Not being able to hear your participant be due to several reasons. It's either
- Their microphone is not working; or
- Your speakers are not working
First, run a pre-call test on your device to make sure your microphone is set up and working.
Also, have your participant run a test to make sure their speakers are working. Send this link to other participants: https://networktest.twilio.com
Here are a few things to try:
Are your speakers turned on?
Make sure you can hear sound from your speakers. If your computer has headphones or other speakers connected, make sure the sound isn't playing there. To confirm that sound is coming from your computer, play this video.
Does your participant have a microphone?
Your participant's computer may not have a microphone, or it's not plugged in or turned on. Make sure they have a working microphone.
Is your participant's microphone muted?
If your participant has a microphone with a press-to-mute button, make sure it isn't muted. Also, Blitzz has it's own mute button, make sure they don't have it on.
Did your participant give permission to access their microphone?
The first time your participant connects with Blitzz, their browser will request permission to access their microphone. If they denied access, you won't hear them. Try to reset.
Restart both your computers *
Sometimes other video programs (e.g. Skype, Facetime) can block access to your microphone or speakers. Restart both of your computers, or close these programs, then try again.
Is your browser up to date?
Out of date browsers can cause audio issues, make sure your browser is on the latest version.
Check your computer settings
Your participant's computer settings may prevent them from sharing their microphone. Have them check their microphone computer settings on Windows or Mac.
Check antivirus, firewall or parental settings
Your participant may have antivirus, firewall, or parental control software installed that is blocking access to their microphone.