Using the newest host and viewer 22.214.171.124. The remote sound is a very loud static sound. You can barely hear some (very little) of the original sound within the static, but it mostly sounds like a radio tuned to a station that doesn't exist and turned all the way up.
It is a loud static only while there is a sound file playing. For example, if I play a 3 second audio file, there will be loud static for 3 seconds. Or, if I change the volume on the host computer (you know there is that 1-second ding sound when you change the volume by the clock, the remote computer will have a loud static sound for 1 second instead of the ding sound. If I try to play a video on the host, the remote will have a loud static sound as long as the video is playing.