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All Signal Posts

  • Thursday, April 28, 2016
    image
    Nigel Redmon 04/28/16 12:12 PM,
    This article is provided by EarLevel Engineering.   Some terms: The Fast Fourier Transform is an algorithm optimization of the DFT—Discrete Fourier Transform. The “discrete” part just means that it’s an adaptation of the Fourier Transform, a continuous process for the analog world, to make it suitable for the sampled digital world. Most of the discussion here addresses the Fourier Transform and its adaptation to the DFT. When it’s time for you to implement the transform in a program, you’ll… View this post
    Filed in: AVFeatureBlogStudy HallDigitalDigital Audio WorkstationsEducationEngineerMeasurementProcessorSignalSoftware

  • Wednesday, April 27, 2016
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    PSW Staff 04/27/16 01:37 PM,
    Radial Engineering announces the BT-Pro is now shipping. The BT-Pro is a Bluetooth direct box designed to capture the wireless transmission from a Bluetooth enabled device and convert the signal to a balanced line for use in a PA system. According to Radial president Peter Janis: “It seems that today, Bluetooth wireless technology is everywhere. You can connect your phone to your car, your laptop to your house and tablet to your TV. It only makes sense that Bluetooth wireless… View this post
    Filed in: AVNewsProductAVInterconnectSignalWireless

  • Tuesday, April 26, 2016
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    Bruce Bartlett 04/26/16 12:34 PM,
    This article is provided by Bartlett Microphones.   Nothing has more effect on the sound of your recordings than microphone technique. For example, which mic you choose—and where you place it—affect the recorded tone quality. That is, mic technique affects how much bass, midrange, and treble you hear in the monitored sound of a musical instrument. Mic choice and placement also affect how distant the instrument sounds in the recording, and how much background noise you pick up. This guide… View this post
    Filed in: RecordingFeatureProductionAudioMicrophoneSignalStudioSystem

  • dynamic processing
    PSW Staff 04/26/16 05:52 AM,
    Dynamic range can be defined as the distance between the loudest possible level to the lowest possible level. For example, if a processor states that the maximum input level before distortion is +24 dBu and the output noise floor is -92 dBu, then the processor has a total dynamic range of 24 + 92 = 116 dB. However, the average dynamic range of an orchestral performance can range from - 50 dBu to +10 dBu on average. This equates to… View this post
    Filed in: Church SoundFeatureStudy HallProcessorSignalSound Reinforcement

  • Friday, April 22, 2016
    isemic
    Craig Leerman 04/22/16 09:41 AM,
    As an audio technician, my ears have the final say in how a system is tuned, but with the passing of time, they’re not quite as reliable as they used to be. As a result, I’m increasingly relying on measurement systems to help with dialing in the PA. I also utilize SPL apps on my phone and iPad to help monitor volume levels, and that’s worked out well. So when I first saw the iSEMic 725TR measurement microphone from iSEMcon,… View this post
    Filed in: Live SoundFeatureBlogProductAVMeasurementMicrophoneSignalSound Reinforcement

  • Thursday, April 21, 2016
    feedback
    Peter Mapp 04/21/16 05:43 AM,
    Editor’s Note: I ran across the following while reading through some old SynAudCon newsletters. My thanks to Peter for allowing us to share it with you here. As Pat Brown of SynAudCon noted, “These are for real - there are people out there that really believe them. This makes for good job security for all of us!” 1. Sound systems always feed back at 400 Hz. 2. Sound systems only feed back at the frequencies indicated on the graphic equalizer.… View this post
    Filed in: Live SoundFeatureBlogMeasurementProcessorSignal

  • Tuesday, April 19, 2016
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    Dennis A. Bohn 04/19/16 11:47 AM,
    This article is provided by Rane Corporation.  ; While selecting a power amplifier for a specific loudspeaker is often rather easy, selecting a preamp for a specific microphone is not. Terminology is the problem. At one end we find power amplifier and loudspeaker manufacturers speaking the same language, or at least using the same vocabulary. Power amps are rated in watts and ohms, while loudspeakers are rated in ohms with a maximum power handling capability stated in watts. Unfortunately, at… View this post
    Filed in: Live SoundFeatureBlogStudy HallMicrophoneSignalSound ReinforcementSystem

  • image
    Curt Taipale 04/19/16 06:09 AM,
    This article is provided by Church Soundcheck.com.   If you pay attention to sound at all, you love to hear a great echo. Think about standing next to someone at the edge of a large canyon, listening to him shout and waiting to hear the reflection off the other side of the canyon. As we stand beside him, we will first hear the sound of his voice on a path directly to our ears. Moments later, we will hear his… View this post
    Filed in: Church SoundFeatureBlogStudy HallConsolesEngineerMixerProcessorSignalSound Reinforcement

  • Friday, April 15, 2016
    old soundman
    Old Soundman 04/15/16 03:06 PM,
    An individual who corresponds to the description of a fugitive known to viewers of “America’s Most Wanted” and “Cops” known only as “JR” sent in this question, which gives me a chance to pontificate, something that I very much enjoy doing. The beautiful thing is that I can go on about stuff that my questioners are correct about, or just as well when they are off the mark. It’s all fuel for my turbine, my reactor, my photovoltaic converters. What’s… View this post
    Filed in: Live SoundFeatureBlogConcertEngineerInterconnectMonitoringSignalStageSystemTechnician

  • Thursday, April 14, 2016
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    Chris Huff 04/14/16 06:10 AM,
    This article is provided by Behind The Mixer.   If ever there was a thorn in the side of a sound tech, it would be one labeled VOLUME.  A couple of days ago, I talked about balancing the stage volume with house volume.  But that’s not the volume thorn I’m discussing. I’m talking about the right house volume level. My favorite volume story comes from a sound tech working a concert. A person came up to the sound booth and… View this post
    Filed in: Church SoundFeatureBlogStudy HallMeasurementSignalSound Reinforcement



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