Acoustic Measurement-
Wednesday, May 08, 2013Cable Anatomy Part 3: Everything You Wanted To Know About Instrument Cable
PSW Staff 05/08/13 05:41 PM,See Part 1, Microphone Cable here and Part 2, Loudspeaker Cable here. Are instrument cables used for high-impedance or low-impedance lines? Generally, the source impedance is the determining factor in cable selection. Instrument cables are used for a wide range… View this post
Filed in: AV • Feature • Blog • Study Hall • AV • Interconnect • Signal -
Wednesday, April 10, 2013Interfacing AES3 & S/PDIF Devices, And Addressing Myriad Variables
Dennis A. Bohn 04/10/13 12:22 PM,This article is provided by Rane Corporation. Mainstream digital audio dates from the introduction of the compact disc in the early 1980s. Today two serial interfaces coexist: AES3 (aka AES/EBU) for professional use and S/PDIF for consumer products. Simple… View this post
Filed in: AV • Feature • Blog • Study Hall • AV • Digital • Interconnect • Networking • Signal -
Monday, March 04, 2013Getting The Right Flow—Logical Approaches To The Live Show
Tim Weaver 03/04/13 07:31 PM,The corporate world calls it “workflow,” and in audio, we generally call it “prepping the show” as well as “load in-load out” and “set up-strike.” But none of it is quite adequate in describing effective practices in our overall approach… View this post
Filed in: Live Sound • Feature • Blog • Study Hall • Business • Engineer • Interconnect • Loudspeaker • Sound Reinforcement • Technician -
Tuesday, February 19, 2013Fine-Tune Cabling For An Efficient Live Sound System Setup & Strike Every Day
Dan Laveglia 02/19/13 06:10 PM,The idea of setting up a complicated audio system every day, in constantly changing venues and in the time limitations of a few hours is daunting, to say the least. Yet it’s the inevitable reality of touring sound. Thousands of… View this post
Filed in: Live Sound • Feature • Blog • Study Hall • Training • Concert • Interconnect • Sound Reinforcement • Stage -
Friday, February 15, 2013Cable Anatomy Part 1: Everything You Wanted To Know About Microphone Cable
PSW Staff 02/15/13 01:11 PM,What is impedance? Impedance is the AC (alternating current) version of the DC (direct current) term resistance, which is the opposition to electron current flow in a circuit and is expressed in ohms. Impedance (often abbreviated as “Z”) includes capactive… View this post
Filed in: AV • Feature • Blog • Study Hall • Production • Audio • AV • Interconnect • Microphone • Signal -
Thursday, January 10, 2013Church Sound: Unbalanced Versus Balanced Signal Lines
Al Keltz 01/10/13 02:01 PM,Unbalanced signal lines are characterized by the fact that the cable and connectors use only two conductors, a center conductor surrounded by a shield. Examples of unbalanced wiring are found in tip-sleeve 1/4-inch guitar cords or the cables used with… View this post
Filed in: Church Sound • Feature • Blog • Study Hall • Production • Audio • Analog • Digital • Interconnect • Power • Signal • Sound Reinforcement • System -
Thursday, January 03, 2013Isolation & Distribution: Multiple Feeds From A Single Source
Pat Brown 01/03/13 07:40 PM,A common task in Audio Land is the need to feed a number of inputs from a single signal source. This may include driving a rack of amplifiers, providing feeds to the press, or distributing a signal around a building… View this post
Filed in: AV • Feature • Blog • Study Hall • AV • Interconnect • Power • Signal • System -
Thursday, September 06, 2012The Truth About Balanced Audio Interfaces In Systems
Bill Whitlock 09/06/12 05:56 PM,An analog audio interface may be unbalanced or balanced, depending only on the impedances (to ground) of its two signal conductors. In balanced interfaces, both conductors have equal (and non-zero) impedances. A balanced interface also requires that driver, line, and… View this post
Filed in: AV • Feature • Poll • Study Hall • AV • Interconnect • Signal • System • Audio -
Monday, July 30, 2012Church Sound:Testing Cables Regularly Is A Big Key To Solid System Performance
Gary Zandstra 07/30/12 12:12 PM,Operating the sound system from the mix position during a recent Sunday worship service, it all began when the first note from our grand piano was distorted. Hmm… We’d checked the piano channel and sound prior to the service, and… View this post
Filed in: Church Sound • Feature • Study Hall • Education • Installation • Interconnect • Sound Reinforcement • Stage • System • Technician • Audio -
Monday, June 11, 2012Plugging In Your Church Platform - A Discussion Of Cabling & Connectivity
Rob Stam 06/11/12 12:31 PM,In my many encounters with church building committees over the years, there’s often an overwhelming theme: build a room that can be utilized for a multitude of functions including worship, theatrical productions, concerts, special events, dinners, receptions… the list goes… View this post
Filed in: Church Sound • Feature • Poll • Study Hall • Installation • Interconnect • Sound Reinforcement • Stage -
Friday, June 08, 2012An Over/Under Proposition: The “Magic” Of Proper Cable Wraps
Paul LaPlaca 06/08/12 07:44 AM,Very early in my career, I worked in the field as a sound recordist for WNED, a television station in Buffalo, New York. My first day on the job, we finished doing a video shoot, and being the low person… View this post
Filed in: Church Sound • Feature • Poll • Study Hall • Interconnect • Signal • Stage -
Tuesday, May 22, 2012Wiring The World: Miles And Miles Of Conduit
Josh Thompson 05/22/12 01:49 PM,Sooner or later, regardless of our chosen path in pro audio, the worst happens: someone asks us to install a system. Even if our preferred gig involves a Prevost and chain motors, folks tend to assume that “sound is sound,”… View this post
Filed in: AV • Feature • Study Hall • AV • Installation • Interconnect • Sound Reinforcement -
Thursday, April 05, 2012Balanced Versus Unbalanced Lines
Al Keltz 04/05/12 02:42 PM,Unbalanced Lines Unbalanced signal lines are characterized by the fact that the cable and connectors use only two conductors, a center conductor surrounded by a shield. Examples of unbalanced wiring are found in tip/sleeve 1/4-in guitar cords or the cables… View this post
Filed in: AV • Feature • Poll • Study Hall • AV • Business • Installation • Interconnect • Signal • Sound Reinforcement • System • Audio -
Wednesday, March 21, 2012Connecting Unbalanced Outputs To Balanced Inputs—And Vice-Versa
Bill Whitlock 03/21/12 06:33 PM,Based on my years of helping customers solve interfacing problems of all sorts, connecting unbalanced outputs to balanced inputs, and vice-versa, certainly ranks among the most common and confusing of tasks for system integrators. Basically, two issues must be dealt… View this post
Filed in: AV • Feature • Poll • Study Hall • AV • Interconnect • Power • Signal • Audio -
Thursday, February 23, 2012Let There Be Light: How Fiber Optics Actually Works
Buddy Oliver 02/23/12 03:46 PM,An easy way to understand how fiber optics works: visualize peering into a very long tube, the inside of which is coated with a perfectly mirrored surface. One mile away, at the opposite end, a friend shines a bright flashlight… View this post
Filed in: Live Sound • Feature • Poll • Study Hall • AV • Digital • Ethernet • Interconnect • Signal • Sound Reinforcement • Studio • Audio -
Wednesday, June 29, 2011How To Assemble And Terminate Ethernet Cable
Chris Bushick 06/29/11 04:45 PM,As with many types of cable, you can save some money by purchasing Ethernet cable and connectors and assembling/terminating them yourself. Of course, keep in mind that putting together cables of any type requires time, patience and some know-how. Without… View this post
Filed in: AV • Feature • Poll • Study Hall • AV • Ethernet • Interconnect • Networking -
Everything You Wanted To Know About Microphone Splitters
Al Keltz 06/29/11 01:40 PM, 0 CommentsIf church sound system has evolved along a familiar path, what started out as a pretty simple, small group, “sound-on-a-stick” has gradually become more and more sophisticated. Many have replaced that powered mixer with separate components and added a snake… View this post
Filed in: Church Sound • Feature • Poll • Study Hall • Training • Interconnect • Microphone • Sound Reinforcement • Stage • Studio • Audio -
Wednesday, June 08, 2011Increasingly Vital Links: Ethernet Facts & Options
Chris Bushick 06/08/11 10:43 AM,It used to be that the only time to worry about a network came with simulcasting and having to plug into the broadcast truck. Now, however, a mixing console may be hooked deeper into a network than even a laptop… View this post
Filed in: AV • Feature • Poll • Study Hall • AV • Ethernet • Interconnect • Networking • Audio -
Tuesday, May 03, 2011In-DI-spensible: The Essentials Of Direct Injection (DI) Boxes
Al Keltz 05/03/11 07:36 AM, 1 CommentDirect boxes are often referred to as “DI boxes” (DI is short for Direct Injection) boxes. Their primary purpose is to convert unbalanced and/or high-impedance instrument signals into a format suitable for direct connection to a mixing console’s microphone input… View this post
Filed in: Church Sound • Feature • Poll • Product • Study Hall • Installation • Interconnect • Signal • Sound Reinforcement • Stage • System • Technician -
Monday, May 02, 2011A Primer On Ethernet Cabling For Digital Audio
John Murray 05/02/11 04:54 PM, 0 CommentsMore and more these days, audio systems are going digital, not just digital signal processing (DSP), but also for general signal transmission between devices as well. Let’s take a look at the care and feeding of Ethernet cabling, specifically the… View this post
Filed in: AV • Feature • Poll • Study Hall • AV • Ethernet • Installation • Interconnect • Networking
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