Topic: Ableton UFX buffer corruption when editing MIDI
Hi Guys
Hope you can help. I have a lot of programming to do, and keep hitting a strange behaviour when using a UFX with Ableton.
The setup is an 8core i7 with Asus mobo, Win10, an Orico USB 3 powered hub, and plugins from Toontrack and Spectrasonics. The Orico hub has proved stable on other machines. I have sample buffers set to 96 samples and it's fine at 48kHz.
So it's perfect when you treat Ableton as a host only, and use an external sequencer. No issues. But record that MIDI into Ableton to edit visually, and the buffers get scrambled when you move note events. The only way to get it back is to change the sample rate of the driver, from 48kHz to 44.1kHz and back, which clears it.
Is anyone else experiencing this kind of oddness? I can edit MIDI all day if not using plugins, but try to use plugins and I get very odd results. Playback is flawless. The error count in the RME driver increments when this happens, to things like 0/34 (what on earth does this actually tell me!?). Latest driver installed.
The Novation Launchpad is in the hub too. That is losing connectivity quite regularly too, demanding an insertion event. I did recently activate the MMCSS option in the driver. Can't imagine that messing with it. Ableton is v9.7.7. I could link the plugins via Ensemble if this would help.
I have read that the Orico hubs use VIA USB 3 chips.
We have a Jetway built PC here with an Orico and do not experience these issues. I have several hubs to swap between too.
If anything here sounds familiar, please chime in. I'd love to get to the bottom of it. I can work, but the fun has gone from editing. Feels like I am fighting it, rather than flowing with it.
Thanks in advance.