Re: Lets improve DOSBox Sound Blaster emulation

Posted on 2020-01-09, 07:30

by

by James-F

in DOSBox Development

in DOSBox Development

Yes, SB16 has a modern "brickwall" filtering with very high amount of taps, which most modern CD players, sound cards, and software media players use to this day to prevent aliasing when playing lower sampling rate files. The SBpro2 (and older) have a super simple analog (Resistors+Caps) 2nd order …

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Re: Lets improve DOSBox Sound Blaster emulation

Posted on 2020-01-09, 07:04

by

by James-F

in DOSBox Development

in DOSBox Development

I used the WinFilter tool with DOSBox 49716 sampling rate and generated a SBPro2 frequency response and exported it as DOSBoxIIR.c. I lack the programming skills but if anyone can make a test build that passes the PCM audio (only) using this .c file I can measure it and compare to real SBPro2. note: …

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Re: Lets improve DOSBox Sound Blaster emulation

Posted on 2020-01-09, 06:43

by

by James-F

in DOSBox Development

in DOSBox Development

It saddens me that DOSBox in 2020 still doesn't have a proper lowpass filtering emulation to sound like original DOS era sound cards. DOSBox sounds shrill with a lot of high frequencies in comparison to a good old DOS era SB card. The SBPro2 (best DOS sound card imo) for example Is a very simple 2nd …

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Re: FM and PCM Volume Balance of SB Cards

Posted on 2020-01-09, 06:27

by

by James-F

in Marvin \ Sound

in Marvin \ Sound

Sound Card Lowpass Filtering Measurement To measure lowpass filtering of any sound card you can use Mpxplay for DOS ( link , also attached) with the attached Test WAV package to play white noise and capture with spectrum analyzer. You can also use Wolfenstein 3D rifle PCM sound (weapons 3 and 4) to …

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Re: New forum suggestions/Feedback

Posted on 2020-01-05, 16:04

by

by James-F

in Milliways

in Milliways

Saturation has a direct affect on apparent contrast.

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Re: New forum suggestions/Feedback

Posted on 2020-01-05, 14:11

by

by James-F

in Milliways

in Milliways

VileR wrote on 2020-01-05, 12:32: reasons for avoiding very saturated colors as site backgrounds - some examples... Thank you! I lowered saturation on every color to 30 instead 59. Still retains the purple theme, but does not assault the eyes. Filename test1.png File size 89.57 KiB Views 1961 views …

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Re: Welcome to the updated VOGONS

Posted on 2020-01-04, 05:27

by

by James-F

in Milliways

in Milliways

I don't think the massive amount of complaint is from an inability to accept changes, change is welcome when it is good and functioning properly. The amount of complaint is because the result actually is eye straining, and does not look or function like the majority of other forum boards. This new …

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Re: Welcome to the updated VOGONS

Posted on 2020-01-03, 13:47

by

by James-F

in Milliways

in Milliways

that's why there is a need for pixel-perfect fonts imho, and there are plenty out there. Our eyes are least sensitive to blue/purple short wavelength, and with the eye straining crooked font.... the perfect recipe for a headache, Thanks! Nobody is using high DPI screens to browse Vogons... this is …

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Re: Welcome to the updated VOGONS

Posted on 2019-12-31, 05:53

by

by James-F

in Milliways

in Milliways

The whole internet still uses phpBB forum boards,, I'm sorry but our boards is just ugly and barely readable. Anyway, I will use what is given, but In my view the change was not for the better.

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Re: Welcome to the updated VOGONS

Posted on 2019-12-31, 05:39

by

by James-F

in Milliways

in Milliways

Notice the font in that image of three different forum boards, it is even and very readable, no surprise most forum boards use that font. Can't we use this kind of font? fonts.png I am sorry, but the new Vogons doesn't look like a forum board, but like a phone app, disappointing really. Huge buttons …

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Re: Welcome to the updated VOGONS

Posted on 2019-12-31, 05:07

by

by James-F

in Milliways

in Milliways

So everyone likes the "oldschool " style,,, this ugly deep purple going to stay? Also, something is very wrong with the font, each letter changes line thickness. Moreover, old vogons background colors are "153,153,204" and "165,165,216", soyou got the lighter background color wrong in the oldschool …

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Re: Orpheus Soundcard: a new DOS soundcard with SPDIF/OPL3/MPU support

Posted on 2019-12-30, 05:36

by

by James-F

in Marvin \ Sound

in Marvin \ Sound

To test stereo reverse issue: Duke Nukem 3D has a sound test in setup.exe, Left and Right should be CORRECT when choosing SBPro as the sound card in that setup. This thread (go to summary): https://www.vogons.org/viewtopic.php?f=46&t=50539 Balance between PCM and FM: Record Prince of Persia 2 and …

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Re: Welcome to the updated VOGONS

Posted on 2019-12-29, 13:39

by

by James-F

in Milliways

in Milliways

Okay now I view the new format on my day to day monitor..... nope, I don't like it. It's too dark... and too purple. Also, the general "phone friendly" layout, font size, buttons, etc... I'm gonna puke. 🤢 #notmyvogons test test The old Vogons needed one thing, change the brown font color to …

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Re: Welcome to the updated VOGONS

Posted on 2019-12-29, 10:00

by

by James-F

in Milliways

in Milliways

Cool! (no pun intended) Much more readable than the old brown font on brown backgroung.

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Re: New sound card project: AWE64 Legacy

Posted on 2019-12-26, 07:37

by

by James-F

in Marvin \ Sound

in Marvin \ Sound

I don't think salvaging the original chip is a good idea either. AWE64 prices on ebay will sky rocket because of this,, and they are not infinite. I mean look on eBay. Why is he selling it in that price? It's a new half baked product, not a vintage hard to obtain period correct card. The point of …

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Re: Orpheus Soundcard: a new DOS soundcard with SPDIF/OPL3/MPU support

Posted on 2019-12-26, 07:26

by

by James-F

in Marvin \ Sound

in Marvin \ Sound

Hi Keropi. Here are a few bullet points I test with clone SBPro2 cards: Balance between PCM and FM (OPL3). Lowpass Filtering. Stereo flip, Correct L/R panning, Mono switch. Mixer steps behavior. In my testing a 'good' clone will pass all these tests,, everything else is a bonus. Same thing applies …

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Re: T-04YBSC-A, new YMF71x based sound card + SETYMF utility

Posted on 2019-08-04, 10:00

by

by James-F

in Marvin \ Sound

in Marvin \ Sound

Hi Tiido. Does your card fix the mixer problem described here?: Yamaha YMF71x SB Pro Mixer Bug Issue Fix Also, does it have a proper lowpass filter like the SBPro2 CT1600? Since Yamaha YMF71x based cards usually don't have the proper value caps to match the LPF on the CT1600.

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Re: Gotek like Optical Driver Emulator - Is it possible?

Posted on 2019-08-01, 09:20

by

by James-F

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

https://shop.tattiebogle.net/product/prod_EkTnv3Tk2Trxhf This is a very much needed device. But 200$ is crazy talk.

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Re: Ancient DOS Games Webshow

Posted on 2019-07-20, 13:50

by

by James-F

in Release Announcements

in Release Announcements

Thank you Gemini000 ! I'm still watching your videos, an excellent show for DOS games lovers.

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Re: Heads Up: Roland Sound Canvas VA VSTi Plugin!

Posted on 2019-05-21, 09:42

by

by James-F

in Marvin \ Sound

in Marvin \ Sound

In the same link you can head Duke Nukem 3D - Intro. Original SC-55 has different kick and ride cymbal sound than all the sc55 maps. As of now, nothing perfectly matches the real SC-55. But if you are not very anal to the last detail, SC-VA has a huge value and is the closest we ever got with …

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