tep392 Posted October 28, 2015 Share Posted October 28, 2015 Has anyone tried my Donkey Kong XM demo? I'm curious if it works with Concerto. Also, does Concerto emulate the High score cart? Use one of the versions built for XM support. http://atariage.com/forums/topic/204250-donkey-kong-xm-pre-order-and-demo/page-1?do=findComment&comment=2621136 Link to comment Share on other sites More sharing options...
funknflow5200 Posted October 28, 2015 Share Posted October 28, 2015 I've got donkey kong XM working but I cannot get it to work with Pokey audio- not sure if the header needs to be changed. Link to comment Share on other sites More sharing options...
+grips03 Posted October 28, 2015 Share Posted October 28, 2015 please add me to the list Link to comment Share on other sites More sharing options...
toiletunes Posted October 28, 2015 Share Posted October 28, 2015 Another question for the first batch, does the cart have built in HSC capabilities? Link to comment Share on other sites More sharing options...
+Mitch Posted October 28, 2015 Share Posted October 28, 2015 Verified - a different SD card is working fine. On a different note: I tried the copy of Commando linked above and I can hear the music, but it's very low volume. I hear the other sounds in the game fine. Ballblazer seems just fine with respect to the music sound level, so I wondered if anyone had any other ideas about Commando. Also, what are some homebrew titles that use the POKEY? Do you have a modded 7800 or a PAL 7800? Mitch Link to comment Share on other sites More sharing options...
+Rick Reynolds Posted October 28, 2015 Share Posted October 28, 2015 I have a NTSC 7800 on which I've done an A/V mod. Nothing else special. Link to comment Share on other sites More sharing options...
+Mitch Posted October 28, 2015 Share Posted October 28, 2015 I have a NTSC 7800 on which I've done an A/V mod. Nothing else special. A lot of A/V modded 7800s have the wrong resistor value for the POKEY audio channel. This causes the POKEY audio to be too soft. Mitch Link to comment Share on other sites More sharing options...
CPUWIZ Posted October 28, 2015 Share Posted October 28, 2015 A lot of A/V modded 7800s have the wrong resistor value for the POKEY audio channel. This causes the POKEY audio to be too soft. Mitch But why would Ballblazer be fine and Commando not? Link to comment Share on other sites More sharing options...
gorfcadet Posted October 28, 2015 Share Posted October 28, 2015 I know somewhere many pages ago I wanted in, but just in case... add me to the take my money list! Link to comment Share on other sites More sharing options...
Trebor Posted October 28, 2015 Share Posted October 28, 2015 But why would Ballblazer be fine and Commando not? Perhaps it is sort of an auditory illusion. Ballblazer is strictly POKEY, while Commando contains POKEY for background music, but TIA for sound effects. Standalone the POKEY levels sound normal, but when heard in conjunction with TIA, the POKEY is drowned out due to, as Mitch mentioned, an incorrect resistor/audio mod. 1 Link to comment Share on other sites More sharing options...
+Mitch Posted October 28, 2015 Share Posted October 28, 2015 But why would Ballblazer be fine and Commando not? Actually, it affects Ballblazer as well but you don't notice because you can't hear the TIA sound being louder. It's the difference in volume that makes it noticeable in Commando. Mitch edit: Looks like Trebor beat me to it 1 Link to comment Share on other sites More sharing options...
+Rick Reynolds Posted October 28, 2015 Share Posted October 28, 2015 Thanks for that info! Any pages someone could point me to so that I could diagnose and hopefully fix the resistance issue? Link to comment Share on other sites More sharing options...
+Mitch Posted October 28, 2015 Share Posted October 28, 2015 Which mod do you have installed? Mitch Link to comment Share on other sites More sharing options...
+Rick Reynolds Posted October 28, 2015 Share Posted October 28, 2015 This one: http://www.coolretroprojects.com/Atari-2600-7800-A-V-Mod-Kit-NTSC-PAL.html Link to comment Share on other sites More sharing options...
+Mitch Posted October 29, 2015 Share Posted October 29, 2015 This one: http://www.coolretroprojects.com/Atari-2600-7800-A-V-Mod-Kit-NTSC-PAL.html Yes, the audio is done incorrectly on that mod. You want to use audio method 2 from here: http://atari7800.org/7800mod/7800_mod.htm Mitch Link to comment Share on other sites More sharing options...
+Rick Reynolds Posted October 29, 2015 Share Posted October 29, 2015 Wow, and now I have a weekend project! Thanks so much guys. Link to comment Share on other sites More sharing options...
+Rick Reynolds Posted October 29, 2015 Share Posted October 29, 2015 I'm looking at that page, but unfortunately due to font issues I can't tell where the two audio signals come from in the "where to get signals" portion of the page! Do you guys know which points on the board will give me the audio signals? Link to comment Share on other sites More sharing options...
funknflow5200 Posted October 29, 2015 Share Posted October 29, 2015 Has anyone tried my Donkey Kong XM demo? I'm curious if it works with Concerto. Also, does Concerto emulate the High score cart? Use one of the versions built for XM support. http://atariage.com/forums/topic/204250-donkey-kong-xm-pre-order-and-demo/page-1?do=findComment&comment=2621136 Just tried all versions, all play (NTSC) except the Pokey is not detected. Link to comment Share on other sites More sharing options...
+Mitch Posted October 29, 2015 Share Posted October 29, 2015 I'm looking at that page, but unfortunately due to font issues I can't tell where the two audio signals come from in the "where to get signals" portion of the page! Do you guys know which points on the board will give me the audio signals? Here's a post from a while back with a picture. http://atariage.com/forums/topic/185950-lhe-mod-problems/?p=2343932 Mitch Link to comment Share on other sites More sharing options...
+Rick Reynolds Posted October 29, 2015 Share Posted October 29, 2015 I'll say thanks again! I appreciate it, Mitch. Link to comment Share on other sites More sharing options...
Andromeda Stardust Posted October 29, 2015 Share Posted October 29, 2015 A lot of A/V modded 7800s have the wrong resistor value for the POKEY audio channel. This causes the POKEY audio to be too soft. Mitch Mine was A/V modded by Best, and I can confirm that Ballblazer audio is LOUD on mine. Sadly I don't have a Commando to test with. I could see this being a problem in the future as XMs and Concertos get shipped out and homebrews that use both TIA and Pokey start to exist. TIA sound effects and Pokey musical soundtrack is really a perfect marriage as you don't have to worry that the sound effects get in the way of the music. Also are these re-release units for sale yet? Coming soon? I have one spare Ballblazer ready to sacrifice for the Concerto if Hokey isn't ready at release. I assume the pokey chip out of an 800 would work ? I have a spare one of those. I think Brad sells pokey chips for $25 at best electronics. Cheaper than a rework station. 1 Link to comment Share on other sites More sharing options...
Dauber Posted October 29, 2015 Share Posted October 29, 2015 The mod I did is just the opposite. On games (well, game singular -- just Beef Drop) that use both POKEY and TIA, you can barely hear the POKEY on the mod I did, but TIA is loud and clear. Ballblazer, which is 100% POKEY, is loud and clear. I bought a pack of pots to try to balance the sound, but I don't know if that's going to be a good solution. Link to comment Share on other sites More sharing options...
+FujiSkunk Posted October 29, 2015 Share Posted October 29, 2015 Perhaps it is sort of an auditory illusion. Ballblazer is strictly POKEY, while Commando contains POKEY for background music, but TIA for sound effects. Standalone the POKEY levels sound normal, but when heard in conjunction with TIA, the POKEY is drowned out due to, as Mitch mentioned, an incorrect resistor/audio mod. Actually, it affects Ballblazer as well but you don't notice because you can't hear the TIA sound being louder. It's the difference in volume that makes it noticeable in Commando. Mitch edit: Looks like Trebor beat me to it I still haven't played Commando all that much on the 7800, so I haven't compared the two directly to each other, but it's always seemed to me that Ballblazer cranks the POKEY's volume way up to get some distortion into the sound. This is especially obvious on the 5200, or at least on my 5200 anyway. If Commando doesn't amp up its music as much, that could make the differences between Commando's TIA and POKEY sounds even more noticeable than those between Ballblazer and a TIA-only game. Link to comment Share on other sites More sharing options...
Andromeda Stardust Posted October 29, 2015 Share Posted October 29, 2015 Put in a Pokey, connect the audio out to an oscilloscope. Measure the maximum peak-to-peak signal. Put in some random game with obnoxious sound effects; rinse and repeat. Peak-to-peak levels should be about the same if the mod is balanced properly. Does anyone have a Best AV modded 7800 and a Commando to test with? Not Electronic Sentimentalities or any other 3rd party AV + S-Video mod, but just Best audio + composite. Best used an "official" AV mod developed in house by Atari engineers. Link to comment Share on other sites More sharing options...
desiv Posted October 29, 2015 Share Posted October 29, 2015 I had the same issue with my modded 7800. I added a trim pot to get it evened out.. I was planning on, once I got it right, pulling it back out, measuring it, and replacing it with a standard resistor, but .. yeah, that never happened. Still a small trim pot in there.. No idea if the volume level is "correct" but it seemed like a better balance to me... desiv I think I still have a pic of it.. Man, that's a bad solder job.. Don't look at that part!! http://s1014.photobucket.com/user/villaesc/media/misc/trimpot.jpg.html?sort=3&o=5 1 Link to comment Share on other sites More sharing options...
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