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 > Pro Tools Hardware > Pro Tools HDX & HD Native Systems (Mac)

Reply
 
Thread Tools Search this Thread Display Modes
  #11  
Old 12-18-2013, 08:41 AM
Matt Hepworth's Avatar
Matt Hepworth Matt Hepworth is offline
Member
 
Join Date: Dec 2013
Location: Phoenix or SLC
Posts: 550
Default Too much latency with HDN at 44.1

Quote:
Originally Posted by Drew Mazurek View Post
Try dropping the # of cores down to 15 or 7.

Set to 15.

I'll try 7, but it becomes pointless there, as it's a native system.
Reply With Quote
  #12  
Old 12-18-2013, 08:42 AM
Matt Hepworth's Avatar
Matt Hepworth Matt Hepworth is offline
Member
 
Join Date: Dec 2013
Location: Phoenix or SLC
Posts: 550
Default Re: Too much latency with HDN at 44.1

Quote:
Originally Posted by YYR123 View Post
Hard drive speed is something to consider as well -

This is the same setup I run 100 track sessions on. Not an issue.
Reply With Quote
  #13  
Old 12-18-2013, 08:44 AM
YYR123's Avatar
YYR123 YYR123 is offline
Member
 
Join Date: Dec 2010
Location: Austin TX
Posts: 13,737
Default Re: Too much latency with HDN at 44.1

Quote:
Originally Posted by Matt Hepworth View Post
This is the same setup I run 100 track sessions on. Not an issue.
100 track sessions with card based DSP and with what buffers?
__________________
Daniel
HDX - PT12.5.1 - HD I/O 16x8x8
Win10-Pro (v1709)- 6 Core i7-6850k - ASUS X99 Deluxe ii
D-Command Main Unit - 'Ole Blue


http://www.sknoteaudio.com/ plugins rock and are affordable.
Reply With Quote
  #14  
Old 12-18-2013, 08:46 AM
Matt Hepworth's Avatar
Matt Hepworth Matt Hepworth is offline
Member
 
Join Date: Dec 2013
Location: Phoenix or SLC
Posts: 550
Default Re: Too much latency with HDN at 44.1

Quote:
Originally Posted by RyanC View Post
Hey Matt-



What is the rest of your monitoring signal flow and hardware? Phasey as in by itself or it's phasey when the cans blend with the sound happening acoustically in the room?

DA, headphone amp, cans. Blending. Really bothered me on even talking in a mic in the iso booth. Real vocalist said sounds "weird". "Not like normal." He's right. With LLM it sounds normal again (like TDM).
Reply With Quote
  #15  
Old 12-18-2013, 08:52 AM
RyanC RyanC is offline
Member
 
Join Date: Apr 2003
Posts: 668
Default Re: Too much latency with HDN at 44.1

Quote:
Originally Posted by Matt Hepworth View Post
DA, headphone amp, cans. Blending. Really bothered me on even talking in a mic in the iso booth. Real vocalist said sounds "weird". "Not like normal." He's right. With LLM it sounds normal again (like TDM).
What do you mean by blending? IE Blending analog foldback with the foldback from going through native?
Reply With Quote
  #16  
Old 12-18-2013, 08:58 AM
Darryl Ramm Darryl Ramm is offline
Member
 
Join Date: Nov 2010
Location: USA
Posts: 19,510
Default Re: Too much latency with HDN at 44.1

Quote:
Originally Posted by Matt Hepworth View Post
Set to 15.

I'll try 7, but it becomes pointless there, as it's a native system.
No necessarily pointless at all. What you should be trying to do is tune for maximum performance at a certain latency.

You don't really have 16 cores. At NCPU=15 you have only the guarantee of one virtual core and zero physical cores available for Pro Tools itself. Which may mean Pro Tools is just starved of any CPU resource, not a good thing. At NCPU=7 you at least have the guarantee of availability of one physical core for Pro Tools. Start there, and experiment.

No hyperthreading systems can deliver all the claimed virtual cores worth of performance, so just don't get hung up on these numbers, you need to find the sweet spot that delivers the maximum throughput at whatever latency you want.
Reply With Quote
  #17  
Old 12-18-2013, 09:02 AM
Matt Hepworth's Avatar
Matt Hepworth Matt Hepworth is offline
Member
 
Join Date: Dec 2013
Location: Phoenix or SLC
Posts: 550
Default Re: Too much latency with HDN at 44.1

Quote:
Originally Posted by YYR123 View Post
100 track sessions with card based DSP and with what buffers?

1024, normally. You're thinking the CPU errors may be drive related due to the low input buffer?
Reply With Quote
  #18  
Old 12-18-2013, 09:06 AM
Darryl Ramm Darryl Ramm is offline
Member
 
Join Date: Nov 2010
Location: USA
Posts: 19,510
Default Re: Too much latency with HDN at 44.1

Quote:
Originally Posted by Matt Hepworth View Post
1024, normally. You're thinking the CPU errors may be drive related due to the low input buffer?
You are on Pro Tools 10 right. That size is not just an "input buffer", it the IO buffer used through to disk etc. Making it smaller potentially makes your whole system more sensitive to everything, including disk IO performance, proper optimization/tuning etc.
Reply With Quote
  #19  
Old 12-18-2013, 09:06 AM
Matt Hepworth's Avatar
Matt Hepworth Matt Hepworth is offline
Member
 
Join Date: Dec 2013
Location: Phoenix or SLC
Posts: 550
Default Re: Too much latency with HDN at 44.1

Darryl, perhaps I'll try 13.

The thing is, my CPU (in PT) is literally at 2-4% on the test session with 24 tracks and two plugins.
Reply With Quote
  #20  
Old 12-18-2013, 09:08 AM
Matt Hepworth's Avatar
Matt Hepworth Matt Hepworth is offline
Member
 
Join Date: Dec 2013
Location: Phoenix or SLC
Posts: 550
Default Re: Too much latency with HDN at 44.1

Quote:
Originally Posted by Darryl Ramm View Post
You are on Pro Tools 10 right. That size is not just an "input buffer", it the IO buffer used through to disk etc. Making it smaller potentially makes your whole system more sensitive to everything, including disk IO performance, proper optimization/tuning etc.

Using HDN in PT11, actually. Buffer of 32 gave me errors, so I couldn't tell how the latency was. At 64 the latency is too much.
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
Automation latency when using plugins that have long latency pyrodave Pro Tools 11 2 01-27-2014 11:22 AM
omni/native latency vs mbox pro latency chrisdee Pro Tools HDX & HD Native Systems (Win) 34 03-30-2012 07:24 AM
Latency Issues - changing latency has no effect Kippa-Dee Pro Tools M-Powered (Win) 1 07-15-2010 08:39 PM
Piano VI's- Latency Latency!! MARVINBASS Virtual Instruments 5 04-27-2006 01:09 AM
Unity DS-1 and Latency... Anyone else feel the latency makes the Plugin unusable? Mt.Everest Pro Tools TDM Systems (Mac) 7 08-26-2001 04:53 PM


All times are GMT -7. The time now is 08:05 AM.


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