Gradual Time Stretch - Is it Possible???

I'm using logic to mix together a heap of songs. Naturally they all have different tempos.
I'm using the quick and dirty time stretch method (option+drag) on the audio clips. I'm wondering, is it possible to automate some how a gradual time stretch, so the clip starts slower then speeds up?
I guess I'm trying to emulate the changing speed capabilities of a pair of turntables in Logic.

This may not be totally what you're looking for, but check out a little free AU called Turntablist. You can find it here: http://destroyfx.smartelectronix.com/audiounits.html
You load it up in an instrument track, then load an aiff straight into the AU, and you can speed up, slow down, scratch, etc, and it sounds really nice.
If you really want an app with a lot of flexibility to manipulate files and tempo, pitch, etc on the fly, check out Live. It's much more suited to that stuff.
Good Luck!

Similar Messages

Time stretch: ramp increase/decrease

Is it possible to gradually increase /decrease the % of a video?
I have TGA footage that I’d like to begin at normal speed then gradually increase this to about 50%.
I’m fairly certain the built in Tim Stretch functionality isn’t capable of this, but was wondering if there was perhaps an expression, or clever workaround?
Any ideas?
Thanks
Jeff

Wow, you’re right..
I’ve been using Time Remapping as a method of simply jumping between time intervals..
…forgot it can be used for slow motion effects and such.
Thanks
Jeff

Time stretch has stopped working in Premiere Elements 13.

I've downloaded the latest Adobe updates. I am using a Windows 8 64 bit computer. I have previously (in the last few weeks) used time stretch to speed up and slow down without any problems but now I can't get it to work in any of my projects. All video files shot with an iPod Touch or iPhone. Has anyone else had this problem? Any ideas on how to fix it?

Chris
As a point of reference for your Premiere Elements 13 question, I have a iPod Touch 4th generation (H.264.mov 1280 x 720 @ 24 progressive frames per second), and I have no problems using Time Stretch or Time Remapping in a 13/13.1 project or other versions.
I would invoke the interference of a possible variable frame rate rather than a constant one involved with your particular type of video (from iPod or iPhone) and Time Stretch, but I am not having any problem with my iPod Touch video (with minimal variable frame rate) and Time Stretch in Premiere Elements. If you want to explore that idea further, you could convert your video's variable frame into a constant one using the free HandBrake program. Then import HandBrake's H.264.mp4 export into your Premiere Elements 13/13.1 project and determine if you can then apply Time Stretch to that clip.
Have you applied the Shake Stabilizer to your clip before trying to apply the Time Stretch? For that matter, what effects, if any, have you applied to your video clip before trying to apply Time Stretch to it?
All of the above is based on Time Stretch no working for you in a new project with new source media.
ATR

HT5146 logic 9.1.8 time stretching problem

Time stretch in logic 9.1.8 is not working in arrange window or sample editor.
The arrange window stretching causes the computer to process...but nothing changes in the audio track. Time stretching in the editor is grayed out along with other options in that window. I have tried to stretch mp3, wav, aiff from my samples collection and also my own recorded aiffs..also tried using different file locations on my drives..also have checked permissions and have restarted my computer a few times...nothing works.
I am using an imac from end of 2011 on mountain lion.
anyknows how to get this to work?
thanks

I think it's one and/or the other.. I know compressed files cause problems but I also think it might be a permissions issue of some kind too...
Converting to CAF in the BIN, seems to get around both possibilities... and so far, every time i have converted the resulting file works perfectly fine..
The bit of the Logic Guide that seems to be the clue is this bit...
Note: It is not possible to assign fades to compressed audio files, nor can you destructively edit them.
Found here....
http://documentation.apple.com/en/logicpro/usermanual/index.html#chapter=11%26se ction=4
and stretching seems to be distructive.... (not Flex but drag stretch...)
Whats odd is it seems to do it graphically but then as soon as you click on the region, it goes back to it's original size!

Where is the time stretching butten that makes it easy to time stretch with the cursor in premiere elements 13 ?

Why doesn't preimere elements have the option to trim the clip but the triming is in a matter of fact of - time stretch ? In premiere elements 10 there was a butten you could press and the curser became a trimer for time stretching. If there is an option like this in 13 I'll be happy to hear about. Thanks, Oren

Oren
What computer operating system is your Premiere Elements 13 running on? Background information for now.
In Premiere Elements 13 Expert workspace, you can access Time Stretch from the Tools Menu or use the keyboard shortcut Ctrl+R to bring up the Time Stretch dialog.
If you are interested in creating slow and fast motion effects, also see Time Remapping feature found under that Tool Menu.
As for the Premiere Elements 10 Timeline workspace, there is an icon (Time Stretch Tool with the keyboard shortcut X) I see no such icon in Premiere Elements 13.
Clicking on that icon in 10 will allow you to increase or decrease the duration of the Timeline video selected. And, if you go into the Premiere Elements 10 Edit Menu/Keyboard Customization, you will find a "Time Stretch Tool" command with the given keyboard shortcut X. At least, I do.
Even if I try to trigger a hidden "Time Stretch Tool" in 13 with the "Time Stretch Tool" shortcut X, I cannot. And, there is a Premiere Elements 13 Edit Menu/Keyboard Customization/ command Time Stretch Tool with keyboard shortcut X.
As for whys in Premiere Elements 13, you would need to take that up with Adobe who decides on the feature set for a given version. This is a user to user forum.
If you want to file an Adobe Feature Request Bug Report Form, you can use the following link
https://www.adobe.com/cfusion/mmform/index.cfm?name=wishform&loc=en
I have found some interesting hidden commands/keyboard shortcuts with exploration and experimentation. So, I may do some more exploration on this to rule in or out
any possibility of a hidden Time Stretch Tool feature in 13.

Time Stretch Problem!

Using Logic pro 9.1.5 I Noticed that when I'm time stretching a track. Once finished, The Level of the track is 3db or more lower than the Original Level !!!! Does anybody know why this happens and if there is anything to do to fix this?

Well, audio is not exactly like a rubber band, I guess it all depends on the harmonic structure of your audio and the way the stretch algorithm manipulates the data, but my knowledge of digital audio processing doesn't go deep enough to fully explain this. The way I see it is that these algorithms have some sort of safeguard feature preventing the level going up - which I imagine could also happen, given the complex interactions of sound etc etc. A rubber band behaves much more predictable - it's the same basic stuff, reacting in a way that requires very simple mathematical formulae. Audio is much more varied an complex than latex.
What you could do, purely as "scientific" exercise, is to create a 30 second audio file, consisting of a constant sinewave at 1 kHz at, let's say, -6 dBfs, and see how that behaves levelwise when stretching it (try both stretching it longer AND shorter ("negative" sretching).
You can use Logics' Test Oscillator insert effect for this, it's in the Utilities section of the plugins.
To me it would make sense that these algorithms are somehow erring on the safe side - the one thing that you wouldn't want is the level to go UP and possibly clip your audio. But again, I don't know, just trying to use logic...

Time Stretch tool won't stretch?

I have a sound effect of an explosion (pulled off web) that I need to time to a visual. The explosion audio is over too quickly, so I need to stretch it. Trouble is, when I click on the time stretch tool, my audio won't stretch beyond it's starting value. I can use the tool to shorten it just fine, but why can't I stretch it longer?
Any help would be appreciated.

I'm sorry, Milo, but if you captured your HDV video over Firewire connection, set up your project for HDV and you're using a 44.1 khz WAV file, you should not have to stretch the audio or the video.
It's possible, I guess, that you're using such an old version of the program (and possibly an older computer) and that it's having trouble playing high-def video at the same speed as it plays your audio. That would mean that they're still in synch -- they're just not playing back in the program at the same speed.
The test for that would be to use Share/Computer/WMV to output your movie (or a portion of it) as is (without changing either the audio or video speed) and seeing if it still loses synch. It really shouldn't.

Time stretch audio file to match tempo of track

Hi everyone, I am a new user of Logic express, and have found the info on this site extremely helpful, in conjunction with SFlogicninja's tutorials on youtube.
However, after watching a recent tutorial on Time stretching audio, i am now completely confused. Similar to the tutorial, i am trying to fit an audio region(an acapella track) to the tempo of the project. I have beat mapped the region to establish a tempo, but would like to experiment with slowing down or speeding up the track as a whole. As the acapella was created outside of Logic, i am bouncing the acapella track in order to be able to 'follow tempo'(as shown in the inspector). I have disabled the 'normalize' checkbox and bounced, but the bounced track still does not have the 'follow tempo' option in the inspector.
Any ideas as to why my bounced files cannot follow tempo. I can do it with audio that i create in Logic, but if i import any files, i was under the impression that by bouncing it within Logic, i could still obtain the same results?
I'm running out of hair to pull out!

Lennysapple wrote:
Oh really, it is supposed to be fixed in v 9.1.7
Then I'll have to give it a try.
Hi
Seems to work OK here
Lennysapple wrote:
Did I understand correctly that just by ""renaming"" Logic 9.1.6 inside the application folder it will keep it functioning in case I wanna revert to it later??
Yep (but you will probably still need one called "Logic Pro" to get Software Update to see it)
I have mine setup to quickly switch from 32bit to 64 bit (2 copies with different names) and also previous versions.... works fine
CCT

Looking for a time-stretching app

Can you guys recommend your favourite time-stretching app? I'd like to find an easier way of lining up transients to beats, for example.
Thanks,
Shaun

Logic Pro 8 is also the application to use for time-stretching though!
See page 525 *Time Stretching Regions* in the *Logic Pro 8 User Manual*.
shamca wrote:
I know the marquee tool, but I don't see how it can be used to time stretch ?
However, from your original post, now I'm thinking you don't really mean simple time stretching, but you mean doing something more like quantizing audio. Actually, I do use the transient capabilities of the marquee tool to find note beginnings and then move them to a bar location, which actually is a form of audio quantization.
However, Logic also has an audio quantize feature.
Check page 517 of the *Logic Pro 8 User Manual*. I have used this with varying amounts of success.
If you own Ableton Live, it has a better method (IMHO) for quantizing audio by doing something they call "warp markers". With Live, you simply place a warp marker on each transient (note start) that you wish to move, and then move it to the desired bar location. Live then time stretches your audio to match. Because it requires you to select these places, it is more seamless and has less artifacts than the algorithmic method in Logic. Still, if I only need to move a few note beginnings, I prefer to just stay in Logic and do it with the marquee tool.

Looking for an application that has great time stretch capabilities

Hello all,
I have Logic Pro 8 and I am still learning its capabilities. I do alot of sound design stuff and am looking for a spectacular time stretching application. I've fiddled with Logic's time stretch algorithms but so far I'm not thrilled with the results. I'm interested in really stetching things out to create new sounds. Here is a great example from Nine Inch Nails. It's a remix of Eraser off of Further Down The Spiral.
This particular remix version is called "Erased, Over, & Out." Here is an amazon link to have a listen.
http://www.amazon.com/gp/product/B000VZOBGI/ref=dmmu_dptrk11?ie=UTF8&qid=1212078077&sr=1-1
The vocals are EXTREMELY stretched out and take the form of a pad almost.
He is actually saying, "Erase me." Keep in mind the original vocal is only about 3 seconds long. I'd like to provide that example but the Amazon sample isn't long enough to get to that part. Maybe download it to listen. It's called Eraser, it's from "The Downward Spiral" album. (1994)
Now, does anyone know if Logic is capable of getting this good a result like the sample I provided? I've seen PT Elastic Time stretching capabilities and it sounds awesome, at least what I've heard from their demo video on elastic time. Can the same results be achieved in Logic Pro 8?
If not, what plugin do you recommend that could achieve this EXTREME time stretching stuff. Or, does anyone know what Nine Inch Nails used to get that effect on the vocals for that particular remix? I just think it's a limitless tool for sound design, but right now I'm feeling limited in the sound quality department. I know I can keep stretching and stretching and stretching the sample region but that sounds a digital mess when I get it to the point were I want it, so please, don't suggest I do that, unless you know a way to make it sound REALLY GOOD in Logic using the algorithms that come with the program. Step by step info would be lovely.
Thanx in advance...
TTW13

ported to the Mac
it's on my other Mac
is their a Mac version?
It seems a safe bet, eh..?
I'm pretty sure the mac link was posted to that thread I linked to, it's where I found out about it...
http://www.bigbluelounge.com/forums/viewtopic.php?t=35638&highlight=&sid=c2dcbfd c2af80e0fdf9da04b91319e1d

Automatic time conversion is not possible

Hi Friends,
I have a problem in Transformation Level when i am mapping "automatic time conversion is not possible for source field FISCPER to 0FISCYEAR,FISCPER3".can any one help me in this issue.
Thanks
Narasimha

Yes if it was date filed then it would have been possible.If you are trying to derive the fiscal year between datasource and cube then you can get it with the help of simple filed level routine.
Map your fiscper field from source to fiscal year--Rule type Routine.
RESULT = SOURCE_FIELDS-(Technical name of source field)+0(4).
For Posting period
Map your fiscper field from source to fiscper3 year--Rule type Routine.
RESULT = SOURCE_FIELDS-(Technical name of source field)+4(3).
This will give you the required output.
Regards,
AL

Using Time Machine, is it possible to back up a computer AFTER a specific date. I only want to back up files from AFTER January 2015. Is this possible, and how can I do this?

Using Time Machine, is it possible to back up a computer AFTER a specific date. I only want to back up files from AFTER January 2015. Is this possible, and how can I do this?

emilypdunne wrote:
Using Time Machine, is it possible to back up a computer AFTER a specific date. I only want to back up files from AFTER January 2015. Is this possible, and how can I do this?
Is what you're saying that you only want backups in TM of the state of your Mac from January 2015 to the current date and nothing before then? I'd think the simplest solution would just be to delete in TM all the backups prior to 1/15 and then let TM do its thing. The ultimate source for all things Time Machine is here. On this page, note the comment that "Time Machine will never delete the backup copy of anything that was on the disk being backed-up at the time of any remaining backup" which I understand to mean that if you delete all the backups in the TM file prior to 1/15, any file that wasn't present on your Mac as of 1/15 will no longer be represented in the TM file. Note that the second link also has instructions for how to delete TM files.
If you were trying to accomplish something else, then as Emily Litella (Gilda Radner in SNL) used to say, "never mind."

TIME STRETCH

How is the new timestretch you lucky people, im still waiting for my upgrade.

Matt Mayfield wrote:
In Digital Performer, timestretching is constructive (creates a new audio file), and when you timestretch something multiple times, it always references the ORIGINAL file. That way you avoid adding artifacts on top of artifacts every time.
Does Logic do this yet, and if not, how do you do a similar thing "by hand?"
In logic, sadly this is not yet automated. What you "should" do, is double click on the region you're going to timestrech (which will bring up the sample editor) and then back-up the audio file before performing the stretch.
The actual command is Audiofile -> Backup, but Command-B is the keyboard shortcut so you can just hit that keystroke before you time-stretch - and then you can revert without worry.
Remember that you can also set the number of time stretch undos in logic's preferences.

Hi.. I'm new to mac, I've got a mac book air and time capsule is it possible to save music,video from iTunes Store directly to time capsule leaving my 128GB Mac free? If so please help..

Hi.. I'm new to mac, I've got a mac book air and time capsule is it possible to save music,video from iTunes Store directly to time capsule leaving my 128GB Mac free? If so please help..

You can move your iTunes library.. Apple have explicit instructions to do it. If the library is moved to the TC and accessed over wireless, the efficiency of the whole system will drop dramatically..
A file you download goes.. Modem---TC--Laptop--Back to TC--Store on disk. Double looping the wireless slows it dramatically..
As far as using TC for your iTunes.. you CAN.. but SHOULD YOU?
Store files on the TC.
https://discussions.apple.com/message/24380694#24380694
This is asked several times a day.. obviously people are struggling with their latest SSD being too small.
The TC is not suitable for network file server.. but many people having no choice press it into service as such.
It cannot be partitioned. It was and is and ever shall be a backup device for Time Machine.
Major issues.
1. No backup.. no way Time Machine can backup a network drive. No place to backup to.. So all your files will be at risk. And you will need to buy a third party like CCC to do backup.
2. The TC cannot be partitioned and mixing TM backups and data is not great.
3. The drive is slow to spin up and quick to spin down.. there is no controls.
4. iPhoto in particular can easily corrupt its entire library with wireless networking causing a disconnection to one photo. Even if you do this;;; do not move your photo library... you have been warned!!
5. iTunes will constantly lose connection to the library. The disk is too slow to respond.. itunes on the computer will constantly spit out errors. Even in the midst of streaming the TC can spin down the disk due to caching.
6. Do not use any live files on the TC no matter what else you do.. if you edit files in whatever program the file must be on the local hard disk.
7. The only suitable location for most libraries is a computer. You can plug in an external hard disk.
Read pondini for some work arounds.
Q3 here. http://pondini.org/TM/Time_Capsule.html

HT201250 if I used external hard disk for backup time machine, is it possible to use that external hard disk to save another else from diffrent computers?

If I used external hard disk for back up time machine, is it possible to use that external hard disk to save another else from diffrent computers?

Welcome to Apple Support Communities
You can do this, but you should make a new volume on your external disk. Time Machine needs a volume that is only used to store backups, so you can't store other data in the same volume as the one you are using for making backups.
If you want to create another volume on your external disk, use Disk Utility to do this > http://pondini.org/OSX/DU3.html Anyway, you should get another external disk to store other files, but if you don't want to, you can create another volume in it

Gradual Time Stretch - Is it Possible???

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