Troubleshooting Log

Hybrid Worship-Service Troubleshooting Log
Hybrid = Zoom plus in-person

9/5/21 (revised 9/12/21)

I had originally thought that the cable that goes from the main computer (the computer with all the cables) to the sound mixing board wasn't making a good connection with the computer's earphone jack. However, I've now discovered that the jack is OK.
The Playback page of the Windows Sound Control Panel lists all the playback (audio output) devices. When you plug in headphones, headphones should automatically become selected as the playback device. However, this wasn't happening. Perhaps Windows got confused by the line-to-usb adapter wanting to be used as the playback device.
Solution: In the Sound Control Panel, right-click all playback devices except the earphones, and click "Disable."

On another Sunday, I discovered that disabling everything except the earphones doesn't guarantee that they will stay disabled. For some reason, Windows really wants to send the audio to the line-to-usb adapter.

Workaround (before solving the problem): Connected the cable to the page-share computer’s earphone jack. After doing this, video sound came out of the ceiling speaker (as it should).

With the cable plugged into the page-share computer’s earphone jack, sound from the microphones had severe echoing. This was due to the Internet delay for microphone sound to travel from the main computer to the page-share computer.
Thus, I had to unplug the cable from the page-share computer’s earphone jack except for when videos were playing.

Sound from the organ had a lot of static noise in the audio going out to the Zoom people. Strangely, the audio going to the ceiling speaker was static-free.

Mic too close. Solution: Move mic further away.
The following Sunday, I moved the mic further away and there wasn't any static.
Perhaps when the mic was close to the organ, the audio mixer board didn't max-out on the sound it sent to the ceiling speaker but did max-out on the audio it sent to Zoom. The two outputs are from different types of jacks.