Low frequency rumble on record enabled A.I.R. Instrument tracks

[erik c]

Hi, is anyone else having this issue or could anyone see if they can recreate it on their system.

When I insert an AIR instrument like Xpand!2 into a stereo instrument track and then record enable the track within seconds a low frequency him starts to rise in volume and shows on that tracks meters. I tried it with several of the AIR instruments and it's the same for each one.

This happens even when there are no other tracks in the session.

[danander11]

Tried it here, cannot duplicate the problem. Are there effects or plugins with the analog or noise turned on? They can be noisy sometimes.

[erik c]

No other plugs except the VI.

Bummer. Could be a Hackintosh issue.

Any other Customac users care to give it a try?

Our systems are so varied so it could be specific to my configuration.

I never had any issues in PT10 though.

[erik c]

I figured out what it was. In addition to my USB midi controller I have the Presonus Fader Port connected as well via USB and it too is considered a midi controller.

Apparently if you have an instrument track and have its midi input set to "ALL" (which is the default in Pro Tools) the Presonus Fader Port sends continuous midi data to any record armed midi tracks.

I simply switched the midi input to a dedicated controller (my Axiom 49) and all is well.