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All Measurement Posts

  • Friday, December 02, 2016
    image
    Pat Brown 12/02/16 11:12 AM,
      It’s all about inputs and outputs (I/O). How do I get an audio signal from one to the other? The ongoing evolution of professional audio has produced a number of viable digital interfaces to complement legacy analog I/O practices. The choices may seem confusing at first, but when you break them down the strengths and weakness of each become apparent. In this overview, I will start with analog since it is familiar to most readers and serves as a… View this post
    Filed in: AVFeatureStudy HallTrainingAnalogAVDigitalEducationEngineerEthernetInstallationInterconnectMeasurementProcessorSignalSystemTechnician

  • Wednesday, November 30, 2016
    acoustics
    Ken DeLoria 11/30/16 08:47 AM,
    Very often the topic of “room tuning” comes up in the practice of pro audio, but what we’re really talking about is “system optimization.” And over the course of many years, we’ve used many tools that seemed to—or actually did—contribute to desirable results. But system optimization is not just about turning knobs (virtual or otherwise) until things sound good. Sure, you can do that, and maybe that’s all you have time for under certain circumstances, but it’s not likely to… View this post
    Filed in: AVFeatureBlogStudy HallAVLoudspeakerMeasurementProcessorSignalSound Reinforcement

  • Tuesday, November 29, 2016
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    Merlijn van Veen 11/29/16 12:49 PM,
    Many believe that condenser microphones are more sensitive than dynamic microphones (moving coil) and therefore pick up “everything,” e.g., stage wash and noise. Sensitivity, however, is nothing but a constant conversion rate from pressure to voltage and more important, it is distance independent. Contrary to popular belief, it’s not the reason for picking up “everything.” Most condenser mics are indeed more sensitive. A Neumann KMS 105 condenser with a sensitivity spec of 4.5 millivolts at 1 Pascal (4.5 mV/Pa) is… View this post
    Filed in: Live SoundFeatureVideoStudy HallMeasurementMicrophoneSignalSound Reinforcement

  • image
    PSW Staff 11/29/16 09:59 AM,
    Linea Research has announced the introduction of their installation focused C Series range of networked DSP Amplifiers. The new C Series builds on the performance of the M Series amplifiers and delivers it in an installation targeted, contractor friendly package. Comprising three 4-channel and three 8-channel models C Series amplifiers all offer full featured DSP control and an optional Dante interface in a compact 2u chassis with a tamperproof front panel. 44C variants comprise the high power 44C20 with 4x5000W… View this post
    Filed in: AVNewsProductAmplifierAVDigitalInstallationMeasurementNetworking

  • Tuesday, November 22, 2016
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    Hadi Sumoro & Xian Yu 11/22/16 12:53 PM,
    This article is provided by HX Audio Lab   In the current digital world, audio analyzers with FFT or TDS functions are easily able to show the magnitude and phase response of a loudspeaker. These software analyzers are not expensive and are widely used in live sound, installation and loudspeaker development. Several popular software analyzers are ARTA, Smaart, Systune and EASERA. And there are many others. Phase response is often questioned. Many practitioners use the software functions such as: delay… View this post
    Filed in: AVFeatureStudy HallEducationEngineerLoudspeakerMeasurementSound Reinforcement

  • Monday, November 21, 2016
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    PSW Staff 11/21/16 02:32 PM,
    Rational Acoustics announces the release of the first major version update for the Smaart v8 measurement platform – Smaart v8.1. This release includes many significant feature additions, interface modifications and bug fixes. This free update is recommended for all Smaart v8 users. The primary feature additions include a re-work of data handling, the addition of a multi-spectrum plot view, a built-in program updater, automatic broadband meter configuration based on selected inputs, password protection for the API and the ability to… View this post
    Filed in: AVNewsProductAVDigitalMeasurementSoftwareSound Reinforcement

  • Thursday, November 17, 2016
    synaudcon
    Pat Brown 11/17/16 08:22 AM,
      Adequate signal-to-noise ratio is one of the characteristics of a professionally designed sound reinforcement system. The terms “dynamic range” and “signal-to-noise ratio” are often used interchangeably, but a closer look reveals that they are not exactly the same thing. The dynamic range of a sound system is the difference in level between the highest signal peak that can be reproduced by the system (or device in the system) and the amplitude of the highest spectral component of the noise… View this post
    Filed in: AVFeatureBlogStudy HallAVLoudspeakerMeasurementMicrophoneSignalSound ReinforcementSystem

  • Thursday, November 10, 2016
    spl
    Peter Janis 11/10/16 01:36 PM,
    Editor’s note: This one goes back a few years, but the question remains relevant. I go to a lot of concerts. Most of the time, I arrive at sound check to spend some time talking to the techs and engineers about new gear or problems that need fixing. This is also a source of new product development. Then, if time permits, we usually try to go out for a quick dinner before heading back to the venue for the show.… View this post
    Filed in: Live SoundFeatureBlogStudy HallConcertEngineerLoudspeakerMeasurementMicrophonePowerSound Reinforcement

  • Wednesday, November 09, 2016
    compression
    Bruce A. Miller 11/09/16 07:49 AM,
    This article is provided by BAMaudioschool.com.   The compressor is a wonderful tool when used properly, however, often the basics of compression are misunderstood, leaving audio that would have been better left untouched. A compressor is a threshold effect that will squeeze dynamic range. If a sound has dynamics (increases and decreases in volume), a compressor will push them together.  This type of effect is called compression and is not to be confused with computer files compression (making files smaller)… View this post
    Filed in: RecordingFeatureBlogStudy HallEducationMeasurementProcessorSignalStudio

  • Wednesday, October 26, 2016
    recording
    Nigel Redmon 10/26/16 11:59 AM,
    This article is provided by EarLevel Engineering.   Most people who’ve looked at digital audio before know about the Nyquist theorem. If you sample an analog signal at a rate of at least twice its highest frequency component, you can convert it back to analog, passing through a low-pass filter, and get back the same thing you put in. Exactly. Perfectly. The Real World In the real world, though, many people argue that analog “sounds better.” How can this be,… View this post
    Filed in: RecordingFeatureStudy HallAnalogDigitalDigital Audio WorkstationsEducationEngineerMeasurementProcessorSignalSoftwareStudio



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