I'd be interested to learn more about the timing of the frame counter in PAL units, especially how the IRQ functions. Does it happen less often than with the NTSC frame counter?
Because if it doesn't, it could be useful to easily maintain the same resolution for an audio engine in both regions by using the IRQ to update the APU registers, instead of skipping every 6th frame on NTSC, which makes arpeggios sound muddier.
Because if it doesn't, it could be useful to easily maintain the same resolution for an audio engine in both regions by using the IRQ to update the APU registers, instead of skipping every 6th frame on NTSC, which makes arpeggios sound muddier.