Avid Pro Audio Community

Avid Pro Audio Community

How to Join & Post  •  Community Terms of Use  •  Help Us Help You

Knowledge Base Search  •  Community Search  •  Learn & Support


Avid Home Page

Go Back   Avid Pro Audio Community > Legacy Products > Pro Tools 2019

Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 03-22-2020, 01:15 PM
scottgreiner scottgreiner is offline
Member
 
Join Date: Aug 1999
Posts: 885
Default Recordings not placed in timeline accurately

Pro Tools 2019 is placing recordings late in the timeline. I tested it with a consolidated click sent out and back in again:



This is rock-solid on Logic Pro. Anyone else experiencing this?

Macbook Pro 2012
OS 10.14.6
Pro Tools 19.12.0.534
Universal Audio Apollo x8p

Last edited by scottgreiner; 03-22-2020 at 01:29 PM.
Reply With Quote
  #2  
Old 03-22-2020, 02:37 PM
XJENSEN XJENSEN is offline
Member
 
Join Date: Dec 2004
Location: Gent, Belgium, Europe
Posts: 505
Default Re: Recordings not placed in timeline accurately

I see 1024 samples delay. What's your H/W buffer set at?
Reply With Quote
  #3  
Old 03-22-2020, 02:54 PM
Darryl Ramm Darryl Ramm is offline
Member
 
Join Date: Nov 2010
Location: USA
Posts: 19,510
Default Re: Recordings not placed in timeline accurately

Quote:
Originally Posted by scottgreiner View Post
Pro Tools 2019 is placing recordings late in the timeline. I tested it with a consolidated click sent out and back in again:



This is rock-solid on Logic Pro. Anyone else experiencing this?

Macbook Pro 2012
OS 10.14.6
Pro Tools 19.12.0.534
Universal Audio Apollo x8p
As pointed out, looks like you are just seeing the IO buffer here.

What are you doing/recording when you have your actual problem? What IO buffer size are you using there? Measure the latency in samples in Pro Tools if you can and let us know what that is ... much more helpful that "late in the timeline".

And since you are using UAD. If you are trying to track, hopefully you are being careful with using UAD plugins in Pro Tools, not requiring that to have you run with large IO buffers. Disabling any of those plugins, freezing or printing tracks and running with a small IO buffer. And if you need UAD plugins in monitoring paths maybe doing all that in the UAD console.
Reply With Quote
  #4  
Old 03-22-2020, 08:25 PM
scottgreiner scottgreiner is offline
Member
 
Join Date: Aug 1999
Posts: 885
Default Re: Recordings not placed in timeline accurately

My buffer is at 1024, and that's the amount that the recordings are late in the timeline. You can see the highlighted selection in the transport.

Every interface reports its buffer latency to the DAW via its driver, and the DAW places recordings into the timeline correctly per that amount, regardless of buffer setting. This normally works perfectly in Pro Tools, and now it doesn't. To be sure it wasn't a firmware error in the Apollo, I did the same test in Logic Pro - it was spot-on:


Last edited by scottgreiner; 03-22-2020 at 08:39 PM.
Reply With Quote
  #5  
Old 03-23-2020, 06:21 AM
its2loud its2loud is offline
Member
 
Join Date: Dec 2014
Location: Los Angeles
Posts: 2,303
Default Re: Recordings not placed in timeline accurately

Remove any plugins in the record path. Check again. Then start adding plugins, one at a time.
Waves H-eq was causing major latency in the record path for me, so I ditched it.
Reply With Quote
  #6  
Old 03-23-2020, 06:35 PM
scottgreiner scottgreiner is offline
Member
 
Join Date: Aug 1999
Posts: 885
Default Re: Recordings not placed in timeline accurately

There are no plugins in the session. It sounds like no one else is having this problem?
Reply With Quote
  #7  
Old 03-24-2020, 09:27 AM
Brightbelt's Avatar
Brightbelt Brightbelt is offline
Member
 
Join Date: Feb 2011
Location: SAVANNAH, GA
Posts: 39
Default Re: Recordings not placed in timeline accurately

Pro Tools will shift midi and other tracks even, if I have any plugins on the Master Bus while I am recording. I always have to make 'inactive' everything on the Master bus before recording.

Also, FYI, doing a 'Bypass' is not enough. 'Inactive' works for me.

This may not be what you are experiencing. But info is always good to share.
Frank
Reply With Quote
  #8  
Old 03-24-2020, 10:42 PM
Darryl Ramm Darryl Ramm is offline
Member
 
Join Date: Nov 2010
Location: USA
Posts: 19,510
Default Re: Recordings not placed in timeline accurately

Quote:
Originally Posted by scottgreiner View Post
My buffer is at 1024, and that's the amount that the recordings are late in the timeline. You can see the highlighted selection in the transport.

Every interface reports its buffer latency to the DAW via its driver, and the DAW places recordings into the timeline correctly per that amount, regardless of buffer setting. This normally works perfectly in Pro Tools, and now it doesn't. To be sure it wasn't a firmware error in the Apollo, I did the same test in Logic Pro - it was spot-on:
The big buffer(s) that might provide high latency are not in the interface and Pro Tools does not really need that reported by a driver... it's hopefully setting that value. Pro Tools normally corrects for this in placement in the timeline. .. unless it's confused (like when sharing output paths see my last comment). Pro Tools standard does not correct for converter latency, Pro Tools Ultimate/Professional does, at least on HD hardware AFAIK.

What happens when you set the HW Buffer Size to as small as it can go? Do you still see a ~1024 sample latency? If so you are seeing the fixed size (1k, 2K, 4K depending on sample rate) playback buffer not the "HW buffer" that you are adjusting in the playback engine settings.

What exactly are you doing here? What exact signal paths, inputs and outputs on the tracks. Make things as simple as possible with just two tracks in a new session. Make sure that the track you are playing back and the track you are recording to have different output paths.
Reply With Quote
  #9  
Old 03-27-2020, 02:01 PM
scottgreiner scottgreiner is offline
Member
 
Join Date: Aug 1999
Posts: 885
Default Re: Recordings not placed in timeline accurately

The late placement corresponds to the buffer size. I switched to 64 sample buffer and it follows:


What led me to investigate was laying down a quick scratch-bass line to a loop - no plugins in the session. Upon playback, I was appalled at how out-of-the-pocket my playing was. Seemed pretty spot-on while I was playing it! So I consolidated a section of click; sent it out a line output; and plugged that back into the Hi-Z input of the Apollo where the bass was plugged into; and recorded the result. As you can see, it's placed into the timeline late by the buffer amount.

I've been using Pro Tools since Sound Designer, and have had many different interfaces, including an HD rig. This is a bug, or at least something wrong with my system. As I said earlier, other DAWs aren't exhibiting this problem - just Pro Tools Ultimate 2019.

Last edited by scottgreiner; 03-28-2020 at 09:16 AM.
Reply With Quote
  #10  
Old 03-30-2020, 02:50 AM
EdwardG's Avatar
EdwardG EdwardG is offline
Member
 
Join Date: Apr 2015
Location: UK/Finland/Spain
Posts: 100
Default Re: Recordings not placed in timeline accurately

this kind of misbehavior has populated Protools since forever they just cant get it right...
Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Is committing EA impossible to do accurately? Orrin Tips & Tricks 9 06-29-2017 09:29 AM
Does PT10 Sync Accurately to MTC ? midifirst Pro Tools 10 11 02-14-2012 08:38 PM
Waveforms Not Displaying Accurately. Anybody? alex@action 003, Mbox 2, Digi 002, original Mbox, Digi 001 (Mac) 5 06-19-2009 05:22 PM
How to accurately spot HD QT in Pro Tools? Drew1 Pro Tools TDM Systems (Mac) 2 07-30-2006 12:16 PM
001 WILL NOT sync accurately to ADATs(I think) Tex Tiles 003, Mbox 2, Digi 002, original Mbox, Digi 001 (Mac) 5 11-24-2000 08:33 PM


All times are GMT -7. The time now is 06:15 AM.


Powered by: vBulletin, Copyright ©2000 - 2008, Jelsoft Enterprises Limited. Forum Hosted By: URLJet.com