Off the top of my head:

Have you tried the USB connection to your computer?
Have you tried the other MIDI input on the Tyros?
Have your tried to change the gain on both BiaB and the Tryos?

Could you upload a sample of the muffled sound so we could hear exactly what you hear?


I want my last spoken words to be "I hid a million dollars under the........................"

64 bit Win 10 Pro, the latest BiaB/RB, Roland Octa-Capture audio interface, a ton of software/hardware