Products/Services for Infrasonic Sound

  • Active Noise Control Products-Image
    Active Noise Control Products - (61 companies)
    ...products is an inverse wave. In other words, the troughs of the unwanted sound match the peaks of the anti-sound. The result it that, when the two sounds meet, the peaks and troughs in the sound and the anti-sound cancel each other out, causing... Learn More
  • Acoustic Horns-Image
    Acoustic Horns - (20 companies)
    ...such as long soot blowers, wall blowers, and water cannons. Acoustic horns are relatively inexpensive to operate, but must be used frequently in order to prevent the buildup of undesirable particles. Most products achieve sound pressures... Learn More
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    Sound Cards - (52 companies)
    Sound Cards Information. Sound cards are computer expansion cards that enable audio inputs and outputs. They connect to the computer via the internal bus or an external connection. Sound cards provide an audio input, an audio output, or both. Some... Learn More
  • Sound Level Meters and Noise Dosimeters-Image
    Sound Level Meters and Noise Dosimeters - (232 companies)
    A-weighted sound exposure level measurement is used for short or one-time sounds as the equivalent 1-second level. Equivalent continuous SPL is the noise level of a continuous steady sound whose time-averaged power equals that of the fluctuating... Search by Specification | Learn More
  • Signal Generators-Image
    Signal Generators - (380 companies)
    Signal generators and waveform generators are used to test and align all types of transmitters and receivers, to measure frequency and to generate a signal, waveform or noise source. Signal generators can use AC energy, audio frequency (AF) and radio frequency (RF) to function. Search by Specification | Learn More
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    Security Systems - (496 companies)
    Surveillance systems are used to monitor commercial properties and industrial facilities for the presence of trespassers and the behavior of authorized visitors. Learn More
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    Acoustical Design Services - (116 companies)
    Acoustical design services design rooms, buildings, theaters, churches, courthouses and schools, paying special attention to the reflection of sound waves. Acoustical Design Services Information. Acoustical design services design rooms, buildings... Learn More
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    Soundproofing and Acoustic Materials - (428 companies)
    Soundproofing and Acoustic Materials Information. Sound proofing and acoustic materials are used to attenuate, deaden, or control sound and noise levels from machinery and other sources for environmental amelioration and regulatory compliance. Sound... Search by Specification | Learn More
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    Measurement Microphones - (60 companies)
    Measurement microphones are most commonly condenser microphones, which convert sound pressure to an output that is then converted into a reading such as sound pressure level (SPL). Measurement microphones are most commonly condenser microphones... Search by Specification | Learn More
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    Speakers - (737 companies)
    Speakers produce and transmit sounds carried by electrical or radio signals. This product category is primarily for industrial and OEM speakers rather than those for home use. How to Select Speakers. Image Credit: Digi-Key Corporation. Speakers use... Search by Specification | Learn More

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  • Hear Where We Are
    Tigers use infrasonics as a hunting strategy, paralyzing their prey in terror before striking.42 Alligators use infrasonic sound in courtship and territorial signaling with bellows so loud that it sets the water surface around them “dancing.”43 They may also use …
  • Monitoring and recognition of debris flow infrasonic signals
    Therefore, long-distance passive monitoring of infrasonic sound sources is possible (Garcés et al. 1999; Mutschlecner and Whitaker 2005; Evers 2008) for analyzing the relationship of infrasound to some disastrous events so as to improve people’s disaster prevention abilities.
  • Low-frequency acoustic vibrations in metallurgical shops
    In view of the low frequency and, thus, long wavelength, damping of infrasonic sound as a result of the viscosity and heat conduction of the medium is very slight, and diffraction phenomena are quite pronounced.
    The second indicator came from abnormal signals of infra- sonic sound waves.
    It is mentioned by many authors and easily verified in a laboratory with suitable equipment that the loudness of low-frequency and infrasonic sound grows considerably faster above threshold than sound at higher frequencies.
  • The simultaneous measurement of infrasonic acoustic particle velocity and acoustic pressure in the ocean by freely drifting Swallow floats
    Difficulties in measuring the underwater infrasonic sound field have long been recognized [5].
  • Springer Handbook of Acoustics
    The range of frequency is also very large, from low- frequency ( infrasonic ) sounds between 10–20 Hz used by blue and finback whales to high-frequency echolo- cation signals that extend to 130–140 kHz or perhaps higher (see earlier mention of 180 kHz).
    (d) Sound waves and propagated vibrations An increasing number of authors favour the idea that fishes would be sensitive to propagated sonic or infrasonic sound waves originating from the usual fin and body movements-or .
  • Renewable Energy
    Construction 343; Normal operation 344 (Audible sound 344, Infrasonic sounds 344, Disco effect 345, Shadow impact 345, Ice throw 345, Natural scenery 346, Preservation of bird-life 346, Further effects on fauna 347, Space consumption 347, Offshore wind power utilisation 347, Acceptance …
  • Bioacoustics, animal
    This inversion layer forms an acoustic duct to trap sounds and allows for good propagation of infrasonic sounds over tens of kilometers, making it possible for elephants in a family group to coordinate their movements over large distances.