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Volume 17 | Issue 2, Summer 2021

From the Editor
From the President

Featured Articles

“Put a Sock in It!” Mutes for Musical Horns – Murray Campbell, Jo.l Gilbert, and Arnold Myers
Language Endangerment Threatens Phonetic Diversity – Ettien Koffi
Inaudible Noise Pollution of the Invertebrate World – Maggie Raboin
Twenty-Thousand Leagues Under the Sea: Recording Earthquakes with Autonomous Floats – Frederik J. Simons, Joel D. Simon, and Sirawich Pipatprathanporn
Evolutions in Marine Mammal Noise Exposure Criteria – Brandon L. Southall
Echo Classification- Statistics of Echo Fluctuations – Timothy K. Stanton, Wu-Jung Lee, and Kyungmin Baik

Sound Perspectives

Ask an Acoustician – Efren Fernandez-Grande and Micheal L. Dent
ASA Outreach in an Online World – L. Keeta Jones
How Are ASA Students Being Impacted by the Pandemic? – Hilary Kates Varghese, Kieren H. McCord, Mallory Morgan, and Elizabeth Weidner
Impact of the SARS-CoV-2 Pandemic on ASA Members – Tracianne B. Neilsen, Bonnie K. Lau
Administrative Committee Report: Committee on Ethics and Grievances – Preston S. Wilson


Gerald A. Studebaker | 1932–2018
Neal F. Viemeister | 1944–2020