Izotope Radius Timestretching

For those wondering if this feature will be worth anything, it's worth noting that Izotope (Radius) created the Elastic Audio feature in Pro Tools and licensed it to Digi/Avid. For those unaware of what Elastic Audio is, it's basically real-time timestretching and it works AMAZINGLY. So I have no doubts that an offline version of this technology will work great as well. Here's a video of how Elastic Audio works for anyone unfamiliar:

real-time time stretching is impossible dude.

**** wrote:real-time time stretching is impossible dude.

What are you talking about?

DJ Hellfire wrote:So I have no doubts that an offline version of this technology will work great as well.

having a senior moment??

DJ Hellfire wrote:For those unaware of what Elastic Audio is, it's basically real-time timestretching and it works AMAZINGLY.

**** wrote:having a senior moment??

DJ Hellfire wrote:For those unaware of what Elastic Audio is, it's basically real-time timestretching and it works AMAZINGLY.

Have you ever even used it? In Pro Tools I can playback the session stretch or shrink audio to a different tempo without altering the pitch all while the session plays back and I can hear my changes instantly before rendering/commiting the change, which is basically performing the same action as MPC timestretch, but in real-time. Also, with Pro Tools, you don't even have to render the stretch. You can leave the elastic audio active a make changes as you need, of course at the slight expense of CPU. How you claim this is impossible is confusing since I have been using this feature since Pro Tools 7.4 back in 2008. Either way, your false claim is irrelevant to the topic at hand anyway!

i do the same things in reaper EVERY FVCKING DAY.

but this is not real time son. the audio clips are being analyzed BEFORE the actual time stretching is performed.

you see??

**** wrote:i do the same things in reaper EVERY FVCKING DAY.

but this is not real time son. the audio clips are being analyzed BEFORE the actual time stretching is performed.

you see??

Who said anything about analysis? The keyword here is STRETCH! If I can take a piece of audio and stretch the shit and hear the result as I'm STRETCHING it while it's playing back, that is real time. Doesn't matter when the software analyzes anything, as the actual stretching is being done in real time.

Shit, the DAW itself analyzes/buffers the audio before it plays it back, especially with look-ahead limiters and auto plugin delay comp. Are you gonna tell me that while your session is playing back that it's not playing back in real-time as well???

You're trying to pick out frivolous technicalities just for the sake of debating something!

roland vp9000 all the way

gertie wrote:roland vp9000 all the way

Looks nice, but I guess the guy in this vid is full of shit by calling it "real-time" being that he also says the audio is analyzed first; according to **** anyway!

you need to convert the sample first into 'elastic' format...once youve done that it will always be real time timestretching.....so its a one off action, albeit a little time consuming..30 secs or so...depends on sample size

gertie wrote:you need to convert the sample first into 'elastic' format...once youve done that it will always be real time timestretching.....so its a one off action, albeit a little time consuming

Exactly! In Pro Tools, this analysis takes less than two seconds (also depending on region size) and is typically done analyzing before you even get the mouse point back over to the audio region and ready to stretch anything. How son can sit here and say this is not real-time makes absolutely no sense!

So anyway, back to the topic, being that this same Radius technology works great in Pro Tools in Real-Time, I'm sure if works just fine offline in the MPC software! Has to at least be better than any previous MPC.

DJ Hellfire wrote:it's worth noting that Izotope (Radius) created the Elastic Audio feature in Pro Tools and licensed it to Digi/Avid.

That's a false statement. Izotope leased the Radius algorithm only. They didn't code Elastic Audio just like they didn't code Audiosnap in Sonar. It's wishful thinking to believe that because it's in PT we should expect the same performance from Numark. That even sounds far fetched.

You can install the same Bridgestone tires that propel an Ferrari Enzo and mount them on a stock Corvette. How delusional would one have to be to expect the same (or similar) speed and performance from the Chevy because of this feature? .......but hey, you got the same tires as the Enzo. That's gotta be worth bragging about.

Radius at full studio quality can't be run in realtime. It's simply not designed for that at full power. Even in Sonar you have to preview at lower quality and then render offline if you want the best results. In RX2 Advanced ( Izotopes own app) Radius is every bit as slow so you have to do the same thing. The quality can be high be speed must be sacrificed. In a groovebox or drum sampler nobody wants to watch their idea loose steam while staring at a progress bar.

No part of Pro Tools is coming to the Ren , the Ren won't have warping or audio tracks, and the rendering will be offline. This is not good example.

Has to at least be better than any previous MPC.

I agree. It's a big step up.

moyphee wrote:

DJ Hellfire wrote:it's worth noting that Izotope (Radius) created the Elastic Audio feature in Pro Tools and licensed it to Digi/Avid.

That's a false statement. Izotope leased the Radius algorithm only. They didn't code Elastic Audio just like they didn't code Audiosnap in Sonar. It's wishful thinking to believe that because it's in PT we should expect the same performance from Numark. That even sounds far fetched.

The algorithm is the whole function of the feature and determines how accurate the audio will sound. That's the most important feature of the function. Avid simply coding the graphics or whatever to make it possible for you to physically stretch the graphical region is irrelevant.

moyphee wrote:

You can install the same Bridgestone tires that propel an Ferrari Enzo and mount them on a stock Corvette. How delusional would one have to be to expect the same (or similar) speed and performance from the Chevy because of this feature? .......but hey, you got the same tires as the Enzo. That's gotta be worth bragging about.

This is a terrible analogy as there are several trims of Corvette. For example, the ZR-1, which is available from the dealer, is a stock supercar trim of the Corvette which is a competitor to the Enzo. Secondly, tires don't "propel" the vehicle, the drivetrain does.

But since you want to argue car facts with a certified auto technician, I'll entertain this analogy. I just bought a 2012 Durango. Now, the 2011+ Durango and Cherokee are built off of the same chasis as the Mercedes Benz M and G series SUV's. So even though I'm driving a Dodge, my truck still handles and rides like a Benz! Doesn't mean I own a Benz, but I still have similar comfort and performance.

So you can bet your ass that if I took the engine and transmission (heart) from an Enzo and some how made it fit into a base model Corvette, the Vette would perform much more similar to an actual Enzo. Avid took the heart of Radius and dropped it into Pro Tools and got a great functioning feature. Don't see why Akai won't have similar results, especially with a less resource hogging version of the technology!