Identifying and removing unknown Sound device
Solution 1:
I also suffered from this problem after installing a software to use a wireless projector. Though the name is not ESHOW but DongleAudio in my case, I guess this works for you.
- In Terminal.app,
cd /Library/Audio/Plug-Ins/HAL - Remove the driver by
rm -rf ESHOW.driverorrm -rf DongleAudio.driver - Reboot your Mac
I hope this helps.