VOGONS


MP-32 : Pi based MT32, GM, ... module

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Reply 60 of 79, by keropi

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quovadis11 wrote on 2020-11-13, 10:41:

[...]
p.s: Do you have any plans for a 5.25 slot enclosure? I have a great ambition to install inside my retro computer and connect it with a 26 pin IDC Wavetable cable.😀

wow that is actually a very neat idea! 😮

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Reply 61 of 79, by appiah4

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keropi wrote on 2020-11-13, 11:01:
quovadis11 wrote on 2020-11-13, 10:41:

[...]
p.s: Do you have any plans for a 5.25 slot enclosure? I have a great ambition to install inside my retro computer and connect it with a 26 pin IDC Wavetable cable.😀

wow that is actually a very neat idea! 😮

I think a better idea would be an eventual wavetable daughterboard model that will have the raspberrypi connected directly on top of it and powered by the PSU's 5V Rail.. Kind of like a 2 slot wavetable solution.

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Reply 62 of 79, by matze79

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Why not make directly a ARM based Wavetable and place all Stuff on One Board.
Banks could be switched by sending commands over mpu for example.

The Pi has many Stuff that no one needs inside a Retro PC, Wlan, Lan, USB.... etc.
It can emulate the Whole Retro PC + MT32... does not feel right to stick that inside the Case.
A full Style break.

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Reply 63 of 79, by SScorpio

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matze79 wrote on 2020-11-13, 23:04:
Why not make directly a ARM based Wavetable and place all Stuff on One Board. Banks could be switched by sending commands over m […]
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Why not make directly a ARM based Wavetable and place all Stuff on One Board.
Banks could be switched by sending commands over mpu for example.

The Pi has many Stuff that no one needs inside a Retro PC, Wlan, Lan, USB.... etc.
It can emulate the Whole Retro PC + MT32... does not feel right to stick that inside the Case.
A full Style break.

Wasn't someone working on a wavetable adapter that takes a Raspberry Pi Compute unit? That can attach right to a sound card and look much cleaner.

Reply 64 of 79, by appiah4

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SScorpio wrote on 2020-11-13, 23:57:
matze79 wrote on 2020-11-13, 23:04:
Why not make directly a ARM based Wavetable and place all Stuff on One Board. Banks could be switched by sending commands over m […]
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Why not make directly a ARM based Wavetable and place all Stuff on One Board.
Banks could be switched by sending commands over mpu for example.

The Pi has many Stuff that no one needs inside a Retro PC, Wlan, Lan, USB.... etc.
It can emulate the Whole Retro PC + MT32... does not feel right to stick that inside the Case.
A full Style break.

Wasn't someone working on a wavetable adapter that takes a Raspberry Pi Compute unit? That can attach right to a sound card and look much cleaner.

I would be very interested to learn about this..

Retronautics: A digital gallery of my retro computers, hardware and projects.

Reply 65 of 79, by dreamblaster

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SScorpio wrote on 2020-11-13, 23:57:

Wasn't someone working on a wavetable adapter that takes a Raspberry Pi Compute unit? That can attach right to a sound card and look much cleaner.

haha yes, i was too ... it was not completed yet,
now i probably change into compute module 4
part of the problem, starting more projects than i finish...
I better first finally MP32.. need more free time!

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Reply 66 of 79, by SScorpio

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dreamblaster wrote on 2020-11-14, 09:38:
haha yes, i was too ... it was not completed yet, now i probably change into compute module 4 part of the problem, starting mo […]
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haha yes, i was too ... it was not completed yet,
now i probably change into compute module 4
part of the problem, starting more projects than i finish...
I better first finally MP32.. need more free time!

At least if you target that you'll have some breathing room. Everything is pre-order only with place holder dates of 12/31/2020, though Element 14 is saying the beginning of February.

The new connector should be able to make a slimmer design. And the no WiFi 1GB model is targetting $25 which makes creating an internal MT32 Pi a no brainer IMO.

Reply 67 of 79, by dreamblaster

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SScorpio wrote on 2020-11-14, 14:54:

At least if you target that you'll have some breathing room. Everything is pre-order only with place holder dates of 12/31/2020, though Element 14 is saying the beginning of February.
The new connector should be able to make a slimmer design. And the no WiFi 1GB model is targetting $25 which makes creating an internal MT32 Pi a no brainer IMO.

Yes indeed, i want to make slim version, take less slot space. The smallest one should do, as we only need the computing power for munt.

Visit http://www.serdashop.com for retro sound cards, video converters, ...
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Reply 68 of 79, by matze79

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There is 1Gb no Wifi Model ? wasnt aware there is such a small one! Nice

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Reply 69 of 79, by dreamblaster

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Maybe I make a new thread on the waveblaster version of MP32, it will be called McCake 32. -->
It will use a compute module 4.. I expect to build a first prototype in december...

Visit http://www.serdashop.com for retro sound cards, video converters, ...
OPL3LPT, X2, S2, S2P, MCE2VGA, ... many projects !
S2+X2 special bundle : https://www.serdashop.com/DreamBlasterBundle
Thanks for your support !

Reply 70 of 79, by darry

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dreamblaster wrote on 2020-11-15, 02:28:

Maybe I make a new thread on the waveblaster version of MP32, it will be called McCake 32. -->
It will use a compute module 4.. I expect to build a first prototype in december...

Will it use an external DAC or the Pi's PWM audio ?

Reply 71 of 79, by dreamblaster

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darry wrote on 2020-11-15, 04:21:

Will it use an external DAC or the Pi's PWM audio ?

The board has it's DAC, NOT using Pi PWM

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Reply 72 of 79, by appiah4

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I'm having trouble following all your recent projects Serge, apparently I missed your ESS wavetable project altogether! Maybe you should start a single thread where you post updates on everything, or start a blog or something? Would hate to miss out on a lot of these, the Pi-32 and ESS WT (I love me some ESS) are particularly interesting to me. Also, that Pi wavetable thing - Do you have photos of a working prototype for that or something? Sounds INCREDIBLY interesting.

Retronautics: A digital gallery of my retro computers, hardware and projects.

Reply 73 of 79, by matze79

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Making a Blog would be a great Idea!

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Reply 74 of 79, by dreamblaster

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new revision of 3d print enclosure, almost ok

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Visit http://www.serdashop.com for retro sound cards, video converters, ...
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Thanks for your support !

Reply 75 of 79, by appiah4

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Looks more like an SC-55 than an MT-32 this time around, why did you ditch the angled front panel? 😀

Retronautics: A digital gallery of my retro computers, hardware and projects.

Reply 76 of 79, by dreamblaster

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appiah4 wrote on 2020-11-16, 06:36:

Looks more like an SC-55 than an MT-32 this time around, why did you ditch the angled front panel? 😀

it still looks like MT-32 in reality, but on a frontal photo, you can't see the angle...

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Visit http://www.serdashop.com for retro sound cards, video converters, ...
OPL3LPT, X2, S2, S2P, MCE2VGA, ... many projects !
S2+X2 special bundle : https://www.serdashop.com/DreamBlasterBundle
Thanks for your support !

Reply 77 of 79, by appiah4

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Oh wow, the perspective on that first photo is absolutely mind bending 🤣

Finish this thing fast Serge, I must buy it asap! 😀

Retronautics: A digital gallery of my retro computers, hardware and projects.