Serious bug for Pro Tools LE guys on Windows

AudioGeekZine

arsehole know-it-all
Jan 1, 2008
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It's been discovered that Pro Tools LE 8.0.4 places the recorded audio EARLIER than originally played. not just a few samples but up to 5000 samples early!

This was reported in August and there is no official fix for it yet.
Effected are Windows 7 and XP users
Mboxen, 003 series, 002 series
Pro Tools 8.0.4 only
Using the beta drivers for 8.0.4 with 8.0.3 works, but you may be trading one bug for another.

Eleven Rack is not effected. Does not apply to OSX users or M-Powered users.

45+ page thread on the DUC
http://duc.digidesign.com/showthread.php?t=279955
Digi says a CS update to fix this is in testing, for legal reasons they cannot give a date. It's been 6 weeks so far.

How to duplicate this test:

For all interfaces (003/003R, 002/002R, Mboxen, Eleven, etc):

* create a session with 1 click track, and 2 mono audio tracks
* bus the output of the click to the first audio track, arm the track and record it for 8 bars or so.
* disarm the track.
* mute the click track
* make sure you can hear the recorded click on playback
* connect a microphone to an available analog input
* set the input of the second track to the input with the mic attached
* put your headphones near the mic
* Arm the second audio track
* record.


For the interfaces with multiple outputs (003/003R, 002/002R, etc):

* create a session with 1 click track, and 2 mono audio tracks
* bus the output of the click to the first audio track, arm the track and record it for 8 bars or so.
* disarm the track.
* mute the click track
* make sure you can hear the recorded click on playback
* set the output of the first track to one of the analog outs
* set the input of the second track to one of the analog ins
* patch a cable from the output you chose to the input you chose.
* Arm the second audio track
* record.
Now zoom in and examine both waveforms. What do you see?
 
I bet there's a lot of guys that didn't even notice it. Otherwise it's a really stable update.


On my Windows 7 M-Powered system with 2626, I got 7 samples early @64 buffer and 4 late at other buffer sizes.
 
Christ... last time I tracked I thought the entire band was just playing way ahead of the beat :p Is there a way to downgrade back to 8.0.3 without uninstalling PT?

Also, since I've updated to 8.0.4, my control surface (003) has been really unstable, I've had error messages about PT not being able to autosave (and then getting another error message when I try to manually save), strange clocking issues out of nowhere, and lots of other stuff. Dunno if anyone else has experienced this. I assumed it was because of the firmware update but I had also just installed FG-X and some McDSP plugins and I haven't been able to isolate the cause.
 
i installed 8.0.4, but immediately removed it, it ruined the sound of my audio with clipping type artefacts. It also had a major performance drop!

looks like i'll be on 8.0.3cs2 for a while to come!

I think this happened to me too, sounded fine while monitoring but came back sounding like it was run through a ring modulator?
 
I think this happened to me too, sounded fine while monitoring but came back sounding like it was run through a ring modulator?

I had that from 8.0 to 8.0.3 so 8.0.4 has been real nice for me. Unfortunately I've had the system completely freeze up requiring a restart multiple times in the past few months.

Did you trash prefs after upgrading? Also after installing plugs it's recommended to do that.
 
I had that from 8.0 to 8.0.3 so 8.0.4 has been real nice for me. Unfortunately I've had the system completely freeze up requiring a restart multiple times in the past few months.

Did you trash prefs after upgrading? Also after installing plugs it's recommended to do that.

I did. Generally I'll get a BSOD if I try to start Pro Tools after installing plugins if I don't trash the preferences! :/