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  • VEP audio channels / instance number

    J
    J

     

    Using VEP since 5 or 6 years, now, I'm still noticing an annoying behavior.

     

    At the beginning, I tried to launch vep on my 2° pc in order to use Falcon and send fx. When I did that in only one vep instance and several audio channels (vep allows a lot of audio channels), I had audio dropouts. So I used to have one instance for Falcon and another one for vep.

     

    To day, I tried to add a channel on the fx instance. And as soon as cubase was playing the track that sends audio to that channel, the audio stoped. As soon as I hit stop playing cubase, I heard the sound coming back for a very short time and as a delay was on that vep channel, I could hear it souding the short sound that reached vep after stoping cubase.

     

    I decided to try to add a third instance, just for that new fx I wanted in order to check if it was going to work better : without the sound stopping when cubase was playing !

     

    And yes : it worked as it's suppose to... Luckily !

     

    So, my questions are :

    - why does vep work better with several small instances instead of just one with a lot of audio channels ??

     

    - Is there something to do for vep to work with only one instance and a lot of audio channel ?

     

    - If there is no workaround, why vep allows me to use so many audio channels if after 4 or 5, the audio is stoped ??

     

    I precise that I'm using a dedicated 10Go network between the 2 pc because I thought it was the 1 Go network that was not able to have so many audio channels. Now, I realize that with 10Go or 1Go, the result is exactly the same.
  • PaulP
    VSL Team
    PaulP

    Hi JoPo, 

    There shouldn't be such a massive difference, but it also depends on your PC configuration and the settings in VE PRO (how many threads are assigned to each instance).
    Did you try with different thread settings?

    Also, did you switch off ASIO Guard in Cubase for VE PRO?

    Of course the performance also depends on the plug-ins you are using. 

    Do you get the same results with all plug-ins (including Vienna Instruments)?

    Best, 
    Paul

    Paul Kopf Product Manager VSL
  • J
    J

    Thanks for reply !

    Sorry, I wasn't at home since several days.

    It may be a number of thread issue. In fact, I just wanted to add a sound toy echoboys channel on he instance I use for fx plugin channels. and as soon as sound was going into this new channel, it was like it was muted. But without the plugin too !

    The surprising thing is that with a new instance, it's working like a charm.

    My thread count setting per instance is 4 with a 4 core cpu. Would it be better to set that to 2 for 2 instances ?

    Yes ! Asio guard is disabled for VEP in cubase, otherwise, it's awful.

    Many thanks for any advice ! :)
  • J
    J
    last edited
    last edited

    I just made some test to be sure. I've got exactly the same issue with 2 or 4 threads per instance.

    When the new channel is added to the instance in which there are already 3 other fx plugin channels (2 instances, the problematic configuration), even without any plugin (!), there is no sound ! With 2 or 4 threads per instance.

    So, I'm going to set much less audio channel per instance and multiply their number... With 3 instances, in that project, I don't have any issue. It just seems a bit odd to me 😕 since the amount of audio signal data is the same in both cases.
  • J
    J

    I bring this thread back up because it remains the same with a new config and even when I use VEP server on the same computer as my daw !

    I can't believe that issue happens only to me on seceral config ! I can't find any info about the same issue on this forum. That's unbelievable.

    On the same pc = more than 3 fx send channels and there is always one or two in which the sound is cut. What is the trick to avoid that ??

    HELP !