DracIsBack Posted May 9, 2017 Share Posted May 9, 2017 Yeah - tuning is one part of it. Another part, IMO, is that a lot of TIA music is too high and too loud. I actually like lower pitches. Examples on the 7800 are the Dark Chambers title music and the Midnight Mutants music. Quote Link to comment Share on other sites More sharing options...
Trebor Posted May 9, 2017 Share Posted May 9, 2017 Or Matthias getting speech out of just the TIA with Tainted Love. "Relax" too. 2 Quote Link to comment Share on other sites More sharing options...
Andromeda Stardust Posted May 9, 2017 Share Posted May 9, 2017 Pitfall II bus stuffing the TIA. No reason a 7800 game can't use DCP! Quote Link to comment Share on other sites More sharing options...
DracIsBack Posted May 9, 2017 Share Posted May 9, 2017 "Relax" too. I've never heard that! Quote Link to comment Share on other sites More sharing options...
RevEng Posted May 9, 2017 Share Posted May 9, 2017 Pitfall II bus stuffing the TIA. No reason a 7800 game can't use DCP! Technically, sure. Practically, not so much. Quote Link to comment Share on other sites More sharing options...
CPUWIZ Posted May 9, 2017 Share Posted May 9, 2017 I've never heard that! Only one in existance, I think Trebor owns it, but I am getting old and can't remember. The only cart that is 1MB for a single ROM. 3 Quote Link to comment Share on other sites More sharing options...
Jinks Posted May 9, 2017 Share Posted May 9, 2017 Only one in existance, I think Trebor owns it, but I am getting old and can't remember. The only cart that is 1MB for a single ROM. This maybe a dumb question... But how does the music output thru the Tia chip what format or programming was needed. Quote Link to comment Share on other sites More sharing options...
iesposta Posted May 9, 2017 Share Posted May 9, 2017 This maybe a dumb question... But how does the music output thru the Tia chip what format or programming was needed. A value of $00 to $0F in the Volume register moves the speaker from in = $0 to out = $F. Different values created from "digitizing" sound into one of 16 values, 30 to 60 times each frame, ideally a value every scan line (even in overscan and Vblank) recreates the sound by vibrating the speaker through the volume register. 2 Quote Link to comment Share on other sites More sharing options...
Jinks Posted May 9, 2017 Share Posted May 9, 2017 A value of $00 to $0F in the Volume register moves the speaker from in = $0 to out = $F. Different values created from "digitizing" sound into one of 16 values, 30 to 60 times each frame, ideally a value every scan line (even in overscan and Vblank) recreates the sound by vibrating the speaker through the volume register.[/quote OK that's how Tia makes sounds but how do you take a song and put that into code? Quote Link to comment Share on other sites More sharing options...
iesposta Posted May 9, 2017 Share Posted May 9, 2017 A value of $00 to $0F in the Volume register moves the speaker from in = $0 to out = $F. Different values created from "digitizing" sound into one of 16 values, 30 to 60 times each frame, ideally a value every scan line (even in overscan and Vblank) recreates the sound by vibrating the speaker through the volume register. OK that's how Tia makes sounds but how do you take a song and put that into code? I use a Python script I found in the Blogs here that takes an 8-bit mono 4,000Hz wav file and packs 2 nybble values into one byte. Antic Magazine has a circuit for Atari computers and code to digitize mono audio played into the paddle pins, where the volume voltage translates into a paddle value, which then gets shrunk to the 0-15 value. . Audacity and also a Mac/Linux command line program can make a wav file into 4-bit sound. But you then need to code how to pack / unpack the output and code how to bang on the volume register. I'm sure there are other ways. I searched around a lot, but there's not too much written about 4-bit sound. There's even 1-bit sound, often called "squeakers", which I haven't figured out yet. Quote Link to comment Share on other sites More sharing options...
Jinks Posted May 10, 2017 Share Posted May 10, 2017 I use a Python script I found in the Blogs here that takes an 8-bit mono 4,000Hz wav file and packs 2 nybble values into one byte. Antic Magazine has a circuit for Atari computers and code to digitize mono audio played into the paddle pins, where the volume voltage translates into a paddle value, which then gets shrunk to the 0-15 value. . Audacity and also a Mac/Linux command line program can make a wav file into 4-bit sound. But you then need to code how to pack / unpack the output and code how to bang on the volume register. I'm sure there are other ways. I searched around a lot, but there's not too much written about 4-bit sound. There's even 1-bit sound, often called "squeakers", which I haven't figured out yet. Interesting! Quote Link to comment Share on other sites More sharing options...
Trebor Posted May 10, 2017 Share Posted May 10, 2017 Only one in existance, I think Trebor owns it, but I am getting old and can't remember. The only cart that is 1MB for a single ROM. *Shakes Magic 8 Ball*... https://www.youtube.com/watch?v=q-8lMyshslg ..."YES". Your memory is just fine. Best recording I could do for now. I'll try to upload a better quality version down the road. 3 Quote Link to comment Share on other sites More sharing options...
Stun Runner 87 Posted May 10, 2017 Share Posted May 10, 2017 1 Quote Link to comment Share on other sites More sharing options...
iesposta Posted May 10, 2017 Share Posted May 10, 2017 Here's the speech samples I added to this hacked Fast Food. 3 Quote Link to comment Share on other sites More sharing options...
Trebor Posted May 10, 2017 Share Posted May 10, 2017 Bob's Frenzy/Berzerk and Astro Blaster both contain speech samples off of TIA: https://www.youtube.com/watch?v=3GlRhgGBf_Q https://www.youtube.com/watch?v=AFH8vDrovWo 2 Quote Link to comment Share on other sites More sharing options...
Andromeda Stardust Posted May 11, 2017 Share Posted May 11, 2017 There's even 1-bit sound, often called "squeakers", which I haven't figured out yet. Fun fact, Super Audio CDs use "1-bit" audio, sampled at 2.8224Mhz! Just "duty cycle" the speaker, no DAC filter required... Quote Link to comment Share on other sites More sharing options...
ColecoGamer Posted June 2, 2017 Share Posted June 2, 2017 Hello! Please put me down for (1) NTSC copy! I Quote Link to comment Share on other sites More sharing options...
Lord Thag Posted July 22, 2017 Share Posted July 22, 2017 I'd like an NTSC one Quote Link to comment Share on other sites More sharing options...
Cousin Vinnie Posted September 7, 2017 Share Posted September 7, 2017 Not sure what the status is of this game... but I want an ntsc version as well Quote Link to comment Share on other sites More sharing options...
+save2600 Posted September 7, 2017 Share Posted September 7, 2017 Pipe-smokin' dream at this point... would love to be proved wrong though! Quote Link to comment Share on other sites More sharing options...
Jinks Posted September 7, 2017 Share Posted September 7, 2017 Pipe-smokin' dream at this point... would love to be proved wrong though! Puff puff pass Bogart!! Quote Link to comment Share on other sites More sharing options...
CPUWIZ Posted September 7, 2017 Share Posted September 7, 2017 Not sure what the status is of this game... Neither do I. Between this and Arkyology, I prepped hundreds of circuit boards, years ago. Storage sucks, when the resistors and caps are on the board already. Oh well. Quote Link to comment Share on other sites More sharing options...
Andromeda Stardust Posted September 7, 2017 Share Posted September 7, 2017 Neither do I. Between this and Arkyology, I prepped hundreds of circuit boards, years ago. Storage sucks, when the resistors and caps are on the board already. Oh well.Bummer. Unsold merch sucks. I'd have gone "ape spit" if this happened to me. 2 Quote Link to comment Share on other sites More sharing options...
Sapicco Posted September 12, 2017 Share Posted September 12, 2017 Make it happen! 1 Quote Link to comment Share on other sites More sharing options...
DracIsBack Posted September 17, 2017 Share Posted September 17, 2017 Not saying this is the case with TOKI, but one of the problems that prevent the release of unreleased prototypes is the fear that the prototype owners have of a) the drop in value; and b) no longer being the only person to have something no one else has. Klax, Sirius, Plutos, Chuck Norris: Missing In Action etc were all out there known about but unreleased years before someone generously released them. I wouldn't be at all surprised if someone in AtariAge is quietly sitting on a copy of the Atari 7800 version of Electrocop. Quote Link to comment Share on other sites More sharing options...
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