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  #1  
Old 03-15-2009, 12:44 PM
KingFish KingFish is offline
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Default Conducting Proper Null tests in Pro-Tools

In ANOTHER THREAD after conducting some Null tests, we found a few inaccuracies, the biggest one, being an artifact left by the "Invert" Audio Suite plugin.

The simple work Around, is to process both audio files, with the plugin, to "Lend the artifact" to both - just process one of the files twice, to return it to it's normal phase.

The other thing, was "Dither" being recorded DURING the null bounce (RTD), showing up as "Something left over" - when it was actually "Added to the process" - using the "Stereo Dithered Mixer" in PT HD

HAVE A LOOK AT THIS VIDEO which covers all of this, and t "True accurate way" to conduct a "Null Test" - either using PTLE or the "Standard Mixer" in ProTools HD
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Old 03-15-2009, 01:48 PM
sowby sowby is offline
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Default Re: Conducting Proper Null tests in Pro-Tools

When you recorded that last bit of audio. It looked like you had the track soloed? So no audio from either of the files was actually being sent to the recording bus.
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Old 03-15-2009, 03:03 PM
KingFish KingFish is offline
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Default Re: Conducting Proper Null tests in Pro-Tools

Thanks Sowby... yeah that kind of destroys the conclusions of my test, huh? :)

I've replaced the video / repeated the tests - without solo's, and confirmed Signal flow in the new test.

Thanks for this catch.
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Old 03-16-2009, 09:54 AM
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Shifted Music Shifted Music is offline
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Default Re: Conducting Proper Null tests in Pro-Tools

Hey david. .

I will try this. but for my original test I used the MCDSP E4 to invert the phase... so maybe thats why mine was more..

will try this way
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