Yes, it’s just settings on the computer or smartphone--we have rarely lost the audio. (Also, we believe that the "echoing" issue is resolved, as we have switched to a new livestream encoder). Here are a couple of helpful hints:

1) You may need to click on the "LIVE" button at the bottom-left of the Livestream viewing box if the video does not appear within 5-10 seconds.

2) To “UNMUTE”, there are icons at the bottom-left of the Livestream viewing box. There is an icon that looks like an old-fashioned speaker. If it has a slash thru it then that means that the sound is being muted. Just click on that icon and you should be all set! The reason that livestreams and other videos are muted is because the government has ruled that they should now open in the muted mode. This is because advertisers were blasting their ads when people searched for something in Google, etc., and the consumers were hit with all kinds of loud advertising that did not relate to their searches. Now the ads appear but are muted by law. And so it has to be with our Livestream because it is technically a video.
So, please just keep going to the bottom left of the box that opens-up, and make sure that you unmute that little speaker icon if you don’t hear any sound.