“Shortly after these synthesized sounds begin, we hear the acoustic sounds of water flowing gently in the background.”

“The master bedroom is upstairs at a nice acoustical remove from the guests.”

“First, the acoustical problem was solved by giving the performers body mikes, with the audience listening on little portable headsets.”

“Research using sonograms, hydrophones, and other acoustical devices have shown that that these whales produce two sounds termed A or B calls.”