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Old 09-30-2011, 03:11 PM
OutOfExile OutOfExile is offline
Join Date: Sep 2011
Location: Ferndown
Posts: 2
Default Distorted audio with Lexicon Alpha in Pro Tools

I've been experiencing a lot of issue with Pro Tools 9, mainly focused around trying to use my Lexicon Alpha interface to record and playback with my session. When I attempt to monitor or playback any audio in my session, all I hear is a heavily distorted sound that is considerably louder than it should be.

So far I'v tried a lot to resolve this, such as changing the settings in the playback engine and changing the independent settings of my interface through the hardware dialogue box in Pro Tools, but anything I touch in the playback engine cases a torrent of error messages whenever I try to do anything, where as any changes I make under hardware are instantly forgotten.

I've also updated to the latest version, deleted the database and preferences folders and even reinstalled the whole program, with no noticeable effect on this issue. Also, the problem only occurs with my Lexicon Alpha, but my internal sound card works just fine. In addition to this, the Lexicon Alpha works fine through other programs (Cubase, Audacity ext) so the problem is only affecting Pro Tools.

Any help on this matter would be greatly appreciated! Seeing as the whole reason why I upgraded was for the 3rd party hardware capabilities.

Thanks in advance!
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Old 09-30-2011, 05:29 PM
albee1952 albee1952 is offline
Join Date: May 2004
Location: nashville
Posts: 33,512
Default Re: Distorted audio with Lexicon Alpha in Pro Tools

What driver are you using for the Alpha? When I tried the ASIO4ALL universal driver with my Fast Track Pro, it was all distortion. With the proper M-Audio drive, it works fine.
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Old 10-01-2011, 08:07 AM
OutOfExile OutOfExile is offline
Join Date: Sep 2011
Location: Ferndown
Posts: 2
Default Re: Distorted audio with Lexicon Alpha in Pro Tools

Thank you for your advice! I checked my Lexicon Alpha driver and sure enough I was on version 1.x of the driver, while the latest version is 2.7! I updated the driver and now everything works perfectly.

Thanks for your help!
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Old 09-27-2015, 03:25 PM
jimbob2015 jimbob2015 is offline
Join Date: Sep 2015
Location: scotland
Posts: 1
Default Re: Distorted audio with Lexicon Alpha in Pro Tools

alrighty. i have pro tools 10 hd and lexicon alpha interface. when i choose hardware and the "alpha" it says some mad error message. pro tools recognises its there but wont load. any ideas. i have updated the driver to 2.7 but it still wont recognise it.


Last edited by jimbob2015; 09-27-2015 at 03:26 PM. Reason: missed a bit
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