Limiting Factors in Room Modeling
by Pat Brown
It's been about two decades since the the first use of computer ray tracing to approximate the room impulse response (RIR).
RIR prediction was a natural extension of previous work in the field of optics - a very important point that I will come back to.
Phase Distortion and other news from SAC Summer of 1982
From SynAudCon Newsletter Volume 9 Number 4 Summer 1982
PHASE…
Loudspeaker Power Ratings – Why all the Fuss About Power?
By Pat Brown
Loudspeaker power ratings is a confusing topic in…
Loudspeaker Pairs – How Close Are They?
Tools of the Trade - By Pat Brown
Does two like loudspeakers…
TetraMic™ – Sights and Sounds of Commonwealth Stadium
A mic array allows the realism of a college football rivalry to be captured
Low-Frequency Loudspeakers Cancellation – Black Hole Sum
By Dale Shirk
At the Loudspeaker Arrays Workshop, Kurt Graffy…
Manifold Drivers – How Much Additional SPL is Realized.
Two drivers can be manifolded onto a single horn to achieve increased acoustic output. But "how much "is not as straightforward as one might think.
Polarity 101 – Some subtleties regarding device polarity
Since most sound reinforcement equipment uses bipolar power supplies (allowing the audio signal to swing positive and negative about a “zero” reference point), it is possible for signals to become inverted in polarity (flipped over).
Understanding Horn Directivity Control
Pattern control is essential in sound reinforcement systems. The beamwidth of a horn is determined by some key size/wavelength relationships. Charlie provides a short history and an overview of the math.
Susceptability in Microphones
by Jim Brown
In the last newsletter, we saw how RF voltage coupled…