2005 Training Progam
Title: Loudspeaker System Theory

Date: January 4, 2005 (prior to the start of CES)

Location: Tropicana Hotel & Resort, Las Vegas

Click here to download the Attendee Registration form.

Click here to download the Housing Reservation form.

January 4

8:00 AM - 5:00 PM

The Loudspeaker System Theory Training Program will be presented by Dr. Earl Geddes. Your registration fee also includes a copy of Dr. Geddes book titled “Audio Transducers”. This training program is value priced at just $325 for ALMA members and $395 for non-members. Please use the Symposium Attendee Registration form to register.

The training program will cover the following topics:

1) Models

a. Lumped parameter

b. T-Matrix

c. Continuous

2) Transduction mechanisms

a. Moving coil

b. Variable reluctance

c. Piezo-electric

d. Electrostatic

e. Examples

3) Basic Acoustics

a. Wave equations

b. Solutions for Sound Radiation

c. Examples in various coordinate systems

d. Rigid piston radiation

e. Non-rigid radiation

f. The radiation problem as a transform

4) Basic Enclosure design

a. Closed

b. Ported

c. Dual Ported

d. Acoustic Lever

5) Waveguides

a. Problems with Horn theory

b. The Waveguide approach

c. Higher Order modes

d. Mouth diffraction

e. Examples in various coordinate systems

6) Basic Crossover design

a. Loudspeakers as load

b. The acoustic response

c. Examples

7) Distortion

a. Perception studies

b. Modeling

8) Measurements

a. Frequency response

b. Polar response

c. First mode parameter extraction

d. Modal polar measurements