On Wed, Aug 29, 2007 at 11:19:55PM +0100, Folderol wrote: > I did some work on PLLs at RF mmmfty mmmf years ago and seem to remember > that they are only really effective if there is a large difference > between the controlled signal and the rate of change, which I wouldn't > have thought would be true in this case. It's not clear what exactly you mean, but anyway a the working of a PLL does not depend on 'large differences' - it can track even the most subtle changes. > This actually, isn't really what I'm after anyway. I want to do what is > potentially much simpler, I want to manage a completed MIDI recording > rather than working on-the-fly. For a software PLL it doesn't matter if it operates real-time or on stored data. But the latter makes it possible to use more advanced systems, using things like open-loop algorithms (which can very suble changes and work in non-linear ways without the risk of instability), or backtracking - reviewing previous decisions in the light of new information. But whatever approach you use, if it is capable of tracking tempo changes it will be a form of PLL, but maybe in disguise. -- FA Follie! Follie! Delirio vano è questo ! _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/mailman/listinfo.cgi/linux-audio-user
