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A/V features

  • Thursday, June 30, 2016
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    Nigel Redmon 06/30 12:45 PM,
    This article is provided by EarLevel Engineering.   Here we lay the foundation. We’ll look at analog to digital conversion, and we’ll look at the spectrum of the resulting digital signal. We’ll use that knowledge to help understand the conversion process back to analog. Though we can build real-world converters that work as described, we’re not building practical converters here; we’re interested in the mathematical concepts involved and their relationships to digital signal processing. Analog To Digital Conversion The sampling… View this story
    Filed in: AVFeatureStudy HallAVDigitalDigital Audio WorkstationsEducationMeasurementSoftware

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    Merlijn van Veen 06/30 06:13 AM,
    “It turns out that, within very generous tolerances, humans are insensitive to phase shifts. Under carefully contrived circumstances, special signals auditioned in anechoic conditions, or through headphones, people have heard slight differences. However, even these limited results have failed to provide clear evidence of a “preference” for a lack of phase shift. When auditioned in real rooms, these differences disappear…” – Dr. Floyd Toole As Dr. Toole states, a lot of people, including myself, have a hard time detecting phase… View this story
    Filed in: AVFeatureStudy HallAVEducationLoudspeakerMeasurementSound Reinforcement

  • Tuesday, June 21, 2016
    dennis bohn
    Dennis A. Bohn 06/21 11:20 AM,
    This article is provided by Rane Corporation.   This paper discusses the pitfalls (often subtle) of our industry’s failure to define and standardize what “unity gain” means, and the conditions necessary to measure it. It further discusses how people improperly use one piece of misinformation (impedance matching) to correct for this lack of standardization. All done, without knowing discrepancies exist between different pieces of equipment, and without knowing impedance matching is unnecessary, signal degrading, and wasteful. For me, it began… View this story
    Filed in: AVFeatureBlogStudy HallAmplifierAVInterconnectMeasurementPowerSignalSound Reinforcement

  • Monday, June 20, 2016
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    Chris Johnson 06/20 06:17 AM,
    This article is provided by Commercial Integrator   A growing number of businesses, learning facilities and houses of worship are embracing AV technologies. After all, services like videoconferencing, multimedia presenting and even full-on telepresence can substantially benefit collaboration and productivity. Rather than leave AV as an afterthought, it’s important for these organizations to prioritize AV during the construction phase of new builds or remodels to ensure the technology performs optimally. Collaborative Tools, Collaborative Construction Ironically, many AV solutions are designed… View this story
    Filed in: AVFeatureBlogAVBusinessInstallationSystem

  • Friday, June 17, 2016
    amplifiers
    Pat Brown 06/17 06:26 AM,
      How much power can an audio amplifier produce? As you might expect, “it depends.” I will approach this from two angles—in theory and in practice. This article will deal with the theory. Part 3 will show how things play out in the real world. Importance Of Efficiency Amplifiers don’t make power. They convert it. Any audio power that comes from your amplifier must in turn come from the utility outlet that it is connected to. This is why the… View this story
    Filed in: AVFeatureBlogStudy HallAmplifierAVMeasurementPowerSound Reinforcement

  • Wednesday, June 15, 2016
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    PSW Staff 06/15 06:07 AM,
    InfoComm 2016, the annual conference and exhibition for the professional audio-visual market held in June in Orlando, was attended by 38,833 visitors, 4.8 percent more than the last time the show was held in Las Vegas. A record 1,000 exhibitors, including 211 new exhibitors, filled the Las Vegas Convention Center June from June 8 through 10, occupying 527,105 net square feet of exhibit and special events space — also a show record. “This is a thriving, growing, busy industry —… View this story
    Filed in: AVFeatureNewsSlideshowAmplifierAVBusinessConsolesDigitalDigital Audio WorkstationsLine ArrayLoudspeakerManufacturerMicrophoneMixerNetworkingPowerProcessorSoftwareSound ReinforcementSubwoofer

  • Tuesday, June 14, 2016
    fremont street vegas
    Greg DeTogne 06/14 10:49 AM,
    Fremont Street is where it all really started in Las Vegas. As the site of many firsts for both the city and Nevada, consider that within an area of five fabled downtown blocks, the city’s first hotel was built (the Hotel Nevada in 1906), Nevada’s first gaming license was issued (to the Northern Club), and the town’s first high-rise took shape (the Fremont Hotel in 1956). By 1992, however, Fremont Street was no longer leading the way, a fact underscored… View this story
    Filed in: AVLive SoundFeatureAVDigitalInstallationLine ArrayLoudspeakerNetworkingProcessorSound Reinforcement

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    Curt Taipale 06/14 06:25 AM,
    This article is provided by Church Soundcheck.com.   The popular Charismatic phrase – “flowing with the Spirit” – has caused more harm and more strife and more heartache than probably any other phrase in the Christian’s vocabulary I can think of. There have been times when there I was, happily busting my rear to get a particular audio ministry job done, only to hear the immortal Charismatic church trademark of “oh, by the way, we’re changing this, this, this and… View this story
    Filed in: Church SoundFeatureBlogAVBusinessEngineerSound Reinforcement

  • Friday, June 10, 2016
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    Mike Sessler 06/10 06:23 AM,
    This article is provided by ChurchTechArts.   Editor’s Note: This story originally ran in December 2010, but the information is still very relevant and worthy of repeating. This week is production week for us at Coast Hills. And it’s quite a production; Gunch! is an (almost) all-original musical-style stage play with an 80+ member cast, 13 person pit band and five performances over the weekend with an expected attendance of 4500+. It’s quite an undertaking. This past Friday was opening… View this story
    Filed in: Church SoundFeatureStudy HallAVEngineerSound ReinforcementStageTechnician

  • Thursday, June 09, 2016
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    Bruce Main 06/09 11:34 AM,
    Trap boxes and line arrays get all the attention. And that’s no surprise – they’re big and loud, and dare I say it, glamorous. But the truck rarely rolls without a complement of two-way loudspeakers sporting a 12-inch or 15-inch woofer and a horn. Whether its monitor wedges, drum fill, front fill or just “speakers on sticks,” small 2-way boxes do many of the everyday jobs that make up a typical sound reinforcement day. We take the performance of these… View this story
    Filed in: AVFeatureStudy HallAVEducationEngineerInstallationLoudspeakerMeasurementSound Reinforcement



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