Reversing the Disney Sound Source

Discussion about old sound cards, MIDI devices and sound related accessories.

Re: Reversing the Disney Sound Source

Postby matze79 » 2018-9-26 @ 16:17

full hardware implentation ?

i don't mind using a tool for switching modes, but a simple switch on the pcb would be ok too.
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Re: Reversing the Disney Sound Source

Postby Paralel » 2018-9-26 @ 17:59

I'm partial to hardware switches.
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Re: Reversing the Disney Sound Source

Postby shock__ » 2018-9-27 @ 22:59

Current proposal for the new revision:
dss_redesign.png


Also decided that software switching may not be the smartest move, when one intents to use the covox/dss on a non-pc system or a system with a bad implementation of the LPT port.
Since the device has to be powered at all times, I might also add a small amp + potentiometer so one doesn't fully rely on active speakers (personally I packed mine away and stick with headphones these days). Alternatively I could also implement a "stereo-on-1" mode (using pin 1/14 for switching channels) even tho I haven't fully decided on the implementation yet ("dual mono" would most likely end up becoming a "mono on left" which is meh).
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Re: Reversing the Disney Sound Source

Postby matze79 » 2018-9-29 @ 11:01

looks good, is this already tested ?
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Re: Reversing the Disney Sound Source

Postby shock__ » 2018-9-29 @ 21:35

Yup ... tested with the board you sent me + a ton of wires ;) Except for the LEDs ... but I don't see how I could fuck that up.
Layout itself is untested and may not be final (working on my project for the VCFB currently which has high priority). Also considering to add a switch for "dual mono" and "full stereo/mono on left" modes
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Re: Reversing the Disney Sound Source

Postby matze79 » 2018-10-01 @ 10:08

What about adding a 7528 instead of a 24 ? allowing for stereo on 1 too :)
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Re: Reversing the Disney Sound Source

Postby shock__ » 2018-10-01 @ 17:24

That would be the idea if I can get the mono/stereo-mixing right.
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Re: Reversing the Disney Sound Source

Postby MrSmiley381 » 2019-1-21 @ 15:53

I read through this thread and I'm glad to see more efforts to clone more gear at the hardware level versus software workarounds. Are there any games that actually use Stereo-on-2 for DSS/CST? Also, would this intermediary board/combined unit have any issues with the pin 12-to-17 mod for FTL Sound Adapter support?
I spend my days fighting with clunky software so I can afford to spend my evenings fighting with clunky hardware.
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Re: Reversing the Disney Sound Source

Postby matze79 » 2019-3-31 @ 17:31

You won`t need to solder the Bridge for FTL Sound Adapter, Dungeon Master supports DSS and Sound is exactly the same.
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Re: Reversing the Disney Sound Source

Postby shock__ » 2019-3-31 @ 19:04

DSS/CST never supported stereo in the first place.
There's an option tho to output mono just on the left speaker/headphone or double the signal to both.
The true stereo functionality is limited to demos or various mod players.

About Pin 12-17 on the FLT board ... check the schematic ... haven't dug into this myself yet (ideally you'd connect a switch).
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Re: Reversing the Disney Sound Source

Postby Staticblast » 2019-4-07 @ 18:18

Out of curiosity, would this work with the CVX4? I'm assuming yes, but I don't really know enough to say for certain for myself.
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Re: Reversing the Disney Sound Source

Postby matze79 » 2019-4-12 @ 08:51

It works on every Covox Speech Thing Clone.

i`m working on a list of covox compatible software, every piece is hand tested.
https://dosreloaded.de/forum/index.php/ ... /?pageNo=1

maybe i will do a similar one with dss.
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Re: Reversing the Disney Sound Source

Postby Staticblast » 2019-4-13 @ 23:26

matze79 wrote:It works on every Covox Speech Thing Clone.

i`m working on a list of covox compatible software, every piece is hand tested.
https://dosreloaded.de/forum/index.php/ ... /?pageNo=1

maybe i will do a similar one with dss.

Cool, thanks!
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Re: Reversing the Disney Sound Source

Postby dr.zeissler » 2019-4-14 @ 14:48

Does this thing work under win98?
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Re: Reversing the Disney Sound Source

Postby matze79 » 2019-4-14 @ 14:56

only with Windows 3.x driver.
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Re: Reversing the Disney Sound Source

Postby Paralel » 2019-4-14 @ 20:51

matze79 wrote:...I also did a new PCB Design for DSS. But currently somehow busy..
Expect a Update in next months for a 50Hz Buzz Free DSS...

Did you ever do this, Matze? I'd be interested in seeing an updated PCB for the DSS alone. I'd like to be able to couple it to my SoundJr. (I wonder if the power for the LPT port could run both, or that's asking too much?)
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Re: Reversing the Disney Sound Source

Postby shock__ » 2019-4-15 @ 08:09

Paralel wrote:
matze79 wrote:...I also did a new PCB Design for DSS. But currently somehow busy..
Expect a Update in next months for a 50Hz Buzz Free DSS...

Did you ever do this, Matze? I'd be interested in seeing an updated PCB for the DSS alone. I'd like to be able to couple it to my SoundJr. (I wonder if the power for the LPT port could run both, or that's asking too much?)
On side 3 there's a schematic for the DSS only part without the DAC.
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Re: Reversing the Disney Sound Source

Postby dr.zeissler » 2019-4-15 @ 08:48

matze79 wrote:only with Windows 3.x driver.

you mean installing win3x driver within win9x;
does this work with a covox too?
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Re: Reversing the Disney Sound Source

Postby matze79 » 2019-4-15 @ 11:29

Yes but expect problems.
Eg. Freeze/Hangs.

Maybe the LPTDAC.386 Driver will work better ?

...I also did a new PCB Design for DSS. But currently somehow busy..
Expect a Update in next months for a 50Hz Buzz Free DSS...


yeah this is software based solution using a ATMega and PWM and later with SPI DAC.
Its not nearly finished only basic covox output is working and has problems at higher Khz speeds..
but my friend who is doing the programming stuff has no time currently to finish it and i`m not nearly as good to get it finished.

it would be better to switch to a small arm device which has already integrated DAC.

Maybe you know the Studio54 ?
http://www.8bity.cz/2014/postavte-si-pc ... ereo-on-1/
Its fully Opendesign.
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