And it's a pity in fact, since the audio circuit of these systems had the potential of being pretty good but they fucked up the gain stage ina pretty bad way. That's what Jeroi was doing at some point: Rescue the original audio amp and fix what's wrong .Quote:
Originally Posted by MaxWar
There surely gotta be wrong a lot more than one thing, correct ?! A dying cat sounds better. And I love cats. It just doesn't seem likely that only one tiny mistake caused the issues these things have. There gotta be tons of problems with the circuit.
Yeah, and it's a shame this project is not completed/released yet. His last recordings of it sounded very good.Quote:
Originally Posted by villahed94
Wait, the Model 2 Sega CD also has sound issues?Quote:
Originally Posted by Dragonmaster Lou
Quote:
Originally Posted by stika
Not that I know.
Quote:
Originally Posted by Christuserloeser
Thread should have been closed years ago after ^Quote:
Originally Posted by gamegenie
I haven't heard it, though I'm new to this forum. I'm more concerned about losing my Model 1 Genesis for a Model 2.Quote:
Originally Posted by stika
Although, doesn't the Sega CD offload Genesis sound processing to an extent when it's attached? I could've sworn I read that somewhere.
It just mixes in the sound from the genesis through the mixing cable. the OEM part had a ferrite core on one of the ends of the cable to minimize any RF (or other) interference between the two systems, but the difference is negligible. No further processing on the Genesis sound is done from what I can tell.Quote:
Originally Posted by Dragonmaster Lou
This sounds like some hardcore Christian defending his religion against science. "Oh yeah? Evolution is just a rumour. There is no proof for it. Read the bible, it's the word of God and therefore the truth!"Quote:
Originally Posted by gamegenie
Personally, I don't think there's enough of a difference between the sounds to really matter. But if you want to split hairs, more power to you.
- It kinda seems to depend on what variant of model 2 you own. I have personally only witnessed the worst of the worst, so I don't know if there are better model 2s out there. But based on those definitely no splitting of hairs here.Quote:
Originally Posted by Christuserloeser
Oh, there is definitely better than those God-awful VA0 to VA1.8 Genesis Model 2s out there when it comes to the stock audio amp. The best of the Genesis Model 2s with regards to the stock audio amp are the VA3 and VA4 boards, though when it comes to overall audio hardware, the VA2 and VA2.3 boards come out on top as they're the only ones with a YM2612. Since then, no Genesis would ever get a YM2612 again. It's a shame the audio circuitry had been made wrong on the VA2 and VA2.3 boards with excessive low-pass filtering (use of a second-order filter rather than a first-order which degrades the sound quite a bit) and incredibly distorted PSG (voltage divider rather than pull-down resistor plus current-limiting resistor). Those boards have the potential to match a pre-VA7 Genesis Model 1 given the right circuitry.
I'm kind of a sound nerd when it comes to video games so I thought I would contribute this. I made this after reading some in this thread. I recorded the Sonic 2 medley mix in the sound test from both my model 1 and model 2 genesis. I used audio editing software to create a new file with the model 1 representing the left channel and the model 2 representing the right channel. I made sure they started on exactly the same sample so there is no strange phase error. It is interesting to hear the difference. I did my best to normalize the volume of each channel.
Model 1 is a VA6 HDG with a discreet YM2612. Recorded from headphone out.
Model 2 is a VA3 with a 315-5700 ASIC. Recorded via AV cables.
Some interesting differences I noticed:
The model 1 has more electronic noise, which I understand to be the method used to mix the channels of the YM2612. I actually prefer this as I love the sound of electronic music and if I get to hear artifacts of the hardware, it's an added bonus. I may be weird that way! :)
The L and R channels are reversed from one unit to another.
The waveforms that I recorded are inverted from one unit to another. If I didn't flip the waveform, they would have cancelled out. In retrospect I should have saved a combined version of them this way to leave only the differences.
The Casino Night stage music near the end uses white noise and you can tell that it's generated pseudo-randomly since it became stereo in this mix!
https://drive.google.com/file/d/0B7v...it?usp=sharing
This is my first time sharing with Google docs, so let me know if it works for you. File type is ogg vorbis.
This is awesome, you can definitely tell the difference in the systems. If you get a chance, I'd be all for hearing the cancelled waveform mix.
Thanks, I am glad Google drive worked for the file. It sure beats those spammy drop box type sites. I will see what I can do with the wave cancellation technique but I will have to make sure the volumes are extremely accurate.