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All Measurement Posts

  • Friday, October 12, 2012
    auralex
    PSW Staff 10/12/12 06:50 AM,
    Auralex Acoustics has introduced the new ProFusor II fabric wrapped sound diffusor, designed to address flutter echo without removing acoustic energy in the room or greatly changing the frequency content of the sound. Implementing ProFusor II diffusors can help can make a small space seem large and a large space seem even larger while also allow users to enhance the accuracy of critical listening environments and create a larger “sweet spot.” Ideal for use in residential theaters, listening rooms, concert… View this post
    Filed in: AVLive SoundChurch SoundNewsProductAVMeasurementSignalSound Reinforcement

  • Wednesday, October 10, 2012
    alcons audio
    PSW Staff 10/10/12 04:14 PM,
    Recognized nationally as a premier radio music program and broadcast on over 300 stations in North America, eTown has recently completed the renovation of its own 17,000-square-foot specialty venue called eTown Hall, located in Boulder, CO. The weekly radio broadcast heard from coast to coast on NPR, public and commercial stations is taped in front of a live audience and features performances and interviews with top musical artists. The format has attracted former presidents and icons including Jane Goodall, Jimmy… View this post
    Filed in: AVFeatureAmplifierAVInstallationLine ArrayLoudspeakerMeasurementSound Reinforcement

  • image
    Jamie Anderson 10/10/12 03:03 PM,
    Feed The Brain. The primary job of a measurement rig is to acquire electrical and acoustical signals and feed them to the processor so that it can analyze, compare, slice, dice, fold, spindle and mutilate those signals and produce multi-colored charts, graphs and the all-important squiggly lines. “But my software can produce squiggly lines all by itself without all those bothersome wires, preamps and microphones. Isn’t that enough?” Maybe. It depends on whether you are getting paid to pose or… View this post
    Filed in: AVFeatureStudy HallAVDigitalMeasurementMicrophoneSignalSoftwareSound ReinforcementSystem

  • Monday, October 08, 2012
    tech talk
    Charlie Hughes 10/08/12 02:37 PM,
    To determine the input impedance of a device, both the voltage across the device and the current flowing into the device must be known. The impedance is simply the voltage across the device E, divided by the current flowing into it, I. This is given by the following equation: It should be understood that since the voltage, E, and the current, I, are complex quantities the impedance, Z, is also complex. That is to say impedance has a magnitude and… View this post
    Filed in: AVFeatureStudy HallAVLoudspeakerMeasurementSignalSoftwareSound ReinforcementSystem

  • Thursday, September 27, 2012
    auralex
    PSW Staff 09/27/12 05:11 PM,
    Auralex Acoustics has introduced new SheetBlok-AF Sound Isolation Barrier material, designed for system integrators seeking sound isolation solutions for both new construction and retrofit situations in mind. SheetBlok-AF is a thin, dense isolator with a Class A fire-rated PVC laminate on its surface for a finished aesthetic. Intended as a solution for improved sound isolation between adjacent spaces, SheetBlok-AF can be implemented anywhere an increase in sound isolation is desired. SheetBlok-AF is at least 6 dB more effective than solid… View this post
    Filed in: AVLive SoundChurch SoundNewsProductAVInstallationMeasurementSignal

  • alcons audio
    PSW Staff 09/27/12 04:14 PM,
    Alcons Audio has announced the release of high-resolution measurement and simulation data for L-series pro-ribbon line-arrays and Q-series pro-ribbon column arrays. The data is supplied in GLL (Generic Loudspeaker Library) format for use with the EASE 4.3 acoustic prediction program and the newly released ARC2 (Alcons Ribbon Calculator) array set-up tool, which is based on the EASE Focus 2 program. By using GLL in EASE, the performance of an Alcons sound system in a suggested acoustic environment can now be… View this post
    Filed in: AVLive SoundNewsProductLine ArrayLoudspeakerMeasurementSoftware

  • systune
    PSW Staff 09/27/12 12:46 PM,
    Patents in the U.S. and Germany have been granted to AFMG for Real Time Deconvolution technology in SysTune measurement software. Further patents are pending. Real Time Deconvolution algorithms are the significant factor in SysTune’s high-level performance at impulse response processing, delivering full-length impulse responses and other measurement data derived from them in real time. “An impulse response,” explains Stefan Feistel, managing director of AFMG, “contains all the information that can be derived from the measurement of a linear, time-invariant system, such as loudspeaker systems,… View this post
    Filed in: AVLive SoundNewsProductAVMeasurementSignalSoftware

  • loudspeakers, dsp
    Charlie Hughes 09/27/12 07:31 AM,
    While sound system operators have come to enjoy the considerable benefits of digital signal processing, it’s important to understand how these devices truly interact with loudspeakers. There’s a lot of cause and effect that sometimes gets overlooked, resulting in less than optimum performance, and leaving the operator scratching his head as to what’s going wrong. One particularly important aspect that is often overlooked is using a DSP to drive loudspeakers with a manufacturer’s prescribed settings (or other target drive function).… View this post
    Filed in: AVFeatureBlogStudy HallLoudspeakerMeasurementProcessorSound Reinforcement

  • Monday, September 24, 2012
    image
    PSW Staff 09/24/12 01:25 PM,
    St. Louis–based freelance sound engineer Doug Fowler has developed a fast, efficient method for setting up and tuning PA systems. Fowler relies on Line 6 XD-V digital wireless systems, Josephson C550H precision condenser microphones and AFMG SysTune 1.2 real-time measurement software to equalize and align all system elements immediately after the sound system is hung. “Measurement microphones are designed for mostly flat, full-range response,” notes Fowler. “The Line 6 system is digital, has no companding and measures well electrically so… View this post
    Filed in: Live SoundNewsPollConcertMeasurementSound ReinforcementAudio

  • Tuesday, September 18, 2012
    image
    Dave Rat 09/18/12 09:16 AM,
    I’m asked a lot of questions about sound. Many of them focus on unraveling and understanding some particular function, feature or concept, while others are directed toward distilling my opinion on methods or industry trends. A while ago. I was asked some questions that led me to some in-depth pondering. The questions: Why are line arrays so popular? Are they a fad or here to stay? And what will be the “next big thing”? The fact is that line array-type… View this post
    Filed in: Live SoundFeaturePollConcertLine ArrayLoudspeakerMeasurementSound ReinforcementSubwoofer