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

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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huejahfink
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21st February 2013
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It's very rare that I am asked to do it, but I found that given a little experimentation with the various settings, Izotope's Radius can provide some convincing results whilst keeping the pitch intact.
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21st February 2013
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DL the Samplitude Pro-X demo, put it on "Universal HQ" on the time stretch tab and prepare to be amazed.

I hate doing it, I can almost always hear it, but that thing lets you get away with stuff I never would've imagined just a few years ago... Especially if you're speeding up (should be fine).
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Alécio Costa
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21st February 2013
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My experience with the tips I received today

Hi, folks

I achieved better results with the following Utilities:

a) Digidesign TIME SHIFTER PT HD 8.1.1

b) Waves SOUND SHIFTER

c) Avid Elastic Audio with Radius Algo : Poly > X Form. PT HD 8.1.1

All the tests were done going from 128 to 132 BPM and to 130 BPM.

One question:

I have the original mix files at 44k or 48K 24.

I imagine it is better to do the time streching with the original mix.

Or should I do everything with the final file mastered, let us say at 44k 24 non dithered?
It will have less dynamic range of course. Is this good or bad?

All the tests I did today was the mastered version another ME had previously cut to him last year.
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21st February 2013
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I would be more inclined to stretch before any eq etc is applied too.
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Soundmaster Alex
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22nd February 2013
Old 22nd February 2013
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I hate any plugin for this that I have tried - can hear the difference even with very small bpm changes - just sounds unnatural and glitchy.

Varispeed from DAT/CD before any processing is a preferable option (unless you don't want to pitch shift), but there is something better - I can't for the life of me remember the piece of analogue outboard that time stretches without pitch shift - anyone? Rare as that stuff that comes out of rocking horses....
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23rd February 2013
Old 23rd February 2013
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Hey Alecio - try Reaper, it has great stretching algoriddim 'Dirac LE'. At its maximal settings this algo beats all other algos I have tried. It is very slow and does not work in realtime, but we do care here about quality, not speed.
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