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A/V features

  • Monday, April 14, 2014
    loudspeakers
    PSW Staff 04/14 11:04 AM,
    Despite their rather scant appearance, many modern column loudspeakers deliver exceptional full-range performance, and this can be furthered by companion LF boxes and subwoofers. Although they’ve been around for more than a half-century, column loudspeakers are popular because they offer a compromise solution for those who need efficiency in the vocal range combined with even coverage and a very slim, unobtrusive profile. A look into line source coupling behavior and pattern control tells us that loudspeaker cones exhibit coupling behavior… View this story
    Filed in: AVFeatureBlogSlideshowAVDigitalInstallationLine ArrayLoudspeakerSoftwareSound ReinforcementSubwoofer

  • image
    Joan La Roda 04/14 09:14 AM,
    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 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. Given the interest in the subject, and the remarkable improvement it can bring to a system, it seems like a good idea… View this story
    Filed in: AVFeatureBlogStudy HallAVLine ArrayLoudspeakerMeasurementProcessorSignalSound ReinforcementSubwoofer

  • Thursday, April 10, 2014
    image
    Sam Berkow 04/10 02:31 PM,
    If one could listen to only the direct sound of a loudspeaker, the world would be a very different place! Unfortunately, free field listening, where you have no reflections, room modes or ambient noise, is hard to achieve in everyday life, so we listen to loudspeakers in real rooms. The interaction of a loudspeaker system and a room can be very complex to understand, model or measure! One way to measure this interaction is to measure the impulse response of… View this story
    Filed in: AVFeatureBlogStudy HallAVLoudspeakerMeasurementSignalSound Reinforcement

  • Wednesday, April 02, 2014
    integration
    Jeffrey L. Miranda 04/02 12:01 PM,
    This article is provided by Commercial Integrator   Let’s face it: true commercial systems integrators’ reputations have taken a hit by clients’ bad experiences with not-so-true integrators. Having supported customers for a manufacturer, I can attest that there are many customers left unsure of who to trust. Tired and frustrated, they don’t want to trust any integrators. There needs to be a vast change in the way integrators handle customers. How we offer to help them, I believe, provides us… View this story
    Filed in: AVFeatureBlogStudy HallAVBusinessInstallationSound ReinforcementSystemTechnician

  • Tuesday, April 01, 2014
    prosoundweb
    Pat Brown 04/01 01:23 PM,
    For the majority of humans, there is nothing simpler than listening to sound. You simply, well, listen. When it becomes necessary to describe the listening experience analytically, however, a host of complex equations and diagrams are required to describe even the simplest of sonic events. The benefit of mathematical analysis is that it can yield insights that are not apparent through intuition alone. Acoustic signals are easily measured, and the audio components that produce them have characteristics that can be… View this story
    Filed in: AVFeatureBlogStudy HallAVEducationEngineerSound ReinforcementTechnician

  • sensaphonics
    PSW Staff 04/01 12:17 PM,
    Sensaphonics has announced its expansion into the field of custom eye protection with the introduction of the 3D 20/20, the world’s first Active Ambient Optical Protection System. The system is designed to control the harmful rays from concert lighting systems, eliminating the strobing and glare that can cause headaches or even seizures among musicians and audience members alike. “The 3D-20/20 is, quite simply, a game-changing product,” explains Sensaphonics founder and president, Dr. Michael Santucci. “We’ve all been to concerts where… View this story
    Filed in: AVLive SoundFeatureNewsProductAVSound ReinforcementStage

  • lectrosonics
    PSW Staff 04/01 07:28 AM,
    In the great tradition of Heathkit®, Dynaco®, and Eico®, Lectrosonics is introducing user-assembled kits as a cost-saving alternative to its popular (and pre-assembled) SRb Series dual-channel receivers. The kits reduce the cost versus finished products by approximately 50 percent. Along with saving money, users can enjoy the exciting challenge of sorting, correctly identifying, placing and soldering all the tiny parts—over 1,100 in all! The SR Series Digital Hybrid Wireless® diversity receivers offer two independent channels and fit into the standard… View this story
    Filed in: AVLive SoundFeatureNewsProductAVMicrophoneWireless

  • Friday, March 21, 2014
    cable
    Victor Brown 03/21 01:51 PM,
    Cable selection presents two primary challenges: myriad choices and overall quality. I’ve explored these challenges and have defined six factors that can help point you in the right direction. These factors include appearance, durability, flexibility, sonics, conductivity and shielding. Let’s have a look. Appearance Understand the difference between the look of quality—like shiny gold-plated connector housings—and actual quality construction and materials. A primary problem arises when assumptions are made that the materials inside a cable housing are as fancy as… View this story
    Filed in: AVFeatureBlogStudy HallAVInterconnectLoudspeakerSignalSound ReinforcementStudio

  • Monday, March 17, 2014
    lundahl
    PSW Staff 03/17 03:48 PM,
    Chapter 5 of PSW’s ongoing free white paper series in now available. (Get it here.) The new installment, entitled “Understanding Impedance In Audio Transformers,” brings clarity to the issue of impedance, and explains how transformers are of special interest because they are capable of transforming impedances, while also providing galvanic isolation and many additional benefits. The white paper series is presented by Lundahl, a world leader in the design and production of transformers, and is authored by Ken DeLoria, senior… View this story
    Filed in: AVFeatureBlogTrainingWhite PaperAVEducationInterconnectPowerProcessorSignal

  • Thursday, March 13, 2014
    measurement
    Pat Brown 03/13 02:42 PM,
    Many audio field technicians are now in possession of measurement systems that can be used to assist the listening process in equalizing sound reinforcement systems. But, they’re often surprised to find that the measured system response correlates poorly with subjective impression of how the system sounds. In other words, the system can sound good when it looks bad on the analyzer, and it can sound bad when it looks good on the analyzer. As a result, some users have become… View this story
    Filed in: AVFeatureBlogStudy HallAVDigitalLoudspeakerMeasurementMicrophoneSignalSoftwareSound Reinforcement



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