Helpful ReplyCannot route Multipart Omnisphere in SONAR

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RedSkyRoad
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2017/04/24 18:26:06 (permalink)

Cannot route Multipart Omnisphere in SONAR

Hi,
 
I have two pads in a single Omnisphere instance and I want to route a MIDI channel to each and have the audio of each part route back to its own audio channel.
 
I have no issue achieving this with Native instruments Battery but I just cannot get it to work with Omnisphere.
 
Please help

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#1
RedSkyRoad
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Re: Cannot route Multipart Omnisphere in SONAR 2017/04/24 18:31:08 (permalink)
EDIT : I want different MIDI sent to each "PART" but only CHANNEL 1 seems to get MIDI.  If I set a part to channel 2, nothing is received

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bitflipper
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Re: Cannot route Multipart Omnisphere in SONAR 2017/04/24 19:26:33 (permalink) ☄ Helpfulby jacksop 2017/04/24 19:32:03
This probably isn't what you're asking, but just in case, A and B layers cannot be driven with separate MIDI channels nor routed to separate audio outputs; they are considered a single voice. 
 
More likely, you're asking about Multis. There, you have 8 slots, each of which can hold a separate patch that can be routed to any of Omnisphere's 8 audio outputs. By default, each is assigned a sequential MIDI channel (slot 1 = MIDI ch. 1, slot 2 = MIDI ch. 2). By default, they all go to OUT A, so you'll need to specify OUT B for the second pad.
 
You cannot do this with an Instrument Track. You must use 4 separate tracks, 2 MIDI and 2 audio. 


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JohanSebatianGremlin
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Re: Cannot route Multipart Omnisphere in SONAR 2017/04/25 12:08:38 (permalink)
I do this all the time with Omnisphere and its no trouble at all. Verify your process for us. How are you loading the instrument initially? Are you using a simple instrument track or separate midi/audio? When you create the midi track for the channel 2 part, are you setting its output to omnisphere?

 
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biodiode
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Re: Cannot route Multipart Omnisphere in SONAR 2017/04/25 16:38:11 (permalink)
From the limited information you have provided it sounds like you are using the default simple instrument track. Omnisphere does not like this and you have to have separate midi tracks and potentially audio tracks if you don't want everything coming out of audio channel A.
 
Therefore don't insert Omnisphere as a simple instrument then add a separate midi track, change that midi track's channel to 2 and the output to Omnisphere. If you still have problems I could try and do a video or send you a cakewalk template with Omnisphere already set up with 8 part multi.

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RedSkyRoad
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Re: Cannot route Multipart Omnisphere in SONAR 2017/04/26 02:59:34 (permalink)
Yes, I'm using Multi's and yes I use two different midi channels and 2 audio channels but as soon as I set part B to ch2, it does not receive any MIDI even though both MIDI channels are set to Omnisphere.  The outputs work correct so part A and B goes to separate audio channels but I cannot receive ch2 MIDI.

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RedSkyRoad
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Re: Cannot route Multipart Omnisphere in SONAR 2017/04/26 03:03:32 (permalink)
The reason I started going down to less instances of Omnisphere is because the more I add, the more "MIDI dropouts" i get throughout the projects.  For instance, at playback, my Kick plugin would skip beats or my Omnisphere SUB would just not play certain notes.  With each playback, its different notes.  My CPU usage is almost negligible, and the "audio" doesn't drop, you still hear previous note's reverb for instance, but like the MIDI notes just disappear..
 
Should I keep the instances of Omnisphere to a minimum?

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JohanSebatianGremlin
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Re: Cannot route Multipart Omnisphere in SONAR 2017/04/26 10:37:00 (permalink) ☄ Helpfulby RedSkyRoad 2017/04/26 15:52:37
RedSkyRoad
Should I keep the instances of Omnisphere to a minimum?


Depends. One of the current limitations we live with is that individual plugins are only able to use the processing power of a single processor core. So if you have a speedy quad core system, a single instance of Omnisphere will only use one of those cores. In cases like that, you will probably see better performance if you spread your 4 Omnisphere parts across two instances as opposed to loading all four parts into one instance.

On the other hand, if you're running a slow dual core althon chip from days of pet rocks and beanie babies, you'll probably do better to keep the plugin count to a minimum.

 
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Re: Cannot route Multipart Omnisphere in SONAR 2017/04/26 11:04:45 (permalink) ☄ Helpfulby RedSkyRoad 2017/04/26 15:52:42
RedSkyRoad
The reason I started going down to less instances of Omnisphere is because the more I add, the more "MIDI dropouts" i get throughout the projects.  For instance, at playback, my Kick plugin would skip beats or my Omnisphere SUB would just not play certain notes.  With each playback, its different notes.  My CPU usage is almost negligible, and the "audio" doesn't drop, you still hear previous note's reverb for instance, but like the MIDI notes just disappear..
 
Should I keep the instances of Omnisphere to a minimum?




This sounds more like an incorrectly set MIDI Prepare Buffer in SONAR - try increasing of descreasing it (I always forget which direction solves this!).

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pwalpwal
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Re: Cannot route Multipart Omnisphere in SONAR 2017/04/26 12:37:31 (permalink)
JohanSebatianGremlinOne of the current limitations we live with is that individual plugins are only able to use the processing power of a single processor core.


kontakt and (i think) some u-he plugins are multi-core aware/capable

just a sec

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bitflipper
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Re: Cannot route Multipart Omnisphere in SONAR 2017/04/26 13:22:06 (permalink) ☄ Helpfulby RedSkyRoad 2017/04/26 16:05:03
As a general rule, synths and samplers make more efficient use of resources when used in multi-timbral mode over separate instances for each instrument. This is true with both Omnisphere and Kontakt.
 
The exception would be on a resource-strapped machine where you're struggling with dropouts, in which case separate instances might serve you better because you can freeze them as you go. Omnisphere can be quite demanding, depending on the patch. On my old dual-core machine it was not practical to use multis most of the time. But if that's not your situation, then I'd recommend the approach you're already taking.
 
I use this technique often, driving multiple Multi slots with separate MIDI channels, so I can at least verify that it does work. I'd check the routing on your two MIDI tracks and make sure the second one's MIDI channel is explicitly set to "2:Omnisphere" in the dropdown list labeled "C" (for channel).


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biodiode
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Re: Cannot route Multipart Omnisphere in SONAR 2017/04/26 15:08:35 (permalink)
Okay this will tell us if you have an audio interface or cpu power issue. This is a link to a template I have set up with Omnisphere pre-routed to 8 midi tracks and 8 audio tracks https://1drv.ms/u/s!Ah63TBpKAVf5haQM8GYpR0TwmryO2A
If you get no sound after selecting a sound in the second channel then it may well be an audio interface issue that we will try and help you sort out. Incidentally Omnisphere can be run multi-core but you will have to set up separate instances of the VST for this to work, as each instance uses one core. For example if you have an 8 core machine you can set up 8 instances of Omnisphere and have one patch in each one.

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RedSkyRoad
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Re: Cannot route Multipart Omnisphere in SONAR 2017/04/26 16:09:35 (permalink)
bitflipper
As a general rule, synths and samplers make more efficient use of resources when used in multi-timbral mode over separate instances for each instrument. This is true with both Omnisphere and Kontakt.
 
The exception would be on a resource-strapped machine where you're struggling with dropouts, in which case separate instances might serve you better because you can freeze them as you go. Omnisphere can be quite demanding, depending on the patch. On my old dual-core machine it was not practical to use multis most of the time. But if that's not your situation, then I'd recommend the approach you're already taking.
 
I use this technique often, driving multiple Multi slots with separate MIDI channels, so I can at least verify that it does work. I'd check the routing on your two MIDI tracks and make sure the second one's MIDI channel is explicitly set to "2:Omnisphere" in the dropdown list labeled "C" (for channel).




I got it to work!!!
 
I had to remove all MIDI and audio channels and instances of Omnisphere and start from scratch.  Starting with an instrument track and then splitting them messes around with the MIDI.
 
Thank everyone for the help.  Going to check that MIDI buffering thing out now.
 
PS: I strongly doubt I have a CPU issue.  A look at my signature will confirm :)

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RedSkyRoad
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Re: Cannot route Multipart Omnisphere in SONAR 2017/04/26 16:30:16 (permalink)
KPerry
 
 
This sounds more like an incorrectly set MIDI Prepare Buffer in SONAR - try increasing of descreasing it (I always forget which direction solves this!).




I increased the MIDI buffer from the default 250 ms to 500 ms and it helped.  It seems a bit excessive considering how powerful my cpu is.  It probably also depends how much MIDI is processed.  My whole track is MIDI/VST based...

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Re: Cannot route Multipart Omnisphere in SONAR 2018/11/02 06:10:49 (permalink)
Bringing this topic back from the dead.  I have my MIDI and audio tracks set up (4 of each); MIDI input to Channels 1-4 of my MIDI Controller (M-Audio Oxygen 61) in Sonar and CH. 1 - 4 in the Omnisphere mixer. 
 
Audio Output is fine. But Omnisphere only receives data from MIDI channel 1, nothing from 2-8.
 
I want to assume this is a routing issue on the Sonar end of my system, not Omnisphere.  In my MIDI input options, I am using MIDI Channels from the Oxygen 61 sub-menu.  For everyone else, do you have a sub-menu specifically for Omnisphere ( i.e. Session Drummer 1)? Maybe I'm missing something like that on my end. 
 
Thanks for the help, all. 
 
EJ  
 
****
Update:
 
Operator Error. Was changing MIDI Channel via I/O rather than through the MIDI settings.
 
EJ 
post edited by ejmarkland - 2018/11/02 22:36:31
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