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Different buffer sizes in audio I/O

Question asked by EliasK on Jan 13, 2012
Latest reply on Jan 31, 2012 by Harshit.Gaharwar

Hello all,

 

I am using the ADSP-21364 EZ-KIT Lite and I have done some simple processing based on the block-based talkthrough example. Now I want to code a simple overlap-add method. As I understand, the overlap-add method reads a buffer equal to the window length (e.g. 1024 samples) and outputs a buffer equal to the hop size/overlap size (e.g. 50% that is 512 samples).

 

So, I would like to know if it is possible for the ADC to work with a buffer of 1024 samples and the DAC to work with a buffer of 512 samples. I suppose I should setup two different SPORTS for this? Could someone provide an example or some guidance?

 

Thanks for you help,

Elias

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