Maybe from what Jbev said, the old SID with its support components also produced a little extra noise when changing volumes which was much reduced. News SIDs can do digis using D418 by tieing up (or down) a resisitor. It is a little like the little grey (or is it white?) annoying bits when you change D021, even if I continually change it to black (00). The Triad site had the mod but I don't know the url to it, maybe triad.c64.org? ----- Original Message ----- From: "Steve Judd" <sjudd@ffd2.com> To: <cbm-hackers@dot.tml.hut.fi> Sent: Thursday, April 12, 2001 9:45 AM Subject: Re: d418 > Hola jb, > > Thanks; I already understand the process hueristically though. What I am > wondering is if someone has an accurate technical explanation of what is > going on. > > For example, what signal is $d418 scaling, and how does it scale it? Does > it boost the signal, or does it reduce it? > > And out of curiosity, are the volume levels uniformly divided? i.e. is > volume level 5 really five times volume level 1? (Surely someone has > measured this, or would like to :). > > Thanks, > > -S > > On Wed, 11 Apr 2001 jbevren@starbase.globalpc.net wrote: > > > > > > > On Wed, 11 Apr 2001, Steve Judd wrote: > > > > > Hola, > > > > > > Could someone give me an accurate technical explanation of how d418 works, > > > and why that makes digis softer on later-model SIDs? > > > > > > My (mostly, but likely not completely accurate) impression of what goes on > > here: > > - > This message was sent through the cbm-hackers mailing list. > To unsubscribe: echo unsubscribe | mail cbm-hackers-request@dot.tml.hut.fi. > - This message was sent through the cbm-hackers mailing list. To unsubscribe: echo unsubscribe | mail cbm-hackers-request@dot.tml.hut.fi.
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