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  • #1704

    in your example volume start to -20dB , how to set it to start to -1db?


    Volume is documented in the github page HERE

    Change line 214 of SFEMP3Shield.cpp from 20 to 2


    I have thought about adding a feature to store the volume into Flash, as to persist between power cycles. But I hesitate as being fringe (too host specific) and not part of the core scope of this example. And requires additional libraries.




    nonlinearmind had asked about getting most volume possible.

    SS_SWING of the SCI_STATUS allows you to go above the 0 dB volume setting. Value 0 is normal mode, 1 gives +0.5 dB, and 2 gives +1.0 dB. Settings from 3 to 7 cause the DAC modulator to be overdriven and should not be used. However, I doubt the receiving device will be able to handle it with out clipping.

    At this time the released public GITHUB driver does not support a public member function to change this. Assuming 0dB should be loud enough.

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