Meeting Report — April 27, 2005

Date: April 27, 2005, 5:00 PM
Topic: Networking of Audio Devices, Presented by Troy Bomman of Crown Audio
Place: Murat Theater – Egyptian Room , Indianapolis

The section had a presentation by Troy Bomman after the Harmon Professional Roadshow. This was followed by a short business meeting to plan for a new election and outline of future meetings.

Business Notes:

The next meeting is tentatively scheduled for May 18 at the Scottish Rite Cathedral. The June meeting will be at Auralex’s new location.

The NAMM show is in July. The executive committee will try to get a few passes for those who are interested.

The CEDIA expo is in September. As in the past, the section is looking to have a group day visit to the expo.

The section will conduct elections at the June meeting.

Meeting Report — March 20, 2004

Date: March 30, 2004, 7:00 PM
Topic: Tour of the Aearo Company and NOVICON noise and vibration measurement facility
Place: Aearo Company’s EARCAL Laboratory, 7911 Zionsville Rd., Indianapolis, IN

The Indiana Audio Engineering Society took a unique tour of the Aearo Company EARCAL hearing protection research laboratory and NOVICON noise and vibration measurement facility. This was an opportunity to see a state-of-the-art measurement facility in acoustics and noise control.

The EARCAL laboratory supports the Aearo product lines of EAR and Peltor, two of the most recognized names in hearing protection and communications. EAR invented foam earplugs and introduced them to the world in 1972. Today they offer many hearing protection options including premolded and pod plugs, earmuffs, and Professional Musician EAR® earplugs for those who desire better-sounding hearing protection. The Peltor products include a respected line of high-end earmuffs and electronic and communications products.

The NOVICON facility supports EAR Specialty Composites that provides shock, vibration, and damping solutions plus noise barriers and absorbers for business jets, military tanks and naval submarines, trucks, and PCs, as well as numerous other applications. You will find EAR products in racing and athletic helmets, running shoes, hard drives, and automobiles.

This tour began with a presentation on noise and hearing protection by Elliott H. Berger, Chair of the ANSI S12/WG11 Committee on Hearing Protectors, Past President of the National Hearing Conservation Association, and principal editor of the highly regarded best-selling text, the American Industrial Hygiene Association Noise Manual.

AES was then guided through the EARCAL facility that includes a 113 m3 reverberant test chamber with vanishingly low background noise levels, as well as state-of-the-art instrumentation for hearing protection measurements. We also visited the NOVICON laboratory for demonstrations of sound quality instrumentation and damping measurements, and a presentation of high-speed video recording techniques to evaluate shock-drop isolation testing.

Meeting Report — May 19, 2003

Date: May 19, 2003 at 7:00 PM
Topic: The Modern Pipe Organ: A Fascinating Integration of Technologies
Place: St. Luke’s Methodist Church, 86th and Meridian Street, Indianapolis

Tom Wood, co-founder of Goulding and Wood, Indiana’s only pipe organ builders, will present a discussion about the contemporary pipe organ.  Tom will touch on topics such as: the basic organ pipe, air pressure/pneumatics, digital electronics for control and memory, electronic tone generation, midi application, acoustic considerations and the organ as a total musical instrument.

Meeting Report — April 22, 2003

Date: April 22, 2003, 7:00 PM
Topic: Inside CEDIA Boot Camp with Jeff Kussard and Frank White
Place: CEDIA Training Facility, 7150 Winton Drive, Suite 200, Indianapolis, IN 46268

Directions:This is about 1 mile EAST of I 465 (toward the city).  The building is visible from 71st Street.

Presenters will be Jeff Kussard, industry consultant and current CEDIA Board member and CEDIA instructor, and Frank White, head of CustomMetrics, CEDIA Past Board Member and CEDIA Instructor.

Meeting Report — June 12, 2002

Date: June 12, 2002 @ 7:00 pm
Topic: Tour and Presentation by Phil Hodson, Encompass Systems
Place: Encompass Systems, 8940 Vincennes Circle, Indianapolis 46268

First, a big thank you to Encompass Systems for hosting us last week. The tour and talk by Phil Hodson was most interesting and lots of fun was had by all. Second, a thank you to all the hosts this year: Auralex, CEDIA, Klipsch, Koorsen and Encompass. Without their generosity, this year could not have happened. Thirdly, we have reached the end of our first season as a fully reinstated Section. Kudos go out to all who have made the past year truly worth it. To all my co-Officers and to our Executive Committee, I personally thank you for making my job easier.

We have also reached a beginning of sorts: we have such a great bunch, the continued success of our Section is almost a given. Elections were held on June 12, 2002 at our meeting and I am very proud to announce our Officers for the 2002-2003 Season:

Chair: Barrie Zimmerman
Vice-Chair: Mark Fritz
Secretary: Mike Hayes
Treasurer: Jeff D. Szymanski

Note: The election of Mark Fritz to Vice-Chair has left a vacancy on the Executive Committee. However, since the by-laws state that an Executive Committee can consist of “three or more” members, it was decided to leave the Committee as is.

Well, that’s about all I have. Once again, a very big thanks to all of you. It has been a wonderful experience for me and I think we are well on our way to many solid years of audio exploration.

Best regards,
Jeff D. Szymanski
Chief Acoustical Engineer, Auralex Acoustics, Inc.
Outgoing Chair, AES Central Indiana Section

Meeting Report — March 6, 2002

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

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

Meeting Report — October 17, 2001

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.

Meeting Report — September 7, 2001

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.