selfservice Posted September 3, 2007 Report Share Posted September 3, 2007 I've bought on ebay a bunch of old audio boards to finish my MidiBox FM.there was an audio board with only one digital chip, the YMF711, having the opl logo stamped on.i've found the datasheet (14MB x 44pages :o ), and i think it's a very complete and powerful solution for a syntetizer.check it out, i'm ready for developing if i find someone interested and ready to give an hand! Quote Link to comment Share on other sites More sharing options...
stryd_one Posted September 4, 2007 Report Share Posted September 4, 2007 i've found the datasheet (14MB x 44pages :o ), and i think it's a very complete and powerful solution for a syntetizer.Yeh, maybe you could summarise for us ;) Quote Link to comment Share on other sites More sharing options...
fluke Posted September 4, 2007 Report Share Posted September 4, 2007 It's an SB Pro 2 on a single chip. An OPL3, plus digital sound, mixer, microphone inputs, etc. Quote Link to comment Share on other sites More sharing options...
stryd_one Posted September 4, 2007 Report Share Posted September 4, 2007 Might be easiest to get an ISA SB Pro 2 and drive that... Quote Link to comment Share on other sites More sharing options...
abcmann Posted September 5, 2007 Report Share Posted September 5, 2007 Quote Link to comment Share on other sites More sharing options...
TK. Posted September 9, 2007 Report Share Posted September 9, 2007 Did you notice the pin count? :-/Best Regards, Thorsten. Quote Link to comment Share on other sites More sharing options...
seppoman Posted September 9, 2007 Report Share Posted September 9, 2007 Maybe a quote from the Midibox FAQ (http://www.midibox.org/dokuwiki/questions_and_answers) is in place here:Q:How hard would it be to make a synth based on (insert name of chip)?A:Generally, if you can’t answer this one yourself - too hard for you.;)Anyway, this is a whole ISA soundcard on one chip. TK mentioned the 100 pins package. Even if it would be possible to access the OPL part seperately, do you think all the effort of making a custom PCB etc. is worth the 2 Euros another soundcard would cost on the fleamarket?Accessing the other (mixer) functions is also not very interesting because the audio specs of a 10 year old 16 bit sound card are probably worse than anything that is sold today.Seppoman Quote Link to comment Share on other sites More sharing options...
DrBunsen Posted September 11, 2007 Report Share Posted September 11, 2007 Still, if you wanna build a project based around that thing, go ahead! No, it won't be easy, but if you can support all the features (the mixer particularly), woohoo! Quote Link to comment Share on other sites More sharing options...
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