Pat Brown, Author at Prosoundtraining

A Contrast of Statistical and Geometric Room Acoustic Analysis

May 17, 2021 in Acoustics, SynAudCon Library, Test and Measurement /by Pat Brown

by Pat Brown

Statistical and geometric room acoustics analysis have been with us for well over a century. Computer modeling makes geometric acoustic analysis (GA) practical at the drawing board. This article contrasts the two methods.

The room impulse … Read more

Room Survey 38 – Ministry of Foreign Affairs – Bangkok, Thailand

May 17, 2021 in Room Surveys, SynAudCon Library /by Pat Brown

Location: Bangkok, TH

Investigator: Tanadej Siriwattaprayoon¹

Room: Vethes Samosorn, Ministry of Foreign Affairs

Microphone: Omni

Loudspeaker: NTI DS2 with NTI PA3 amplifier

Source Signal: 14-sec log sweep

Convolver/Deconvolver: GratisVolver™

Introduction
It’s been a while since I have published a … Read more

Richard Heyser on TDS

February 4, 2021 in Acoustics, General, SynAudCon Library, Training Videos /by Pat Brown

Small Room Acoustics in the Zoom Era

September 25, 2020 in Acoustics, SynAudCon Library, Test and Measurement /by Pat Brown

by Pat Brown

Solving the acoustical problems of small spaces requires a different palette of tools than those used in large spaces.

Room resonances can extend well up into the speech range to complicate conferencing, recording, and online meetings creating

Idealized Models Help Us Understand Real-World Audio and Acoustic Concepts

May 12, 2020 in Acoustics, Electronics, SynAudCon Library /by Pat Brown

The theoretical provides a reference for understanding the physical world

Ideal vs. Real

The fields of audio and acoustics are a mystery to much of the general engineering community. The blend of art, science, objective, and subjective makes audio and … Read more

Two Amplifier Channels, One Loudspeaker

March 24, 2020 in Electronics, Microphones & Loudspeakers, SynAudCon Library /by Pat Brown

Updated March 2020

The most popular form factor for audio power amplifiers is two-channel or “stereo.” Pat Brown answers this question, “Why two amplifier channels?”

Why two amplifier channels? It’s most likely due to the popularity of stereo playback systems … Read more

Peaks vs RMS – Keeping Peaks in Their Place

January 31, 2020 in Acoustics, Electronics, SynAudCon Library, Test and Measurement /by Pat Brown

Peaks vs RMS: This article explains why the modern obsession with “peak performance” represents a step backward in developing meaningful ratings and performance metrics for audio equipment.

I’ve enjoyed watching audio technology advance over the past decades, and I enjoy … Read more

Common Amplifier Format: MiniDSP PWR-ICE125

November 15, 2019 in Electronics, SynAudCon Library /by Pat Brown

by Pat Brown

Overview

The MiniDSP PWR-ICE125 is a 2-channel plate amplifier for active 2-way loudspeakers or subwoofers. Since these articles are tutorial in nature, I’ll use the PWR-ICE125 to present some important fundamentals regarding amplifier ratings and SPL calculations. … Read more

Common Amplifier Format: Lab Gruppen E 12:2

September 27, 2019 in Electronics, SynAudCon Library /by Pat Brown

by Pat Brown

Pat Brown continues with the Common Amplifier Format (CAF) series. In this article, he overviews the Lab Gruppen E 12:2 amplifier, which is targeted for the installed sound market.

Overview

The Lab Gruppen E 12:2 is

Why Do We Equalize In 1/3-Octave Bands?

July 26, 2019 in SynAudCon Library /by Pat Brown

by Richard Honeycutt

Richard Honeycutt explains why most equalize in 1/3 Octave Bands. He has included 30 sound clips so readers can evaluate the perceptibility of frequency-response deviations.

A recent forum thread has discussed the question of why we EQ … Read more

About Pat Brown

Entries by Pat Brown

A Contrast of Statistical and Geometric Room Acoustic Analysis

Statistical and geometric room acoustics analysis have been with us for well over a century. Computer modeling makes geometric acoustic analysis (GA) practical at the drawing board. This article contrasts the two methods.

Room Survey 38 – Ministry of Foreign Affairs – Bangkok, Thailand

Richard Heyser on TDS

Small Room Acoustics in the Zoom Era

Solving the acoustical problems of small spaces requires a different palette of tools than those used in large spaces.

Room resonances can extend well up into the speech range to complicate conferencing, recording, and online meetings creating

Idealized Models Help Us Understand Real-World Audio and Acoustic Concepts

The theoretical provides a reference for understanding the physical world

Two Amplifier Channels, One Loudspeaker

The most popular form factor for audio power amplifiers is two-channel or “stereo.” Pat Brown answers this question, “Why two amplifier channels?”

Peaks vs RMS – Keeping Peaks in Their Place

Peaks vs RMS: This article explains why the modern obsession with “peak performance” represents a step backward in developing meaningful ratings and performance metrics for audio equipment.

Common Amplifier Format: MiniDSP PWR-ICE125

Common Amplifier Format: Lab Gruppen E 12:2

Pat Brown continues with the Common Amplifier Format (CAF) series. In this article, he overviews the Lab Gruppen E 12:2 amplifier, which is targeted for the installed sound market.

Overview

Why Do We Equalize In 1/3-Octave Bands?

Richard Honeycutt explains why most equalize in 1/3 Octave Bands. He has included 30 sound clips so readers can evaluate the perceptibility of frequency-response deviations.

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