Why is the volume low while streaming?
You can increase the volume by using the volume keys on your keyboard.
It could be that the wrong output device is selected. For instance, it might say ‘AirPlay’ or ‘Soundflower’ underneath the ‘Computer Speaker’-option. Porthole sets the computer output device on startup, so follow these steps to change it:
It should now say ‘Built-in Output’ or something similar under ‘Computer Speaker’ and Porthole will send the audio through that device.