This option is actually what Sega engineers would have preferred but had to live with the distorted and noisy real hardware.
Mame core is the most pristine sounding with no emulation of the ladder effect distortion, and no DAC Quantization (if Off), it is a pure FM synthesizer. YM3438 has better DACs and sounds cleaner with less ‘ladder effect’ (google it) distortion and noise than YM2612.īUT, some games actually use the YM2612 ‘ladder effect’ noise to their advantage therefor sound more correct on the 2612 than on the 3438.ĭiscrete YM3438 never appeared in any Genesis console but it sounds similar to the ASIC YM3438 and can be installed in a Model1. These are the settings you will want to have to get the best sound quality right now (until the next round of improvements lol) Here is a couple of comparison videos of how the various models of the Genesis actually sounded.Ĭopy / Pasting from the Retroarch forums: ĭiscrete YM2612 appeared on all Model 1 except the badly distorted VA7.ĪSIC YM3438 was integrated into the main chip on the majority of Model 2 except VA2 and VA2.3 which had Discrete YM2612 like Model 1. The mame option is still very good with the low pass audio filter on and set to 40%. I had my frame delay set to 10 before but I had to drop it all the way down to 2 to fix the audio glitching and frame rate. If you have your frame delay set higher than the default of 0 try bringing that back down to 0 or try a number lower than what you had to see if it fixes your sound and frame rate using this option. These changes bring it more in line with a Model 1 Genesis which is known to be better sounding than the later revisions.Įdit: There is a catch to this though, the "nuked opn2" setting will increase your CPU requirements for this core. Over the last week or so there have been a couple of things added to the Core Options for the Genesis GX core that significantly improves the sound quality of it.
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