Hi there,
I am using an Elechouse VR Module v3 in a current project. During my prototyping phase, I was using this variable power supply with the VR module and it was doing a fantastic job at recognizing commands.
When I moved to using a normal, constant power supply, however, the VR module only recognizes commands every 1/30 attempts. I have tried using a ground loop isolator, new mics, and using power supplies with ferrite beads.
Any suggestions on how to move forward? I cannot use the variable power supply in the application of my project, and will need to be using a power supply that is plugged into the wall.