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  • Monday, May 07, 2012
    Church Sound: Understanding Noise And Isolation In A Sanctuary
    worship audio
    Doug Jones 05/07/12 08:18 AM,
    Here we present a portion of a chapter in the book “Sound of Worship” by Douglas R. Jones, published by Focal Press. ———————————- Noise is a problem that every church must deal with regardless of its worship style or form. Noise is basically unwanted sound. It is important to realize that the definition of noise includes a subjective component. Noise is unwanted sound. Noise can be any sound that intrudes on someone’s space. It can be sound that in another… View this post
    Filed in: Church Sound • Feature • Study Hall • Measurement • Signal • Sound Reinforcement

  • Thursday, May 03, 2012
    Low-Voltage Audio Products: Power & Noise
    image
    Dennis A. Bohn 05/03/12 06:24 PM,
    This article is provided by Rane Corporation.   This is an installment in a multi-part series. Additional segments are available here. Noise Low noise and low voltage don’t like each other. Low voltage usually means portable, and portable always means low current to prolong battery life. You can design low noise and low voltage if you can be a current pig, but if you must have low noise, low voltage and low current—well, that’s difficult. Everything works against you. The… View this post
    Filed in: AV • Feature • Poll • AV • Audio • Digital • Installation • Interconnect • Signal • Sound Reinforcement • Technician

  • Transcending Tech: A Conversation With Ethan Winer, Author Of “The Audio Expert”
    audio
    Keith Clark 05/03/12 05:18 PM,
    The Audio Expert, a new book by Ethan Winer, exhaustively covers a plethora of important technical aspects of audio. But it goes much further, discussing and explaining the relationship between audio and a wide range of closely related factors. In short, it challenges you to think, to seek a deeper understanding. Just released by Focal Press (and available here), I received an advance copy and have had a hard time putting it down. Winer, who has worked with audio for… View this post
    Filed in: Live Sound • Feature • Blog • Poll • Analog • Digital • Education • Measurement • Signal • System

  • Wednesday, May 02, 2012
    In The Studio: Mic With Your Ears, Not Your Eyes
    image
    Bruce A. Miller 05/02/12 03:46 PM,
    This article is provided by BAMaudioschool.com.   Often, a young engineer will start to position microphones based on what they see done by others or read in a magazine.  Sometimes they experiment and move the mics to see if the sound improves, but usually once someone ends up with a mic setup they like they stop trying to improve it. There are certain standard approaches that have been successful, but even these approaches should never be considered “etched in stone”. … View this post
    Filed in: Recording • Feature • Poll • Study Hall • Audio • Education • Engineer • Microphone • Signal • Studio

  • Why Quiztones Belongs In Your Studio Or Classroom As A Training Tool
    quiztones
    Kyle P. Snyder 05/02/12 01:41 PM,
    This is a review of Quiztones, frequency ear training apps for Mac & iOS from Audiofile Engineering. As engineers, we all have particular strengths and weaknesses. Some are musically gifted and play multiple instruments, while others naturally take to composition. However, what about the most basic of skills - our hearing? Unless you have absolute pitch or synesthesia, we’re all playing with the hand dealt to us a birth. The only thing we can do is hone our auditory perception.… View this post
    Filed in: Recording • Feature • Poll • Product • Audio • Education • Signal • Software

  • When Eyes And Ears Don’t Agree: Perspective On The Role Of Measurement
    a/v
    Pat Brown 05/02/12 07:02 AM,
    In my previous article (here), I addressed some of the caveats of measuring sound fields in enclosed spaces. The conclusion was that the eyes and ears do not always agree when it comes to sound quality. If making acoustic measurements is so difficult, why bother? Why not tune the system based solely on listening? Because there are several very good reasons for including our eyes in the system tuning process! We humans base our concept of reality upon the evidence… View this post
    Filed in: AV • Feature • Study Hall • AV • Measurement • Signal • Sound Reinforcement

  • Tuesday, May 01, 2012
    In The Studio: The Basics Sound & Acoustics—Timbre
    recording
    Los Teignos 05/01/12 02:27 PM,
    This article is provided by Audiofanzine. Timbre is a sound’s identity. This identity depends on the physical characteristics of the sound’s medium (the matter or substance that supports the sound). Let’s take an A at 440 Hertz produced at 60 decibels: we can immediately tell if the sound was emitted from a violin, saxophone, or piano. Yet, even though the instrument is different, it’s the same note and the same amplitude. The difference is in the sound production: string, air… View this post
    Filed in: Recording • Feature • Poll • Study Hall • Digital Audio Workstations • Signal • Studio

  • Monday, April 30, 2012
    Power Lines: Determining When “Isolated Grounding” Is Needed
    a/v
    Bill Whitlock 04/30/12 02:37 PM,
    If electrical wiring, from main breaker panel to outlet, consists of Romex and plastic J-boxes, an “isolated” or “technical” ground system is already in place. This is the case In most, but not all, residential wiring. However, when wiring consists of metallic conduit and J-boxes, as in most commercial buildings, an isolated safety-grounding scheme can sometimes reduce audio system noise. It is most applicable in situations where conduit may come in contact with building steel, water pipes, gas pipes, or… View this post
    Filed in: AV • Feature • Study Hall • AV • Power • Signal

  • Friday, April 27, 2012
    FiberPlex Technologies Introduces WDM16 Active Wave Division Multiplexer
    fiber optics
    PSW Staff 04/27/12 05:51 PM,
    FiberPlex Technologies has released the WDM16, a 16-channel active wave division multiplexer that does not require optical wavelength matching, which allows users to use standard off the shelf equipment without worrying about having to have equipment operating at specific wavelengths.  The WDM16 provides (16) Small Form Factor Pluggable (SFP) ports that can be loaded with any sort of optical laser of any speed or mode. The WDM16 allocates the individual wavelengths for the CWDM by taking each input in (from… View this post
    Filed in: AV • Live Sound • News • Poll • Product • Interconnect • Networking • Signal

  • Acoustically Incompetent: The Need For Architects To Learn To Listen…
    av
    John Mayberry 04/27/12 09:41 AM,
    It’s been 112 years now, and you’d think it’s been long enough. Yet some of the brightest guys in America keep making the same dumb mistakes over and over again. And ignoring the issue hasn’t made it go away either - it just keeps popping up like Baby Boomers and their anticipated Social Security payments… Still, you’d think someone given the responsibility of designing our great facilities would want people to be able to converse and enjoy listening to music… View this post
    Filed in: AV • Feature • Poll • AV • Audio • Measurement • Signal