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Re: Audio mixer recommendations

Posted on 2018-07-21, 13:57

in Marvin \ Sound
You probably need a line mixer like https://www.sweetwater.com/store/detail/LX308 … 308b-line-mixer or http://tascam.com/product/lm-8st/ Cheaper: https://www.sweetwater.com/store/detail/Multi … ereo-line-mixer

Re: MPU-401, General MIDI and WaveBlaster programming

Posted on 2018-07-17, 22:27

in Marvin \ Sound
Doom-engine's DMX sound library has a similar bug. When it writes DMA buf length to Sound Blaster's DSP it should issue command 0x48 followed by 2 bytes of length, but it does not poll status byte before writing 2nd byte and issues it immediately after the 1st, so it is lost if DSP is not ready to …

BLASTERBOARD : A new SB 2.0-compatible ISA sound card

Posted on 2018-07-08, 22:30

in Marvin \ Sound
New revision G cards/kits are in stock! Blasterboard is an ISA sound card with open-source firmware (AVR Atmega) and is software-compatible with Creative Sound Blaster 2.0. It can play 8-bit mono PCM/ADPCM samples (up to 62500 Hz), FM music via OPL2 chip and has CD/Line and PC-Speaker inputs. Each …

Re: Sound Blaster 2.0 project & IRQ from OPL2

Posted on 2018-06-21, 11:55

in Marvin \ Sound
Ok, looks hardcore DIY, but the DAC prototype is finally assembled and connected to OPL2/ISA part. Will do the tests today. The project is called BlasterBoard 2.0 (SoundBlaster + ThunderBoard + 2.0 DSP support) :cool: I decided to add a crossfader between DAC and OPL2 signals (pot on the top left of …

Re: Sound Blaster 2.0 project & IRQ from OPL2

Posted on 2018-06-13, 14:25

in Marvin \ Sound
Recently I started to assemble the DAC part on a breadboard (I know it looks messy). The digital part has 13 ICs in total - MCU, DAC, 2x registers, 1x buffer, 2x D-triggers, and the rest used for address decoding and internal logic. I made wire harness to connect it with Adlib part. First thing to …

Re: Searching for SSDK and LSDK fro ARIA 16

Posted on 2018-06-11, 12:43

in Marvin \ Sound
On another note, I am still looking for the v1.97 driver set. I saw reference to it in an old old forum post, but there is no link to download it and the forum post on the internet archive lists it out as just a bunch of text. Don't know which driver you are talking about, but I meant open source …

Re: Searching for SSDK and LSDK fro ARIA 16

Posted on 2018-06-10, 21:21

in Marvin \ Sound
From Tauritz's FAQ on ARIA: Appendix D: How to contact Aria soundcard manufacturers Diamond Computer Systems, Inc. 1130 East Arques Avenue Sunnyvale, CA 94086, U.S.A. Phone: +1-408-325-7000 Fax : +1-408-730-5750 WWW : http://www.diamondmm.com/ They are still on-line, maybe they could have something? …

Re: Sound Blaster 2.0 project & IRQ from OPL2

Posted on 2018-06-10, 17:04

in Marvin \ Sound
If I'm not mistaken, the original Ad Lib card didn't make use of the interrupt pin. The officially-documented detection method involved setting an OPL2 timer, then polling the status register to see if the timer had expired. The MSC was a relatively simple design. Yes, guys, you are right. I was …

Re: Sound Blaster 2.0 project & IRQ from OPL2

Posted on 2018-06-08, 08:47

in Marvin \ Sound
Cool project! Just looked at my CT1320C and CT1350B and pin 2 of the YM3812 is not connected to anything. Ufff... Thank you, cyclone3d! Well, the digital part is done then)) Also the Thunder Board DSP commands ? ;) Thunderboard was a decent SB 1.x/2.0 clone, but also had few extra DSP commands. …

Sound Blaster 2.0 project & IRQ from OPL2

Posted on 2018-06-07, 22:35

in Marvin \ Sound
Hello there! I'm currently working on a Sound Blaster 2.0-compatible ISA card based on Atmega MCU. My goal is to completely implement original SB's playback functionality using modern, available and better sounding parts (like DAC, op-amps, film capacitors, etc). I only keep genuine YM3812 FM synth …

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