I've had this issue for a while now, with certain combinations of VST instruments, when I add one more VST the new one starts going out of tune quite suddenly for no apparent reason. In my current project I'm using Play Gypsy strings, and also some of the MuSynths and Mudrums. Have tried many times messing around with the Audio Setup (changing buffer size and CPU load) to no avail. Sometimes restarting Mulab works temporarily, but after a few moments whatever the new instrument is that I'm trying to record will suddenly go out of tune a bit. Right now it's going up by nearly a tone. Any ideas? I've just finished a soundtrack and had next to no problems with it, but using mostly synthesizers. Maybe Gypsy is a lot to handle? I use Windows 8.1 64 bit, (but running the 32 bit Mulab), have 8GB Ram. Fairly new system really.
Audio: Digidesign Mbox 2 Audio
Digidesign Mbox 2 Midi
Conexant SmartAudio HD
USB Audio Device
Intel Display Audio
NVIDIA Virtual Audio Device (Wave Extensible) (WDM)
NVIDIA High Definition Audio
Playback Device
Digidesign Mbox2 Analog 1/2 (2- Digidesign Mbox 2 Audio)
Recording Devices
Digidesign Mbox2 S/PDIF 3/4 (2- Digidesign Mbox 2 Audio)
Digidesign Mbox2 Analog 1/2 (2- Digidesign Mbox 2 Audio)
VST instruments going out of tune in Mulab 5.5.1
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- KVRist
- 36 posts since 13 Aug, 2014
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- KVRAF
- 13863 posts since 24 Jun, 2008 from Europe
Never heard of such issue. The only reason i can think of is a pitchbend event somewhere? Do you have a MIDI controller connected? Maybe its pitchbender is broke a bit?
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- KVRist
- Topic Starter
- 36 posts since 13 Aug, 2014
Well I use an M Audio keystation 61. I've looked for pitchbending in parameters and nothing shows up. It's just blank. It seems to happen when I'm trying to record new events specifically. It's fine until I start playing and/or recording. Then it'll just jump up a bit.
<EDIT> Okay actually the problematic one I'm having right now I just checked and yes there's a 'pitchbend up' parameter going on. You think it's time to get a new keyboard?
<EDIT> Okay actually the problematic one I'm having right now I just checked and yes there's a 'pitchbend up' parameter going on. You think it's time to get a new keyboard?
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- KVRist
- Topic Starter
- 36 posts since 13 Aug, 2014
It could also be a USB issue, the cable I use is probably as old as the Keystation, which is about 8 years. But more probably the keystation. Odd problem, maybe dust got in the wheel.
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- KVRist
- Topic Starter
- 36 posts since 13 Aug, 2014
It's both I've noticed now. Some show a slight pitchbend, others don't.
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- KVRAF
- 3206 posts since 17 Apr, 2010 from Slovenia
Check your Midi devices (midi keyboard/controller).
I've had that insane thing happening, when my Korg M1 finally broke a little after 26 years and the modulation circuits started to freak out, sending pitch bend information out unprovoked.
It's certainly a possibility!
Other than that, I've never experienced any of such troubles in MuLab by itself.
OH, you do know about that already.
...well, let me just assure you that that's a possibility! 
I've had that insane thing happening, when my Korg M1 finally broke a little after 26 years and the modulation circuits started to freak out, sending pitch bend information out unprovoked.
It's certainly a possibility!
Other than that, I've never experienced any of such troubles in MuLab by itself.
OH, you do know about that already.
...well, let me just assure you that that's a possibility! -
- KVRAF
- 3206 posts since 17 Apr, 2010 from Slovenia
Did the monitor show pitchbend? I thought there was something funky like it only showing controller- and note events?! Could be wrong...
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- KVRist
- Topic Starter
- 36 posts since 13 Aug, 2014
Will check these tomorrow, thanks guys.
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- KVRist
- Topic Starter
- 36 posts since 13 Aug, 2014
Ok took the keystation apart and sure enough there's a weird black mark on the connecting part of the controller used for pitchbend..., probably need a replacement. In the meantime how do I block any pitchbend events in Mulab? I have to keep using this keyboard for now.
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- KVRAF
- 13863 posts since 24 Jun, 2008 from Europe
I don't see a global way to block all incoming pitchbend events. What you could do is set the pitchbend range of the used synths to 0. Not ideal as that means you can't use pitchbend envelopes either, well, more precise, they won't have effect then.
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- KVRAF
- 7412 posts since 8 Feb, 2003 from London, UK
If you're using a 32-bit Windows PC, you might be able to still use MIDI Yoke and MIDI OX to filter the events. Get the two installed, then set up a MIDI routing in MIDI OX from your hardware MIDI In and out to MIDI Yoke. On this route, add a filter to remove the pitchbend events. In MuLab, set the MIDI In to read from MIDI Yoke.
MIDI Yoke is "virtual MIDI cable"; I think there may be 64-bit Windows alternatives (Bome?). MIDI OX is a MIDI jack of all trades. I'm not aware of anything else quite like it.
MIDI Yoke is "virtual MIDI cable"; I think there may be 64-bit Windows alternatives (Bome?). MIDI OX is a MIDI jack of all trades. I'm not aware of anything else quite like it.
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- KVRist
- 234 posts since 26 Aug, 2011
Also experiencing the same thing with MUX ( VSTi ) version 7.x
I first noticed synths going out of tune ( samplers first mostly ) when changing sample rate between projects
Then Serum and other synths started to go randomly out of tune , around 1 semitone
It is not Pitch Bend ( no events in the monitor )
How can i prevent this from happening?
I first noticed synths going out of tune ( samplers first mostly ) when changing sample rate between projects
Then Serum and other synths started to go randomly out of tune , around 1 semitone
It is not Pitch Bend ( no events in the monitor )
How can i prevent this from happening?