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Tuesday, July 31, 2012
Joan La Roda 07/31/12 12:40 PM,This is the first in a three-part series on phase alignment. Additional segments of the series are available here. FFT based field measurement systems have made it possible for us to do phase alignment at fixed installations as well as at live events, where every venue demands a different approach. This is particularly important these days, since mid-high boxes are often flown and subwoofers remain on the ground, meaning that phase differences at the listener location can be very significant.… View this story
Filed in: Live Sound • Feature • Poll • Loudspeaker • Manufacturer • Signal • Sound Reinforcement • System • Audio -
Monday, March 28, 2011
Michael MacDonald 03/28/11 12:15 PM, 3 CommentsWell it’s that time of year! The start of the summer touring season is fast approaching. Yes, it’s the time of year when things really start to get busy. Comments like, “It’s so busy I can’t breathe,” are often heard. Too many balls in the air, and they begin to be dropped. Calls don’t get returned, and hair gets pulled out. Time management is the key to getting more done in any business. Recently, at a conference of dealers from… View this story
Filed in: Live Sound • Feature • Poll • Study Hall • Business • Digital • Education • Installation • Loudspeaker • Mixer • Signal • Sound Reinforcement • System • Audio -
Thursday, March 17, 2011
Michael MacDonald 03/17/11 10:17 AM, 1 CommentProfessional audio equipment keeps getting better, as clearly evidenced by enhanced loudspeaker systems, high-resolution digital mixing consoles, ever-more-robust low distortion power amplifiers and digital signal processing “wonder boxes.” Further, with the advent of new interconnect options, sound systems are beginning to gain immunity from ground loops that can serve up dreaded hum and buzz. Suffice to say that the improved list goes on and on, with a lot more new equipment coming out soon! At the same time, the public… View this story
Filed in: Live Sound • Feature • Opinion • Poll • Study Hall • Business • Digital • Education • Installation • Line Array • Loudspeaker • Mixer • Signal • Sound Reinforcement • System • Technician • Audio -
Thursday, December 23, 2010
Mike Sokol 12/23/10 08:30 AM, 0 CommentsProvided by HOW To Church Sound Workshops. Few things can affect the quality of a sound as speakers being out of polarity. You can lose bass response, cancel your vocals and cause general phase mayhem in your sound system. There are may ways to determine polarity, however here’s a cheap and easy solution to test for proper wiring inside your speaker cabinets before you install them up on the wall and without running any audio signal through them. See… View this story
Filed in: Church Sound • Feature • Poll • Education • Installation • Interconnect • Signal • Sound Reinforcement • System • Audio -
Thursday, December 16, 2010
Joan La Roda 12/16/10 02:41 PM, 0 CommentsThis is the third in a multi-part series. Additional segments are available here. Previously we examined the basics of cardioid subwoofer systems. These examples continue that series. Example 2. “Measurements on a real system: two facing forward and one backward” In this example our cardioid configuration uses three stacked DAS LX218A subwoofers. The top and bottom ones are facing forward while the centre one is firing backward. The DAS LX218A subwoofer is a self-powered system incorporating signal processing (crossover and… View this story
Filed in: Live Sound • Feature • Poll • Line Array • Loudspeaker • Software • Sound Reinforcement • Subwoofer • System • Audio -
Monday, December 06, 2010Joan La Roda 12/06/10 03:55 PM, 0 CommentsThis is the second in a multi-part series. Additional segments are available here. Previously we examined the basics of cardioid subwoofer systems. This example continues that series. Example 1. “Scaled down measurements: one cabinet in front and one cabinet behind” Before trying to do these adjustments for the first time in a real- life situation, where one may not always have enough time and where conditions are far from ideal, scaled down measurements can be handy to get some practice… View this story
Filed in: Live Sound • Feature • Poll • Loudspeaker • Signal • Sound Reinforcement • Subwoofer • System • Audio -
Friday, October 01, 2010Joan La Roda 10/01/10 12:30 PM, 0 CommentsIn the previous two segments of this series we discussed phase and polarity, what causes phase to vary, what is meant by phase alignment, coherence curves, and we took a look at the first of three illustrative examples. If you haven’t yet read the first two articles in the series, which are available here, I’d urge you to do so. If you’re up to speed and ready to continue, let’s take a look at the rest of our examples Example… View this story
Filed in: Live Sound • Feature • Poll • Line Array • Loudspeaker • Mixer • Sound Reinforcement • System • Audio -
Monday, September 27, 2010
Joan La Roda 09/27/10 02:15 PM, 0 CommentsIn the first part of our series, we took a look at what exactly phase and polarity are, what causes phase to vary, and what is meant by phase alignment. Coherence Curve The coherence curve that Fast Fourier Transform based measurement systems provides indicates the probability that the measurement is reliable. It’s very common to find a coherence curve (ranging from 0 to 1, or from 0% to 100%, depending on the measurement system) with low values in part of… View this story
Filed in: Live Sound • Feature • Poll • Loudspeaker • Mixer • Signal • Sound Reinforcement • System • Audio -
Thursday, August 12, 2010
Kyle P. Snyder 08/12/10 03:20 PM, 1 CommentYamaha Commercial Audio Systems held its first official Audioversity at Soundcheck in Nashville earlier this week (August 11-12), drawing several hundred participants. “Nashville was our first official Audioversity,” said Larry Italia, VP/General Manager, Yamaha Commercial Audio Systems, “and the YCAS staff worked very hard in its planning and execution making it the success it was.” The event was catered towards audio professionals and those interested in gaining in-depth knowledge and hands-on experience with Yamaha Commercial Audio and NEXO products. Audioversity… View this story
Filed in: Live Sound • News • Slideshow • Amplifier • Digital • Education • Line Array • Loudspeaker • Manufacturer • Mixer • Power • Signal • Sound Reinforcement • System • Audio -
Friday, July 02, 2010
PSW Staff 07/02/10 07:34 AM, 0 CommentsSummer concert season kicked off with a powerful punch as more than 25,000 metal fans converged on Indianola’s National Balloon Classic Field for this year’s Lazerfest. The annual festival, created by local radio station KAZR in nearby Des Moines, has grown rapidly since its resurgence in 2007, and this year marked the first time the show has expanded to two stages to accommodate an expanded roster of hardcore metal musicians. Grand Island, NE-based Sure Sound and Lighting provided a massive… View this story
Filed in: Live Sound • News • Poll • Business • Concert • Line Array • Loudspeaker • Manufacturer • Mixer • Sound Reinforcement • System • Audio
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