Time Stretch

I kow how to do time stratch with sample.
But i have use VST and dont know how to do the same stratch
Please help me
Thanks :drummer:

I hope, I understand you correctly. You can “render” the VST to a sample and stretch that.

no i need stratch in real time dont export to sample

you simply cannot use the same sample technique. it depends on what VST you are using. Maybe you could do something using pitch shifting:

C-4 01 80 91 xxyy (xx = 40, yy = 00 => normal pitch)  

the last two digits of the 91 xxyy command can be used for extremely slight pitch shifting, so maybe it can help you.

I’m not into the whole time-stretch thing, just trying to give a (probably useless) hint

You could try my simple time stretching VST effect:

It’s definitely not a perfect algorithm though - it will not sound as good as Ableton Live for example - but it can be fun and useful on certain types of sound. It’s kinda nice for getting that oldskool jungle sound.

when i use drum sample i can do this with
C-4 01 80 91 40xx

But when i use Drum vst this dont work.

hmm well I probably don’t get what you are saying: 91 xxyy does not work with samples: it only works with MIDI and VST instruments.

if it doesn’t work with you VST, this is probably because you instrument is a drums specific one and it does not support pitch shifting.
So what VST instrument are you using?

i will try at home)

Ok guys i will try it home becouse now i am at work.

what VST is it?

would be abel to help you more knowing this.

you might be abel to just use the automation area.

sorry i wil try to do this.
I have big part of fu… work and i must to do it firstly.

Nice Vst effect Dblue! Is there a manual of the vst effect?

I didn’t think a manual would be necessary since it’s quite a simple effect, but here’s a bit of info if it helps…

You simply place the effect onto a track, set the Trigger parameter to “On” and the effect starts to work. While the effect is on it will record the audio into its buffer - up to a maximum of 60 seconds depending on the BufferSize parameter - and it will also simultaneously playback the time-stretched version of the buffer so you can hear the effect instantly. You can only slow down the audio since it is impossible to speed it up in realtime. When the playback position reaches the end of the buffer the effect will simply turn itself off. Depending on how much you stretch the audio this could be quite a long time.

The Ratio and Multiplier parameters control the amount of time-stretching which is applied. A ratio of 1:2 will produce a result which is twice as long as the original, 1:4 will be 4 times as long, etc. The multiplier will multiply the ratio, so when you combine these 2 parameters you can get a maximum ratio of 1:220 - in other words you can convert the maximum buffer size of 60 seconds into 13200 seconds, which is 3.66 hours! Serious experimental drone music, hehe.

When the Hold parameter is enabled the buffer playback position is paused indefinitely, creating a kind of retrigger effect. You can hold it like this forever if you want to while adjusting things like the GrainSize parameter, which results in a very interesting kind of sound. Think of Neo when he gets sucked into the mirror in The Matrix, or the glitchy effects from Autechre’s track “Gantz Graf”.

The X-Fade parameter sets how much crossfading is applied between each grain of audio. A lower amount results in a sharper sound which might be better for percussion/drumloops, and a higher amount results in a smoother sound which could be good for weird ambient noises.

Anyway, hope that helps. Here are a few demo sounds I made months ago:

And just for fun, here’s an .XRNS (Renoise 1.8 RC2) demo which shows the simple fun you can have with a couple of LFO devices :)



Thanks man :yeah:

dblue stretch rules ! instant jungle is maaassssssiiivvvvveeee sound :)

Dude, get a mac so that leaches like me can reap your hard work please.


you can create a “timestretch-effect” with following commands


works even in modplug ^^

09xx - Trigger sample offset, 00 is sample start, ff is sample end. Offset positions are related to the total sample size in Renoise mode. The larger the sample, the more inaccurate stepping will be (Using Amiga/FT2 mode, ff means the 255th block of 256 bytes). (Sample instrument related only)

I nead Do this For VST

sorry E - command was working.
It was my mistakes(((