Cybernoid

It doesn't matter which version of APE is used as long as it supports R: emulation. I have tested it with APE 98 and on XP. I have even used the emulator to connect to APE. It should be possible to play via an 850 as well. The only problem I am having now is that there is not enough time for RMT music and network play at the same time...

Welcome aboard Adam! You have done great work, and I hope you can do more screens for my next game...that is if the rest of these guys don't keep you too busy. _C_

Thanks!!!! But I cannot take credit for this. Adam Powroznik has done a fantasic job with G2F on this!!!! How does all this Atari talent end up in Poland, huh? BTW, Adam, if you are on this board, what is your Username? C ya, C

This rocks! Please keep the music coming...

Oops, forgot the Samples... sixbitpcm.zip

Thanks! Yeah, that one was pure 6bit. Here are a few more 6bit 13.3kHz samples, and the source code. These sound great on the real hardware. The code uses all 4 pokey voices in volume only mode for an effective 6bit range. There are some more experiments I am working on, so it may still be possible to do better than 6bit. I am ultimately working on a player for the MaxFlash Cart and for MyIDE. The Flash Cart code is written, but I still have a few more questions for Steve... I have talked to Mr. Atari as well. ~C~ wavplay.zip

Well, you are just supposed to hear some audio. Just as I expected, the 6bit+ doesn't work on the real hardware, showing that frequency aliasing is not really emulated properly. Well, it works but with a horrible hiss. 6bit PCM at 13.3KHz sampling rate it not that bad though...

Oops. Had a bug in the code. This fixes a few hisses and pops... plastic_pop.zip

Here is another experiment with some higher fidelity audio. This time the audio is sampled at 16kHz, but I am doing some tricks to vibrate the speaker faster than the ear can hear it to cause some half volume samples. This creates a pseudo-7bit PCM playback and works great on the emulator. I need to try this on the real hardware. I would guess that it might cause some frequency aliasing, and you might hear some unwanted high frequencies... pcm_test1.zip

Just a little 6-bit 4kHz sampling PCM demo. :wink: Run this in the emulator with 128k memory...wait... then listen... Happy Holidays! gatesxmas.zip

Also, this guy will convert from S-video to Y Pb Pr: http://www.highway.net.au/parts/converters/2003.html I do not see separate Y Pb Pr BNC connectors, but there is a menu option for Y Pb Or output. I assume you use the VGA to RGB converter, but the RGB end would really output the Y Pb Pr color space. But you will have to spend a couple $$$'s...

Does your DVD accept S-video inputs? This can be used to connect to an Atari without modification.

Uh, if you only connect to the Y signal, you will only get black and white. Y = luma = brightness only. Pb / Pr are color components. Y Pb Pr is a different color space, but can be transformed from RGB, anyway... You should not connect the Video Out (composite Video (pin 4 on monitor port)) signal to Y, but rather the composite Luminace, pin 1, to Y. Even though the Video out will work, you will see the "color information" as noise on the screen. I think the best you can do, without a separate chip to convert S-video to Y Pb Pr or to RGB, is to connect the Luminance pin to Y. You will need a chip that can take composite chrominance and convert it into separate color channels....

Thanks raster. This is awesome and very helpful. Oh no, I understand. That is why I and very appreciative of RMT. We can make awesome music with little effort now... because you have put most of the effort into RMT. Good requests I was building-in to RMT always. Keep them coming....

I guess it would be possible to add some internal hardware that would allow any accesses to Pokey, Antic, Gtia, PIA, etc show up on the CCTRL address space. Make it configuratable be a $d500 register somewhere and you are set. This is a whole different discussion, though. This would be most useful for adding extra Pokeys and Antics...if that is useful.

You could do that, but the point is to make something that doesn't require a hardware mod. I wouldn't stop you from adding a switch. I can see how it could be done with one additional mux chip. You could also make a PBI device that uses the whole address bus, that way you could decode the additional Pokeys at address $d200 and $d210. As long as you disable reads from the Pokeys on the PBI this should be okay... However, it is easy to make a modified RMT player that uses the CCTL address space. Other programs could be modified as well. I would also like to see a dual-sid cart for the Atari, and also a dual-sid/dual-pokey cart. Though, this last one will take up too much space in a cart.... it would be nice. Heck, you could even do a pseudo-dolby 5.1 channel surround sound cart, but it would take 6 Pokeys!

So, when will you have a PCB made? When will a cart be available for purchase and for how much do you think? This is the fastest I have seen a question go from post to proto-type!

Most Excellent!!!!

It is on its way...

This is all too true... BTW, I am writing this, and most of my posts, from my Zaurus PDA.

The SID should plug in and direct connect to the CPU nicely: http://stud1.tuwien.ac.at/~e9426444/index.html There might be room in a cart for a SID and a Pokey. Mix them together for a nice Mono cart. Hmmm, interesting.... Sack-c0s, your RMT productions rock. I agree, this type of music is great. There needs to be more bands that use Pokey/8bit-ataris for music!!!

Oh, I don't know... If you built an old 8bit into a dvd player, settop box, or pvr/dvr, and make it so that it is one of the graphics layers (like Closed Caption or Teletext), you would have a nice selling point. Your Settop comes ready with personal, kid-safe computer. Make it so that you can download games and utilities over the internet and you are set!!! I work making chips for HDTV. Some of the next generation TVs have a fast enough CPU in them, that I thought about porting Atari800 to these CPUs/chipsets. That way I can hack an Atari computer straight into the TV. Well, I may be dreaming, but it is possible.

Very cool Steve! I'll modify the RMT player code... very simple. If you can pull a cart together, I'll put an option into the JellyBeans Option menu for "Stereo Pokey Cart Music".

Where can you get cheap cartridge housings?

I think someone already build an Atari interface for the SID...was it Analmux? Anyway, this is pretty much what I thought... I don't think the players, including RMT, use the irq...so it should be easy. I have seen the source code for the RMT player (let me know if I am wrong), so it could easily be modded to look at $d500... If we put 2 pokeys into a cart and use A7 to select between the two... one at $d500 and the other at $d580, with a stereo jack...It should be easy to do for plug and play