Month: May 2010

Are Assistive Listening Devices Safe to Use With Pacemakers?

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Why Portable Amplifiers Are a Better Assistive Listening Device for Pacemaker Wearers With today’s explosion of wireless technology,  a sea of data regarding the safety of everything from cell phones to assistive listening devices has spawned a lively and sometimes confusing public health debate. Nowhere is this confusion more apparent than in the controversy over whether or not — or… Read the rest

2 Vehicle Mounted PA Systems Take Your Message on the Move

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Hit the Road With a Vehicle Mounted PA System Stationary PA systems can easily reach fans seated in bleachers, but for events where the participants (or the announcers) are in motion, a PA system that can move with the crowd becomes crucial. And while megaphones and mini PA systems are highly portable, they are impractical for situations such as parades… Read the rest

Megaphones & Bullhorns Get Your Words Heard

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What Are Megaphones? Megaphones, also known as bullhorns, are instantly recognizable because of their distinctive conical or bell shape. For thousands of years,  the human voice has been projected by megaphones. This is due to the natural acoustic properties of their parabaloid shape, which  focuses sound waves to make them travel further, but in a narrow arc. What is relatively… Read the rest

What’s the Best Mic for Recording High-Pitched Percussion?

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Consider this: you’re recording a Merengue ensemble and the microphones are picked out for the marimba, accordion, guitar and tambora. But the güira, with a metallic sound extending well into the high frequencies (and at higher sound pressure levels), demands special attention. How do you address this issue? First, let’s take a look at exactly what a güira is for… Read the rest

Passive Noise Cancelling Headphones Provide Peaceful Travels

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Passive Noise Cancelling Headphones Block Background Noise the Easy Way Look around the bus, train, or plane the next time you travel. Chances are, many of your fellow travelers are sporting headphones. Favorite podcasts or music playlists are tried and true ways to brighten a commute. But the struggle to eliminate background noise can cause commuters to crank up the… Read the rest