My guess is that, since the DS lacks the GBC CPU, those channels are emulated on one of the DS processors while playing GBA games. Presumably it's also an issue for GBA ports on the DS, like the Mega Man Zero collection.
Originally I thought this would impact sound quality on GBA games that use these channels, but I did a comparison recently and found the difference to be not really noticeable. Is there any information on how these legacy channels are performed on the DS?
Originally I thought this would impact sound quality on GBA games that use these channels, but I did a comparison recently and found the difference to be not really noticeable. Is there any information on how these legacy channels are performed on the DS?