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different input sample rates

SigmaDSP & SigmaStudio JackieTan Sep 15, 2013 00:00 3 replies Original on forum ↗
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JackieTan Question
Sep 15, 2013 00:00

Hi

From sound source, there are several sample rates input to ADAU1701 through IIS. Such as 44.1K, 48K, 96K.... Can it work? I set the DSP working at 44.1K only.

THanks.

Jackie

Audio Signal Processors

SigmaDSP Audio Processors

adau1701

KJBob Reply
Sep 17, 2013 00:00

Hello Jackie,

Unfortunately this would be possible only by including an asynchronous sample rate converter (ASRC) in your system. The AD1895 may be a good choice since it goes up to 192KHz. By examining its data sheet, you'll see the complexity needed to properly translate sample rates across sources and systems.

Several SigmaDSPs include built-in ASRCs, but these omit one or more ADAU1701 features you may be using (such as built-in ADCs, GPIO, and/or self-boot).

Best regards,

Bob

JackieTan Reply
Sep 17, 2013 00:00

Thanks Bob, I will read AD1895 datasheet, hope it will help.

BR,

Jackie

EZAdministrator Reply
Aug 2, 2018 00:00

This question has been assumed as answered either offline via email or with a multi-part answer. This question has now been closed out. If you have an inquiry related to this topic please post a new question in the applicable product forum.

Thank you,
EZ Admin