VOGONS

Search

Common searches

Search results

Display options

Display options

Re: Sonic Buster 8: A new 8-bit ISA sound card

Posted on 2024-04-17, 20:14

in Marvin \ Sound
I think the simplest solution to try it out is to use a dedicated atmega328 just for the FIFO. It receives OPL3 command at bus speed, puts it into 2k RAM queue, and then sends it out to OPL3 when time comes by controlling OPL3 pins with appropriate timings. 2k will be more than enough for that, …

Re: Sonic Buster 8: A new 8-bit ISA sound card

Posted on 2024-04-17, 14:38

in Marvin \ Sound
There was a slight unexpected delay in SB8 development, but now I'm back in the lab The prototype so far looks like this and still work in progress: IMG_37262.jpg Overall it worked fine, but had problems running Wolf 3D on <486 machines. After some timing corrections in the hardware and rewriting …

Re: Sonic Buster 8: A new 8-bit ISA sound card

Posted on 2023-07-21, 11:01

in Marvin \ Sound
.. I can confirm the behaviour you described.. ..AT2 playback is busted without opl_latency=1 in the .ini.. Thanks a lot, guys! Was worried it is a problem of my design. I wish asking you earlier :) Most likely AT2 is configured by default for using it with a DosBox - without any internal software …

Re: Sonic Buster 8: A new 8-bit ISA sound card

Posted on 2023-07-20, 13:41

in Marvin \ Sound
appiah4 wrote on 2023-07-20, 12:15: ..play without a hitch on my ES688/OPL3 sound card.. most probably this is the answer, however if you could please test CT1740 or CT2800 to be sure? appiah4 wrote on 2023-07-20, 12:15: I will double check tonight though. thanks, man

Re: Sonic Buster 8: A new 8-bit ISA sound card

Posted on 2023-07-20, 11:34

in Marvin \ Sound
Hello there! I wonder if anyone with a real OPL3 & DOS & cpu>=486 can tell if Adlib Tracker II needs an opl_latency=1 option to play correctly? I bumped into a problem that OPL3-enabled games I tested (WAR2, Descent, Blood,... ) are all ok, but AT2 plays rubbish if opl_latency is set to 0 (default) …

Re: Sonic Buster 8: A new 8-bit ISA sound card

Posted on 2023-07-20, 09:59

in Marvin \ Sound
..Colani 486SX with a OPL3 on a Jazz16 board.. That would be great, if you'll be able to run it on a 486SX. My attempt was unlucky on ICL ValuePlus 486SX/8Mb RAM - it detected the OPL3, but hanged before entering the UI. The manual mentions a 386DX as a minimum req, so I guess it is co-proc issue. …

Re: Sonic Buster 8: A new 8-bit ISA sound card

Posted on 2023-07-20, 09:18

in Marvin \ Sound
Hello there! I wonder if anyone with a real OPL3 & DOS & cpu>=486 can tell if Adlib Tracker II needs an opl_latency=1 option to play correctly? I bumped into a problem that OPL3-enabled games I tested (WAR2, Descent, Blood,... ) are all ok, but AT2 plays rubbish if opl_latency is set to 0 (default) …

Re: Sonic Buster 8: A new 8-bit ISA sound card

Posted on 2023-07-01, 16:33

in Marvin \ Sound
Thanks for your input, shevalier ! I'm actually quite happy with current design with -95dB RMS noise floor which is more than enough for sound sources of such fidelity to consider the audio output as "dead quiet". However at the early stage of designing Blasterboard I already tried almost everything …

Re: Sonic Buster 8: Work in progress...

Posted on 2023-06-30, 18:27

in Marvin \ Sound
Needs some practice though to grip it well for a good contact in the center :) Making a perimeter using same thickness PCBs is exactly what I am doing, I tape them down to the desk so they cannot move and then I tape the stencil on them once it is perfectly aligned and then I do the swipe, with …

Re: Sonic Buster 8: Work in progress...

Posted on 2023-06-30, 12:49

in Marvin \ Sound
Large stencil is good, I pretty much always order full size for the important things... the ones cut to small size are often bent out of shape so much that they're hard to get good pasting with :/ Welcome to the world of meat based pick & placing lol (beats cutting and bending pins and hand …

Page 1 of 12

Go to top of page Go to top of page
Close window
Close window