Hi,
 
I'm experiencing problems for the first time with Sonar 8.5 producer.
I opened two instances of Colossus by East West.
My computer : Intel Core i7-2600K CPU 3.40 GHZ 16 Go RAM and Win 7 64 bits.
The problems occurs when I convert to audio tracks my midi tracks.
If I work only with midi tracks, no problem.
 
Hope you can find my problem.
Here is the mp3 file I made, you can hear problems around between 45' and 55' to begin.

 
Thanks for your help
 

Sorry, I'm on my phone and couldn't listen, but if the problem only shows up after a bounce then your best bet is to try a slow bounce. It's not a RAM problem but could be an IO bottleneck.

What effects do you have loaded in this project?
 
What Driver Mode are you using (ASIO?, WDM?)
 
IF using ASIO, what is your ASIO Buffer Size set to?
 
What are the Sonar-reported latency values in Preferences?
 
Bob Bone
 

There are no effects at all for the moment.
I'm using ASIO driver.
Asio buffer is set to 64.
Latency value is 128.
Hope that helps
 

I recommend to enlarge the buffersize during bounce process,
up to 256 samples....
regards

It works great !
I had to lower the buffer size because I had too much latency with my keyboard and virtual instruments.
Now, what do you advice ?
Keeping the buffer size low while working with MIDI and setting it to 256 just for bouncing ?
Is there a way of setting up my system and avoid changing the buffer size all the time ?
 
Thanks very much for your help.
Alex

Unfortunately, no. Buffers need to be adjusted manually by the user. Lower buffers for recording and higher buffers for mixing are common changes required.

Yes! This is quite common.
 
You need low latency for recording but when it come to mixing it can be as high as your system needs in order to function properly.
 
 

I would like to add that if you have plugins loaded into a given project, and those plugins use Look-Ahead processing, or consume massive CPU, that you may well not be able to use those during tracking/recording, but rather would need to add them when starting to do the mixing stage.
 
That's just something to tuck into the back of your brain for someday.  :)
 
Bob Bone
 

Yes Bob, very true.
 
Because I usually mix as I go, it's become second nature to simply hit 'e' for tracking / testing out riffs & sequences (for which latency for me is a no-no), bypass all effects and hit it again when I've done.
 
This often makes it unnecessary to adjust buffer settings.