livestream.com captures fine here and plays back ok to. They are HLS protocol streams and all appear to be AAC, VBR audio codec. See screen shot below showing audio details in Jaksta.
Does your capture show an audio stream as per the screenshot?
If it does then there is an audio stream that has been captured. Do you have your speakers setup correctly so you can listen to say youtube videos? What player are you using as it may not supporting AAC VBR. Try VLC if you arnt already.
If it doesn't then please provide the url address of the page hosting the livestream are you trying to capture so we can have a look?
From CRS @ 04 May 2018 12:05