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For people wanting to do this audio mod themselves;

Take a look at:
http://nesdev.parodius.com/2A03_pinout.txt

You can see pins 01 + 02 of the 2a03 cpu output sound, channels 1+2 output from pin 01 and chans 3 + 4 + 5 output from pin 02...
Simply soldering a shielded cable from pin 01 to a 1uf or highter electrolytic cap (+ facing output) to a RCA or phono socket and another wire from pin 20 (GND) to shield on the jack would give you a nice crystal clear unmixed chan 1&2 audio, and do the same for pin 02...

You can actually do this without even turning the board over if you know where the 2a03 is on the board - make sure you use shielded cabling.

so:

pin01 -> 1uf cap [- / +] -> RCA jack
pin20 -> RCA / jack shield

pin02 -> 1uf cap [- / +] -> RCA jack
other RCA sheild / jack sheild jumper to this jacks shield

http://www.disgruntleddesigner.com/chri … tereo.html
^ more info from chris covell here (+ some info should you want to mix your output - i didnt

Hope that helps

PS - I havent done this next one yet - but I should think that, for the extra channels of audio - once you have done the sound output mods detailed elsewhere for things like the VRC7 just tap pin 03 of the EXT port and hook it up the same way to a third jack for a seperated additional chipaudio out...

See: http://wiki.nesdev.com/w/index.php/NES_ … ort_pinout
for EXT port pinout...

On the gba, depending on the replay used, when you were creating game audio you could use both sample playback -as well as- the original 4 mgb gameboy audio channels for your audio  ingame...

sometimes you would use the mgb chans for sound effects for example but certain games did use the original gameboy channels as well as sample playback for full music which was rather impressive...

hope that helps :-)

Happy Birthday chipmusic.org - you are a damn fine forum :-)

http://scenes.at/chipmusicorg
^ here, have a happy birthday ascii

\o_

plgDavid; yea - spot on there, it is work in progress tho - will be interesting to see where they take it next :-)

heya - we used to call these types of devices a "VGA box" - anything that converts an old analogue vid signal to VGA/monitor output - I've had one for absolutey years that I used to use to connect an old Super Famicom to my CRT monitor... ) it also worked well for my NES.

You should be able to find VGA boxes on ebay for pretty cheap too (especially older models)

Do note that nothing beats RGB tho )

ice cream truck music would be awesome m8

ta \o/