We have identified a bug in Sound Siphon that results not being able to hear your Mac’s audio while Sound Siphon is in use.
To address this:
- Open Sound Siphon’s preferences
- Switch the play through device to: None
- Switch the play through to: Built-In Output
You should now be able to hear your Mac’s audio. The change may take up to 5 seconds to take effect. You can now switch the play through to any device you desire. This should only need to be done once.
This bug will be fixed soon in the next version of Sound Siphon.