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Help best Plug-in/algo for Time Stretching Full Mix
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Alécio Costa
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21st February 2013
Old 21st February 2013
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Question Help best Plug-in/algo for Time Stretching Full Mix

Help best Plug-in/algo for Time Stretching Full Mix

Hi,
I have 2 songs that the client insists that I time strech them before mastering them.

He wants to reduce something like 4 seconds in one song and 5 seconds in the other. MUsical style is light Rock/Pop. ( Drums, keys, guitar, vocals, acoustic gtr).

Years ago I had a TDM system where I would try Serato Pitch in Time, Wave Mechanics Speed or some algo from TC.

I imagine that there are betters tools now in 2013.

a) Which plug-in is this?

b) If I should stick to PT HD8.1.1 or 10 Elastic audio, what mode or algorithm should I test first? Ok, I should read the whole chapter of the manual, but this time in a hurry.

Many thanks for any info!
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21st February 2013
Old 21st February 2013
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izotope radius is the best i have found... using it in logic would be easiest. It is also used in pro tools 10 but it takes ages. (in protools its called xform i think)
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Alécio Costa
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21st February 2013
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Thanks!

I have just tried with TIME SHIFT by PT HD 8.1.1 and SPEED by Sound Toys.

Preferred the Time Shift version for a compression of time around 4 seconds (1.63%).


I will investigate your other options.


BTW.. Does time shift internally use elastic audio algorithm?
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21st February 2013
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I've used Elastic Audio (X-Form) for years on multitrack sessions and 2 tracks. No artifacts at all with big tempo jumps.

1. set to ticks
2. change tempo with polyphonic till you are comfortable with tempo
3. Change EA to X-Form. Go get some coffee til it's ready.
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21st February 2013
Old 21st February 2013
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X-Form is very, very good and uses the Izotope Radius algorithm.
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21st February 2013
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Hi, Tested Waves Sound Shifter Going from 128 to 132 BPM.
Mode Transient, Link Mode Time.

Very similar result to the one with Time Shift.
I am going to try other modes here ( Mode sync, punch... link mode strapped).

At this moment I am trying Elastic audio> Polyphonic Stretch > X-Form.

Just one questions: a) I selected Maximum Quality, formant enable.
Is it fine?

b) I selected commit file when disabling Elastic Audio. I could not see any activity, even at analysis screen. Strange!

I like the result!

Thanks for the tips.

Thanks
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21st February 2013
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I have never found sound shifter to be very good at this as it changes the stereo image and doesn't preserve timing either, often making things sound looser... Xform is the one!
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21st February 2013
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Quote:
Originally Posted by Dom & Roland View Post
izotope radius is the best i have found... using it in logic would be easiest. It is also used in pro tools 10 but it takes ages. (in protools its called xform i think)
Is Radius included in Logic Pro (9)?
Or do you have to buy in as an add-on?

Does it work in the Pitch&Time-Machine only or is it also available for Flex-Audio?
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22nd February 2013
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Do you have the ability to vari-speed with a Sync I/O?
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23rd February 2013
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Quote:
Originally Posted by grooveminister View Post
Is Radius included in Logic Pro (9)?
Or do you have to buy in as an add-on?

Does it work in the Pitch&Time-Machine only or is it also available for Flex-Audio?
it is a paid add on and it only works in pitch time machine.
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23rd February 2013
Old 23rd February 2013
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Quote:
Originally Posted by Alécio Costa View Post
b) I selected commit file when disabling Elastic Audio. I could not see any activity, even at analysis screen. Strange!

I like the result!

Thanks for the tips.
I actually never use commit. Takes too long. I always highlight and consolidate. Then when u disable EA, it disables instantly.
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23rd February 2013
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I also recommend Radius.
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24th February 2013
Old 24th February 2013
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The Radius algorithm is also available in iZotope's RX2 Advanced - I am also on the "recommend it" bandwagon.
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Alécio Costa
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26th February 2013
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just a silly question about x form

I did the tests last week and it was amazing.

just 2 final questions about x form:

Now I have mastered the original mixes and again, employing the X-Form Procedure.

Maybe I am missing something but how do I go from 96 BPM to 98 BPM if there is no window like Time Shift and Sound shifter that let me retype the BPMs, instead of target length in time code?

I used TIME SHIFT just to calculate the target duration when audio is at 98 BPM ( 2.08% faster). ( I had to go from 3:54:756 to 3:49:765). So I trimmed the region with poly to 3:49:764.

Also, what does formant change at X-form processing?

Thanks
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