mathematics such as fourier transform.
 

    bm_soe

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