Nah no need to be sorry. If you want I can send you a PC build that may fix the issue. WebGL may be the one casing this issue.
Viewing post in HeartBound jam comments
Don't worry ! That's totally okay if other people can hear sounds that's what really count...
That's probably a sound bug with my computer but I can hear other things like music or sounds in other games... That's weird...
I think that it's the web player that makes this bug...
But don't worry everything is fine !