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McQub : QS1000 based waveblaster module

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First post, by dreamblaster

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Hello,
here's a new project :
McQub
a waveblaster compatible sound pcb
based on the QS1000 chipset + QS1003 16Mbit ROM
with following specs :
• 32 voices polyphonic playback at 44.1khz
• Advanced Time Variable filter and amplitude control (ATFA)
• Advanced Q PCM sound synthesis

I have made some prototypes and sent one to PCSoundLegacy for testing.
PCSoundLegacy made a great video demonstrating McQub to the world for the first time :
https://youtu.be/JVkSgahVHVI

I will make a small batch, which will be generally available in september.
A very small amount may be available earlier.
Feel free to PM me, if you are interested in an early bird edition.

mcqub_top.jpg
McQub_bottom.jpg
Last edited by dreamblaster on 2021-07-10, 06:25. Edited 7 times in total.

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Reply 1 of 22, by Salient

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Oh come on!! I keep spending money this way......

Can I order one already? 😀

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(Always) looking for: Any Wavetable daughterboard, MIDI Module (GM/GS/XG)

Reply 3 of 22, by konc

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So where does this stand compared to the other waveblaster boards in the lineup?

Reply 4 of 22, by Pierre32

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Out of the blue! I saw it on PCSoundLegacy's channel before I saw it here. Sounds great.

Reply 5 of 22, by badmojo

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Very nice - I have the 2MB version of the Diamond Monster DB with this chip-set and always thought it sounded great, particularly with rock sound tracks like DOOM.

Life? Don't talk to me about life.

Reply 6 of 22, by Shreddoc

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Given that Yamaha 719 cards often seem to come with an unpopulated QS1000 pad (albeit perhaps for use with a 1MB on-card ROM), perhaps this module would be a good pairing for those cards.

Reply 7 of 22, by Stiletto

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dreamblaster wrote on 2021-07-09, 19:22:

based on the QS1000 chipset + QS1003 16Mbit ROM

I think I know the answer to this already, but... I assume you just used what documentation was out there already and maybe some minor reverse engineering of other QS1000 cards?

Reason I ask was I was one of the point guys on trying to find QS1000 documentation so that MAME could emulate it, back in the day. We never ended up finding much at all other than simple datasheets, and in the end we had to make do with reverse-engineering it based on disassemblies and audio analysis. It works... okay, thanks mainly to Phil Bennett, but there's still more to be done.
https://github.com/mamedev/mame/blob/master/s … ound/qs1000.cpp

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Reply 8 of 22, by Salient

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McQub arrived today safe and sound!

MIDI comparison website: << Wavetable.nl >>
(Always) looking for: Any Wavetable daughterboard, MIDI Module (GM/GS/XG)

Reply 9 of 22, by dreamblaster

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Stiletto wrote on 2021-07-12, 21:51:

I think I know the answer to this already, but... I assume you just used what documentation was out there already and maybe some minor reverse engineering of other QS1000 cards?

Based on this datasheet

Visit http://www.serdashop.com for retro sound cards, video converters, ...
DreamBlaster X2, S2, S2P, HDD Clicker, ... many projects !
New X2GS SE & X16GS sound card : https://www.serdashop.com/X2GS-SE ,
Thanks for your support !

Reply 10 of 22, by Stiletto

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dreamblaster wrote on 2021-07-14, 16:49:
Stiletto wrote on 2021-07-12, 21:51:

I think I know the answer to this already, but... I assume you just used what documentation was out there already and maybe some minor reverse engineering of other QS1000 cards?

Based on this datasheet

Yeah, okay. Thanks anyways! 😀

"I see a little silhouette-o of a man, Scaramouche, Scaramouche, will you
do the Fandango!" - Queen

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Reply 11 of 22, by igna78

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How does it sound with Doom? and with old Dos games like Monkey Island? Is there any recording?
Thank you 😁

Reply 12 of 22, by DNSDies

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*sigh* How much do you want for it?

Reply 13 of 22, by Salient

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igna78 wrote on 2021-07-14, 19:31:

How does it sound with Doom? and with old Dos games like Monkey Island? Is there any recording?
Thank you 😁

https://www.wavetable.nl/category/comparisons/gamemusic/ 😉

MIDI comparison website: << Wavetable.nl >>
(Always) looking for: Any Wavetable daughterboard, MIDI Module (GM/GS/XG)

Reply 14 of 22, by igna78

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Salient wrote on 2021-07-15, 04:41:
igna78 wrote on 2021-07-14, 19:31:

How does it sound with Doom? and with old Dos games like Monkey Island? Is there any recording?
Thank you 😁

https://www.wavetable.nl/category/comparisons/gamemusic/ 😉

But these are recordings made with McQub?
Sorry if I ask but from the upload date I wouldn't say 🤔

Reply 15 of 22, by Pierre32

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igna78 wrote on 2021-07-15, 08:49:
Salient wrote on 2021-07-15, 04:41:
igna78 wrote on 2021-07-14, 19:31:

How does it sound with Doom? and with old Dos games like Monkey Island? Is there any recording?
Thank you 😁

https://www.wavetable.nl/category/comparisons/gamemusic/ 😉

But these are recordings made with McQub?
Sorry if I ask but from the upload date I wouldn't say 🤔

The QS1000 chipset is the relevant part. In theory it shouldn't matter too much if the recordings came from the actual McQub or not. With that said, I don't see any QS1000 recordings on that site. There are some from the QS700 but I don't know how close it is.

The good news is there are some QS1000 recordings in the first post here: My Wavetable Sample Thread

And in case you missed it, some actual McQub captures are linked in the OP:

dreamblaster wrote on 2021-07-09, 19:22:

PCSoundLegacy made a great video demonstrating McQub to the world for the first time :
https://youtu.be/JVkSgahVHVI

And some more (non-McQub) QS1000 recordings here: https://www.youtube.com/watch?v=6cMH5kUhgos

Reply 16 of 22, by igna78

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Ok thanks for the reply and the links 🤗

Reply 17 of 22, by Drasglaf

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igna78 wrote on 2021-07-15, 08:49:
Salient wrote on 2021-07-15, 04:41:
igna78 wrote on 2021-07-14, 19:31:

How does it sound with Doom? and with old Dos games like Monkey Island? Is there any recording?
Thank you 😁

https://www.wavetable.nl/category/comparisons/gamemusic/ 😉

But these are recordings made with McQub?
Sorry if I ask but from the upload date I wouldn't say 🤔

When you click on any game from that link, you get a list of all the devices that have been recorded playing certain songs from said game. And yes, the McQub is among them (it's listed as Serdaco McQub).

For instance:
https://www.wavetable.nl/files/comparison/gam … %20McQub%5D.mp3

Reply 18 of 22, by Pierre32

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Oh wow, I stand corrected. I was ctrl-f'ing the wrong thing!

Reply 19 of 22, by Salient

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igna78 wrote on 2021-07-15, 08:49:
Salient wrote on 2021-07-15, 04:41:
igna78 wrote on 2021-07-14, 19:31:

How does it sound with Doom? and with old Dos games like Monkey Island? Is there any recording?
Thank you 😁

https://www.wavetable.nl/category/comparisons/gamemusic/ 😉

But these are recordings made with McQub?
Sorry if I ask but from the upload date I wouldn't say 🤔

The links themselves may be from 2010 sometimes, but not all the recordings are of course.
for instance: https://www.wavetable.nl/doom/

You see a lot of recordings, among which the McQub (all of them recorded yesterday), although they don't show a date since it's just a 'folder listing'.

MIDI comparison website: << Wavetable.nl >>
(Always) looking for: Any Wavetable daughterboard, MIDI Module (GM/GS/XG)