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Re: Remove the default Windows folders from the PATH in DOS 7.xx

Posted on 2023-02-27, 17:55

in DOS

in DOS

Yeah, but if possible I want to remove them completely from the path for specific configs. If I decide to boot into windows 98, I can't break MSDOS.SYS. Grzyb's suggestion could work, but there must be a way to bypass that completely. I wonder if that feature/annoyance is built into COMMAND.COM

Remove the default Windows folders from the PATH in DOS 7.xx

Posted on 2023-02-27, 15:46

in DOS

in DOS

Hello. I was wondering if any of you knew how to remove what appears to be autogenerated parts of the PATH pointing to your Windows 9x installation folders? Even if I redefine the path, Windows folders always precede whatever I define. Thanks

Re: ES688 with wavetable add-on vs ENMPU initializer (DOS) - pure silence

Posted on 2023-01-18, 15:25

in Marvin \ Sound

in Marvin \ Sound

Sounds to me like the perfect candidate for a HardMPU add-on.

Re: TSR: Sound Blaster Pro output mode changer (stereo/mono, filter ON/OFF)

Posted on 2023-01-17, 20:48

in Marvin \ Sound

in Marvin \ Sound

Out of curiosity, would it be possible to implement a "Reverse Stereo" hotkey? For games which don't have that option in setup. Or is that functionality something that's dependent on the game's own sound driver? Interestingly enough, just toggling the mono/stereo modes repeatedly can reverse the …

Re: TSR: Sound Blaster Pro output mode changer (stereo/mono, filter ON/OFF)

Posted on 2023-01-16, 00:51

in Marvin \ Sound

in Marvin \ Sound

Thanks for this handy tool! :) Two downsides though: Although it is a very unlikely scenario, there isn't a way to check if the TSR is installed after running the application, meaning that it can be loaded many times until it runs out of conventional memory. The other one is that it can't be …

Re: More soundcard tests for digital audio playback (ESS, CMI, YMF, OPTi and Creative) updated

Posted on 2023-01-16, 00:47

in Marvin \ Sound

in Marvin \ Sound

Added the Orpheus 1 card with the Crystal CS4237B chip. As expected, superbly clean output in both SBP and WSS modes. Like most chips (ESS, OPTi), it uses a variable lowpass filter when playing back digital audio below 44.1kHz to minimize aliasing. It also correctly sets the channels in WSS and SBP …

Re: TSR: Sound Blaster Pro output mode changer (stereo/mono, filter ON/OFF)

Posted on 2023-01-14, 21:39

in Marvin \ Sound

in Marvin \ Sound

Nice work! Thanks for making this utility. BTW, did you ever try turning off the filter on an OPTi or an ESS card? Or is it hardcoded to always stay on there? Thanks Joseph So I ran some more tests and unfortunately the TSR had limited success with different cards. Many do not respect the CT1345 …

TSR: Sound Blaster Pro output mode changer (stereo/mono, filter ON/OFF)

Posted on 2023-01-12, 16:23

in Marvin \ Sound

in Marvin \ Sound

This TSR will allow you to change the output mode of the Sound Blaster Pro card (and compatibles) before and during playback (in games and demos). It assumes the card is set to IO port 220h. The shortcut keys are as follows: F9 = Mono + Filter ON F10 = Stereo + Filter ON F11 = Mono + Filter OFF F12 …

Re: More soundcard tests for digital audio playback (ESS, CMI, YMF, OPTi and Creative) updated

Posted on 2023-01-09, 01:40

in Marvin \ Sound

in Marvin \ Sound

Added the OPTi 82C929A card. This card is even more impressive than the ESS688 as it has a genuine Yamaha OPL3 synth (like the ESS688) but adds Windows Sound System support.

Re: More soundcard tests for digital audio playback (ESS, CMI, YMF and Creative)

Posted on 2023-01-06, 20:47

in Marvin \ Sound

in Marvin \ Sound

Another thing, enabling the stereo DAC doesn't necessarily disable the low-pass filter as you described. Due to the lack of a proper low-level documentation for Sound Blaster cards at the time, many developers weren't aware the bit values used for toggling the output filter and the stereo DAC were …

Re: More soundcard tests for digital audio playback (ESS, CMI, YMF and Creative)

Posted on 2023-01-06, 20:42

in Marvin \ Sound

in Marvin \ Sound

WSS could technically go up to 48 KHz so it might sound a bit cleaner than 44.1 KHz cards in certain cases. I remember Turrican 2 being one of the rare DOS games which actually allows you to pick that sampling rate in setup, when using a WSS compatible card. Out of curiosity, does your YMF719 card …

More soundcard tests for digital audio playback (ESS, CMI, YMF, OPTi and Creative) updated

Posted on 2023-01-06, 19:43

in Marvin \ Sound

in Marvin \ Sound

20230108_202817~01.jpg Had some spare time to run some testing on my bench setup to test the sound quality and quality of emulation of various soundcards in my bins. In the tests we have: Creative Sound Blaster Pro 2.0 CT1600 ESS AudioDrive ESS688 on a Compaq card assy 004198-001 CMI8330 on the …

Re: MK8330 : new soundcard based on the CMI 8330 chipset

Posted on 2023-01-04, 17:17

in Marvin \ Sound

in Marvin \ Sound

I have made a video of the issue I face. You can skip to 0:44 in the video to get to the actual problem. https://youtu.be/DVCmx0Sj65M Let me know if this is unique to my current setup/card or is this a known issue or limitation of the CMI8330. Thank you Note: I want to be clear; this card was …

Re: MK8330 : new soundcard based on the CMI 8330 chipset

Posted on 2022-12-29, 13:00

in Marvin \ Sound

in Marvin \ Sound

Got my MK8330 a while back but only just now had a chance to use it. On paper it is the perfect card. One thing I'm not in love with is the complete lack of lowpass filtering when emulating an SB(Pro). The other issue, and is definitely more problematic for me is that in some apps and demos, in …

Video ghosting blurriness and dark video output

Posted on 2022-01-24, 02:28

in Marvin \ Video

in Marvin \ Video

I'm having an issue with an Nvidia GeForce GTS I acquired. The card appears to work just fine with the exception of VGA output. The problems in short are: - Ghosting - Dim luminance, excessive saturation - Diagonal banding in graphics modes The card does not have any visible damage, and does not …

Re: What is it with Win95/98 killing my CF cards?

Posted on 2020-03-09, 15:35

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Maybe its a problem with the on-board IDE controller, or how windows 98 is using the swapfile. How much RAM do you have?

Re: Issues with ESS ES1869

Posted on 2019-11-13, 16:47

in Marvin \ Sound

in Marvin \ Sound

Very odd problem. If you want a manual configuration, I would suggest reserving IRQs 5 and 7 for ISA (non PnP) and DMA 1. Try and use the ESSCFG utility again with manually configured parameters. The other BIOS options should have very little if any effect, but you should still keep the PnP OS …

Re: Biostar 8433UUD won't post

Posted on 2019-11-06, 21:16

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I'd quadruple check the CPU jumpers and cache jumpers. Any chance you can try a different CPU?

Re: New sound card project: AWE64 Legacy

Posted on 2019-11-06, 02:07

in Marvin \ Sound

in Marvin \ Sound

Is it compatible with a Sound Blaster Pro 2.0 in Stereo for PCM sound, or is that a hardware limitation of the Creative chips?

Re: DOS + Yamaha YMF724 on an HP T5740 thin client

Posted on 2019-11-05, 19:56

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Love it. Native XP driver for the video? If so, this could be great silent retro PC for older games. Can it run MUNT without slowing down too much?

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