Date: March 6, 2002 @ 7:00 pm Topic: Tour and Presentation by Jim Hunter, Klipsch Place: Klipsch Worldwide Corporate Headquarters
The Section toured the Engineering Division Klipsch, LLC. Klipsch is currently adding 27,000 square feet of new space, which will include an anechoic room, a hemi-anechoic room, a machine shop and several other listening and R&D rooms. The tour was a unique opportunity to see the construction of these types rooms in process. Future meetings at the Klipsch facility will be exciting, indeed! Klipsch is a Sustaining Member of the AES and more information about their products can be found at www.klipsch.com.
Also during this meeting, Ken Bandy presented information on the Stagehand Union in Indianapolis – IATSE Local 30. Members, non-members and students with an interest in becoming involved in IATSE can get more information at http://iatse30.org/.
Date: February 6, 2002 @ 7:00 pm Keynote Presentation: “Sound System Headroom, Power Ratings, and Related Topics” – Pat Brown, Synergetic Audio Concepts (Syn-Aud-Con), Place: Hampton Inn Downtown, 105 S. Meridian St., Indianapolis, Maryland Meeting Room
Date: October 17, 2001 @ 6:30 pm Keynote Presentation: “The EIA-426-B Loudspeaker Power Rating Compact Disc. What’s on it? How do I use it?” – D. B. (Don) Keele, Jr., Principal Engineer, Advanced Development Engineering, Harman/Becker Automotive Systems. Place: Auralex Acoustics, Inc., 8851 North Hague Road, Indianapolis
The EIA-426-B standard: “Loudspeakers, Optimum Amplifier Power” (April 1998) specifies a test CD that contains the calibration and test signals for all the tests defined in the standard. This CD is intended to improve the consistency and convenience of the standard and will be made available through the EIA and other sources. The talk described the CD’s test signals and their development, and outlined the procedures to make best use of the disk in setting the power ratings of loudspeakers and the amplifiers that drive them. The revised standard (of EIA -426-A) emphasizes not the ability of a loudspeaker to handle power, but establishes procedures to set the maximum (or optimum) power rating of the amplifier used to drive the loudspeaker. The standard describes procedures to measure loudspeaker power compression and harmonic distortion, and for accomplishing accelerated life testing. The signals recorded on the CD considerably simplify applying the standard because no special signal generation equipment is required. Brief demonstrations of the sound of the signals and their application were presented.
Date: September 7, 2001 @ 10am Topic: CEDIA Convention Place: CEDIA Convention, Indianapolis Convention Center
Approximately 20 of us got to tour the CEDIA show floor courtesy of Don Gilpin at CEDIA HQ. After a brief delay (apologies – Jeff D. Symanski), we journeyed to the Goldline booth and heard a brief presentation from Anthony Grimani, President of PMI, Inc., about setting up surround sound environments, the tools needed and the results expected. Due to the delay and the crowded nature of the Convention, we were unable to hear about anything special at Klipsch or Escient (again, my apologies – JDS), but the group dissolved to peruse the show floor at their leisure. After the close of the show floor, a few of us took the footbridge over to the Westin for a Theta Digital Demo courtesy of David Ripp, Eastern Regional Manager (and Section member). The demo was very well received. The technology was quite impressive and the audio demonstrations – some recorded right here in Indiana – were of top-notch quality. Fun was had by all who attended the CEDIA Convention. We will definitely have to organize future co-events such as this in the future.
Indiana Section - Audio Engineering Society 