I found a good video about the volume at which you should speak or sing:
https://www.youtube.com/watch?v=h-5A-0c2DiM
It's a pretty long video. Watching the first 15 minutes is good enough to get a feeling of why there's an optimal volume where you should centre your voice around.
I found a good video about the volume at which you should speak or sing:
It's a pretty long video. Watching the first 15 minutes is good enough to get a feeling of why there's an optimal volume where you should centre your voice around.