AES Milan 2018
Audio Applications Forum Session Details
Thursday, May 24, 12:30 — 13:30 (Arena 1)
AAF01 - How Line Array Technology Has Inspired a New Approach to Microphones
Presenter:Daniele Mochi, K-array - Florence, Italy
Line array speakers have recently become extremely popular in the professional audio industry. With a high directivity on the vertical plan, a line array's sound beam can be focused solely on the audience area, ensuring greater intelligibility in highly reverberant environments and enabling uniform coverage of distances much greater than those attainable with point sources. The theory behind the line array configuration is well known and acoustic prediction software is able to simulate their behavior with high accuracy. But what happens when we apply this theory to line array microphones? What are the advantages of these kinds of microphones and what are their applications? This presentation offers an in-depth, easy-to-understand overview of line array technology applied to microphones, with practical examples and demonstrations.
Friday, May 25, 12:30 — 13:30 (Arena 1)
AAF02 - Mains to Acoustic Efficiency
Presenter:Claudio Lastrucci, Powersoft S.p.a. - Scandicci (FI), Italy
A case study related to Power requirements to feed a subwoofer cabinet at high levels is pursued. Standardized signals and program audio signals are applied and results are directly measured on real devices.
Measurements on true power input, true power output, and overall efficiency in the amplification chain has been addressed including different amplification topologies. As a result, surprising high overall mains input to acoustic output chain efficiency is evidenced in the specific, usable, passband of the speaker.
Saturday, May 26, 12:30 — 13:30 (Arena 1)
AAF03 - Sinusoid or Transient? Numbers or Music? All the Questions that Lead to Arthur
Presenter:Stephan Schertler, Schertler SA - Mendrisio, Switzerland
• Sinusoidal and transient signals
• How an amplifier reacts
• How the NFB behaves
• How we can interpret non-linear distortions
• What the specifications of a device tell us
• Electrodynamic contact microphones: mechanical and electrical operation.