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PCM3070: Reduce the volume of audio high frequency.

Went Cao
Genius 5550 points
Part Number: PCM3070

Dear All

      How to reduce the volume of audio high frequency ,and keep the audio low frequency at the same time ? 

      Thanks a lot.

  • 0
    TI__Guru 57800 points

    Hi, Went,

    The PCM3070 features a fully-programmable miniDSP and also pre-defined processing paths, called processing blocks. On these you can find different biquad filters, which can be used to attenuate the high frequencies by configuring them as a treble-shelf filter. This type of filter can reduce the of high-frequency signals, keeping the amplitude of low-frequencies constant.

    Best Regards,

      -Diego Meléndez López
       Audio Applications Engineer