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Articles Tagged Measurement

  • Tuesday, July 26, 2016
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    Leslie Watts 07/26/16 12:36 PM,
    This article is provided by L M Watts Technology   I’ve always admired ribbon microphones, having built them in my high school years from gum wrapper foil, surplus magnetron magnets, and filament transformers. Much Later after research and design engineering stints at Shure, Electro-Voice, and other places I wanted to add a ribbon mic to my new microphone company. But I wanted something a little different from a standard figure 8 design. I was fascinated with the multi pattern/non figure… View this story
    Filed in: AVFeatureStudy HallAVEducationEngineerManufacturerMicrophoneSound ReinforcementStageStudio

  • Monday, July 18, 2016
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    PSW Staff 07/18/16 12:33 PM,
    Adele is currently playing to sold-out arenas on a world tour. The elaborate sound needs require a constant focus on the singer and her voice. Acoustic effects are paired with consummate style during the entirety of the show. To meet the high expectations of audio perfection, the engineering team relies on the new beyerdynamic TG MM1w interchangeable measurement microphone capsule to accurately test audio levels with the benefits of its ease of use. The performance utilizes sections of both stage… View this story
    Filed in: Live SoundNewsConcertEngineerMeasurementMicrophoneSound ReinforcementStage

  • Thursday, July 14, 2016
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    Live Sound Staff 07/14/16 12:27 PM,
    Currently serving as the director of Danley (Sound Labs) University, Doug Jones grew up in northeastern Congo, the child of missionary parents, and his feelings about his childhood experience are complex: the benefits — difficult to articulate — came at considerable costs. “It’s hard to know how to share my story with anyone who wasn’t a missionary kid,” he says. “And yet it is my story; it shaped who I am today.” Jones has long mused about the radical discord… View this story
    Filed in: AVFeatureAVEducationEngineerMeasurementSound Reinforcement

  • loudspeakers
    Stephen Court 07/14/16 06:11 AM,
    Editor’s Note: This article originally appeared in the November/December 2001 issue of Live Sound International magazine. ————————————————————- At the announcement of my children’s birth, the first thing everyone asked was “what did they weigh?” It always struck me as somewhat peculiar. Of all the personal qualities you could discuss, such as the color of the hair, or how healthy they are, weight seems a strange specification. Fancy telling somebody that you have just purchased a new car: “Oh really, what… View this story
    Filed in: Live SoundFeatureStudy HallAVEducationEngineerLine ArrayLoudspeakerMeasurementSound Reinforcement

  • Tuesday, July 12, 2016
    prosoundweb
    Pat Brown 07/12/16 07:50 AM,
      Editor’s Note: Be sure to check out Pat’s related articles on this topic, including Examining FIR Filtering In Sound Reinforcement Systems and Creating & Applying FIR Filters. We live in an age of “bigger is better.” During a recent SynAudCon Forum thread, I suggested that this philosophy is not necessarily true for the length of an FIR filter. As of this writing, the typical filter length supported by DSP is 1024 taps, with some as high as 4096 taps.… View this story
    Filed in: AVFeatureStudy HallDigitalEducationEngineerMeasurementSound Reinforcement

  • Thursday, June 30, 2016
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    Nigel Redmon 06/30/16 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 06/30/16 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

  • Wednesday, June 22, 2016
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    PSW Staff 06/22/16 06:18 AM,
    Thousands of fans attending the annual Country Music Association (CMA) Music Festival, held in Nashville June 9-12, enjoyed outdoor entertainment at Ascend Amphitheater featuring a significant change in audio approach and production. Morris utilized its new d&b audiotechnik J-Series system along with the NoizCalc solution to achieve as much noise reduction in the far field as possible while maintaining the concert experience fans are accustomed to when attending a show at an amphitheater. “This was the first year Ascend Amphitheater… View this story
    Filed in: Live SoundNewsAVBusinessConcertLine ArrayLoudspeakerMeasurementSound ReinforcementSubwoofer

  • Tuesday, June 21, 2016
    dennis bohn
    Dennis A. Bohn 06/21/16 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

  • Friday, June 17, 2016
    amplifiers
    Pat Brown 06/17/16 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



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