Source level of calls from Southern resident killer whales

Based on about 450 calls localized using Val's Orcasound hydrophone array, the mean source level of calls made by Southern Resident killer whales is 148 dB re 1 microPa @ 1m. This talk also documents call amplitude compensation in the presence of broadband background noise (from 96-117 dB re 1 uPa), including some interesting possible diurnal patterns.

• Powerpoint presented by Val at the Acoustical Society of America conference, May, 2005, in Vancouver, Canada (Val Veirs and Scott Veirs)
• Google slide version of the ASA talk