Play2CPC (Plus2CPC II) : Extra sound channels and rewritable cartridges

Started by abalore, 16:38, 23 November 21

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Cwiiis

Quote from: TotO on 21:10, 28 November 21
Yes, the same expansion port, but the Amstrad Plus doesn't have an internal speaker to output the mixed audio.

I imagine that you liked this comment, because you can wait for technical informations from the wiki, next. :)
We have an answer around that but not now, because some work in progress and tests to do first.

Ah, I think I understand - I guess the PlayCity relies on the whole tape-sound-interference thing to mix sound with the internal sound on a CPC464? I guess the only really viable way to mix sound on the Plus without any hardware modifications in that case would be to dedicate a channel to external sound and use DMA... I guess I should get on with making a 8-pin DIN mixer+a/v passthrough board :)


entelle42



Cwiiis

Quote from: krusty_benediction on 14:08, 01 December 21
Just a curiosity question.
Such MSX game https://github.com/GuillianSeed/MetalGear seems to use 16banks of 16kb. We can assume a CPC port would be at least of the same size; probably more due to the potential difference of gfx format.
Would if fit inside such cartridge ?
16x16Kb = 256Kb and the maximum size of a Plus cart is 512Kb, so I guess short answer: yes.

GUNHED

Quote from: CraigsBar on 14:25, 25 November 21
On a plus there is no facility to feed audio back in on the expansion port, and because of this the PlayCity also has a stereo 3.5mm stereo jack for the extra channels.
Actually my 6128plus can do this too, but way more silent. I found out by chance a while ago, when I did something for LambdaSpeak FS.
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GUNHED

They do occupy mainly different ROMs (lower than &80 or &80 and higher). But they must provide the lower ROM both at least. So they won't be compatible in general, but by smart programming (same lower ROM content etc.) the may work together. There my not be too much use though.
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TotO

Quote from: krusty_benediction on 21:59, 19 December 21
How would be the compatibility with existing cartridge projects such as https://auamstrad.es/the-dandanator-entertainment-system/ ? (When looking only on the cartridge functionnality, not the sound)
It will be not compatible, because the Play2CPC use Amstrad standard ROM paging and cartridge for new CPC games, while the DES use GameBoy Advance cartridge with a custom ROM paging through Z80 opcodes for new Speccy ports.
"You make one mistake in your life and the internet will never let you live it down" (Keith Goodyer)


TotO

The C4CPC can already be used on the Plus2CPC and Play2CPC cartridge adapters.
The Play2CPC allows to program a compatible blank cartridge from the CPC. No USB plug.
"You make one mistake in your life and the internet will never let you live it down" (Keith Goodyer)

GUNHED

Quote from: TotO on 15:41, 22 December 21
... allows to program a compatible blank cartridge from the CPC. ...
And that's the cool thing! I love hardware which runs at the CPC and with the CPC!
IMHO it suxx bad if I need to buy a PC just to be able to use hardware for the CPC!
Cheers to 100% CPC / Plus hardware.  :) :) :) :) :) :) :) :) :) :) :) :)
http://futureos.de --> Get the revolutionary FutureOS (Update: 2022.03.09)
http://futureos.cpc-live.com/files/LambdaSpeak_RSX_by_TFM.zip --> Get the RSX-ROM for LambdaSpeak :-) (Updated: 2021.12.26)



genesis8

Zombi mode : need !
And so Barbarian isnt using any CPC+ feature, just maybe using for good the "mass storage" available ?
____________
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abalore

Quote from: genesis8 on 17:58, 11 January 22
Zombi mode : need !
And so Barbarian isnt using any CPC+ feature, just maybe using for good the "mass storage" available ?
I have played Barbarian II, Mystical and Tintin on the Moon in the CPC, and you can listen to the music of Navy Seals, Dick Tracy and Robocop II (both title and in-game).
It all depends on the plus feature usage.


And, of course, they all work in a Plus using the Play2CPC adapter.

GUNHED

Didn't expect so much Plus games not to use Plus features. Somehow really sad.
http://futureos.de --> Get the revolutionary FutureOS (Update: 2022.03.09)
http://futureos.cpc-live.com/files/LambdaSpeak_RSX_by_TFM.zip --> Get the RSX-ROM for LambdaSpeak :-) (Updated: 2021.12.26)

GUNHED

Quote from: JayBlood on 17:48, 24 November 21

Are you sure? I remember the Playcity add 3 ay voices. Maybe I'm wrong. :)
For Cyber Chicken all 6 channels were used.
http://futureos.de --> Get the revolutionary FutureOS (Update: 2022.03.09)
http://futureos.cpc-live.com/files/LambdaSpeak_RSX_by_TFM.zip --> Get the RSX-ROM for LambdaSpeak :-) (Updated: 2021.12.26)

TotO

Quote from: GUNHED on 01:45, 23 January 22
For Cyber Chicken all 6 channels were used.
But twice the same 3 channels, if I remember well?
"You make one mistake in your life and the internet will never let you live it down" (Keith Goodyer)

GUNHED

 ??? Don't know what you mean.

The game songs were played with the internal PSG, because I got them in that format.
That way the six channels of the PlayCity were free for stereo sound effects.

I still wouldn't know a program to compile a song for the PlayCity.
But let's come back to the topic eventually.

Is there / Will there be an application to make songs for the extra sound channels of the Play2CPC?
http://futureos.de --> Get the revolutionary FutureOS (Update: 2022.03.09)
http://futureos.cpc-live.com/files/LambdaSpeak_RSX_by_TFM.zip --> Get the RSX-ROM for LambdaSpeak :-) (Updated: 2021.12.26)

TotO

Quote from: GUNHED on 20:28, 23 January 22 ???  Don't know what you mean.The game songs were played with the internal PSG, because I got them in that format.That way the six channels of the PlayCity were free for stereo sound effects.

It is your code. ;D
It use six channels for the Sfx, but it sound like 3 channels, because the same data are sent to the left and right. But that is not a problem at all, I have just remembered that.
:-* 

Quote from: GUNHED on 20:28, 23 January 22
I still wouldn't know a program to compile a song for the PlayCity.
Is there / Will there be an application to make songs for the extra sound channels of the Play2CPC?
You can use Arkos Tracker 2 or any other softwares by adapting the player to use the PlayCity ports instead.
"You make one mistake in your life and the internet will never let you live it down" (Keith Goodyer)

GUNHED

Quote from: TotO on 20:59, 23 January 22
You can use Arkos Tracker 2 or any other softwares by adapting the player to use the PlayCity ports instead.
Good to hear that Arkos Tracker 2 can do this now. It wasn't clear to me before.
http://futureos.de --> Get the revolutionary FutureOS (Update: 2022.03.09)
http://futureos.cpc-live.com/files/LambdaSpeak_RSX_by_TFM.zip --> Get the RSX-ROM for LambdaSpeak :-) (Updated: 2021.12.26)

TotO

Yes, Arkos Tracker 2 do it since four years ago and include all the players. ;)
"You make one mistake in your life and the internet will never let you live it down" (Keith Goodyer)

GUNHED

Well, then back to the Play2CPC.  :)
http://futureos.de --> Get the revolutionary FutureOS (Update: 2022.03.09)
http://futureos.cpc-live.com/files/LambdaSpeak_RSX_by_TFM.zip --> Get the RSX-ROM for LambdaSpeak :-) (Updated: 2021.12.26)

abalore


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