Rate at which automation change data is sent to filters?

[cbit]

I'm trying to get a particular technique working with tracktion and short circuit..

It might be that the rate at which tracktion sends automation data to it's filters might prevent it from being possible, all thoughs/opinions welcome (especially from those who use tracktion together with short circuit) details follow below:

(apologies to anyone who has already read this on the short circuit forum)

i'm aiming to recreate a rough timestretch effect in my sequencer as follows:

i draw a long line of very short midi notes, end to end. on a track that feed into SC.. SC has a drum hit (for eg) assigned to that note.

I draw an automation curve over the notes (automation 000).. and in the SC mod matrix i assign automation 000 to zone start.

But the result isn't what i was expecting (i get a clicky.. non-time stretched-sonding sound ).. if i swap automation for a temposync source in the mod matrix i get the kind of sound i was expecting.. but id like to recreate it with autmation curves for more control..

could you give an indication of the kind of values (for the curve and for the modulation amount) that would be necessary to recreate the effect with automation curves?

(heh heh, the modulation amounts get me stumped everytime.. maybe its just me.. but if its not, perhaps the modulation matrix could use some more in-depth documentation with practical examples?)

thanks again!

the automation curves are only updated on every new block by the host, so their precision time-wise might be quite bad.. (the host decides how big the blocks are, so the host can issue a new block when a new automation event occurs, but i doubt they do this very frequently)

its a shame if this is true: is tracktion sending automation updates too infrequently for this to work you think? .. are any other sequencers likely to have a higher rate of sending-automation-change-data?

[ModuLR]

what a cool idea! who'da thunk it?! gonna give it a go... what note lengths are you using?

[ModuLR]

hmm.. the temposync version doesn't sound too different than what I'm getting here via automation... very interesting stuff, I'm enjoying this emensely! the note lengths effect it pretty dramaticly as well with 1 tick being too small.

[cbit]

thanks for talking it through with me mod that helped alot..

in case anyone was following: the reason it wasnt sounding the way i was expecting was that the midi note lengths i was using were too short (although its not clear to me why that woud be a problem).. anyway, by using notes a few times longer than tracktions tiniest note length, it works well