I have started to add some form of a "sample channel" for the Sega Master System MIDI Interface. It's always a tough choice between sample clarity versus sample volume (in relation to the other channels and in relation to inherent noise).
In the video below, the audio was taken directly from the AV output of a PAL SMS Model 1 unit. I think it would have been a little clearer coming directly from the chip, however the audio output from the samples is so low that it was necessary to boost the gain by quite a bit when recording, hence there is so much noise.
My current control mapping is such that pulse channel 2 is the sample channel, and sample capability can be enabled and disabled via a CC message. If sample mode is enabled on channel 2, then a note-on will trigger a sample and a note-off will stop sample playback.
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