In streaming.py, change the default rate value in the __init__ constructor from 48000 to 44100.
If getting errors about WebSocketApp, pip3 uninstall websocket-client package and reinstall.
Check connections. Right-click on the Audio icon in the upper right and make sure it is set to Analog and not HDMI.
Make sure the name of the robot is not capitalized
Right click on audio icon in top right. Settings. Set audio card to "USB PnP...". Move the microphone slider around a little bit. Hit OK.