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Re: SVN builds - new driver flood [Re: Anna Wu] #92835
02/11/14 03:44 AM
02/11/14 03:44 AM
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Shoegazer Offline
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Well yes, technically 6 colors. smile And the voice added so much to the experience - getting caught in the maze would legitimately scare you when playing alone in a dark room late at night!

Re: SVN builds - new driver flood [Re: Anna Wu] #92836
02/11/14 04:18 AM
02/11/14 04:18 AM
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Firehawke Offline
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I'm actually more familiar with the CoCo port of it, "Mega Bug". Classic game, though! Played it a LOT when I was a kid.

Re: SVN builds - new driver flood [Re: Anna Wu] #92837
02/11/14 05:02 AM
02/11/14 05:02 AM
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Shoegazer Offline
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Oh, neat. I hadn't realized there was a CoCo port. I'm curious, does it preserve the voice effects as well? If so, I'm guessing it would have to be done in some other way since software-digitized voice was an Apple II-specific "hack". Bob documented how he managed to get it working; it was a pretty ingenious feat for its day and you could count all the games that used it on one hand.

Re: SVN builds - new driver flood [Re: Shoegazer] #92846
02/11/14 01:38 PM
02/11/14 01:38 PM
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smf Offline
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Originally Posted By Shoegazer
I'm guessing it would have to be done in some other way since software-digitized voice was an Apple II-specific "hack".


No, you could use tape recorders as 1 bit dac on many systems. Once recorded you could play it back on any computer that allows you to output a pulse, the limitation was the amount of memory, whether there was an accurate timing interrupt you could use & whether you could justify the cpu overhead during your game.

The c64 could produce 4 bit samples by modifying the volume register (changing the volume also changed the DC offset in the chip IIRC) http://www.youtube.com/watch?v=ES_RbE6u6jg

The zx spectrum could only play 1 bit samples, there are some pretty cool songs here. http://z80.i-demo.pl/music.html

there was even a 3 channel mod tracker for the spectrum

http://z80.i-demo.pl/mister_beep-digital_world.mp3

There are forums and news sites for 1 bit music.

http://shiru.untergrund.net/1bit/

Last edited by smf; 02/11/14 01:52 PM.
Re: SVN builds - new driver flood [Re: Anna Wu] #92847
02/11/14 02:41 PM
02/11/14 02:41 PM
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Firehawke Offline
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The voice effect is intact.

http://www.youtube.com/watch?v=wZIKyqZRlDc

Re: SVN builds - new driver flood [Re: Anna Wu] #92858
02/11/14 11:58 PM
02/11/14 11:58 PM
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Shoegazer Offline
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Thanks for the info and links, smf. Actually I should have expanded a bit - Apple II "sound effects," if you can call them that, are very limited given that the system has no dedicated sound hardware and the speaker isn't capable of much more than crude beeps and clicks. What Bob managed to do in a simple ASM program with voice (and in reality, others had also done with games like "Seawolf", "Castle Wolfenstein" and "Plasmania") was pretty neat given these limitations, especially since it was done in the early 80s when people hadn't had decades of experience with the hardware to draw upon.

Thinking about it a bit further, I don't suppose the ZX Spectrum was any different in that regard, which makes those 1-bit samples you linked to equally cool. I have zero experience with that system, or the CoCo for that matter, so I had no idea such things were possible until now.

Re: SVN builds - new driver flood [Re: Anna Wu] #92859
02/12/14 12:30 AM
02/12/14 12:30 AM
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There were speaker-click MOD players on the PC in the late 80s/early 90s as well. Nothing like playing Oktalyzer files through the PC speaker on a 386/25 to make you realize the Amiga is doomed smile

Re: SVN builds - new driver flood [Re: R. Belmont] #92860
02/12/14 01:11 AM
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smf Offline
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Originally Posted By R. Belmont
There were speaker-click MOD players on the PC in the late 80s/early 90s as well. Nothing like playing Oktalyzer files through the PC speaker on a 386/25 to make you realize the Amiga is doomed smile


The Amiga survived better than that 386/25 with no sound card.

Once people had VGA and a sound card then the PC became a viable competitor. Doom was basically the breakthrough game, the Amiga couldn't compete with lunchtime matches over a LAN.

Commodore was stuck with obsolete hardware and no money to finish off their next generation (they'd also been pumping money into a second system syndrome project and didn't cancel it quick enough). It's unfortunate that everyone came knocking for their money at the same time as if they'd sold all the CD32's that were manufactured they might have lumbered on a bit longer.

Re: SVN builds - new driver flood [Re: Anna Wu] #92861
02/12/14 01:23 AM
02/12/14 01:23 AM
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But said 386/25 showed exactly how the PC was going to kill the Amiga, as well as dedicated arcade hardware: Intel made brute CPU power cheaper than custom chips (and of course it was always more flexible). The 680x0 couldn't keep up once the 486/66 came out. Apple had their escape plan already in place, Commodore couldn't afford one.

Re: SVN builds - new driver flood [Re: Anna Wu] #92864
02/12/14 02:04 AM
02/12/14 02:04 AM
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Sune Offline
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My friend held on to a tricked-out Amiga 4000 that was finally replaced by a 233MHz Pentium II with a Matrox Millennium video card..I think it was hard for him, he'd bought an Amiga 2000 in 1988, it was shipped from Germany IIRC, before it was available in retail in Denmark. He was "a believer" laugh I was right there when half the European C64 demo/pirate scene defected to the Amiga. It was an exciting time.

There were some pretty good Doom clones for the Amiga by the mid-90s - if you had capable, super expensive hardware. But when Descent came out on the PC we knew there was no way the Amiga could keep up.

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