Tube Time

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Yes, it's a timing issue, I haven't yet been able to track it down.

I have not tried it, but in theory it is possible to do. You have to use a series resistor since the audio signal line is an op-amp summing junction....

probably because the internal speaker is not very good. the audio pin is pretty simple, it goes to a 620 ohm resistor to ground and then has a series coupling...

the sample rate is controlled purely by the DSP, and with either the Chinese clone firmware or the genuine DSP 2.02, it should work fine at 44KHz.

have you tried testing it using SBDIAG?

that seems to be good news and bad news. the good news is that the card works. the bad news is that those programs aren't really compatible. the main reason...

hmm, that does sound like an error in the DMA arbitration state machine.

Yep, preempting of an ongoing DMA cycle implies burst mode. An individual transfer is "atomic" but a burst operation isn't necessarily (iirc there is a way to do atomic burst...

Looks like the PS/2 is generating a weird DMA cycle. The SB expects to see CMD pulse after arb/gnt goes low (aka arbitration cycle ends). However it never does. You...