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This hack makes the voices clear.

Obviously, it cannot be just like the arcade sound, but having understandable sentences instead of an incomprehensible hoarse voice.

Having this on a Mega Drive/Genesis is priceless.

As a nostalgic, this hack is magnificent for my eyes... or for my ears, to be more precise.

The description greatly undersells the level of improvement. "Rise from your grave", "Power Up", and "Welcome to Your Doom" all sound much better than they did on the original cartridge and very close to the arcade game. Night and day difference.

I did not even know the Genesis hardware could do this. However, I've run this hack on a real Genesis Model 1.

Great patch! I can understand it. I'm playing on a Retron 5.

Considering Altered Beast was a release title for the Sega Mega Drive/Genesis, Sega tried their damnedest to recreate the arcade gameplay for the home. With games like Altered Beast, they were overall successful. Pretty much the only things missing from the 16-bit home port is the extra audio channels with cleaner voice samples, and the extra visual aesthetics like objects flying at the screen when you destroy them.

This hack aims at attempting to restore the clean voice over clips from the arcade version. Does it succeed? Yes... barely. I had to compare this hack to the original console and arcade versions to really hear the difference between them. The vocal samples are more pronounced and cleaner sounding compared to the Genesis version, but considering how compressed they had to be in order to fit in the ROM it's not a humongous leap in quality.

So why am I recommending it, you may ask? Well, it's because the hack does what it set out to do, even if minimally. The person who hacked this said that most of the voice samples used were below 5kHz in quality, so the fact that he was able to improve on what Sega already did is noteworthy.