AES New York 2018
145th International Pro Audio Convention
Dates Exhibition: October 17th - 19th, 2018
Dates Program: October 17th - 20th, 2018
Location: Jacob Javits Convention Centre, 655 W 34th Street, New York, NY 1001, USA
FREE Exhibits Plus VIP Code: 145AES1267
Paper Session P04-4 - Transducers Part 1 - Minimizing Costs in Audio Devices through Efficient End-of-Line Testing
Wednesday, October 17, 4:00pm
Variances in the parts and uncertainties in the assembling process degrade the performance and the reliability of the manufactured devices. Defective units increase the manufacturing cost if detected during end-of-line testing or increase the after-sales cost if an undetected failure occurs in the field. This paper addresses the role of end-of-line testing to reduce both kinds of failures and to maximize the performance/cost ratio as seen by the end-user. The selection of sensitive and fast measurements, which can be performed under manufacturing conditions, is the basis for the PASS/FAIL classification. The paper shows that optimal production limits used in EoL-testing minimize the overall cost by considering a clear product definition, information from the particular design, statistical data from manufacturing process and traceability of the field rejects. The general concept presented here is illustrated using practical examples from automotive and other applications.
Product Development: DP08 - Benefitting from New Loudspeaker Standards
Thursday, October 18th, 2:45 - 4:15pm
During the past one and a half decades, recent audio coding schemes have significantly overcome traditional limits for compression efficiency by adopting techniques for semi-parametric (hybrid) coding of audio signals. By doing so, full-bandwidth stereo reproduction can today be achieved even at very low bitrates, such as 12 kbit/s. The keys to this breakthrough achievement were two types of semi-parametric coding extensions: First, methods for bandwidth extension (BWE) allow full reproduced audio bandwidth even at low rates. Second, methods for parametric stereo (or multichannel) coding enable good reproduction of spatial sound under similar circumstances. The workshop will present the current state of development in these active areas, describe relevant technology, and illustrate its performance by sound examples.
Product Development: DP10 - Designing Hardware and Software Components in Modern Loudspeaker Systems
Friday, October 19th, 9:00 - 10:15am
Modern loudspeakers use digital signal processing to generate more output with less energy and optimized hardware while coping with signal distortion, instabilities, overload, aging, climate, and other external influences. The control software provides self-learning capabilities and valuable diagnostic information that simplifies the selection of hardware components, integration in an active system, and assessing the performance of the product in the target application. The tutorial explains essential technical characteristics, the physical background, and practical simulation tools to exploit the new opportunities in optimized amplifier and transducer design.