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 ...

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 ...