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PCM5242: HybirdFlow 5 mode can't change the rate?

aggil liang
Expert 2660 points
Part Number: PCM5242


Hi Teams

      When we use PCM5242EVM to design, we select HybirdFlow 5 mode,  the sample rate is 192kHz. We want to change the sample rate in this mode when then input audio signal is ohter sample rate, but we find it can't change. So we can't build and export other sample rate code. can you help this ?

  • 0
    TI__Guru 54603 points
    Hi Aggil,

    Unfortunately the PPC2 software was only developed to support the 192kHz input for the hybrid flow 5. As the DSP is limited by instruction at higher sample rates, HF5 is a very stripped down flow. If you application is going to support some other sample rates, I think you should should just implement another HF for those. For example, HF2 has a similar functionality, but with addition EQs and a 3 band DRC. You could just implement them both for the application in different CRAM banks, then switch banks when a new data rate is established.

    Thanks!
    Paul