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All Measurement Posts

  • Friday, July 15, 2016
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    Bob Thurmond 07/15/16 01:09 PM,
    EDITOR’S NOTE: This fine article was featured in the March 2004 issue of Live Sound International. We reprint it here in celebration of our 25th anniversary. How many sound systems are in use? Many millions, for sure, and they’re found in all types of venues and for all kinds of programs. So one would think we’d know exactly how to do it by now. But there seems to be plenty of examples to prove that we don’t. Why should this… View this post
    Filed in: Live SoundFeatureBlogStudy HallAnalogAVDigitalEducationLoudspeakerMeasurementSound ReinforcementSystem

  • professional audio
    Karl Winkler 07/15/16 05:43 AM,
    When I was getting stated in this business, I had some excellent mentors along the way. One of the things they taught me was to be prepared with a set of tools and the knowledge to use them properly. While organizing the U.S. Air Force Band Sound Workshop (an annual event for military sound engineers) during the 1990s, I passed along this information to the budding audio people, many of whom were musicians transitioning to sound for a variety of… View this post
    Filed in: Live SoundFeatureBlogStudy HallBusinessEducationEngineerMeasurementSound ReinforcementSubwooferTechnician

  • 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 post
    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 post
    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 post
    Filed in: AVFeatureStudy HallDigitalEducationEngineerMeasurementSound Reinforcement

  • Wednesday, July 06, 2016
    equalizers
    Dennis A. Bohn 07/06/16 11:17 AM,
    This article is provided by Rane Corporation.   You may have heard it said that equalizers are nothing more than glorified tone controls. That’s pretty accurate and helps explain their usefulness and importance. Simply put, equalizers allow you to change the tonal balance of whatever you are controlling. You can increase (boost) or decrease (cut) on a band-by-band basis just the desired frequencies. Equalizers come in all different sizes and shapes, varying greatly in design and complexity. Select from a… View this post
    Filed in: AVFeatureBlogStudy HallAVMeasurementProcessorSound Reinforcement

  • Thursday, June 30, 2016
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    Nigel Redmon 06/30/16 12:45 PM,
    PSW Top 20 presented by Renkus-Heinz   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 theorem… View this post
    Filed in: AVFeatureStudy HallAVDigitalDigital Audio WorkstationsEducationMeasurementSoftware

  • image
    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 post
    Filed in: AVFeatureStudy HallAVEducationLoudspeakerMeasurementSound Reinforcement

  • Wednesday, June 29, 2016
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    PSW Staff 06/29/16 06:51 AM,
    Listeners can hear a difference between standard audio and better-than-CD quality, known as high-resolution audio, according to a new study published in the June issue of the Journal of the Audio Engineering Society (JAES) by Dr. Joshua Reiss of the Centre for Digital Music, Queen Mary University of London (QMUL).  The meta-study compared data from 18 studies involving 450 participants listening to samples of music in different formats. In total, the studies involved over 12,000 different trials where participants were… View this post
    Filed in: RecordingNewsDigitalEducationMeasurementStudio

  • Tuesday, June 28, 2016
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    Joe Gilder 06/28/16 06:04 AM,
    This article is provided by Home Studio Corner.   I know it may be hard to believe, but I too used to believe this was true. I had simply never given it much thought. Maybe you’re in the same boat? The issue was, I made the mistake of confusing headroom with dynamic range. Put simply, when I looked at the master fader, if there was a lot of room between the loudest peak of my mix and 0 dBFS (clipping,… View this post
    Filed in: RecordingFeatureProductionAudioDigitalMeasurementMixerMonitoringSignalSoftwareStudioSystem



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