Acoustic Devices
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Transformer/Coil Manufacturing | Engineering & Design Services
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Acoustic DevicesHome | New Products | Gift Ideas | Plans | Policies | Contact Us Transformer/Coil Manufacturing | Engineering & Design Services |
To order: click the ITEM NUMBER
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These devices are intended to allow the user to hear sounds at a distance that would be inaudible to the unaided ear. The parabolic mikes are excellent for nature listening, especially for birds. Law enforcement uses these devices for surveillance.
Parabolic mics use a large area to gather sound energy and then focus it to a sensitive mike element and amplifier to further enhance performance. Parabolic mics gather roughly 3 times more sound than shotgun mics, but they also cover a wider area and therefore capture more background noise and aren't as good at isolating sounds from a noisy background. Shotgun mics are more directional and are often used for sound gathering in action movies. They also are used for surveillance by law enforcement. Shotgun mics use a sensitive amplifier with a series of resonant tubes or a single tube with baffles. |
Hear The Incredible World Of High Frequency Sounds - Beyond That Detectable By The Human Ear! Hears Ultrasounds and Rejects Normal Sounds
Pinpoint Those Annoying Sounds Coming From Animal Repellers, and Those Who Might be Purposely Using Ultrasounds Against You for Harassment
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Battery operated directional device detects sounds beyond the range of human hearing, with narrow band tuning from about 23 to 27 kHz (-3db points), allowing you to hear and pinpoint mechanical, electrical and biological sounds such as leaking gases, air, corona, motor frictional noises; bats, insects, and other sounds of mother nature -- even beading water! Unexplained sounds have been detected but unfortunately only limited research is available to analyze their meaning.
This device is not made to hear sounds that the human ear can normally perceive, but instead it will hear ultrasound beyond the range of human hearing. (To amplify normal sounds, please see our other devices, such as the Cybernetic Ear, TurboEar, Parabolic Bionic Ear, Parabolic Microphones, and Shotgun Microphones.) Included headsets may be different from those shown in picture.
HT9 - Plans (By Download - $4.00) ..............$10.00
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Great Low Cost Hearing Aid!
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Enhances Normal Hearing 3 To 4 Times
Use for courtesy lowering of TV volume, etc.. Detect rattles, mechanical abnormalies, leaking gases, air, electrical corona. Excellent safety aid for lab or shop.
This is not FDA apparoved as a hearing aid. CYBEREAR - Ready to Use ......................$19.95 |
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TURBO - Ready to Use ................$19.95 |
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Flashlight-sized electronics is interfaced with a 12" lightweight plastic parabolic reflector, providing over 30 db of pick up gain! The parabolic dish gathers sound and focuses it to an amplifier which further increases sensitivity, resulting in an impressive boost beyond normal human hearing. Includes parabolic dish with built-in handle and amplifier mount, a hi-gain microphone/amplifier, and headsets with adjustable volume for each ear. Runs on a 9v battery which lasts ~40 hours (not included). Field-use weight is 13 ounces (shipping weight is greater due to packaging).
BIOEAR10 - Ready to use .....................$129.95
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8" Parabolic MicrophoneProvides less sound gathering and “listening power” than the larger parabolic microphones, but is a more portable and compact device for those who place a premium on field expedience.
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20" Parabolic MicrophoneHunters, trackers, nature enthusiasts, and special events!Hear conversations up to 300 yards! Use satellite technology to focus distant sounds to an ultra high-gain/low-noise amplifier with voice enhancement. System includes separate volume high-performance headphones. Unit can be tripod mounted (tripod not included). Field-use weight is 1 pound 11 ounces (shipping weight is greater due to packaging).
PM60 - Ready To Use ................................................$399.95 |
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The advantage of shotgun microphones is their ability to "hone in" on a sound source and reduce the amount of background noise. Many variables effect the transmission of sound at long distances -- whether the source is facing you, the air density and temperature, the amount of background noise, and of course the source volume. The ability to hear your target can be greatly effected by any one of these. |
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Best Performance
Designed for video production and broadcast (ENG/EFP) audio acquisition, the SMAT815R provides the narrow acceptance angle desirable for long-distance sound pickup, along with excellent sound rejection from the sides and rear of mic. The roll-off position reduces the pickup of low-frequency ambient noise (such as traffic, air-handling systems, etc.), room reverberation and mechanically coupled vibrations.
SMAT815R - Best Shotgun Mic .....................$349.95 |
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Build Your Own
Experimental device, when properly constructed allows sounds to be heard from greater distances, pick out whispers in a crowd, even faintly through windows at close range, etc.
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Noise Curtain GeneratorNeat little circuit plugs into existing stereo, radio recorder and produces a band of noise containing a wide spectrum of frequencies [white noise]. Jams microphones - Provides a soothing relaxing sound.NC4 - Plans (By Download - $3.00) ....$5.00
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Email: Sales & Orders | Email: Tech Support |
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PO Box 716, Amherst, NH 03031-0716 |
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