Re: Modern GPU with VGA for CRT
Posted on Yesterday, 22:32
The later cards with VGA use a DP or HDMI to VGA conversion chip and are subject to ~165MHz limit, so no high resolutions and/or refresh rates from those VGA ports.
Re: Jumperless, non-PnP ISA sound cards and Windows 95 hardware detection problem
Posted on Yesterday, 09:16
Awesome ~
Re: Jumperless, non-PnP ISA sound cards and Windows 95 hardware detection problem
Posted on Yesterday, 09:02
You need to select the "OPL3-SA Legacy Board" and not the "Sound Controller", which is a subcomponent of the whole chip. Legacy Board should install all the different subcomponents automatically.
Re: Jumperless, non-PnP ISA sound cards and Windows 95 hardware detection problem
Posted on Yesterday, 08:35
This isn't quite the right way, the Sound Blaster it found should be wholly ignored, it is the SBpro component of the card which DOS games would be using but the WSS side that gives 16bit sound is still missing. Instead of making windows look for hardware you choose "select hardware manually", and …
Re: Jumperless, non-PnP ISA sound cards and Windows 95 hardware detection problem
Posted on Yesterday, 06:43
Because this card is not PnP, automatic detection in "add new hardware" wizard will not do much. The driver installer should have set up stuff automatically, but since it didn't you have to go to actual Add hardware and manually select INF in the installation directory of the driver package. Ideally …
Re: Jumperless, non-PnP ISA sound cards and Windows 95 hardware detection problem
Posted on 2024-05-12, 17:20
There is no presistent storage on the card where settings get stored by SETUPSA or any other conf util. You're supposed to run SETUPSA every time on boot of the computer, although Yamaha's Win95 driver should work even without doing that. That driver package should also do any setup necessary for …
Re: Roland MT-120
Posted on 2024-05-12, 12:17
6379 is the lowest cost version, and its main issue is both channels use same VREF internally and it increases stereo crosstalk and distortion a little. 6376 and 63200 also have separate analog and digital power rails which helps to improve performance even more compared to 6379.
Re: Roland MT-120
Posted on 2024-05-12, 00:05
The format which Roland and many japanese things in general outputs is Left Justified which, unlike I2S and Right Justified (LSB aligned), requires receiving side to explicitly know how many bits is transferred or you get messed up output since bits are actually misaligned and all zero crossings get …
Re: ECS UC4914-G - Requesting GAL chip dump
Posted on 2024-05-09, 16:05
I found my board and it is UC4913 rev2.0, similar layout and same UMC chipset but no PLD between ISA slots or anywhere else so, unfortunately, no luck factor this time 😒 Capacitors on it are 4.7µF for the most part, but there are few 10µF ones too.
Re: ECS UC4914-G - Requesting GAL chip dump
Posted on 2024-05-08, 22:26
I might actually have this board, although I am not 100% sure. I have definitely a UC41xx that has very similar layout. I will try to locate it tomorrow and if we are all lucky, it actually doesn't have the protection bit set and any bruteforcing is unnecessary. Gravis cards, for example are using …
Re: MDR-401x and MT 32: No sound.
Posted on 2024-05-08, 18:29
Ok, then the problem is definitely on the MDR side but what exactly I am unsure of. Games do recognize MPU401 interface and not error out when you try the MDR ?
Re: MDR-401x and MT 32: No sound.
Posted on 2024-05-08, 12:06
Do you get sound from the MT32 when it is connected to SB16 ? Any game capable of outputting MIDI will be able to make it do at least some sounds. If it doesn't react then it is possible that your MT32 has a fault in it, perhaps cracked solder on MIDI input port.
Re: Faulty Roland RAP-10 Repair Help Needed
Posted on 2024-05-07, 19:17
Jaa, scope will reveal all the secrets.
Re: Faulty Roland RAP-10 Repair Help Needed
Posted on 2024-05-06, 13:42
Since there was some sound the problem is going to lie in the sea of capacitors and 8 pin chips (the analog area). It is possible some passives don't connect, and perhaps cause something like a missing reference voltage or a power rail... EDIT: other option is that vinegar bath was not done and …
Re: Demand for a new Sega Genesis/Mega Drive game
Posted on 2024-05-03, 11:42
I'm only here because Keropi showed this thread lol. I don't end up on this part of these forums very often on my own... Nowdays people use a tracker called Furnace and music is often done by VGM conversion to a format called XGM that SGDK supports. I don't really know what the situation about sound …
Re: OPN music on an ISA sound card?
Posted on 2024-05-03, 05:04
Just PCM will take a little bit of effort to construct a buffer for SB to play out of singular PCM byte writes, but much less than emulating entire YM. I think the harder part is actually making sure the sound sources stay in synchronity without obviously noticable delays compared to one another, …
Re: Demand for a new Sega Genesis/Mega Drive game
Posted on 2024-05-03, 05:00
I'm intimately familiar with how the sound works on MD, having made music and tools for this purpose for the machine in 2007...2010 or so timespan lol. If you encounter a TmEE somewhere on the old forums, that is me lol. You can find music people from places like "Battle of the Bits", which is …
Re: Demand for a new Sega Genesis/Mega Drive game
Posted on 2024-05-02, 20:35
As long as it plays well there will be people who want it. I definitely don't mind seeing new games although I don't play much anymore and in many cases the real deciding factor will be quality of the music since I spend a lot of time in sound tests of the games that have one or just listening the …
Re: Roland RA-50 Mod
Posted on 2024-05-02, 07:43
That 256Kbit / 32KByte SRAM is the working memory of the CPU, nothing out the ordinary here since all LA32 hardware except the first generation MT32 have this much in this same way. EDIT: But there is room for device specific conf, I see some wire links next to the gate array chip : R68A, R69A and …
Re: Roland RA-50 Mod
Posted on 2024-05-02, 05:38
So VPP is important for this particular EPROM. The rest is strange though, I would have expected things to just work. LAPC-I program ROM is worth to try too, it has same general hardware.
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