A parabolic microphone is a microphone that uses a parabolic reflector to collect and focus sound waves onto a receiver, in much the same way that a satellite dish (e.g. - a parabolic antenna) does with radio waves. Typical uses for this microphone today include nature recording, field audio for sports broadcasting (the referee being yelled at by a player for example), eavesdropping, and law enforcement. This unusually focused front sensitivity and can pick up the faintest sounds from many meters away and amplify them. This type of microphone is said to have actually been designed for espionage because of the ability to specify direction as well as amplification. On the negative side, parabolic microphones are generally not used for standard recording applications because they tend to have poor low-frequency response as a side effect of their design. This is a direct result of the physical laws that govern sound waves. Parabolas only focus waves with a wavelength much smaller than the diameter of the parabola. Since sound waves travel at 342 m/s (meters per second - the speed of sound) through the air, obtaining hi-fidelity sound (down to 20 Hz, the lower limit of human hearing) would require a parabola with a diameter greater than 17 meters (= 342 m/s / 20 Hz). Most parabolic microphones sacrifice low-end fidelity to get a more manageable size. Hear a Conversations Up to 300 Yards Away The DetectEar is the latest in high-end advanced long range listening devices. This powerful surveillance and investigative tool incorporates a 20-inch diameter snap-together parabolic dish combined with the most advanced audio circuitry available. The DetectEar is also equipped with a 3-band equalizer to adjust for specific sound frequencies, recording jack, and communications input jack for outstanding surveillance capabilities. The DetectEar can be mounted to a tripod for extended use and comes with a hard carrying case for discreet and easy transportation. Powered by only 2AAA batteries, the DetectEar is your ultimate professional listening device. It’s price you ask???  At $599.99, it’s will normally be way out of reach for the average paranormal investigation group. The Paranormal Connection Although it size can be cumbersome, it should be understood that a parabolic microphone is nothing more an ordinary microphone mounted inside a sound-reflecting dish having a parabolic cross section. As sound waves pass straight into the parabolic reflector they are focused and directed to the microphone; sounds entering the reflector dish from other angles impinge directly on the microphone, but are not focused on it by the reflector. Thus, the parabolic microphone can be highly directional, that is, more sensitive to sound sources at which it is directly pointed than to other sources. This makes the parabolic microphone useful for recording localized sources of relatively faint sounds, such as whispers, conversations, and great for EVP's (Electronic Voice Phenomena) from a distance. Also a very useful tool for Cryptozoologists & UFOlogists as well. And it’s perfectly suited for long hallways much like those found in Eastern State Penitentiary or Waverly Hills Sanitarium. In the Shadows Paranormal Project purchased their unit second hand for a bird watcher at a garage sale for less than $50! It retailed normally for $199.00 and had hardly been used. So there are deals to be had. The ITSPP unit Parabolic Ear Sound System that is exceptionally portable and rugged, featuring a multitude of features making it comparable to more expensive models. The detachable cone is only 12 inches in diameter and constructed of waterproof, shock-proof material. Which increases sound 37 times and, in certain cases depending upon other surrounding noise and wind. We have pick up on conversations at least 400 yards away. The Parabolic Ear, as it’s called, uses a very sensitive microphone with intricate circuitry to amplify sound (do not confuse this unit with cheaper look-a-like toys that are on the market). The sounds are then transmitted to an extremely high-grade amp and then to a pair of Bose headphones that help prevent harmful and unwanted loud sounds or noise from reaching the user's ears. The dish helps pinpoint and directionalize sound and reduce background noise background, and records to our Olympus MP3 Stereo digital recorders. When looking for parabolic microphone, consider these features: Super sound amplification-Focusing on sounds in the direction you point the microphone, automatic shut-off circuit that shuts off sounds over 95 decibels preventing loud sounds from amplification, independent volume control to allow you to select the best amplification level for each ear, output jacks to digital recording devices, 40 hours of continuous use on batteries, wrist straps, accessory elastic bands attach the microphone to your forearm for hands-free operation. Parabolic Microphone on a Budget
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