Hi Im new here, does anyone know how to do a stereo audio mod on the pgm?
We discuss a bit here but the games are not in stereo, at least the ones we looked at. Do you know any that have stereo?
IGS PGM Cart PCB Scans (And Projects)
if we end up figuring out how to separate audio channels either in the audio file or the processor I think it’ll show up here though.
Was searching for information in regards to the modification and if necessary considering games are not in stereo. Thanks ekors for the link ill keep and eye out
I started to disassemble the z80 audio driver, but got distracted by other things...
One relatively easy option would be to hard code a left/right position for each channel, similar to the default settings for a MOD tracker. Adding 2D position for gameplay elements is a bigger job.
The stereo mod is redundant. None of the games are in stereo. It’s like modding a Pacman PCB to play in THX.
Multis: CPS-1, CPS-2, CPS-3, F3, S16, ST-V, MVS, AES, M72, Crystal System, G-Net, Naomi, TTX2
Screens: 2043MD, 20M2MDA, 20L2MD, AR25M31, XR29M31, BL2411PT, BL2700HT
Devices: Sentinel Gold / Ultracade uVC / JAMMAizer! / Framemeister XRGB-mini
PCBs: VAPS Profile
Well... if you have stereo you can maybe do Surround. With more voices and some control over phase shift you should be able to do Pro Logic...
But I agree, without patches (or homebrew) there is little point to it.
(Edit: Though I guess if you want to run sound through your own amplifier instead of going through the JAMMA connector it doesn't hurt to get the stereo signal...)
The post was edited 1 time, last by Fluffy ().
I came up with this:
Is it overkill? Yes, of course. Will it sound any better? No, of course not. Is it faster to install? No, of course not.
The only advantage is that is looks a bit neater and reduces mechanical stress on the solder joints. I still have to actually measure the signal level to see if it is worth it. I may order this with my next PCB order, though...