tannhaeuser

Yes, only when both sides of the AUX cable is plugged, the MIDI output stops working in Pianoteq. I can still see the MIDItoUSB as selected in Pianoteq's Audio Preferences, but no MIDI event is registered.

When I plug the AUX cable to line-in.

Hello, I just received my Casio GP-510 yesterday and started setting it up. I use Pianoteq and want to direct the Pianoteq sounds to the piano's speakers. I have a USB cable for the MIDI input, however when I use that there's a loud buzzing sound (ground loop I know...). So I tried to use a MIDI-to-USB cable to get the MIDI input from a MIDI OUT port. I can get the MIDI signal this way and when I connect my headphones to my laptop, I can hear Pianoteq's sounds. However, when I disconnect the headphones and plug the line-in via an AUX cable, the laptop stops receiving MIDI input. I can see this clearly in the Pianoteq interface, the notes that I play aren't visible in the virtual keyboard . When I unplug the AUX cable, it starts working again. So it seems that the only way the line-in works is when I'm using a normal USB-B to USB-A cable. Or, if I want to use a MIDI-to-USB cable, then I cannot use the line-in. Is this normal? What I can do solve the issue? Thank you.