mrcam Posted August 26, 2008 Report Share Posted August 26, 2008 Hi,I just opened a mac lc630 and was looking for the soundchip... i found nothing on the internet about that chip ??? I just know that the ASC "apple sound chip" is inside all mac models from mac 2 to mac 660 except in quadras with the introduction of the EASC "enhanced apple sound chip" (same but adding a pcm output with a sony-built sound chip )... that apple sound chip is very popular :)It seems to be 8 bits, 4-voices, wave table synth, stereo generator.http://www.ozonehouse.com/mark/cv.html Mark Lentczner worked on it.On the motherboard, I suppose that the apple sound chip is TI 4BA2E9W 343S0129-C, isn't it? Quote Link to comment Share on other sites More sharing options...
mrcam Posted August 26, 2008 Author Report Share Posted August 26, 2008 Short auto-reply... that texas instrument chip seems to be as similar as the 2 sony 3430045B chips (found in the se/30). Maybe a production under license for a stereo model.So... the "apple sound chip" family is 343-something chips and 343S-something for stereo version ;) Quote Link to comment Share on other sites More sharing options...
DrBunsen Posted August 26, 2008 Report Share Posted August 26, 2008 There have been many different chips used for sound in Macintoshes. I can tell you right now that the LC630 is 16 bit and 44kHz stereo. The first Macs were 8 bit 22kHz mono. I have no idea if they're even part of the same chip family, or from the same manufacturer.In any case, they're not that interesting from a MIDIbox point of view (IMHO), as they've just PCM - they just play and record digitised audio to/from RAM. Quote Link to comment Share on other sites More sharing options...
mrcam Posted August 26, 2008 Author Report Share Posted August 26, 2008 That is the fact... due to the lack of information on the Internet, I hoped there was a sound generator chip AND an additional pcm chip.SO not an interesting sound chip :-\ Quote Link to comment Share on other sites More sharing options...
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