pitch bend overflow

[weaverid]

I must have a numerical overflow with ST2 when I use my pitch bend/stick (I have a Korg 01/W keyboard). When I bend the pitch of a sound lower ... it successfully lowers the pitch until near the end of travel of the Korg joystick ...and then... all of a sudden the pitch goes an octave or 2 higher (I am holding the stick in the full-bend-low position.)

When I look at the midi data going to ST2 I see that the wheel controller data goes from 0 to -8192. As far as I know this is a legitimate value for bending a note lower. I don't have a problem with any other soft synth.

I don't have any problem when I bend a note higher - it works for the full range of the stick. Specifically, the wheel controller data for my Korg goes from 0 to 8191 (1FFF in hex) when bending a note up.

Any suggestions?

IW

[Kim Lajoie]

Weird!

What's your host? Maybe you've got a realtime MIDI transform function activated, that's modifying the pitchbend data before it gets sent to ST2 (but does not modify the recorded data on the track)??

Check this out: ST2 has a keyboard at the bottom of the GUI. The the left of it, there are a couple of "wheels" - for pitchbend and modulation. Check what the pitchbend wheels does when you use your Korg joystick at the bottom range...

If it jumps to the top, then the problem is with the data being sent TO ST2 - probably a realtime MIDI transform function in your host.

If it doesn't jump to the top, but you still hear it, then the problem is definitely within ST2. It could be a weird instrument patch - is it only with certain instruments, or with all instruments?

Forever,





Kim.

[Meffy]

This happened to me too. I hoped it was a fluke. Here's what happened when I ran SampleTank 2 Free in the hosts I own (WinXP, 1.7 GHz Vaio):

* Brainspawn Forte 1.3 -- Works fine.
* Cakewalk Sonar 3.1.1 -- Exhibits the buggy behavior you described.
* Ableton Live 4.0.1 -- Works fine.

In Sonar, the finger-notch in the GUI wheel follows the pitch action, jumping to the top when the wrap-around occurs and back when real (physical) pitch wheel is brought back up.

Meffy

[edit]

*breaking news breaking news*

The VSTi version appears to work fine in Sonar. The DXi misbehaves.

[edit again]

Same results with Forte as the host: VSTi works, DXi acts funny. I don't know of a way to use DXi plug-ins in Live so that's all the tests I can run.

Something in the DXi implementation (or wrapper) appears to be the culprit.

[Kim Lajoie]

* Brainspawn Forte 1.3 -- Works fine.
* Cakewalk Sonar 3.1.1 -- Exhibits the buggy behavior you described.
* Ableton Live 4.0.1 -- Works fine.

In Sonar, the finger-notch in the GUI wheel follows the pitch action, jumping to the top when the wrap-around occurs and back when real (physical) pitch wheel is brought back up.

Definitely sounds like a host issue. Like I said before - it's probably the host mangling the data before it reaches ST2 (ie. ST2 is reacting normally, it's just receiving bogus data).

If the VSTi version works, then use that (unless there are some other issues I'm not aware of). You should also submit this issue to IK Multimedia support (accessible from your user area) so they know about the problem.

Forever,




Kim.

[Meffy]

Definitely sounds like a host issue.

I thought so too, but see my update above. :-( Forte shows the same behavior with DXi.

Meffy

[edit] My previous post was chaotic, revised as I tested. To summarize, then... :-)

Code: Select all

         VSTi   DXi
Forte    ok     BUG
Sonar    ok     BUG
Live     ok     --

[Kim Lajoie]

Definitely sounds like a host issue.

I thought so too, but see my update above. Forte shows the same behavior with DXi.

Meffy

[edit] My previous post was chaotic, revised as I tested. To summarize, then...

Code: Select all

         VSTi   DXi
Forte    ok     BUG
Sonar    ok     BUG
Live     ok     --

Gotcha. You said this doesn't happen with any other DX instruments? You should notify IK Multimedia support.

Forever,




Kim.

[Meffy]

Gotcha. You said this doesn't happen with any other DX instruments? You should notify IK Multimedia support.

Didn't mention. I hadn't noticed any trouble earlier today but just tested that to be sure. FM7, Tassman, Arturia Minimoog demo version, and the old gray VSC... they all handle pitch bend fine when used as DXi.

So yup, I'll contact IK about it. Weaverid, if you'll do the same, giving them the info about your host, etc., that should give them what they need.

Meffy

[last edit, I hope]

I'm using a cheesy little Evolution MK-225C keyboard, but seem to have exactly the same problem weaverid sees with a much better controller.

[weaverid]

Thanks for the input.
I am using the latest SONAR PE 3.

I must confess, when I installed ST2 - I can't remember how I installed it (VST vs DXi). Do I have to re-install ST2 as a VST with all those codes (yikes) ... and then run the SONAR adapter (SONAR only accepts DXi ... and SONAR includes a software adapter tool to convert from VST to DXi)?

I will also contact IK support.

Thanks again.
IW

[Meffy]

With luck you installed as both VSTi and DXi. :-) Start the process of adding a synth to Sonar's rack, then browse through the plug-in menus. Adapter-faked doubles and alternate formats might be buried in sub-menus.

Hope they fix this. I'll just keep using the VSTi but the purist in my soul wants both working. ;-)

Best regards,

Meffy

[mbncp]

If you are using Sonar, it may be a good idea to use the VSTi version, as the pitch wheel problem is not the only bug in the DXi, there are some routing problems too.