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Started by abalore, 15:38, 23 November 21
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Quote from: Cwiiis on 18:16, 24 November 21Just wondering, if it's 3 extra sound channels, how does that get merged with the existing 3 channels? The PlayCity has its own audio output and 6 channels, I was under the impression that PlayCity software would only use that and not the on-board channels, but having never seen one, maybe I was under the wrong impression?
Quote from: abalore on 17:16, 24 November 21Yes, it's 3 channels. It's not a Playcity, it follows the Playcity specification, which means the hardware ports used are the same.
Quote from: abalore on 19:21, 24 November 21and played through the CPC speaker,
Quote from: eto on 20:18, 24 November 21How do you feed the sound back into the CPC?
Quote from: GUNHED on 19:38, 24 November 21Understood. Which chip / which IO addresses of the PlayCity to correspond to the Play2CPC?And are they left/center/right?It would be great to know, so I can adapt some of my software supporting PlayCity.
Quote from: CraigsBar on 13:25, 25 November 21The play city provides 6 additional sound channels (And 2 extra noise generators). On a CPC this is passed back into the CPC via the expansion port (Albeit in Mono) and mixed into the standard AY sound making 9 channels and 3 noise generators in total.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. I hope that answers the question?
Quote from: abalore on 10:47, 24 November 21The device itself must be connected to a computer, but the cartridges you write can be later used on a GX4000.
Quote from: Singaja on 14:33, 26 November 21I have trouble understanding what "The cartridges can be written directly from the CPC." exactly allows. I've never owned a CPC Plus so I'm not very familiar with cartridges in Amstrad context. Are they by standard read only like roms? So is this writing to those modern cartridges using SD cards internally as their storage? Ignoring the musical channels for a second, how this device is supposed to be used on a tradish CPC6128?
Quote from: HAL 6128 on 21:27, 26 November 21ok understand. are those cartridges, if used with a gx4000 then still writable?
Quote from: abalore on 15:38, 23 November 21I'm proud to announce a joint development with TotO, the Play2CPC, an evolution of the Plus2CPC adapter which includes two major new features:- 3 extra AY sound channels- Support for rewritable cartridgesThe new sound channels follow the Playcity hardware specification, so they are compatible with existing software like Arkos Tracker 2 and Alcon2020.The cartridges can be written directly from the CPC. They can be used from a cartridge game to store settings and hi-scores, for instance, or be fully written with new games or other contents.The status of the project is: working prototype
Quote from: Cwiiis on 22:27, 27 November 21Oh, that's interesting - what's missing on a Plus that's there on a CPC with regards to feeding audio back? Kind of a shame, I wonder if a hardware mod is possible/feasible to make up for that deficiency...
Quote from: CraigsBar on 01:59, 28 November 21It would be better enhanced not just added. If the Playcity input ot the PLus could be in stereo and mixed into the monitor speakers, that would be amazing!
Quote from: Maniac on 13:10, 28 November 21 I keep wondering about this too. I'm left thinking that if not by the expansion port then maybe via some kind of audio board that can be plugged in to the monitor output of the Plus. That can thru-put the video signals and mix the two audio sources together so that they can be output via the CM14 stereo speakers. But I don't have the skills to design or make such a device nor understand if it would even be possible.
Quote from: Cwiiis on 18:30, 28 November 21Definitely possible and I'll design it if I get a PlayCity, but I'd like to understand how the mixing works on a stock CPC but not a Plus - as far as I know the expansion port is the same(?) If it isn't, a better mod would be something internal to the Plus to make it work like the CPC, if it's possible...
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