• SONAR
  • Setting To Reduce Total Round Trip Latency
2015/04/29 21:43:12
HighestOlive
Sorry I am reposting this, i didn't realize I couldn't delete my own post on the forum and was trying to figure out how to properly attach a picture and got move to coffee house before I could actually fix it:
 
Please don't banish me if this is not the right location to post this type of question, but I am wondering if any one feels that the round trip latency that my system is a little odd and if it is I am hoping that some of the gurus here on the forum might be able to point be towards what I can look at to help to improve it. First off to give a little bit of back ground I am using the Roland Octoacapture (sometime two of them) as my audio interface and I have the most current drivers (1.52) installed.  As for other hardware I am running a i7-3770 on a Asus P8Z77-V Pro motherboard which is loaded with 32 gb of Corsair Vengeance DDR3 1600 MHZ.
 
Currently my setting in the preferences menus are as follows:

 

 

 
It seems very odd to me that the round trip latency is so high.  It makes it nearly impossible to use the input echo to monitor while recording.  Any insight that could be offered would be great.
Thanks!
2015/04/29 21:44:10
HighestOlive
I should also mention that I am using the most recent update of Sonar Platinum Professional (ie the one that came out today)
2015/04/29 23:07:19
robert_e_bone
Yeah, I don't understand why your total roundtrip latency isn't down in the 9-11 millisecond range.
 
I'll do some digging, but I will likely have to grab some sleep first - I WILL look into this after some snoozies....
 
Bob Bone
 
2015/04/30 00:51:19
bvideo
Can you open the [ ASIO Panel ... ] button and see something useful or show it here?
2015/04/30 01:20:37
brundlefly
Download the free CEntrance ASIO Latency Tester, and measure the actual round-trip latency. I'm guessing something is causing the driver to misreport, and the actual latency is not that high. If that's the case, you'll at least want to enter an appropriate Manual Offset (CEtrance Measured RTL - SONAR-Reported RTL) to prevent SONAR overcompensating record latency until you get the driver issue figured out.
 
Also, it's unlikely to make any difference to this issue, but unless you actually want other programs to be able to use the interface while SONAR is running, I would recommend you disable Shares Drivers With Other Programs
2015/04/30 01:31:23
mudgel
Click the ASIO button and it will open the applet that allows you to change the buffers for your device try 128 first for recording. It should bring your round trip latency down below 10msec.

When your mixing you shouldn't need to have such low latency and will be able to raise your buffers to 256 or 512.

Most of us (device dependent) will have lower buffers for monitoring while recording than for mixing.
2015/04/30 05:53:48
HighestOlive
Here are the driver settings for the octacapture.  As you can see I am all ready at 128 samples.  
 

 
 
2015/04/30 05:56:59
HighestOlive
Latency Tester Results:
 

 
Looks like real latency. Having just sonar open (no project) I see this roundtrip latency reported in the driver setting.  If I open a proejct it goes to the value seen above.
2015/04/30 05:58:10
Karyn
What does "Use ASIO direct monitor" do?
2015/04/30 05:58:49
HighestOlive
Karyn,  I don't know.
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