Moulton Laboratories
the art and science of sound
Many of the articles on these pages originally appeared in magazines such as Recording and TV Technology. Out of deference to the publishers involved, works written in the last two years will generally not be shown.
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About Comb Filtering, Phase Shift and Polarity Reversal
The phenomena of comb filtering, phase shift and polarity reversal are surrounded in myth and are a bedrock topic for audio engineers.
AcousticsMixingRecording Magazine
August 1993
June 2006
Making Loudspeakers And Control Rooms That Make Music “Sound Good”
An unabridged version of an article that originally appeared in Mix Magazine, edited by Moulton.
AcousticsLoudspeakersStudio Design
January 1999
The Microphone vs. the Ear
Why Recordings Don't Sound Quite Like the Real Thing and Some Things You Can Do About It. An informal introduction to the realities of psychoacoustics.
AcousticsHearingMicrophonesRecording Magazine
May 1993
Nick Batzdorf Interviews David Moulton
Regarding Acoustics of Control Rooms and Loudspeakers.
Acousticsdavemoulton.comStudio DesignRecording Magazine
February 1999
Principles of Multitrack Mixing: the Use of Early Delays
Early delays are those "echos" following the initial onset of a sound (usually room reflections), which effect a great impact on a sound's apparent quality.
AcousticsMixingRecording Magazine
November 1992
Taming the Big Wave
Getting Control of Low Frequencies in the Studio and Control Room
AcousticsStudio DesignRecording Magazine
January 1997