Citing Pierre: "At the moment if you drag to -40 dB you force to -Inf dB."
If that is true then you should have little trouble even without using mute. (At least as far as I understand it). There is however a discussion going on to place the lowest level at -96dB in the future. This is logical, because most of us use 16bit sound (same as CD player). 16bit -> 2^16 = 65536 Which means that there is exactly 65536 possible levels that sound signal can occupy. But because 1 bit is used for the sign (+ or -) we can actually only use one half, 32768 levels. To put it in simple words - to make the loudest noise completely silent, you must divide it with more than 32768 in order to make it 0. Now let us put it into decibels: x[dB] = 20log y if y = 32768 then x[db] = 20log (32768) = 20 * 4,515 = 90,3 x = 90,3 dB so if you divide 32768 with 96dB (63095,73 really) then it should set to 0 even the loudest possible sound with highest possible smoothness. But if this will be applied, your keyframes set to -40dB may be heard. (-40dB = 100 ---> 32768 / 100 = 327,68) Of course things now work in such a way (according to Pierre), that any sound divided by 100 or more is automatically muted (how this is realized, I don't know). At least this is how I understand things. But if I am wrong, someonen please correct me. Please forgive my curiosity but... Can you give me one example of the situation where so strict requirements (such as you mentioned before) regarding the sound leves must be met. All the best! Miha On sob, 2006-09-30 at 22:41 -0700, Robert Persson wrote: > On Sun, 2006-01-10 at 08:27 +0930, Pierre Marc Dumuid wrote: > > Current SVN should now be more workable (see thread as I actually > > described the issue as being a fact of shared range), since automation > > ranges are more sane. > > I'm having trouble understanding some of the technical stuff here. Does > what you're saying mean that I should, with current SVN, actually be > able to fade smoothly to nothing (or at least to as close to nothing as > makes no difference)? Miha's workaround is probably as good as you can > get with the current cinelerra release, but it still sounds like there > would be an audible glitch between low volume and mute. Have I > misunderstood this? The fact is that I won't be able to make practical > use of cinelerra unless I have full control of the sound levels. > > Appreciatively > Robert > > > > > > > _______________________________________________ > Cinelerra mailing list > [email protected] > https://init.linpro.no/mailman/skolelinux.no/listinfo/cinelerra > _______________________________________________ Cinelerra mailing list [email protected] https://init.linpro.no/mailman/skolelinux.no/listinfo/cinelerra
