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Hi, YUFU0511 and Socrates!
SDI Audio Extractor has not only aud_clk_out ( which is an output ), but also aud_clk ( which is an input ).
Both are described as being 3.072 MHz.
How to deal with that?
Where from do I have to take 3.072 MHz to feed to aud_clk input?
From aud_clk_out output? Does that mean, that I have to connect aud_clk_out to aud_clk input?
It seems strange, that Audio Extractor may need anything else besides input video signals.
Did You try connecting aud_ws, aud_data, aud_clk_out to I2S inputs of any audio processing IC?
If Yes, the does it really recognize them as I2S ?
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Hi, Aphraton,
About the connection question, you may see an example design for audio extractor.
(The example design can be found in the folder xxx/altera/(your quartus II verions)/ip/altera/audio_embed/example/)
For your second question, in my case, I extract AES audio and write my own module to convert the AES audio to I2S signal.
Honored Contributor
