Sign up for ProSoundWeb newsletters
Subscribe today!

Articles Tagged Signal

  • Monday, August 04, 2014
    prosoundweb
    Pat Brown 08/04/14 03:38 PM,
    The eyes and ears do not always agree when it comes to sound quality. (Related article here.) If making acoustic measurements is so difficult, why bother? Why not tune the system based solely on listening? Because there are several very good reasons for including our eyes in the system tuning process! We humans base our concept of reality upon the evidence presented by the five senses to the brain. Our concept of “blue sky” or “green grass” is the result… View this story
    Filed in: AVFeatureBlogStudy HallAVEngineerLoudspeakerMeasurementProcessorSignalSound Reinforcement

  • Friday, March 21, 2014
    cable
    Victor Brown 03/21/14 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

  • Friday, November 01, 2013
    image
    Don Davis 11/01/13 04:58 PM,
    Harry Nyquist is famed for his work on feedback circuit analysis. His Nyquist plot makes visual simultaneously the following viewpoints of the signal:        1. The real part        2. The imaginary part        3. The magnitude        4. The phase angle between the real and        imaginary parts        5. The polarity of the system        6. The causality or non-causality of the        time behavior        7. The presence of resonant systems        8. Non-signal synchronization by       … View this story
    Filed in: AVFeatureBlogStudy HallAVLoudspeakerMeasurementSignalSound ReinforcementSystem

  • Friday, August 30, 2013
    signal path quality
    Jamie Anderson 08/30/13 02:21 PM,
    Editor’s Note: Be sure to see the related article by Jamie entitled “Anatomy Of A System Measurement Rig: Probes, Preamps & Processors”. While it may be counter-intuitive, for 99.52367 percent (roughly speaking) of common applications, the signal quality that our system measurement/analyzer rigs require to produce good measurements is, by pro audio standards, not really that high—particularly when compared to the signal quality demanded for studio recording or even simple listening. What we require from the signal transmission path in… View this story
    Filed in: AVFeatureBlogStudy HallAVMeasurementProcessorSignalSound Reinforcement

  • Thursday, June 06, 2013
    gain structure
    Chuck McGregor 06/06/13 05:01 PM,
    Realistically, audio signals at or near the noise floor of a system are not useful because the signal will not be significantly louder than the noise. Therefore, some minimum usable level must be assumed below which the electronic noise is considered objectionable. A signal to noise ratio of 20 dB is considered minimally acceptable for good intelligibility. For a high quality system 30 dB would be a better figure to use. Using this value, the range from this minimum signal… View this story
    Filed in: AVFeatureBlogStudy HallAmplifierAVConsolesEducationMixerProcessorSound ReinforcementSystem

  • Tuesday, March 13, 2012
    church sound
    Chris Huff 03/13/12 08:50 AM,
    This article is provided by Behind The Mixer.   Growing up in a one hundred year-old home, I learned how to fix plumbing problems.  One lesson was tracing all the pipes in the basement so I could tell which pipes had fresh water and which ones carried sewage.  You might say it was my first exposure to signal flow. Signal flow is the flow of the audio signal from the sources of input to the places of output, from sound-to-loudspeaker,… View this story
    Filed in: Church SoundFeaturePollStudy HallConsolesMixerSignalSound Reinforcement

  • Monday, February 07, 2011
    image
    Andy Wood 02/07/11 05:18 PM,
    Many professional audio manufacturers are now actively producing their own proprietary network connection and control systems, thus enabling users to create and control products within the audio chain. While not a particularly new concept (Crown, for example, started the trend in the 1990s with the IQ computer control system for its amplifiers), recent years have seen a plethora of new solutions. Therefore, to partner this article on interconnection options, here’s a brief overview on the control and distribution solutions currently… View this story
    Filed in: AVFeatureAVDigitalEthernetInterconnectMonitoringNetworkingSoftwareSound Reinforcement

  • Wednesday, January 19, 2011
    image
    Bruce Bartlett 01/19/11 02:30 PM, 0 Comments
    This article is provided by Bartlett Microphones.   You patch in a piece of audio equipment, and there it is: HUM! This annoying sound is a common occurrence in sound systems. Hum is an unwanted 60 Hz tone—50 Hz in Europe—maybe with harmonics. If the harmonics are especially strong, the hum becomes an edgy buzz. Your sound system also might be plagued by RFI (Radio Frequency Interference). It’s heard as buzzing, clicks, radio programs, or “hash” in the audio signal.… View this story
    Filed in: RecordingFeaturePollAnalogDigitalInstallationInterconnectMixerPowerSignalStudioSystemAudio

  • Thursday, January 13, 2011
    image
    PSW Staff 01/13/11 07:15 AM, 0 Comments
    TransAudio Group has introduced the new Drawmer 4x4R Active Signal Splitter at this year’s NAMM show. The 4x4R offers four inputs, each switchable between a mic and line. Each of four input sections offers a six LED meter, 48v phantom switch, 66 dB of mic gain and a “listen” function to monitor any of the four input sections through the front panel headphone amp. In addition, each input section can be linked to the adjacent input section offering four different… View this story
    Filed in: Live SoundNewsPollProductAnalogInterconnectMixerSignalStageSystemAudio

  • Wednesday, May 19, 2010
    image
    PSW Staff 05/19/10 06:45 AM, 0 Comments
    HHB Communications has announced the appointment of Jonathan Darby as Product Support Specialist. Like many others in the HHB team, the 36 year-old broadcast and media professional brings with a great deal of real-world experience. In this case, much was gained at post-production facilities in London, Dublin and New York where Darby honed his specialist skills in production, Pro Tools HD, Avid, Final Cut Pro, video and audio encoding and digital hardware. Jonathan is arriving at HHB at an exciting… View this story
    Filed in: RecordingNewsPollDigitalEngineerInstallationSignalStudioSystemTechnicianAudio