Hello,
I've posted a very simple skelet of a grain abstraction... There is a buffer read by vd~ object, but I'm having troubles fully understand this topic... Deeper explanation of variable delay lines in attached patch would be very helpful (I would like to implement pitch shifting).
...my english sucks

Thank you very much.
Have a nice day and don't be afraid of editing the poor patch .

http://www.pdpatchrepo.info/hurleur/grrr~.pd

First things first, people need to stop apologizin' fo' they english in t'eh forum, cause in America, we don't even speak english - even Miller Puckette is down. Point is, most people that apologize probably know the grammar better than your average native speaker.

Now, does this patch make sound for you?

for vd~ to work properly you need to have a [delwrite~ $0-thisline 1000] (meaning write to $0-thisline with a maximum delay length of 1000ms)

so then you would have [vd~ $0-thisline] being fed by a float (which is your delay time in ms) going through a [sig~]

maybe I just missed the location of the buffer

your variable amplitude envelope and use of switch seem very clever to me, but I would leave it up to someone more experienced to make constructive comments. Oh yeah, that's another thing about english, you can use whatever words you want, it doesn't really matter - we've got 50 synonyms for everything - it's like doublespeak.

I'll just say this before some other smart-ass gets to. You are probably going to want to use tabread4~ instead of vd~, though combining them could be fun (in fact I think I do that in a granular patch, just to fill in gaps.) The reason I say this is that you expressed an interest in changing the pitch, which you may do with tabread4~, though of course you can't speed something (adc~) up in real-time now can you...if someone does, post it and flag it cause you invented a time machine. Another thing you can do to change the pitch is ssb modulation - I don't know what the hell it is, but it works, it's in the audio examples.

Personally I love the effect of triggering a small audio sample or adc~ above 20Hz to produce some twisted waveforms.

))

Yes, it does sound or rather the parent patch sounds as it should. I posted a fragment to keep code simple and not bother with other mess (I will definitely upload the whole work when i'll be proud of it . I just wanted to point out vd~. I read somewhere it doesn't matter if one uses tabread4~ or vd~ (is even better than tabread4~ when processing audio on fly)... they work similar way as far as "4-point interpolation" (have a little idea what does this term mean) is concerned, but the fact it accepts signal which is delay time... it's too confusing... if i ramped the signal at higher or lower speed then it should be pitched, shouldn't ? Perhaps I'm completly lost in everything. It is really disturbing when I encounter some issue I dont understand . Thank you very much once again and good night.

If it's just granular pitch-shifting using [vd~] that you're looking for, take a look at G09.pitchshifting.pd from 3.audio.examples in the help browser. It does exactly that.

I'm getting it now. Thanks.