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frntc / SIDKick-pico

SIDKick pico is an inexpensive dual-SID-replacement for the C64 and C128
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Audio "bumps" when all voices (three audio channels) become silent for a while, then an audio channel resume to play aidio #63

Open ZorroDJ opened 2 weeks ago

ZorroDJ commented 2 weeks ago

I've tested all the possible settings, but it appears that a sort of "squelch" without a proper zero-crossing or DC-bias problem exists when emulated SID pass from no audio to some audio (tested with Mario Bros C64 port & Mojo Demo). This causes a intelligible "bumb" on my speakers every time. Original sid is ok. Tested with PWM with no D/A.

frntc commented 2 weeks ago

Yes, this is known (I implemented this to avoid a "click" when PWM is initialized and then used). Will be fixed at some point. It's not present in the DAC-output.