|
|
|
06-06-2008, 02:01 PM
|
#1
|
Human being with feelings
Join Date: Oct 2006
Posts: 91
|
Problems with playback of 40 audio-tracks.
I have a problem with playing 40 audio-tracks (24bit stereo each) at the same time. Performance meter doesn't show hi CPU or memory load, but i have glitches etc.
My config^
core 2 duo 1,8 GHz
2 Gb RAM
ESI Juli@ soundcard with ASIO driver
I usually work with MIDI without any problems, so now i'm a bit confused...
|
|
|
06-06-2008, 02:05 PM
|
#2
|
Human being with feelings
Join Date: Nov 2007
Location: Denver, CO
Posts: 153
|
Could it be disk i/o? Perhaps you should mess with your buffer sizes.... You're pumping a lot of data right now.
|
|
|
06-06-2008, 02:24 PM
|
#3
|
Human being with feelings
Join Date: Jun 2007
Posts: 2,301
|
Are your audio tracks on a secondary dedicated (data only) drive???
That's your best bet.... (in fact a 7200rpm drive will handle upwards of 100 tracks.)
Drive C: - OS and apps
Drive D: - Audio and misc data
Drive E: - Sample libraries
Do not use partitioning.
Use dedicated drives.
Dedicated throughput is your goal.
---------------------------------------------------
My XP laptop runs firewire to a Motu828mkII daisy-chained to a Glyph firewire drive for audio files, and I use a Seagate USB2 for sample libraries and video editing.
First thing I do when I test a new DAW is load up 35 stereo 24bit/44.1khz tracks (more than I ever use) and watch the load. Mine runs at 10-15% and I have ZERO problems....
|
|
|
06-06-2008, 02:26 PM
|
#4
|
Human being with feelings
Join Date: Oct 2006
Posts: 91
|
Quote:
Originally Posted by themensch
Could it be disk i/o? Perhaps you should mess with your buffer sizes.... You're pumping a lot of data right now.
|
could you maybe adjust some settings for buffer sizes for such task?
|
|
|
06-06-2008, 02:32 PM
|
#5
|
Human being with feelings
Join Date: Oct 2006
Posts: 91
|
Quote:
Originally Posted by TimOBrien
Are your audio tracks on a secondary dedicated (data only) drive???...
|
C: OS
D: Installed Reaper, vst plugs and audio-files
C and D are dedicated 7200rpm drives
|
|
|
06-07-2008, 08:05 AM
|
#6
|
Human being with feelings
Join Date: Nov 2007
Location: Denver, CO
Posts: 153
|
Quote:
Originally Posted by medea
could you maybe adjust some settings for buffer sizes for such task?
|
That's my thought. You might also try cranking up the latency if you're done tracking.
|
|
|
06-07-2008, 08:06 AM
|
#7
|
Human being with feelings
Join Date: Nov 2007
Location: Denver, CO
Posts: 153
|
Quote:
Originally Posted by medea
C: OS
D: Installed Reaper, vst plugs and audio-files
C and D are dedicated 7200rpm drives
|
What interface is d:? usb2 might be problematic.
|
|
|
06-07-2008, 03:54 PM
|
#8
|
Human being with feelings
Join Date: Oct 2007
Posts: 23
|
I think you should have OS and Reaper on one disc and the data/audio files on the other!
|
|
|
06-08-2008, 02:25 AM
|
#9
|
Human being with feelings
Join Date: Sep 2007
Posts: 642
|
Perhaps you are not using Asynchronous unbuffered in advanced disk i/o settings? It is not on by default, I don't know why. But it gives the best disk performance.
|
|
|
06-08-2008, 01:05 PM
|
#10
|
Human being with feelings
Join Date: Jun 2007
Posts: 2,301
|
Quote:
Originally Posted by medea
C: OS
D: Installed Reaper, vst plugs and audio-files
C and D are dedicated 7200rpm drives
|
You do not have to put Reaper and VSTs on another drive.
Applications and VSTs get read ONCE when they are initialized. The disk is not hit again while you are working.
You want the audio throughput in and out to be uninterrupted by any OS calls.
C: OS, applications and VST folder
D: Sample libraries
E: - Z: Independent audio and misc data drives
|
|
|
06-08-2008, 05:54 PM
|
#11
|
Human being with feelings
Join Date: Aug 2007
Posts: 221
|
Hi medea, i know someone who had a similar issue recently, and it was related to his video card. The remedy was to lower the graphics cards acceleration settings to operate under "best performance", after this everything was fine strangely enough. Hope this helps.
|
|
|
06-09-2008, 08:17 AM
|
#12
|
Human being with feelings
Join Date: Apr 2008
Location: Wales, UK
Posts: 757
|
Quote:
Originally Posted by Anomaly
Perhaps you are not using Asynchronous unbuffered in advanced disk i/o settings? It is not on by default, I don't know why. But it gives the best disk performance.
|
Anomaly, can you elaborate on this a bit? I've not been into this dialog before, but I now see that I have Read set as Asynchronous (buffered) and Write set as Asynchronous (default). Should I amend these settings?
|
|
|
06-09-2008, 12:11 PM
|
#13
|
Human being with feelings
Join Date: Apr 2008
Posts: 173
|
"I have a problem with playing 40 audio-tracks (24bit stereo each) at the same time. Performance meter doesn't show hi CPU or memory load, but i have glitches etc."
40 stereo tracks. That's actually 80 tracks right?
What's the sample rate?
How many Plugs?
Even 80 tracks at 44.1/24 can get glitchy on a 1.8 2MB system.
Maybe it's just a matter of setting the buffer higher?
I'm no pro on how computers run but 80 tracks at 24 bits seems like a decent amount.
Are you mixing for Paramount Pictures? :0)
|
|
|
06-10-2008, 01:18 AM
|
#14
|
Human being with feelings
Join Date: Sep 2007
Posts: 642
|
Quote:
Originally Posted by Mudchild
Anomaly, can you elaborate on this a bit? I've not been into this dialog before, but I now see that I have Read set as Asynchronous (buffered) and Write set as Asynchronous (default). Should I amend these settings?
|
I don't know any technical background but Asynchronous unbuffered seems to give A LOT better disk performance. Actually as I have noticed myself, Asynchronous unbuffered is required if you have a big project. Some while a go Asynchronous unbuffered was the reaper default mode, but then it was changed to Asynchronous buffered.
I'm not sure what are the disadvantages of Asynchronous unbuffered, but probably it might be a bit higher cpu usage compared to Asynchronous buffered. Have you tried it yet if it helps in your case?
|
|
|
06-10-2008, 01:44 AM
|
#15
|
Human being with feelings
Join Date: Mar 2006
Posts: 928
|
I am also experiencing problems with playback - that I did not experience with earlier versions. I have reported this in the bug section as it is not a problem with two other audio apps. Asynchronous unbuffered does not solve this problem for me.
|
|
|
Thread Tools |
|
Display Modes |
Linear Mode
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
All times are GMT -7. The time now is 08:40 AM.
|