I know you don't solder, bro, but mixing the PSG and YM2612 is as easy as soldering the two outputs together on one wire.
The reason why the MD1 has inferior audio to the MD2, is because the MD1 has an amplified circuit, hence the volume slider on the front of the console. But a MD1 can actually sound identical to a MD2 if you do the same as what you did to this console. Both consoles have the same YM2612s and PSGs, it's just that the built-in sound circuits are different.
@LittleMichaelz I've done the same procedure to a model 1 and it doesn't quite sound identical. Not only are the sound circuits different but the sound chips are different aswell within each model.
model 1's use discrete FM-YM2612 chips while model 2's use ASIC-BASED FM-YM2612'S. Although the mixing circuits of the model 2's are responsible for the shitty sound output. All I did was bypass the model 2 mixing circuit with my own connections creating clearer sound.
@Adam060756 Ah, cool facts. I thought both the model 1 and 2 used the exact same chips, just in different form factors. But even if it doesn't sound identical, it's close. What mainly makes the MD1 inferior to the MD2 with sound, is because it comes with an amplified circuit that over-powers the base and causes distortion. Long sustained notes play too long and start sounding all distorted. The MD1, if you take raw output from either the Sony chip, or the FM and PSG, it sounds better, as well.
@LittleMichaelz I don't know why SEGA made that amplifier circuit for the MD1, anyway, because it doesn't sound as good. Maybe it was for headphones that didn't have any volume control? I don't know. But just let that headphone jack for what it is, get a clean line-out from the YM2612 and PSG, and amplify it with your own sound system. That's probably the best solution for the MD1. You can, like, make a whole complicated circuit for the absolute best audio, but it's not worth it.
@Adam060756 It's very cool to see someone who's got some knowledge of the hardware, as well. I seem to be one of the few who's actually interested in modding circuit boards and stuff.
@dissident93 If you like seeing videos where the uploader opens up consoles to do mods and stuff then you should check out the Youtube user MN12BIRD. He's opened up heaps of Mega Drive's and Genesis's and done comparisons and talked about how they work and shit. He explores all video game consoles and content, not just the Mega Drive.
@Adam060756 Well, not the mods themselves, but the focus on audio is what made me love this upload. I wish it get into that myself.
And it's super cool how you got all that audio equipment there! I'd be fascinated with all that in person! Now, I gotta go watch the related video I see on the Graphic EQ!! :D
That's a counterfeit MD2
ItsAReefer 2 months ago
I know you don't solder, bro, but mixing the PSG and YM2612 is as easy as soldering the two outputs together on one wire.
The reason why the MD1 has inferior audio to the MD2, is because the MD1 has an amplified circuit, hence the volume slider on the front of the console. But a MD1 can actually sound identical to a MD2 if you do the same as what you did to this console. Both consoles have the same YM2612s and PSGs, it's just that the built-in sound circuits are different.
LittleMichaelz 2 months ago
@LittleMichaelz I've done the same procedure to a model 1 and it doesn't quite sound identical. Not only are the sound circuits different but the sound chips are different aswell within each model.
model 1's use discrete FM-YM2612 chips while model 2's use ASIC-BASED FM-YM2612'S. Although the mixing circuits of the model 2's are responsible for the shitty sound output. All I did was bypass the model 2 mixing circuit with my own connections creating clearer sound.
Adam060756 2 months ago
@Adam060756 Ah, cool facts. I thought both the model 1 and 2 used the exact same chips, just in different form factors. But even if it doesn't sound identical, it's close. What mainly makes the MD1 inferior to the MD2 with sound, is because it comes with an amplified circuit that over-powers the base and causes distortion. Long sustained notes play too long and start sounding all distorted. The MD1, if you take raw output from either the Sony chip, or the FM and PSG, it sounds better, as well.
LittleMichaelz 2 months ago
@LittleMichaelz I don't know why SEGA made that amplifier circuit for the MD1, anyway, because it doesn't sound as good. Maybe it was for headphones that didn't have any volume control? I don't know. But just let that headphone jack for what it is, get a clean line-out from the YM2612 and PSG, and amplify it with your own sound system. That's probably the best solution for the MD1. You can, like, make a whole complicated circuit for the absolute best audio, but it's not worth it.
LittleMichaelz 2 months ago
@LittleMichaelz I totally agree bro.
Adam060756 2 months ago
@Adam060756 It's very cool to see someone who's got some knowledge of the hardware, as well. I seem to be one of the few who's actually interested in modding circuit boards and stuff.
LittleMichaelz 2 months ago
Those are capacitors.
redSKORPION50 2 months ago
You say you're not a wiz at this, but you know way more about hardware integration than me!
And I think this may be your greatest upload! I love hearing about audio, and mixing boards and shit.
You should make more videos with the technicalities like this one! :D
dissident93 7 months ago
@dissident93 If you like seeing videos where the uploader opens up consoles to do mods and stuff then you should check out the Youtube user MN12BIRD. He's opened up heaps of Mega Drive's and Genesis's and done comparisons and talked about how they work and shit. He explores all video game consoles and content, not just the Mega Drive.
Cheers! I'm glad you like the video.
Adam060756 7 months ago
@Adam060756 Well, not the mods themselves, but the focus on audio is what made me love this upload. I wish it get into that myself.
And it's super cool how you got all that audio equipment there! I'd be fascinated with all that in person! Now, I gotta go watch the related video I see on the Graphic EQ!! :D
Cheers!
dissident93 7 months ago
@dissident93 I've always loved music from the day I was born so i've always had a gigantic sound system.
Adam060756 7 months ago
@Adam060756 Awesome.
dissident93 7 months ago