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Wednesday, June 17, 2009
PSW Staff
06/17/09 09:43 AM,
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Ohm’s Law states the relationship between current, voltage and resistance. Watt’s Law states the relationships of power to current, voltage and resistance.
Enter any two known values and press “Calculate” to solve for the others.
Fields should be reset to 0 before each new calculation.
Equations used to calculate the data:
V = IR
P = VI
Where:
I = current
P = power
R = resistance
V = voltage
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Thursday, June 11, 2009
PSW Staff
06/11/09 08:11 AM,
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This calculation will give you the ratio, in decibels, between two voltages. For example, you can calculate the gain needed to raise the output level from 0.775 volts to 1.4 volts. You can also use this to calculate how much attenuation you need if, for instance, you have a 2.0 volt input level and you need to attenuate it to 0.2 volts to prevent input overload. Enter any two values and press “Calculate” for the remaining value. Press “Reset” before…
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Tuesday, June 02, 2009
PSW Staff
06/02/09 09:55 AM,
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Figures calculated for various program material use estimated duty cycles, taking into account the typical crest factor for each type of source material. The choices typically available in the calculators are as follows. Pink Noise: Duty cycle of 50%. Dance: Duty cycle of 40%. Typically highly-compressed, low-frequency material at very high levels. Hard Rock: Duty cycle of 30%. Full-range, continuous rock music at concert levels. BGM: Duty cycle of 20%. Background music, typically used in business music applications at low…
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Friday, May 15, 2009
PSW Staff
05/15/09 01:56 PM,
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At the upcoming 2009 InfoComm show in Orlando, Danley Sound Labs is introducing the new SH-64 loudspeaker, designed as a stand-alone system for the broad range of applications requiring high-SPL and low distortion. The SH-64 offers three-way design that incorporates nine drivers in a single horn enclosure. Comprising four 15-inch woofers, four 4-inch mid-frequency drivers and a single 1.4-inch high-frequency driver in a patent-pending enclosure, the Danley Sound SH-64 offers great fidelity, low-frequency pattern control and exceptional magnitude/phase response. It…
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Dave Dermont
05/15/09 10:42 AM,
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I can’t believe I have been at my new house gig for a couple months now. Time sure flies when you’re having fun! I wasn’t there when they brought in the gear and set it up, so some things are not the way I would have set them up. The mixer is on top of the outboard rack, like you’d do with a portable rig. Bending down behind a rack is not the best way to hear the tweaks you’re…
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Sunday, April 19, 2009
PSW Staff
04/19/09 11:16 AM,
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Wireworks has introduced new TacCat Network Cords and Multi-TacCat Assemblies, as well as new Dazzler Microphone Cords with Neutrik crystalCON connectors, which are XLR connectors encrusted with genuine Swarovski crystals. TacCat provides CAT5e Ethernet interconnection with rugged construction. Available in single channel cords and multichannel assemblies, they are specified for use in the field as well as the studio. TacCat features full spec CAT5e in a heavy-duty outer jacket that is more than twice the thickness of computer room patch…
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Friday, April 17, 2009
James Cadwallader
04/17/09 10:09 AM,

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A few nights ago, I attended the gig of a friend of mine who plays guitar. He’s a great player and a pretty cool guy. Sound-wise, there was a lot of stage wash that helped make the room sound muddy, and the house mix wasn’t doing much to help bring some presence and clarity to the whole picture. I took a peek at the console and was glad to see the main fader at unity, though the submix faders were…
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Friday, February 13, 2009
PSW Staff
02/13/09 01:50 PM,
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Sennheiser will kick off its 2009 Sound Academy seminar schedule with its popular RF wireless course on March 2, 2009 at the Mandalay Bay Resort & Casino in Las Vegas. Sound Academy is a traveling series of one-day seminars for professionals and students with interest in broadcast, theater, film and music. Focusing on both RF wireless techniques and studio recording practices, the Sound Academy sessions have visited over 20 cities throughout the U.S. thus far, with more on the way…
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Thursday, November 25, 1982
Ron Huisinga
11/25/82 01:04 PM,
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This article is provided by New Life Communications. As you visit other churches for weddings or other reasons, you probably have noticed a number of different sound system designs. Some churches have column loudspeakers on the front walls. Another church will have many loudspeakers on the side walls. There are churches that have loudspeakers in the hanging light fixtures. Others have many loudspeakers mounted under the pews. It is apparent that there are many different approaches to providing a…
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