by Pat Brown
“One number” power ratings for both loudspeakers and amplifiers are now accepted at face value and seldom questioned. Large numbers are tossed around, often … Read more
Location: Pittsburg, PA
Investigator: Pat Brown
Description: The O’Reilly Theater is a 650 seats semi-reverberant space located in the famous Pittsburg cultural district. The reverberation time is just under 1 sec, with the acoustics of the space optimized for natural … Read more
The first step in the sound system design process is the acoustical site survey. For many projects it is important to assess … Read more
“Constant voltage” is one of the more confusing terms used by the audio industry. Pat Brown brings clarification to this term.Those new to the audio field are often dismayed by the subjective nature of many audio terms, which may … Read more
Location: Beijing, China
Investigator: Pat Brown
Description: Large recording studio (52,000 ft³) at university. Walls are combination of absorption and scattering. The room was partially occupied (about 60 people). With a T30 of about 0.6 sec, this room is not … Read more
Location: Southeast Christian Church – Louisville, KY
Investigator: Pat Brown
Description: Low and medium Q source comparison. The low Q source is a dodecahedron. The medium Q source is a QSC K12. The distances are 30 ft, 60 ft, and … Read more
by Pat Brown
Mark Haymond sent me an interesting impulse response that serves as a great example of “flutter” echo. It was captured at a pistol range, where the shooter stands between two block walls, with an earth berm at … Read more
Location: Cannelton, IN
Investigator: Pat Brown
Description: Loudspeaker comparison made in reverberant church. Distances are 6 m and 12 m.… Read more