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File analysis, file dropping, dynamic function table replacement and sizing, AAAGH HELP

#1

Hi there
I am relatively new to csound and cabbage, but have been throwing myself to the wolves with it. Im taking the class for it at Berklee, and for part of my final, I set out to make a sampler that allows me to “re-time” a sample by giving it an original BPM and length in beats, and then using the host bpm and a new length in beats. The idea is to be able to set them all to wacky uneven lengths and create long looping polymetric textures.

in the current state, I have used sndwarp to allow for realtime change of the speed using a phasor as the time pointer, and then passing that on to a pvsanal-pvsynth combo for realtime pitch control, since it seems you can’t really do that with JUST sndwarp

the hurdle I’m running into is that I really would like to have drag and drop functionality, and I took the bit from the Rory Walsh live style sample for the mouse bounds condition, and in that same if statement I am sending it to file analysis with goto. The problem is that for whatever reason, no matter where I put the file string, it will not get past the init pass because the labeled section doesn’t have the file to analyze; I get the can’t open from file error

also just generally on top of this, I feel like I have a bad case of not knowing what I don’t know, and I imagine my overall solution to this project is not very elegant, especially with handling doing the function table for the sndwarp AND the soundfiler for just the display. I know its a lot of code to sift through, but I could REALLY use some guidance on this, as I’m kinda in too deep to switch to a totally new idea this late in the semester…

this csd is just the code for a single sampler, and I tried my hardest to document thoroughly. If anyone could help me out with this I would be forever grateful. I really really want this idea to work!

Polymetric Sampler V2.csd (5.8 KB)

#2

I’m just looking through the code now. And one thing strikes me as odd. You’re testing the last file dropped in the sampler instrument, which only gets triggered when you play a note. File dropped logic should really go into an always on instrument. Can you try putting this code into the ‘play’ instrument? I’m pretty sure this is what I do in the live sampler example too. I think each ‘sampleSlot’ instrument is always on?

#3

Do you think it would make more sense to use global varibles then? Cuz with my current setup I think I had it there because I needed to pass on iLength to all the other things, so I structured it so that its in the labeled section where it is

I do see my mistake in puting it in the same place that isn’t on UNTIL the play button is hit, thanks for that haha

What are your thoughts on everything else? I feel like I’m trying to shoehorn one solution when there might be better way. I particularly have a feeling that I’m handling the function table wrong/ could handle it more elegantly, idk

Thank you so much for your help, Rory!

#4

The other things look Ok tbh. I don’t think you need any global variables. Try to get the waveform to display properly and work from there. Let me know if you get that far and still have issues :+1:

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