Inexplicable Track Delays After Freezing

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Dibubba
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Joined: Tue Jan 03, 2006 10:18 pm
Location: Godforsaken Fairfax, VA
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Inexplicable Track Delays After Freezing

Post by Dibubba » Sun Apr 29, 2007 5:37 pm

I’m running 5.0.1 on a Win XP Pro machine, using an Echo Layla 24, which has been in operation for years with no trouble.

Here’s what’s happening: on certain songs, typically those with a lot of plug-ins in use, I begin to hear audio distortion as my CPU utilization approaches 49% or so. At that point, I stop and freeze tracks to lighten the load.

However, when I resume recording new tracks, they have an arbitrary delay in them, and nothing I can do short of HOURS of fussing with the offsets will bring them back into alignment. Curiously, closing the track (without saving) and then re-opening it DOES NOT FIX the problem!

These are AUDIO tracks - I haven't tried MIDI.

When this first happened, I thought it was just an artifact, and went back and re-recorded the entire song. Since then, however, it’s happened on 3 songs, and I can only assume there’s a problem with the program. Whatever it is has something to do with either the Freeze function, or something being set incorrectly in the code when the CPU utilization gets too high.

Having poked around here in the forum, I went and checked my drivers (ASIO), and all is the same as it ever was - no changes. There has been no change to my machine since I began using Live; this problem is unique to Live.

SONAR works fine. Ableton songs that never approach 45% CPU utilization work fine.

While I’m at it, a question: in SONAR, there’s a function called “Process Audio” which will take the sum of a track and any plug-ins, and resample the track as an audio file with the effects included (deleting the plug-ins along the way to save CPU cycles). Does Ableton Live have this function, and if so, where?

Help?

Amaury
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Location: Ableton Headquarters
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Post by Amaury » Fri May 04, 2007 8:30 am

Hello,

First thing you should do is to use Live 5.2.2, which is the latest version of Live 5.

Let us know if it solves your problem, and if otherwise, you should write to [email protected], providing the info asked for on that page:
http://www.ableton.com/pages/support_contact

Regards,
Amaury
Ableton Product Team

Dibubba
Posts: 38
Joined: Tue Jan 03, 2006 10:18 pm
Location: Godforsaken Fairfax, VA
Contact:

Thanks, Amaury

Post by Dibubba » Mon May 07, 2007 4:05 am

Amaury:

Thanks! I do have an open Support ticket on this, and I'm working through the isssue with the Ableton team. I'm posting this update here for the benefit of anyone else having the same problems.

[Mostly] success! :)

I downloaded and installed the update, went through the audio settings again, and reloaded the song - at this point, it appears that the audio tracks are re-aligned as they should be.

I recorded one additional track, and it seems to be in synchronization again.

The only significant change I made to my hardware setup is that I set the Echo Layla's buffer size to 256 (it was at 128 before).

There seem to be two remaining artifacts after this change:
1. When recording audio, there is an audible delay between when I play a string (on the bass, for example) and when I hear it in the headphones
2. When playing a song with "Follow" activated, the cursor stutters noticeably as it flows down the track.

I can live with #2, but #1 bothers me a lot.

I am going to do some more testing this week, and will let you know what happens - I haven't had the time to work through the Latency Compensation lesson again, but I will. Once I do, I'll post an update.

Can you tell me if the Live 6 upgrade would affect the efficiency of my system? I never upgraded because I don't need video support, and I don't use many of the native Ableton effects (I was a Cakewalk/SONAR user for a decade before switching to Ableton - I have a vast collection of VST's that I've used for years, and have hundreds of preset patches written for them already). My computer needs to last for 3 more years (buying a house), but if the 6 code is more efficient, that sure would help.

Finally - I've said this before, and will say it again to anyone that listens - I think you folks at Ableton are #1 in terms of user support!

You can't help it that everybody has a different computer, or audio hardware, or whatever... but when things go worong, you're right there with assiatance. I really appreciate that, and I make the fact known to all of my musician friends - and I have "a few". To date, I've convinced 3 of them to join the Live camp, and there are 13 more I'm working on. :)

Cheers!

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