Sound Sources for RT Measurements
What's the best way to measure reverb times? Balloon pops? Omni loudspeakers? This article compares multiple source types and presents some surprising conclusions that can greatly simplify the RT collection process.
Human Processing of Reflected Sound
This is another perspective on the significance of reverberation time and early-decay time, and the relationship between the two.
Constant-Beamwidth Transducer (CBT) Arrays
Don Keele, Jr. is at it again. His CBT line array has interesting and useful radiation properties. This introduction to the technology with get you thinking about possible applications.
Lakewood Church Revisted
Lakewood Church is the largest house of worship in the US. The Heard's own Russ Berger was instrumental in its transformation from a basketball arena to an auditorium. These room impulse responses allow you to listen to the space, analyze the data, and take a virtual visit to one of the best-behaved arena-sized spaces in the world.
Origins of Preferred Numbers
Don shows how to calculate the ISO fractional octave center frequencies.
Coaxial Cable – Mathematics Primer for Vector Fields
Dr. Patronis will be writing a series of articles on the properties of coaxial cable. This primer lays some mathematical ground work for the motivated learner. This should be a part of every engineers technical library.
Gauss's Law and the Electrostatic Field
The third installment of a series of articles dealing with the properties of coaxial cables.
The Properties of Coaxial Cable – Part 1 The Magnetic Field
Once the reader has considered "The Field," they are ready to reconsider how wires really work. Dr. Patronis presents the subject in Part One of a short series on electricity and magnetism.
Reality Check! Are like make / model loudspeakers consistent?
How consistent are production loudspeakers? Measured data is used to compare the responses of 12 units of the same make/model.
Integration Convergence and the Future of the World
Much confusion surrounds the use of these two terms. The 2006 Convergence Summit sorts things out.