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ADAU1452MINIZ problems

SigmaDSP & SigmaStudio markutrd Aug 28, 2016 00:00 2 replies Original on forum ↗
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markutrd Question
Aug 28, 2016 00:00

Hello!

I have an ADAU1452MINIZ development board that i am using for two active three way speakers. I am inputing signal to the board via optical spdif.

The problem that i am experiencing is that if i program a filter at, for example, 200Hz, the dsp will process at 100Hz. So for every frequency i use i have to input double than what i want. I have checked this with my calibrated measurement microphone.

Maybe the solution to my problem is simple, but i am very new to programming and i don't now exactly what setting to correct in the register controls of the ADAU1452.

Thank you for your support.

Razvan

Link to my project:

Project

Audio Signal Processors

adau1452

SigmaDSP Audio Processors

KJBob Reply
Aug 28, 2016 00:00

Hello Razvan,

Although the ADAU1452 itself can run at sample rates up to 192 KHz, the ADAU1452MINIZ board is hardwired to operate only at 48 KHz. Thus, you'll need to run your evaluations at 48 KHz:

Best regards,

Bob

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markutrd Reply
Aug 28, 2016 00:00

Thank you very much Bob for your help. I will change the setting to 48 KHz.

Best regards,

Razvan