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Altera_Forum
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15 years ago

What data type the sound data from WM8731L Codec..

Hi all, I am trying to retrieve the sound data that is captured by WM8731L Codec on DE2 Board... I am refering the DE2 Karaok-machine Demonstration program. I noticed there are several ...
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Altera_Forum
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15 years ago

AUD_ADCDAT is the audio data.

The audio interface of WM8731 is IIS, which have these pins:

BCK, bit clock.

LRCK, also called WCK, every cycle of this sig indicates a sample of audio data contains left and right ch, probable low for left and high for right.

DACDATA, serial data for playback synchronized by BCK.

ADCDATA, serial data for record synchronized by BCK.

Detailed format is differ with different configuration, which can be configured via IIC ports. You must refer to WM8731's datasheet.