AES New York 2018
Acoustics & Psychoacoustics Session Details
Wednesday, October 17, 9:00 am — 10:15 am (1E07)
AP01 - Acoustical Simulations: How Algorithms Predict Audible Reality
Chair:Dirk Noy, WSDG - Basel, Switzerland
Panelists:
Renato Cipriano, Walters Storyk Design Group - Belo Horizonte, Brazil
Gabriel Hauser, Walters Storyk Design Group - Basel, Switzerland
Modern acoustical engineering processes are largely based on full virtual (digital) prototyping and engineering, e.g., an acoustical situation is modeled in a specialized software environment to accurately reflect the space in question, whether it is a sports stadium, theater, classroom, boardroom, airport terminal or convention hall. Acoustical causes and effects are then studied and benchmarked within the virtual environment. This 75-minute tutorial will explore some of the methods and algorithms employed within the software tools, and illustrate recent advances such as 3D room modeling, acoustical surface definitions, and loudspeaker representation for electro acoustical prediction. Examples of effective corrective and predictive methods available to study certain acoustical problems will be reviewed, and detailed case studies will be illustrated.
Thursday, October 18, 4:30 pm — 6:00 pm (1E11)
AP02 - Telephonometry: The Practical Acoustics of Handsets, Headsets, and Mobile Devices
Presenter:Christopher Struck, CJS Labs - San Francisco, CA, USA; Acoustical Society of America
This tutorial introduces the basic concepts of Telephonometry with respect to electroacoustic measurements on analogue and digital telephones. Objective methods are emphasized, however, the relationship to subjective measures is also discussed. The historical concept of Loudness Rating and standardized methods for its calculation are reviewed. Standard objective measurements of send, receive, and sidetone are explained. The selection and use of appropriate instrumentation, including ear and mouth simulators, is also described. Techniques for the evaluation of handsets, headsets, speakerphones, and other hands-free devices are presented. Applications of these measurements to analogue, digital, cellular, and VOIP devices are explained. Issues with extended bandwidth devices are discussed and various methods specified in the ITU-T, IEEE, TIA, ETSI, and 3GPP standards are explained.
 | This session is presented in association with the AES Technical Committee on Audio for Telecommunications |
Saturday, October 20, 1:30 pm — 3:00 pm (1E13)
AP03 - Recruiting and Training Participants for Listening Tests
Presenters:Jan Berg, Luleå University of Technology - Piteå, Sweden
Jon Francombe, BBC Research and Development - Salford, UK
Christer Volk, Force SenseLab - Hørsholm, Denmark
Todd Welti, Harman International Inc. - Northridge, CA, USA
Listening tests can produce accurate and reliable results when conducted and analyzed correctly. The participants in such tests are an important contributing factor to the quality of results that are obtained. However, recruiting, training, and maintaining a committed panel of expert listeners is challenging, and reporting often lacks detail.
In this workshop, industrial and academic experts will share best practices from their extensive experience of running tests. How can listeners be recruited and trained? How should listeners be kept motivated, and how should performance be assessed? What details should be presented when reporting results? What are the different requirements for industrial and academic research? What about ethical issues and data security?