Current ASA Meeting

Upcoming Meetings

    187th Meeting – Virtual Meeting, 18-22 November 2024

    188th Meeting – joint with the International Congress on Acoustics, New Orleans, Louisiana 18-23 May 2025

    189th Meeting – joint with the Acoustical Society of Japan, Honolulu, Hawaii, 1-5 December 2025

    190th Meeting, Philadelphia, Pennsylvania 11-15 May 2026

181st Meeting
Acoustical Society of America

Hyatt Regency Seattle
Seattle, Washington

29 November –3 December 2021

The registration desk at the meeting will open on Monday morning, 29 November.

Seattle Meeting Sponsorship Opportunities​


The Acoustical Society of America Thanks its Seattle Meeting Sponsors


COVID-19 Vaccination Requirement for Meeting Attendance – Revised

ASA has decided that all participants at the in-person Seattle ASA meeting, including presenters, attendees, exhibitors, staff, accompanying persons, and local support staff will be required to be fully vaccinated against the COVID-19 virus.

ASA must comply with the recently-adopted Seattle/King County policy requiring participants at meetings to show proof of full vaccination.  Please remember to bring your proof of vaccination to the meeting.  You will not be allowed entry without this documentation.

Note:  It will not be possible to read QR codes at the meeting so print out your proof of vaccination documents before arrival at the meeting.

A statement requesting pre-registrants to affirm that they and all of their accompanying guests are fully vaccinated against COVID-19 has been added as a question to the preregistration site.  It will not be possible to register yourself or your accompanying persons unless the registrant can affirm that they and their accompany guests are fully-vaccinated against COVID-19. A similar statement will be included on the at-meeting registration form.

The local policies regarding the wearing of masks will be followed during the meeting.

ASA is closely monitoring the COVID-19 situation and will share updates when new information becomes available.

Key Dates

9  August          Abstract Submission Deadline
22 October       Funding for Students and Early Career Attendees
25 October       Student Transportation Grant Applications
25 October       Preregistration Deadline including Ticket Sales and Tour Registration
29 November   First Day of Seattle Meeting
1 December     Plenary Session and Awards Ceremony


Itinerary Planner

Meeting Program in PDF Format
The Itinerary Planner/Mobile App should be used as the schedule of record which is updated with any new withdrawn abstracts.

Schedule of Committee Meetings
Seattle COVID 19 requirements for visitors


The 181st Meeting of the Acoustical Society of America (ASA) will be held Monday through Friday, 29 November-3 December 2021 at Hyatt Regency Seattle, Seattle, Washington.


The technical program will consist of lecture and poster sessions. Technical sessions will be scheduled Monday through Friday, 29 November–3 December 2021.


Mobile App for the Seattle Meeting
29 November–3 December 2021

Delete all apps from your device from previous ASA meetings before downloading

My Itinerary by Scholar One app for the Seattle meeting



Monday, 29 November 2021, 4:00 p.m. PST

An unexpected journey through sound

Tyrone M. Porter, University of Texas at Austin

Growing up in Detroit in the 1980s, I never envisioned a career in acoustics…not because I was told I couldn’t but because I wasn’t told I could.  I did not learn about the academic and professional opportunities in biomedical ultrasound until halfway through my undergraduate program.  But as a doctoral student, the lack of Black representation in acoustics raised many doubts and fears…doubts in my own abilities and fears that the acoustic community would not accept me.  I was embraced by members of the ASA, which empowered me to take the road less traveled.  I am here today to share how this unexpected journey through sound has shaped me personally and professionally and thoughts on how I and the ASA can continue to broaden participation in acoustics.

Dr. Tyrone Porter is a Professor of Biomedical Engineering at The University of Texas at Austin. A native of Detroit, MI and an alumnus of Prairie View A&M University, Dr. Porter earned his Ph.D. in Bioengineering at the University of Washington in 2003. He was awarded the Frederick V. Hunt Postdoctoral Research Fellowship in Acoustics by the Acoustical Society of America (ASA) and completed his training at the University of Cincinnati.

He started his academic career in the Department of Mechanical Engineering at Boston University in 2006 and held several leadership positions, including Associate Director for the Nanotechnology Innovation Center and Co-Director for the Translational Research in Biomaterials doctoral training program.

Dr. Porter has made significant contributions to the use of ultrasound for noninvasive ablation of solid tumors, permeabilizing biological interfaces for drug delivery, and triggering drug release from stimuli-responsive nanocarriers.  For these accomplishments, Dr. Porter received the R. Bruce Lindsay award from the ASA in 2008 and was elected a Fellow of the ASA in 2017 and  of the American Institute for Medical and Biological Engineering (AIMBE) in 2021.

A staunch advocate for diversity, equity, and inclusion in STEM disciplines, Dr. Porter was appointed an inaugural Faculty Fellow for Graduate Education at Boston University and has spoken nationally on the topic. Recently, he was appointed Chair of the Committee for Improving Racial Diversity and Inclusivity within the ASA, which is spearheading efforts to attract and embrace students, scholars, and professionals within the society and the acoustics field.



A “Hot Topics” session sponsored by the Tutorials, Short Courses, and Hot Topics Committee will cover Hot Topics on Covid-19 related acoustics topics.


An instrument and equipment exhibition will be located near the registration area and meeting rooms and will open on Monday, 29 November, with an evening reception serving lite snacks and a complimentary drink. Exhibit hours are Monday, 29 November, 5:30 p.m. to 7:00 p.m., Tuesday, 30 November, 9:00 a.m. to 5:00 p.m., and Wednesday, 1 December, 9:00 a.m. to 12:00 noon.

The Exhibit will include computer-based instrumentation, scientific books, sound level meters, sound intensity systems, signal processing systems, devices for noise control and acoustical materials, active noise control systems, and other exhibits on acoustics.

Contact the Exhibit Manager for information about participating in the exhibit: Dan Cooke, Director of Advertising and Exhibit Sales, AIP Publishing, LLC, 1305 Walt Whitman Road, Suite 300, Melville, NY 11747-4300, Tel: 516-576-2629; E-mail:



The Student Design Competition is sponsored by the ASA Technical Committee on Architectural Acoustics, with generous support from the Wenger Foundation, the Robert Bradford Newman Student Award Fund, and the National Council of Acoustical Consultants.

The 2021 Student Design Competition will be displayed and judged at the Seattle meeting. This competition is intended to encourage students in the disciplines of architecture, engineering, physics, and other curriculums that involve building design and/or acoustics to express their knowledge of architectural acoustics and noise control in the design of a facility in which acoustical considerations are of significant importance. Submission requirements will include a digital submission for judging and a printed copy of the submission for display at the Seattle meeting

Design Scenario: The project involves designing a performance hall primarily for opera for a college of moderate size with a very strong music program. Although the main purpose of the hall is to support their opera program, the hall may be used occasionally for symphony orchestra, chamber music, chorus, and dance. See the full announcement for more information.

Entry Requirements: Entries may be submitted by individual students or teams of a maximum of three students. Undergraduate and graduate students are encouraged to participate. Participants must be registered as a student during the spring or fall semesters of 2021. See the announcement for all Entry Requirements and Limitations.

Registration: Teams must register by e-mail on or before 1:00 PM (CST) on October 1, 2021 to the competition co-chair at


Technical Committees will hold open meetings on Tuesday, Wednesday, and Thursday evenings (30 November, 1 and 2 December). These are working, collegial meetings. Much of the work of the ASA is accomplished by actions that originate and are taken in these meetings including proposals for special sessions, workshops, and technical initiatives. All meeting participants are cordially invited to attend these meetings and to participate actively in the discussions.


All authors of Seattle meeting papers are encouraged to submit a pdf manuscript to ASA's Proceedings of Meetings on Acoustics (POMA). Things to note:

• There is no publication fee, but presentation of the paper at the meeting is mandatory.
• POMA does not have a submission deadline. Authors may submit manuscripts before or after the meeting; note, however, that review will not take place until after the meeting.
• POMA has new Word and LaTeX manuscript templates and cover pages are now generated automatically at the time of publication.
• Published papers are being both indexed in scholarly venues and highlighted on Twitter and Facebook.
• Visit for additional information, including recent changes to the manuscript preparation/submission process.


An itinerary planner and mobile app will be available for the Seattle meeting. A complete meeting program will be available at the meeting. Abstracts will be published on the ASA webpage in November.


A tour of NWAA Labs, Inc. will be held on Sunday, 28 November. The bus will leave at 8:30 a.m. from the Hyatt Regency Seattle hotel for the drive to the lab with arrival scheduled for 10:30 a.m. The tour of NWAA Labs will last 2 to 3 hours, followed by a lunch before departure back to the Hyatt Regency Seattle hotel. Snacks and water will be provided on the bus. The bus will return to the hotel with time for participants to plan for their dinners in Seattle. The laboratory is located in Elma, Washington, about 1.5-2 hours southwest of Seattle and 1.5-2 hours northeast of Portland, Oregon. Dress for the weather, Average temperature in the lab building is 12 degrees C, 54 degrees F. Videos and a short lecture will be given onboard the bus as well as highlights of the area. Along the way you will travel through the Puget Sound region that includes cities such as Seattle, Tacoma and Olympia, the state Capitol, as well as numerous small towns and wild countryside

NWAA Labs is home to two of the largest reverberation rooms in the world for use in measuring absorption, transmission loss, sound power, and insertion loss. One is 737 cubic meters in size, the other is 675 cubic meters. The large room is considered the quietest non-anechoic room in the world with background levels as low as -43 dBA and averaging -8 dBA over a frequency range of 25 Hz to 10 kHz. In this room we have the ability to measure RT times for a full 60 dB of decay covering those frequency ranges. The other facility is one of the largest interior free-field facilities used to measure directivity and attenuation of speakers and diffusive products in 360 x 360 degree balloons at various resolutions. The room itself is 650 feet long by 250 feet wide by 80 feet high. This is large enough to hold 4 US-sized football fields inside the room. Demonstrations will be held to show typical tests and research as well as tours of facilities of an abandoned nuclear power station in which the lab is built.

The cost of the tour is $50.00 per person to cover transportation and food. Register online at by 25 October 2021. Register online at



The Women in Acoustics Committee is hosting a facilitated round-table discussion session from 2:30 p.m. – 3:30 p.m. on Wednesday, December 1. Discussion topics will focus on navigating careers and work-life changes during Covid-19 and transition back to in-person or hybrid work. Each table will have a topic leader to facilitate the informal discussions, and the attendees may choose which topic they would like to discuss. There will be an opportunity for attendees to switch tables to discuss a new topic at 3:00 p.m. While the discussions in this session will focus on women's experiences related to these topics, anyone interested in participating in these discussions is welcome to attend.


Many job applicants are now asked to submit a diversity statement along with other materials, but because these statements are relatively new, many applicants are unsure about the expectations. Further, employers must learn how to evaluate these statements and effectively use them in the hiring process. For early career and established acousticians alike, diversity statements can be excellent tools for self-reflection, allowing you to consider your equity and inclusion practices for all aspects of your work including research, mentorship, outreach, teaching, and service. The workshop will provide strategies for developing a diversity statement as well as tools for evaluating them. There will be breakout groups for those at different phases of the writing process and for those looking to incorporate them into their hiring practices. The workshop will be facilitated by Cynthia del Rosario, Inclusion, Diversity, Equity, Access and Sovereignty (IDEAS) Advisor, Information School and Dr. Tam'ra-Kay Francis, Department of Chemistry, both from the University of Washington. Contact Tessa Bent or Tyrone Porter tmp6@utexas.eduwith questions. This event is co-sponsored by the Member Engagement Committee and the Committee to Improve Racial Diversity and Inclusivity. The workshop will be held from 10 AM – 12 noon on Tuesday, November 30 in Columbia B.


Acoustics research is frequently developed on sponsored research projects that arise from direct interaction with sponsors. The process for these funding mechanisms differs from the process for awards that are written in response to a call for proposals. This panel workshop will discuss business development strategies for acousticians who are seeking funding from organizations, such as government offices or consulting firms, whose processes differs from traditional grant writing. Topics covered will include the importance of networking, mentoring, diplomacy, and how to write a statement of work. Contact Amanda Hanford <> with questions. This event is sponsored by the Member Engagement Committee.


A Wikipedia Editing Event will be held on Monday, 29 November, 1:00 p.m. to 3:00 p.m. at the Seattle meeting where attendees will discuss and edit Wikipedia. Acoustics experts can become Wikipedia experts and contribute to the International Year of Sound by taking part in this Wikipedia Workshop. The purpose of the workshop is to acquaint new and experienced editors to improving acoustics content on Wikipedia. In the first hour, participants will learn the basics of Wikipedia and how to edit followed by hands-on editing with guidance and support from the experts. More experienced editors are invited to stop by in the second hour to help improve Acoustics content areas of need. At the end of the program, all participants will have contributed to improving Wikipedia Acoustics and feel more comfortable editing on their own.  Please bring your computer and create a Wikipedia account in advance of the Workshop.



Wu-Jung Lee (Applied Physics Lab., University of Washington, Seattle), Fabio Soares Frazao (Dalhousie University, Halifax, NS, Canada), and Valentina Staneva (University of Washington, Seattle) will present a tutorial titled “Software Best Practices” on Monday, Monday, 29 November, at 7:00 p.m.


Software tools play an increasingly important role in modern day acoustics research. We will share a few core software best practices and tools that can help make research processes and outcomes more reproducible and at the same time facilitate collaboration. We plan to cover coding best practices with emphasis on tests and documentation, which contribute to code that is more reusable and robust to errors. We will also cover the use of code and data repositories for collaborative research and show open cloud-based platforms suitable for sharing research outcomes. We will conclude the tutorial by an open discussion on the practicalities of these guidelines and invite all participants to share their perspectives and experiences with the group. The tutorial will include presentation, demos and hands-on exercises, so please bring your laptop to the tutorial.

Please also fill out this short survey to help us get an idea of your programming experience and the specific topics you are interested in learning about.


The tutorial will include presentation, demos and hands-on exercises, so please bring your laptop to the tutorial.


To partially defray the cost of the lecture, a registration fee is charged. The fee is USD $15 for registration received by 25 October 2021 and USD $25 thereafter including on-site registration at the meeting. The fee for students with current ID cards is USD $7 for registration received by 25 October 2021 and USD $12 thereafter, including on-site registration at the meeting. Register online at to register for the Tutorial.



Ultrasound contrast agents (UCA) have expanded the effectiveness and utility of ultrasound in medicine. Conventional UCA first formulated in the 1980s are defined as microbubbles coated with surface active molecules such as lipids or surfactants to stabilize the gas core against dissolution. Novel formulations of UCA have emerged in the last two decades, including echogenic liposomes, nanobubbles, genetically-encoded gas vesicles, vaporizable nanoemulsions, and polymeric nanocups that stabilize gas pockets on their surface. Originally intended for improving contrast in diagnostic ultrasound images, these nonlinear oscillators have enabled a broad spectrum of exciting therapeutic applications, such as mechanical destruction of tissue and tumors and drug delivery to the brain. This course will cover the various formulations of UCA, experimental and theoretical approaches for studying their response to acoustic excitation, and the variety of biomedical applications that have benefited from their development.


The objective of this course is to provide scholars with a solid foundation for formulating, characterizing, and utilizing their own UCA. First, we will review the various chemistries and strategies employed for producing UCA. This will be followed by a discussion on the theoretical and experimental methods used to characterize the nonlinear dynamics of UCA. Last, we will review the array of applications that have leveraged the nonlinear dynamics of UCA, ranging from harmonic (nonlinear) imaging to transient disruption of the blood-brain barrier.


Tyrone Porter, Ph.D. is a Professor of Biomedical Engineering at The University of Texas at Austin. Dr. Porter earned a bachelor’s degree in Electrical Engineering from Prairie View A&M University in Texas and completed his doctoral studies in the Department of Bioengineering at the University of Washington. He was awarded the Frederick V. Hunt Postdoctoral Fellowship and the R. Bruce Lindsay award from the Acoustical Society of America in 2003 and 2008, respectively. In 2017, Dr. Porter was elected a Fellow of the ASA. Dr. Porter founded the Nanomedicine and Medical Acoustics Laboratory (NanoMedAL) at BU with the goal of integrating chemistry, biology, and physics to engineer novel stimuli-responsive particles for medical applications. Since establishing the lab, his group has made numerous contributions to biomedical ultrasound, including the use of vaporizable perfluorocarbon nanoemulsions for enhancing ultrasound-mediated tumor ablation and developing characterizing the nonlinear response of microbubbles coated with thin lipid and polymeric shells. More recently, the group has begun to leverage the nonlinear response of UCA for ultrasound-mediated drug delivery to the brain.


Sunday, 28 November 2021, 1:00 p.m. to 5:00 p.m.
Monday, 29 November 2021, 8:30 a.m. to 12:30 p.m.


The full registration fee is USD $300 (USD $125 for students) and covers attendance, instructional materials and coffee breaks. The number of attendees will be limited so please register early to avoid disappointment. Only those who have registered by 25 October 2021 will be guaranteed receipt of instruction materials. There will be a USD $50 discount off the full registration fee (discount does not apply to student fee) for registration made prior to 25 October 2021. Full refunds will be made for cancellations prior to 25 October 2021. Any cancellations after 25 October 2021 will be charged a USD $25 cancellation fee. Register online at to register for the short course. If you miss the preregistration deadline and are interested in attending the course, please send an email to



A student transportation subsidies fund has been established to provide limited funds to students to partially defray transportation expenses to meetings. No reimbursement is intended for the cost of food or housing. The amount granted each student depends on the number of requests received. To apply for a subsidy, submit a proposal by e-mail to be received by 25 October 2021 to: Jolene Ehl, The proposal should include your status as a student; whether you have submitted an abstract; whether you are a member of ASA; method of travel, and approximate cost of transportation.


The Committee on Women in Acoustics (WIA) sponsors Young Investigator Travel Grants to help with travel costs associated with presenting a paper at the Seattle ASA meeting. Young professionals who have completed their doctorate in the past five years are eligible to apply if they plan to present a paper at the Seattle meeting, are not currently students, and have not previously received the award. Each award will be approximately $500 with four awards anticipated. Awards will be presented by check at the WIA luncheon at the meeting. Both men and women may apply. Applicants should submit a single PDF file (named <last name>_ <first name>_YI.pdf) that includes 1) a paragraph explaining how this award will enable their attendance at the ASA meeting, 2) a copy of the abstract for their presentation at the meeting, and 3) a current resume/vita showing their involvement in the field of acoustics and in the ASA. The PDF file should be uploaded to Deadline for receipt of applications is October 15, 2021.


The Committee on Women in Acoustics (WIA) sponsors Dependent Care Subsidies to help offset dependent care costs associated with attending the Seattle ASA meeting. Meeting attendees are eligible to apply if they plan to present a paper at the Seattle meeting or hold a leadership position in ASA. Each subsidy will be approximately $500 with four awards anticipated. Both men and women may apply. Applicants should submit a single PDF file (named <last name>_ <first name>_DepCare.pdf) that contains the following: name, contact information/affiliation, title of presentation or leadership role and main technical committee(s), a paragraph describing current and past involvement with ASA, a paragraph describing how subsidy would offset dependent care expenses while attending the ASA, and an estimated budget for the trip (including other sources of available funding). The pdf file should be uploaded to Deadline for receipt of applications is October 15, 2021.


Early Career Travel Support Awards are available to help with costs associated with participating in the Fall 2021 meeting, which will be held in Seattle. Early career meeting attendees are eligible to apply if they are members of the Acoustical Society of America, are within 10 years of receiving their last degree, and are not currently students. Priority will be given to applicants who will be presenting a paper at the meeting, will be chairing a session at the meeting, identify as a member of an underrepresented group within the Society and/or hold a leadership position in the ASA. Each award will be on the order of USD $500.
Apply for the award here:

Deadline for receipt of applications is October 22, 2021. Contact Meaghan O'Reilly with questions.



An orientation will be held from 5:00 p.m. to 5:30 p.m. on Monday, 29 November, for students and first-time attendees to learn about the activities and opportunities available for students and first-time attendees at the Seattle meeting. This will be followed by the Student Meet and Greet from 5:30 p.m. to 6:45 p.m. where refreshments and a cash bar will be available.


The Students’ Reception will be held on Wednesday, 1 December, from 6:00 p.m. to 8:00 p.m. This reception, sponsored by the Acoustical Society of America and supported by the National Council of Acoustical Consultants, will provide an opportunity for students to meet informally with fellow students and other members of the Acoustical Societies of America. All students are encouraged to attend, especially students who are first time attendees or those from smaller universities.


A student in the SMMfL program meets one-on-one with an ASA member over lunch during the ASA meeting. The purpose is to encourage students, as they embark on their acoustical careers, to network with more senior members. Each lunch pairing is arranged to ensure a good match between the student's and member's acoustical interests. Each participant pays for his/her own meal. Students who wish to participate should check the SMMfL check box in the on-line preregistration form. They will be contacted later for additional information to assist with the matching process. The Students Meet Members for Lunch program is sponsored by the Committee on Education in Acoustics.


Students are also encouraged to visit the official ASA Student Home Page at



The ASA Plenary session will be held Wednesday afternoon, 1 December, where Society awards will be presented and recognition of newly-elected Fellows will be announced.


Two socials with complimentary buffets and cash bars will be held on Tuesday and Thursday, 30 November and 2 December at Hyatt Regency Seattle Hotel.

The ASA hosts these social hours to provide a relaxing setting for meeting attendees to meet and mingle with their friends and colleagues as well as an opportunity for new members and first-time attendees to meet and introduce themselves to others in the field. A second goal of the socials is to provide a sufficient meal so that meeting attendees can attend the open meetings of the Technical Committees that begin immediately after the socials.


The Women in Acoustics luncheon will be held on Wednesday, 1 December. The fee is USD $25 (students USD $15) for preregistration by 25 October 2021 and USD $30 (students USD $15) at the meeting. Those who wish to attend this luncheon must register online at


A Society Luncheon and Lecture sponsored by the College of Fellows will be held Thursday, 2 December, at 12:00 noon. This luncheon is open to all attendees and their guests. The lecture topic and speaker will be announced at a later time. Register online by 25 October 2021 at Ticket cost is USD $30.00 each.


The College of Fellows will host the ASA Jam Session on Wednesday, 1 December, at 8:00 p.m. Bring your axe, horn, sticks, voice, or anything else that makes music. Musicians and non-musicians are all welcome to attend. A full PA system, backline equipment, guitars, bass, keyboard, and drum set will be provided. All attendees will enjoy live music, a cash bar, and all-around good times. Don’t miss out.



Seattle-Tacoma International Airport (SEA)
Thirty-one airlines serve 91 non-stop domestic and 28 international destinations including Canada, Mexico, and seasonal operations.

Get the Fly SEA App:

Accessibiity at the SEA airport:

SEA Traveler Updates:

SEA COVID-19 Status Updates at SEA Airport: for updates

SEA COVID-19 Testing and Travel Requirements:


There are several Hyatt hotels in and around Seattle. Please specify that you destination is Hyatt Regency Seattle, 808 Howell Street

Visit for ground transportation options between the Seattle SeaTac airport and the Hyatt Regency Seattle
Light Rail:
Walk two blocks southwest to the Westlake Station, where you can board the Link Light Rail and ride it to the airport, University of Washington, and more. Seattle-Tacoma International Airport is just 15 miles away.


Rates are subject to change by the time of the meeting

USD $40.00: Self-parking all-day with in/out privileges for hotel guests (limited and based on availability)

Valet parking not offered at this time


A block of guest rooms at discounted rates has been reserved for meeting participants at the Hyatt Regency Seattle hotel. Early reservations are strongly recommended. Special ASA meeting rates are not guaranteed after Friday, 5 November 2021, at 5:00 p.m. PST (Pacific Standard Time)

Hyatt Regency Seattle, 808 Howell Street, Seattle, WA 98101


● Check in time: 4:00 p.m./Check out time: 12:00 noon
● To ensure individual reservations, a one night’s guarantee (including taxes and fees) using a major credit card with expiration date is required.
● Departure dates will be verified upon check-in. Early departure fee of one night’s room and tax will be charged for departures prior to the verified check out date.
● Cancellation of an individual reservation must be made 48 hours prior to arrival date. Failure to notify the hotel will result in a charge of one night’s room rate, plus applicable taxes and fees.
● A credit card must be presented at check in. Guests addresses and e-mail addresses are also required.

Visit for Hyatt’s safety and cleanliness protocols including policies regarding masks and social distancing


Online Reservations

Reservations can be made directly online at the website listed below. You must enter the ASA group code to obtain the special rates:

Telephone Reservations

Online reservations are recommended. When making reservations by phone you must mention that you are with the Acoustical Society of America group to obtain the special ASA room rates:


USD $179.00 King Single or Double
USD $204.00 King Triple / USD $229.00 King Quadruple

Room rates are also subject to any Hotel-specific fees that may be in effect at the time of the meeting

State and Local Taxes and Fees:
15.7% plus a $2 Tourism Fee

Reservation cut-off date: Friday, 5 November 2021, at at 5:00 p.m (PST) Pacific Standard Time



ASA will compile a list of those who wish to share a hotel room and its cost. To be listed, send your name, telephone number, e-mail address, gender, smoker or nonsmoker preference, not later than 25 October 2021 to the Acoustical Society of America, by e-mail, The responsibility for completing any arrangements for room sharing rests solely with the participating individuals.


Meeting attendees who have special accessibility requirements, should indicate their needs by informing ASA at not less than 30 days in advance of the meeting. Please provide a cell phone number, e-mail address, and detailed information so that we may contact you directly.


A lactation room for ASA meeting attendees will be available from 8:00 a.m. to 5:00 p.m. Monday to Thursday and 8:00 a.m. to 12 noon on Friday..


Accompanying Persons and other visitors are welcome at the Seattle meeting. The registration fee for accompanying persons is USD $175 for preregistration by 25 October 2021 and USD $225 thereafter, including on-site registration at the meeting. There will be a hospitality room in the hotel for participants.


In most years, Seattle averages a daily maximum temperature for November that's between 50 and 55 degrees Fahrenheit (10 to 13 degrees Celsius). The minimum temperature usually falls between 38 and 43 °F (3 to 6 °C). Seattle can receive 4 to 7 inches (114 to 176 mm) of precipitation in November


COVID-19 Vaccination Requirement for Meeting Attendance

ASA has decided that all participants at the in-person Seattle ASA meeting, including presenters, attendees, exhibitors, staff, accompanying persons, and local support staff will be required to be fully vaccinated against the COVID-19 virus.

A statement requesting registrants to affirm that they and all of their accompanying guests are fully vaccinated against COVID-19 has been added as a question to the registration site.  It will not be possible to register yourself or  your accompanying persons unless the registrant can affirm that they and their accompany guests are fully-vaccinated against COVID-19. The Washington State policies regarding the wearing of masks will be followed during the meeting.

ASA decided to add this requirement for attendance at the meeting to provide a safe environment for meeting participants. ASA is closely monitoring the COVID-19 situation and will share updates when new information becomes available.


The registration desk at the meeting will open on Monday morning, 29 November.  If your preregistration is not received by 25 October 2021 you must register on-site.  The Registration Desk at the meeting will be open each day on the 3rd floor at the Hyatt Regency Seattle.

Registration fees are USD as follows:

  ASA Members $625 $725
  ASA/ Members One-Day Attendance (1) $315 $415
  Nonmembers $775 $875
  Nonmembers One-Day Attendance $390 $490
  Nonmember Invited Speakers One-Day Attendance (1) $ 0 $ 0
  Nonmember Invited Speakers-Full Week $390 $390
  ASA Early Career Associate or ASA Full Members (Members within 3 years of their most Recent degrees—proof of date of degree required) $315 $415
  ASA Student Members (must show current Student ID)(2) $125 $175
  Nonmember Students (must show current Student ID)(2) $225 $250
  Undergraduate Students (must show current Student ID)(2) $25 $25
  ASA Emeritus Members (Must hold Emeritus status in advance of the meeting) $175 $225
  Accompanying Persons (Registrants who will not participate in the technical sessions) $175 $225

Nonmembers who register for the full meeting week and simultaneously apply for Associate Membership in the ASA are entitled to USD$50 discount off their dues payment for 2021. Invited speakers who are members of the Acoustical Society of America are expected to pay the registration fee, but nonmember invited speakers may register for one-day only without charge. A nonmember invited speaker who pays the full-week registration fee, will be given one free year of membership upon completion of an application form.

Note: A USD $25 fee will be charged for cancellations after 25 October 2021

Registration Policies:

  1. One-day registration: For participants who attend the meeting for one day only. If you will be at the meeting for more than one day either presenting a paper and/or attending sessions, you must register and pay the full registration fee.
  2. Students: All students must show a current (issued in 2021) student id card or verification of student status from the university attended on university letterhead in order to be eligible for student fees. If proof of student status is not available, the full registration fee must be paid.
  3. Emeritus Members: Only ASA members who hold emeritus status prior to the meeting are eligible for this rate. It is not possible to transfer to emeritus status at the meeting.
  4. Accompanying Persons: These are attendees who will participate only in the Accompanying Persons Program. Acoustics professionals, who participate in the technical program, i.e., present papers, attend sessions, and/or listed as coauthors on abstracts are not eligible for this registration rate.


An abstract of not more than 200 words is required for each paper, whether invited or contributed. Abstracts longer than 200 words will be truncated. Authors must submit abstracts online.

All abstracts must be submitted by 9 August 2021. This deadline will be strictly enforced. Abstracts submitted via postal mail or e-mail will not be accepted. Abstracts will be rejected if they do not comply with the instructions.

Authors should be prepared to accept assignment to lecture or poster sessions.
Authors of invited papers must indicate the title of the special session in which they have been invited to participate at the time the abstract is submitted.
Authors of contributed papers may request placement of their abstracts in special sessions. The request will be honored, if possible, but there is no guarantee such abstracts will be scheduled in the requested sessions.
If no special session placement is requested, contributed papers will be scheduled in sessions with abstracts of similar technical content.
Submitted abstracts will not necessarily be accepted for the meeting. Acceptance is based on the following factors: adherence to the guidelines given here, clarity of writing, originality of the contribution, appropriateness of the subject matter to the ASA, correctness of the content, and the significance of the contribution. The ASA reserves the right to reject any submitted abstract without giving extensively documented reasons.
The presentation, and therefore the abstract, must be relevant to the field of acoustics, and focus on scientific developments, applications, standards, or education. Statements of political advocacy or explicit advertisement of products or services must be avoided.
Authors will be asked to answer the following questions during the submission process:
● Compliance with ethical principles
● Confirmation that all authors are aware of and agree with the submission of abstracts on which their names appear
● Authors contributing papers in Speech Communication are also encouraged to select poster-style presentation which is the default for Speech Communication sessions.
● Contributed papers in Psychological and Physiological Acoustics and Underwater Acoustics may be scheduled for lecture or poster presentation.
● While authors may indicate a preference for presentation style, it may not always be possible to honor the request. Authors should be prepared to accept assignment of their abstracts to either lecture or poster presentation.
Corresponding authors will receive an e-mail message confirming that their abstracts have been received. Acceptance notices will be sent to authors in September.



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