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Thursday, May 16, 2013Avoiding Poor Judgment & Getting A Handle On Subjective Audio
James Cadwallader 05/16/13 06:08 PM,I suspected trouble when I accepted responsibility for something I had no control over. There was a 50/50 chance of either being the hero or the whipping boy. I didn’t care for those odds, but I couldn’t change them. It all started when a friend of the family asked me to help make sure that the sound for his wedding didn’t ruin the ceremony. The catch was that I wasn’t handling the sound - his cousin, the part-time DJ, had… View this post
Filed in: Live Sound • Feature • Blog • Engineer • Measurement • Signal • Sound Reinforcement • System • Technician -
Square Waves And DC Content: Deconstructing Complex Waveforms
Charlie Hughes 05/16/13 05:56 PM,I’ve heard it argued by that square waves contain DC. How else could they have the flat top and bottom that make it square? Let’s look at a square wave and see what causes it to have its square shape. A complex waveform can be constructed from, or decomposed into, sine (and cosine) waves of various amplitude and phase relationships. This is the basis of Fourier analysis. A square wave consists of a fundamental sine wave (of the same frequency… View this post
Filed in: AV • Feature • Blog • Study Hall • AV • Measurement • Processor • Signal -
Pro Production: Understanding The Language Of The “Show”
Alan Hamilton 05/16/13 05:44 PM,When first starting out in audio, a newcomer will hear terms that may seem like a whole new language. These terms are very common to hear in arenas, union halls, theatres, and similar venues. While not so common in clubs, even there you can hear some of these terms used by the seasoned veterans of the business. This would be particularly true of clubs that work with regional and national touring acts. You can expect to hear experienced production people… View this post
Filed in: Production • Feature • Blog • Study Hall • Production • Audio • Lighting • Rigging • Staging • Video • Analog • Business • Concert • Education • Interconnect • Loudspeaker • Mixer • Signal • Sound Reinforcement • System -
Tuesday, May 14, 2013Transform Your Mind: Latest Free White Paper On Transformers In Audio Now Available
PSW Staff 05/14/13 03:57 PM,Chapter 2 of PSW’s ongoing free white paper series in now available. (Get it here.) Entitled “Transformers–Insurance Against Show-Stopping Problems,” chapter 2 goes further in providing information a better understanding principles of transformers and how they impact audio components and systems. As with chapter 1, the new paper is authored by Ken DeLoria, senior technical editor of ProSoundWeb and Live Sound International (and founder of Apogee Sound). The white paper series is presented by Lundahl, a world leader in the… View this post
Filed in: AV • Live Sound • Recording • Church Sound • News • Blog • Training • White Paper • AV • Education • Microphone • Processor • Signal • Technician -
Monday, May 13, 2013How Do You Know What Sounds Good?
Karl Winkler 05/13/13 04:41 PM,Most of us feel that we know good sound when we hear it. We also have tools to help us analyze the properties of sound, and we’ve learned to interpret those measurements and equate them with good and bad. But I find it fascinating that sometimes even when things measure “poorly,” we say that it sounds good anyway. Or, conversely, sometimes the measurements look spectacular but “there’s just something wrong.” The challenge is defining what actually constitutes “good” sound, and… View this post
Filed in: Live Sound • Feature • Blog • Concert • Digital • Engineer • Line Array • Mixer • Signal • Sound Reinforcement • System -
The Relationship Between Amplifier Damping Factor, Impedance & Cable
Jerrold Stevens 05/13/13 03:21 PM,Ever have one of your friendly amplifier reps walk in your office to present their new mondo-gazillion-watt beast and point out the damping factor spec of greater than a bazillion? Why, gee-whiz! That’s like 10 times more than the other guy! It must be awesome! Right? Well, as we have seen before, it depends on how you are going to use it. Let’s start with defining damping factor and see what it means to us. Amplifier damping factor is defined… View this post
Filed in: AV • Feature • Blog • Study Hall • Amplifier • AV • Interconnect • Loudspeaker • Measurement • Signal • Subwoofer -
Friday, May 10, 2013In The Studio: The “Simple Math” Myth of Sample Rate Conversion
Jon Tidey 05/10/13 02:25 PM,This article is provided by Audio Geek Zine. I recently saw this on a forum. I’ve seen something like this said many times. I won’t say who said it because he’s a good engineer and my intention is not to poke at him. Here goes: “I’ve been sticking with 88.2, to me the simple math (divide by 2) is a little more reassuring then 96 when down-sampling to 44.1.” ***facepalm*** Another guy (elsewhere) said: “If you’re recording music, you… View this post
Filed in: Recording • Feature • Blog • Digital • Digital Audio Workstations • Signal • Studio -
Riedel Earns Sports Emmy Award For Production Of Red Bull Stratos Project
PSW Staff 05/10/13 01:52 PM,Riedel Communications has been awarded a Sports Emmy Award in the category of “Outstanding New Approaches Sports Event Coverage” for the production of the Red Bull Stratos project. As a contributor to the project, Riedel received the award from the National Academy of Television Arts and Science at the 34th Annual Sports Emmy Awards, held May 7 in New York City. In a first-of-a-kind sports production from the edge of space, the Red Bull Stratos project captured aviation pioneer Felix… View this post
Filed in: AV • Live Sound • Production • News • Production • Audio • Video • AV • Digital • Ethernet • Interconnect • Networking • Signal • Software -
Church Sound: How To Get Audio From An iPad
Chris Huff 05/10/13 01:47 PM,This article is provided by Behind The Mixer. iPads are turning up in the audio booth as a sound source. Much like my article on using different types of smartphones as audio sources, iPads are something you need to consider. Let’s look a how to get the audio out. The iPad uses a common 3.5 mm stereo headphone plug, so connecting via the 3.5 mm plug is the easiest route to go. The back of your mixer/console is filled… View this post
Filed in: Church Sound • Feature • Blog • Study Hall • Consoles • Interconnect • Mixer • Signal -
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 of sources. Many keyboard instruments, mixers, and signal processors have very low (50 to 600 ohm) source impedances. On the other hand, typical electric guitar or bass pickups are very inductive, very high impedance (20,000 ohms and above) sources. Typical… View this post
Filed in: AV • Feature • Blog • Study Hall • AV • Interconnect • Signal
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