On Sonntag 23 Mai 2010, you wrote: > There is no real magic going on, the data is sent uncompressed to the 8706 > (the decompression is done in software by the ROM) but with a variable bit > length. Stefan should have the bitlengths posted somewhere on his site. > All in all, that was the biggest challenge to figure out, I remember > asking myself the very same things back in the day like you do now :) mmmh so you are saying that its indeed simply about taking the bytes written to the 8706 data register, eventually swapping nibble- and bit-order, and then reading variable number of bits from the resulting bit stream? uhmz. i spent some hours the other day doing exactly that on paper, and couldnt really see how that should work. i can see the first "0x0a" of the data, and then the next value is wrong already, no matter how i swap and shuffle bits around. *shrug* :) > >From there, the actual synthesis is relatively easy, since the S&S patent > > has all the right formulae to be used for the filter. yeah, we have the actual parcor synthesis running (more or less, needs refinement). > I can forward a brief summary I mailed to one of the MESS developers a few > months ago, once I am back from holiday. that would be great -- http://www.hitmen-console.org http://magicdisk.untergrund.net http://www.pokefinder.org http://ftp.pokefinder.org Foolish man give wife grand piano. Wise man give wife upright organ. Message was sent through the cbm-hackers mailing listReceived on 2010-05-23 15:00:12
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