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Thursday, May 16, 2013
Charlie Hughes 05/16/13 05:56 PM,I’ve heard it argued by that square waves contain DC. How else could they have the flat top and bottom that make it square? Let’s look at a square wave and see what causes it to have its square shape. A complex waveform can be constructed from, or decomposed into, sine (and cosine) waves of various amplitude and phase relationships. This is the basis of Fourier analysis. A square wave consists of a fundamental sine wave (of the same frequency… View this story
Filed in: AV • Feature • Blog • Study Hall • AV • Measurement • Processor • Signal -
Tuesday, May 14, 2013
Pat Brown 05/14/13 04:06 PM,The procedure often followed for equalizing a loudspeaker is to place the measurement microphone on-axis and adjust for the flattest frequency response. This often involves boosting some filters when the axial response over a range of frequencies is lower than the average. Those that are opposed to the use of boost filters may choose to arrive at the same resultant response by reducing (cutting) parts of the response to the lowest common denominator. This results in the same electrical curve,… View this story
Filed in: AV • Feature • Blog • Study Hall • AV • Loudspeaker • Measurement • Processor • Sound Reinforcement -
Monday, May 13, 2013
Jerrold Stevens 05/13/13 03:21 PM,Ever have one of your friendly amplifier reps walk in your office to present their new mondo-gazillion-watt beast and point out the damping factor spec of greater than a bazillion? Why, gee-whiz! That’s like 10 times more than the other guy! It must be awesome! Right? Well, as we have seen before, it depends on how you are going to use it. Let’s start with defining damping factor and see what it means to us. Amplifier damping factor is defined… View this story
Filed in: AV • Feature • Blog • Study Hall • Amplifier • AV • Interconnect • Loudspeaker • Measurement • Signal • Subwoofer -
Thursday, May 02, 2013
PSW Staff 05/02/13 01:14 PM,Although they’ve been around for decades, line source (“column”) loudspeakers have enjoyed increased popularity due to recent upgrades in technology. With a slim physical footprint that addresses aesthetic concerns, they’re an attractive option in many applications, particularly in highly reverberant acoustic environments, offering minimal vertical coverage above and below the enclosure and coherent sound (particularly in the vocal range). This can be achieved passively or in tandem with DSP that offers further tailoring of coverage. Let’s have a look at… View this story
Filed in: AV • Feature • Blog • Product • AV • Installation • Line Array • Loudspeaker • Processor • Sound Reinforcement -
Wednesday, May 01, 2013
Craig Leerman 05/01/13 04:36 PM,Some in audio think that the term “rigging” only applies when loudspeakers are flown, but it also pertains to lesser endeavors such as placing a single loudspeaker on a tripod stand. The bottom line is that for any piece of production gear not sitting directly on the ground, steps must be in place to insure that it does not fall and injure someone (or worse). The Occupational Safety and Health Administration (OSHA), the U.S. agency that sets and enforces work… View this story
Filed in: Live Sound • Feature • Blog • Study Hall • Installation • Interconnect • Line Array • Loudspeaker • Sound Reinforcement -
Monday, April 29, 2013
Teri Hogan 04/29/13 03:51 PM,A concert sound system is, in reality, two completely separate sound systems, joined at the hip by a split snake. Each system requires a skilled engineer, but the skill-sets between the two differ vastly. The thing that baffles me is how ill regarded the position of monitor engineer is among my brethren. It can be easily argued and defended that the monitor engineer works twice as hard as everyone else on the crew, unless he/she is lucky enough to have… View this story
Filed in: Live Sound • Feature • Blog • Study Hall • Concert • Engineer • Monitoring • Sound Reinforcement • Stage • Technician -
Wednesday, April 10, 2013
Craig Leerman 04/10/13 03:58 PM,Easily one of the most important parts of the sound system signal chain is the loudspeaker. It’s the component that not only converts the electronic signal back to sound waves, but also interacts with the room. Despite the unyielding laws of physics and other practical limitations, we see a steady stream of new developments that get us closer to the “ideal” in addition to presenting new options. Let’s take a look at some of the current trends in full-range loudspeaker… View this story
Filed in: Live Sound • Feature • Blog • Product • Line Array • Loudspeaker • Sound Reinforcement • Subwoofer -
Thursday, March 28, 2013
Mike Sessler 03/28/13 06:32 PM,This article is provided by ChurchTechArts. A few weeks ago, we had the opportunity to demo a new loudspeaker system in our auditorium. Our existing PA is not great; well let me rephrase that. It’s a decent PA that is completely wrong for our room, and is installed wrong. Of the 12 boxes (6 per side), 8 of them are pointed at walls, not at people. That leads to a highly reverberant sound field (something you’ve heard me talk… View this story
Filed in: Church Sound • Feature • Blog • Study Hall • Business • Engineer • Line Array • Loudspeaker • Sound Reinforcement • Technician -
Friday, March 22, 2013
John Eargle & Chris Foreman 03/22/13 09:49 AM,Compression drivers and the horns that comprise the horn loudspeaker system have been a part of the audio industry from the very beginning of product development in sound reinforcement systems. As is true for cone loudspeakers, most of the early development in horn loudspeakers began when sound was first put to picture back in the 1930s when the first “talking films” were released. Since that time, compression driver technology coupled with horn development advances have been in the areas of… View this story
Filed in: AV • Feature • Study Hall • AV • Loudspeaker • Sound Reinforcement -
Wednesday, March 06, 2013
Mike Sessler 03/06/13 03:13 PM,This article is provided by ChurchTechArts. I know a lot of churches that mix monitors from front of house. For most of my church career, that’s been the case. To be sure, having a dedicated monitor position, console and engineer is a lot easier, but it’s not practical for most of us. And while we’d all love to have all our musicians and vocalists on in-ears, wedges still are a fact of life for many churches. For most of… View this story
Filed in: Church Sound • Feature • Blog • Study Hall • Loudspeaker • Mixer • Monitoring • Signal • Sound Reinforcement
Articles Tagged Loudspeaker World
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