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Articles Tagged Pat Brown

  • Tuesday, July 21, 2015
    amplifiers
    Pat Brown 07/21/15 12:21 PM,
      Intuition is one of the most valuable tools of the sound system designer. But sometimes intuition can lead us astray. Humans tend to think in terms of linear relationships rather than proportional relationships. But most significant changes in an audio system are related to the proportional change rather than linear change. For example, a 2-to-l power ratio produces a 3 dB increase in level, regardless of the initial power. A 1 watt to 2 watt increase produces the same… View this story
    Filed in: AVFeatureStudy HallAVPowerProcessorSignalSound ReinforcementSystem

  • Thursday, June 25, 2015
    image
    PSW Staff 06/25/15 11:13 AM,
    Harman’s Crown Audio announces it has adopted the Common Amplifier Format (CAF) for DriveCore Install (DCi) Series Amplifiers. Developed by SynAudCon, the CAF is a report for presenting specifications and measured performance metrics of audio power amplifiers. Effective July 2015, Crown DCi Series amplifier specifications will be available in the CAF. CAF was designed to provide amplifier performance metrics in a concise and well-defined format and in a manner that facilitates direct comparisons between various manufacturers and models. At the… View this story
    Filed in: AVNewsAmplifierAVBusinessManufacturerMeasurementSound Reinforcement

  • Tuesday, June 23, 2015
    image
    Pat Brown 06/23/15 11:26 AM,
      A letter to a church building committee might read: Thank you again for the opportunity to provide you with a proposal for the sound system for your house of worship. While we appreciate your interest in “good stewardship” in the funding of this project, and understand your request for “church pricing” for the work, the following points should be kept in mind when determining the best value for the dollars spent. #1 - Dynamic Range Church sanctuaries are usually… View this story
    Filed in: Church SoundFeatureStudy HallAVBusinessInstallationInterconnectSound ReinforcementSystemTechnician

  • Monday, June 08, 2015
    power amplifiers
    Pat Brown 06/08/15 04:11 PM,
      This article is partly technical, and partly philosophical. It’s about power, and has to do with how consumers use power ratings to buy products. It is not necessarily limited to audio, even though that is where it ends up. There are two primary uses for power ratings: 1) To describe the rate of work performed by (or energy consumed by) a product, and 2) Because of the previous item, to determine whether or not a product can perform a… View this story
    Filed in: AVFeatureBlogStudy HallAmplifierAVMeasurementPowerSignal

  • Wednesday, June 03, 2015
    installed sound
    Pat Brown 06/03/15 07:02 AM,
      Why a “70-volt” system? A good question, and one that causes a lot of confusion among audio practitioners. Some common misconceptions about 70-volt (actually 70.7-volt) distribution systems: • There is 70.7 volts on the line at all times. • The 70.7 volts is a “carrier” that the audio is riding on. • A voltmeter across the line should measure 70.7 volts during the operation of the sound system. And there are many more. With that in mind, let’s take… View this story
    Filed in: AVFeaturePollStudy HallProductionAudioAVBusinessInstallationInterconnectNetworkingSignalSound ReinforcementSystem

  • Thursday, May 14, 2015
    image
    Pat Brown 05/14/15 11:42 AM,
      Could anything be more confusing than a “power rating?” The question “How many watts” can have many answers, depending on whether we are talking about amplifiers or loudspeakers. There are also many variables regarding how power is measured and specified. The numerous variables have rendered “face value” power ratings virtually useless. Why is “power” so hard to quantify? One reason is because it is time-dependent and constantly changing - much like the “value” of the stock market. We can… View this story
    Filed in: AVFeaturePollStudy HallAmplifierAVPower

  • Tuesday, May 12, 2015
    synaudcon
    PSW Staff 05/12/15 08:01 AM,
    Registration is open for the upcoming SynAudCon three-day Sound Reinforcement for Technicians (SRT) seminar to be held June 13-15 in conjunction with the InfoComm 2015 show in Orlando this coming June. SRT instructor Pat Brown provides a multimedia presentation, covering the theory behind how systems work, and he also demonstrates how to use instrumentation to look “under the hood” to troubleshoot systems. On day three, system tuning is presented in a technical yet practical way. In addition, the seminar will… View this story
    Filed in: AVLive SoundChurch SoundNewsVideoTrainingAVBusinessEducationEngineerMeasurementProcessorSound ReinforcementTechnician

  • Wednesday, April 29, 2015
    audio power
    Pat Brown 04/29/15 06:03 AM,
      Trying to characterize amplifiers or loudspeakers only by power ratings is akin to trying to completely characterize a person by a photograph. There is always much more than meets the eye. Few subjects generate more confusion in the audio world than power. There is a very good reason for this—it’s a confusing subject, and one that can easily fool our intuition. Most of us are on a power trip—our attitude is that “more is better.” We want bigger amplifiers… View this story
    Filed in: AVFeatureBlogStudy HallAmplifierAVInterconnectLoudspeakerMeasurementPowerSignal

  • Monday, April 13, 2015
    synaudcon
    PSW Staff 04/13/15 11:07 AM,
    More than 80 audio professionals recently converged on Shenzhen, China to attend a three-day SynAudCon Sound System Design seminar. The session was hosted by EZPro International, a distributor for Community Professional, EAW, Mackie, Symetrix and other leading brands, who’s vice president, Tao Zhang, had previously lived in the U.;S., working with Community Professional. During that time he also attended several SynAudCon seminars, experiences that motivated him to bring that high level of audio education to China. “Audio education is difficult… View this story
    Filed in: AVLive SoundNewsTrainingAVBusinessEducationSound ReinforcementTechnician

  • Friday, February 20, 2015
    pat brown
    Pat Brown 02/20/15 03:29 PM,
      As I was preparing for our recent OptEQ workshop in Dallas, a few things crystallized for me, the most fundamental being “what is equalization?” If you ask 10 audio practitioners this simple question, you’re likely to get 10 different answers. In the most literal sense, equalization means to “make equal.” But make what equal? Here are some thoughts for consideration. Literal Definition In the strictest use of the term, equalization applies to the correction of minimum phase aberrations in… View this story
    Filed in: Live SoundFeatureBlogStudy HallAnalogDigitalMeasurementProcessorSignalSound Reinforcement





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