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Posted Mon Oct 13, 2003 3:45 AM
Posted Tue Oct 14, 2003 3:31 AM
Posted Tue Oct 14, 2003 8:40 AM
Posted Tue Oct 14, 2003 9:42 AM
Thanks for the tips,
I compared the 16-bit values in the Antic article @ http://www.atarimaga...soundpower.html against an equation I found elsewhere: 440*2^(n/12) e.g. n=0 for A.
Generally the 16-bit notes @ 1.79MHz are faithful enough,
but like you point out - its in the ears of the beholder
BTW: Here's a 16-bit RMT tune I'm working on, hopefully some of you may recognise it
Posted Tue Oct 14, 2003 10:29 AM
Did you use the generator "A" or "6"...?
But the lower tones are a kind of to distorted (no filter). They can be enhanced by "vibratos".
OK.... by using 2 16Bit channels you can get very good results... but, two channels are lost, which could be used with the "voltage"-Bit to create a very good baseline...the sound-tool has to vary between 50 and 200 updatings and the two "voltage" Voices can be used together for FM...
So, with relative small CPU usage, you will get a cool 16Bit soundchip... with 3 channels for
1 Main voice
Posted Tue Oct 14, 2003 11:50 AM
.org $0600 CLV LDA $D01F;Consol AND #$07 EOR #$07;Invert BNE skip LDA $CD ;If 0, use old settings skip STA $CD ;CD is the previous setting LSR A ;Start? BCC sel LDX $CB ;Tone1 BVC sound sel LSR A ;Select? BCC opt LDA $14 ;Time0 AND #$01 TAY ;Low bit in Y LDX $CB,Y;Alt Tone BVC sound opt LSR A BCC end LDX $CC ;Tone2 sound STX $D200;Audf1 end JMP ($00CE)
Posted Tue Oct 14, 2003 2:43 PM
Posted Wed Oct 15, 2003 12:45 AM
'6', I tried with 'A' and setting AudCtl values but this doesn't seem to work for me in RMT, each instrument shouldn't have different AudCtl values?
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