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amb wrote:That's definitely strange! The firmware has no control over the WM8741's analog output DC offset. They should be the same regardless of what input is selected on the SRC4392. All signals up to the inside of the WM8741s are digital, and there is certainly nothing in the firmware that could alter the "DC offset" of that! If there was a firmware issue that could influence this, then all γ3s should exhibit this issue, but clearly that is not the case.
I am as baffled as you are on this.
amb wrote:How does the volume change with the DC offset? I'm not sure I get what you're describing in terms of cause and effect.]
Are you 100% sure of the correlation between input switching and DC offset? Maybe the problem has nothing to do with the SRC4392. Have you tried reflowing the solder joints of both WM8741s and their surrounding resistors and capacitors? Also, make sure that the 5V analog power supply (individually regulated with ADM7150-5.0s for each WM8741) have constant 5V on them under all circumstances.
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