On Soundside, we occasionally ask field recordists about their iconic sounds of northwest. Today, we'll hear from acoustic ecologist Gordon Hempton, also known as the Sound Tracker. He brought a ...

Acoustic cloak to hide ships from sonar Save Create your free profile or log in to save this article June 27, 2011, 1:11 PM PDT By Nidhi Subbaraman ...

This automated Log Grader works by using a swinging hammer to hit the end of each log going through the system, and recording the sonic readings using a microphone. Calculating the acoustic speed ...