Re: Crystal Audio Chips.. any fans?

Posted on 2021-04-13, 13:54

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by gdjacobs

in Marvin \ Sound

in Marvin \ Sound

Yeah, but no one seems to have done it despite the claims that one is inferior (which is not my experience..) I only have a CS4289 paired with a CS4232 (the famous Zoltrix card), and I find the FM output harsh and objectionable. Not as bad as CQM, mind you. I never noticed any of the FM clicking …

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Re: Crystal Audio Chips.. any fans?

Posted on 2021-04-12, 20:09

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by gdjacobs

in Marvin \ Sound

in Marvin \ Sound

Also, is there solid proof that this chip's OPL3 is worse than CS4236 anywhere? I hear this parrotted over and over but to me it sounds pretty identical to CS4236? I think Crystal just integrated this into the CS4235, fucked it up then fixed it in CS4236.. Surely there's a way of running through …

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Re: Crystal Audio Chips.. any fans?

Posted on 2021-04-10, 19:43

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by gdjacobs

in Marvin \ Sound

in Marvin \ Sound

4231 has no internal FM at all - maybe the info assumes an external FM chip (so as to have a cs4231+fm "full" WSS compatible card) AFAIK internal FM started with the broken implementation in the CS4235 chip, it was fixed in CS4236 and carried over to CS4237 and CS4238 - beyond these I have no …

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Re: Bought these (retro) hardware today

Posted on 2021-04-10, 19:22

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by gdjacobs

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

bjwil1991 wrote on 2021-04-09, 04:42: Not-so-retro: ASUS A8V-UAYVZ Socket 939 with a CPU of some kind and 4 sticks of RAM (no I/O shield, but it might be easy to find one): ASUS-A8V-UAYVZ.jpg Basis for a Win98 SE ultimate performance monster?

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Re: Replace Low ESR Electrolytic KZJ Cap with a polymer or similar NOS electrolytic ?

Posted on 2021-03-31, 14:48

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by gdjacobs

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

If the capacitors are used in a VRM or step down regulator it´s best practice to raplace them by some similar electrolytic capacitor model of the same type, a very low ESR Aluminium electrolytic with a high temperature range and a similar ripple current at high frequencies. I would use this …

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Re: My Dual Pentium 3 Slot 1

Posted on 2021-03-21, 19:50

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by gdjacobs

in Marvin \ System Specs

in Marvin \ System Specs

Only thing I love more then a slot 1 machine is a dual slot 1 machine :) What OS? and that stick of ram is looking lonely by itself I installed winXP, now I use 4x128Mb for ram and It's working well. Nice! Have you tried NT4? I've got a dual P3 Epox KP6-BS rig. With 1gb of RAM, the level of …

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Re: I recently found this hardware, AKA the Dumpster find thread.

Posted on 2021-03-21, 19:26

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by gdjacobs

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

...because Windows 10 killed itself by wiping the C:/-drive during an upgrade. Perhaps it is becoming self-aware? Back in the day you needed a stupid user or a virus to cause such an event... :D You've got to be kidding me... Didn't something similar happen with 1809? This is why I got sick of it. …

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Re: Bought these (retro) hardware today

Posted on 2021-03-16, 17:37

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by gdjacobs

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Just a friendly reminder that posting ebay links is still frowned upon and I might clean the thread soonish So. Basically, just because it is on eBay, then it is a no-go? As an example. If I posted link to a newly produced Furia020 sold by sordan on eBay, then it would not be alowed. However if I …

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Re: Why are 3Com NICs regarded in such high regard?

Posted on 2021-03-05, 02:46

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by gdjacobs

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

feipoa wrote on 2021-02-14, 16:55: Are you able to test it in Linux using iperf? Seems that when I test stuff in Linux it approaches the transfer spec, e.g. my gigabit ethernet benches around 950 mbit. Did 3Com ever make a gigabit product? They used Marvel/Sysconnect chips for some.

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Re: Bought these (retro) hardware today

Posted on 2021-02-27, 04:16

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by gdjacobs

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Deksor wrote on 2020-10-07, 19:23: @liqmat actually ECS was decent before they bought PCChips in the late 90's. Now you get why they went downhill afterwards ? ^^ It was more the other way around. Hsing Tech, the parent outfit of PC Chips, actually bought a large stake in ECS before merging with …

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Re: Using AT case turbo switch to change the front side bus speed on motherboard

Posted on 2021-02-26, 03:06

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by gdjacobs

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I've used an SPDT turbo switch exactly for this, although it's currently being used to toggle the multiplier. The principle is to toggle one of the jumpers between 1-2 and 2-3. Usually this has to be locked in via a reboot as it's programming a clock generator chip for FSB and setting the internal …

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Re: Possibly crazy idea : using a Raspberry with Jack and something like JackMix to have "create" a software S/PDIF mixe

Posted on 2021-02-19, 08:22

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by gdjacobs

in Marvin \ Sound

in Marvin \ Sound

In the amateur radio VHF/UHF repeater community, the Pi 4 is known to have issues with multiple C-Media dongles connected via USB. Pi 3 has no such problems beyond previously known raw performance limits.

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Re: HardMPU, anyone?

Posted on 2021-01-30, 08:54

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by gdjacobs

in Marvin \ Sound

in Marvin \ Sound

For MIDI synths, it would require an audio circuit, but that's about it. Ideally, it would be available in a nice handy form factor that plugs into a standard pin header. Ideally, most sound card models would have this standard pin header.

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Re: New PS/2 compatible mouse options?

Posted on 2021-01-30, 08:48

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by gdjacobs

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I have a full size Kensington Pro Fit. It's PS/2 compatible via an adapter.

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Re: Sound Blaster 16 Bugs and Deficiencies Summary

Posted on 2021-01-17, 04:12

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by gdjacobs

in Marvin \ Sound

in Marvin \ Sound

Well, darn. It looks like Creative's bad habits started before the Sound Blaster 16. :| I found that the upper half of the quad amp at U11 on a CT1600 Sound Blaster Pro 2 was floating too. https://www.vogons.org/download/file.php?mode=view&id=100390 It's hard to tell but pins 8-10 and 12-14 are …

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Re: Any opration system which runs on an i860 CPU in a 486 system?

Posted on 2021-01-09, 04:23

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by gdjacobs

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Does the x86 CPU transfer control to the i860 then halt until control is handed back?

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Re: Differences between CMI8330A, CMI8330C, and HT1869V?

Posted on 2021-01-08, 15:09

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by gdjacobs

in Marvin \ Sound

in Marvin \ Sound

Well, as far as I know its SPDIF In/Out is 5V and not directly compatible with most audio gear, no? It does not matter. Both TTL and COAX are full-fledged proper S/PDIF. They differ in signal amplitude only. If you have TTL (2-3+ V, often 4-5V) and need COAX you can just use this: https://i.ebayimg …

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Re: MT-32 wavetable daughterboard exist

Posted on 2021-01-05, 03:44

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by gdjacobs

in Marvin \ Sound

in Marvin \ Sound

... a DIY waveblaster daughterboard which seeems to be fully compatible with MT-32 ... See: http://members.home.nl/c.kersten/ It says "And just today two more, very special new boards arrived from the same source: LAPC on a MIDI daughterboard! It must have been especially difficult sourcing those …

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Re: MT-32 wavetable daughterboard exist

Posted on 2020-12-31, 06:08

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by gdjacobs

in Marvin \ Sound

in Marvin \ Sound

Well, I have checked again the video and he is using SoftMPU. Makes sense since Legend of Kyrandia doesn't work with UART mode. Nice to see it works great with 386 SX25. Is MT-32 emulation on GM cards capable of producing proper sound effects? Not completely, although it can be okay when titles …

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Re: MT-32 wavetable daughterboard exist

Posted on 2020-12-30, 19:31

by

by gdjacobs

in Marvin \ Sound

in Marvin \ Sound

Yeah, this could be the same thing. I know for sure it's just plain ISA sound card with MIDI daughterboard only but I have no idea how it looks like or how it works. I just know (thanks to the video) that compatibility is great and that it sounds excellent. Wish I knew more about this product! I'm …

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