I am using:
- HifiBerry OS for Pi4 - HIFIBERRY DAC2 PRO XLR - Raspberry pi 4 - DSP ADD-ON BOARD I am playing music from Squeezelite and also tried radio with the same result.
Yesterday I had it running without DSP and it worked fine. Today I added the DSP module on top of the DAC board. The volume changes (all) have no effect at all. It plays at full volume. Also, all DSP settings which are now possible in the UI have no effect on my output. It seems that the DSP and volume affects a different channel than what I am getting on the output. The output is always clean and loud. Am I missing something fundamental? I'm also glad to answer questions that might help you to help me.
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Some HifiBerryOS details:
CURRENT_PIMODEL=4
CURRENT_MIXER_CONTROL="DSPVolume"
CURRENT_CARD="DAC2 Pro + DSP Module"
CURRENT_HW="card 0"
CURRENT_HW_SHORT=0
CURRENT_SYSNAME="HiFiBerry"
CURRENT_PLAYERS=""
CURRENT_HATINFO="HiFiBerry DAC+"
CURRENT_FEATURES="pi bluetooth pi3orlater arm7 dsp localui"
CURRENT_DSPTYPE="DSP add-on"
CURRENT_INTPIN="2"
PIVERSION=4