Re: Not so crazy idea : using a Raspberry Pi 4 with jackd , Zita A2J bridge and jack_mixer to make a software S/PDIF mix

Posted on 2021-08-04, 14:31

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by gdjacobs

in Marvin \ Sound

in Marvin \ Sound

darry wrote on 2021-08-04, 01:17: If operating in non-duplex mode (only recording OR playing back), there are no issues with pw-jack, I get the same results as with ordinary jack or zita . This sounds fishy. Worth trying with different host and/or USB sound hardware?

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Re: Not so crazy idea : using a Raspberry Pi 4 with jackd , Zita A2J bridge and jack_mixer to make a software S/PDIF mix

Posted on 2021-08-03, 21:42

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by gdjacobs

in Marvin \ Sound

in Marvin \ Sound

I've been using Pipewire for a little while now with good results. It simplifies handling of multiple audio devices and can be managed with JACK routing tools, so it would be particularly useful for this project.

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Re: A "broad spectrum" 90s build?

Posted on 2021-07-21, 18:07

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by gdjacobs

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

All right, I'mma list a bunch of cheap-ish stuff I found: ... Pretty please pick ~3 of them. I'd prefer ones that do DOS as good as the do W9x, but DOS is primary here, as I can (should I?) get some 5.1 Live! for W9x exclusively. Plus I already have that AV511 CM8738, which as I noticed by Vogons …

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Re: PCI OPL3 sound cards

Posted on 2021-07-17, 00:40

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by gdjacobs

in Marvin \ Sound

in Marvin \ Sound

ALS4000 based cards have a close OPL3 clone.

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Re: A "broad spectrum" 90s build?

Posted on 2021-07-16, 15:16

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by gdjacobs

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Can you give me some ESS full name examples, I'm not familiar with them. Lots of names. ESS chips were used by a lot of small board manufacturers. You can search them under ePay by the chip identifiers. i.e. ES1868, ES1869, etc. Gerwin has a file that's a good resource to start with. Use his link …

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Re: A "broad spectrum" 90s build?

Posted on 2021-07-16, 00:40

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by gdjacobs

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Can you recommend one that is readily available/inexpensive/simply gets the job done, nothing more, nothing fancy. Yamaha YMF. Sound Blaster 16 Value SB AWE64 Value Various ESS cards 1) Real OPL3, good compatibility, slightly funky OEM drivers. You can use SETYMF or UNISOUND , although I have not …

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Re: A "broad spectrum" 90s build?

Posted on 2021-07-15, 00:54

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by gdjacobs

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

P3 can be slowed down by disabling cache. I guess flexibility is nice but I don't get why some people insist on having complete control over CPU speed, isn't 'very slow' and 'full speed' enough? I guess there are some games that require a specific faster speed, like some Wing Commander or Ultima …

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Re: A "broad spectrum" 90s build?

Posted on 2021-07-14, 10:02

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by gdjacobs

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

People, thanks A LOT for the input, all of you! I do have A LOT of questions now: - Since I need a Voodoo card for Glide, do I need a GPU for DX/GL, aka does Voodoo do these proper and fast ? - For those recommending PIII builds, why ISA? Wasn't ISA replaced by PCI and AGP by then? - Why recommend …

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Re: A "broad spectrum" 90s build?

Posted on 2021-07-13, 17:00

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by gdjacobs

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

For something different, you can pair your BX board with a VIA C3 Ezra.

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Re: Small scale amplifiers or powered mixer for PC usage?

Posted on 2021-06-26, 22:20

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by gdjacobs

in Marvin \ Sound

in Marvin \ Sound

Shreddoc wrote on 2021-06-24, 21:02: Incidentally, what's the difference between boards stating vanilla 3116 and boards stating 3116D2 ? anyone know? or are they the same thing? Pretty much all such amps I've found are TPA3116D2 based. TI has two products listed -- one being a standard part and the …

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Re: Small scale amplifiers or powered mixer for PC usage?

Posted on 2021-06-24, 19:03

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by gdjacobs

in Marvin \ Sound

in Marvin \ Sound

Thanks, that sounds fairly definitive. Not sure I'd go that far. There might be something out there that will work for you. Some options turned up on Alibaba, FWIW, when I was searching, but then they have everything, including some products I suspect don't actually exist. All the amplified mixers …

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Re: Small scale amplifiers or powered mixer for PC usage?

Posted on 2021-06-20, 11:30

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by gdjacobs

in Marvin \ Sound

in Marvin \ Sound

In an ideal world I'd want a, I believe they're called "powered mixer", whose output could power such speakers without the irritating need for a separate amplifier module, and which would double as the ubiquitous Mixer For Our PC that so many of us seem to require, to deal with our various MIDI …

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Re: Two Power Supplies, One Motherboard?

Posted on 2021-06-09, 01:49

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by gdjacobs

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

There are methods used to parallel two DC supplies. https://techweb.rohm.com/knowledge/dcdc/dcdc-ldo/dcdc-ldo01/9235 Which is to say it can be done but isn't necessarily as straight forward as you hope. And in more high end environments there are diode modules like this: https://www.phoenixcontact. …

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Re: Two Power Supplies, One Motherboard?

Posted on 2021-06-07, 01:45

by

by gdjacobs

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

There are methods used to parallel two DC supplies. https://techweb.rohm.com/knowledge/dcdc/dcdc- … dcdc-ldo01/9235 Which is to say it can be done but isn't necessarily as straight forward as you hope.

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Re: Recommended PSU for loaded P3 Build

Posted on 2021-05-11, 19:40

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by gdjacobs

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I wonder how good/bad current chinese caps are . Are we still in capacitor plague territory or has the bar been raised somewhat ? I mean, there are probably decent chinese caps on the market and would imagine that Delta (and likely other reputable manufacturers) have a selection/testing process …

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Re: Recommended PSU for loaded P3 Build

Posted on 2021-05-11, 00:26

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by gdjacobs

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I found this among my random parts, with 5 more amps than the Antec that died. Maybe it will last until I can find some 40 amp PSUs: The Delta will be enough to run two of those builds. Coppermine chips are not very power hungry, and Delta has some of the best engineering and build quality in the …

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Re: Pentium 133 DOS gamer dream machine (1995/97 ).

Posted on 2021-04-30, 23:07

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by gdjacobs

in Marvin \ System Specs

in Marvin \ System Specs

True... The P55 scales perfect within what it can do. However K6-III+ gives wider performance spectrum. It is like the P55 and then some more, when running full speed. Basically both can do, if you wish to go pre-pentium and Pentium. However for high res Pentium era Dos gaming. Well... Then the K6- …

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Re: SB16 issues

Posted on 2021-04-30, 20:33

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by gdjacobs

in Marvin \ Sound

in Marvin \ Sound

The analog section of the sound blaster 16 cards require +12V from the ISA bus. If the connector from the AT power supply to the mainboard makes bad contact on the +12V line, this might cause issues like you describe. Try re-seating the power supply connector. I think you mean - 12V because if it …

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Re: Pentium 133 DOS gamer dream machine (1995/97 ).

Posted on 2021-04-30, 20:27

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by gdjacobs

in Marvin \ System Specs

in Marvin \ System Specs

I have to say that “If you want a good DOS computer that can run at 386 and 486 speeds and maybe even 286 speeds” this is the CPU you want. Allows you to play old DOS games and modern DOS games in good performance. Also it’s NOT expensive to build. If I could only have just one DOS computer this …

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Re: Modern PSUs with enough +5v amps for PIII rigs?

Posted on 2021-04-25, 19:56

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by gdjacobs

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hey guys, I searched around a little bit to see if we already had a thread of recommended modern power supplies for these old platforms but didn't come up with anything. I understand that pre-Pentium 4 era, load was mainly on the +5v rail vs the shift to almost entirely on the +12v rail that we …

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