The 1-Bit Forum — GTIA trick on Atari ST?

Re: GTIA trick on Atari ST?

2016-11-11T13:06:49Z

it's connected both to the audio out and to the modulator, so I don't know to what extend it's possible to drive a signal to the audio output this way. I know almost nothing about all this so I can't really tell, it's just a guess.

Re: GTIA trick on Atari ST?

2016-11-11T10:14:02Z

Hmm, interesting. As far as I understand the schematics (read: not very far), it might only affect RF out, though?

Re: GTIA trick on Atari ST?

2016-11-07T08:40:15Z

I thought on the Atari ST the ym2149 handles all alone the audio output, but now I see on an Atari ST schematics that some video and modulator stuff are connected to the audio out, so why not?

GTIA trick on Atari ST?

2016-11-05T19:27:11Z

So I was wondering, would it be possible to apply the GTIA method from Atari 8-bit to the 16-bitters somehow? Ie. produce sound without using YM or DMA sound? Any ideas?