Discussing 4.10. Ramped or Smoothed Events Personaly, I think using events for smooth control signals is generally a very bad idea. It may be ok for pre-recorded linear ramps, but it will be hopelessly complicated for non-linear functions and real-time changing knob-style controls: how do you define the events? Ramps and linear motion are easy, but what about non-linear movements, even pre-recorded? You would have to piecewise approximate to get some usable events and how to do that in real time? And what about the precision? Events may be sample-accurate but the control function will be approximative, a bad trade-off if you ask me. Basically there are only two types of controllers, continuous (knob-style) and discontinuous (button-style), and they should be handled seperately. A knob-style control may be seen as a (low frequency) signal generator and as such should use a well defined sample rate. Let the control publish its sample rate (IMHO all generators, control or not, should do that) and/or make it accept a global control sample rate (as in CSound). Need more accuracy? Pump up the control('s) sample rate or let the consumer interpolate. A button-style control generates events and the consumer has to figure out how to respond. If the consumer wants to do a smooth transition, that's his problem. These events should be sample accurate. It may seem a good idea to define a third class of controls, like predefined function controls that can be described by a set of control points. But these functions have to be interpolated anyway, so why not do it directly at the source instead of letting every consumer doing it for himself? (And messing things up due to different function interpolation implementations per consumer.) Hints? Clues about trends? "Yeah, well I am going to do some kind of parabolic rising thing and then at 63% drop down rather quickly to 10 or so, all in about, lemmesee, 400 ms I guess." Crudesoft __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com ---------------------------------------------------------------------- Generalized Music Plugin Interface (GMPI) public discussion list Participation in this list is contingent upon your abiding by the following rules: Please stay on topic. You are responsible for your own words. Please respect your fellow subscribers. Please do not redistribute anyone else's words without their permission. Archive: //www.freelists.org/archives/gmpi Email gmpi-request@xxxxxxxxxxxxx w/ subject "unsubscribe" to unsubscribe