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Binaural Microphones

(a.k.a. Miniature Omnidirectional microphones)


General Product Information

Visit our Binaural vs Cardioid FAQ if you are wondering which type of mics would be better for your recording situations.

Visit our MP3 Samples to hear sample recordings made with our microphones.

Note: In certain recording situations, you may need a separate power source for your microphones. Visit our Battery Module FAQ for more info on why you would want to use a battery module. If you are planning on recording loud sounds (like an amplified rock concert, for example), please read the Battery Module FAQ for details on making recordings of loud sounds.

Binaural recordings are two channel recordings created by placing two Omnidirectional microphones in your ears (or as close to the ears as is practical). Using this technique, the location information contained in the frequency, amplitude and phase responses of the left and right channels closely match the cues required by the human auditory system to localize sound sources. Positioned in this way, Binaural microphones accurately capture sonic information coming from all directions and will produce extremely realistic recordings when using headphones for playback.

These microphones can also be used in a standard stereo configuration by placing them approximately 12" to 24" apart, away from your head. This configuration provides excellent stereo imaging for listening through loudspeakers or headphones.

Battery modules (power supplies)
In certain recording situations, you may need a separate power source for your microphones. Using these mics with a battery module will allow you to utilize the line input of your recorder instead of the mic input (in loud recording situations). In addition, the higher voltage supplied by the battery/filter module increases the dynamic range of the microphones and allows recordings to be made with high sound pressure levels without distortion or clipping. Since the battery module and microphones are purchased separately, one battery module can be used for several different mic sets. Visit our Battery Module FAQ for more info on why you would want to use a battery module. All of our Binaural microphones are compatible with any of our battery/filter modules.

Interchangeable elements
Aside from superior specs and performance, some of our microphones have optional interchangeable mic elements available, each with it's own pickup pattern: Cardioid, Hyper-cardioid, Omni-directional and Mini-shotgun. Each additional element is sold separately, and two are needed for a stereo set. Mic elements are available here.

The Hyper-cardioid and Mini-shotgun elements allows you to make excellent recordings from greater distances than even the cardioids will allow. When compared to an Omni directional element, a recording made with unidirectional microphones will sound as is if the microphones were much closer to the sound source. This can be a great advantage when making recordings from a distance. They will also do a great job of reducing unwanted audience noise from the sides and rear.

Cable and connector details
The microphone cables are terminated in a standard 1/8" gold plated stereo mini plug, unless otherwise noted. All of these electret condenser microphones require a power source to turn them 'on'. There are two common ways to power them. The first is to plug them into any device (Stereo USB adapter; Digital recorder, DAT, MiniDisc, Camcorder, or other) that supplies a bias voltage of between 1.5 and 12 Volts DC (commonly known as "plug-in-power") at the microphone input jack. This configuration allows you to use the microphones directly into the recorder when recording less demanding subject material (where the sound level will not be extremely loud or bassy). However, for optimum performance in loud situations, these mics can be used in conjunction with one of our battery modules that supplies these microphones (or any similar microphones from another manufacturer) with the optimum bias voltage of 9-12 volts D.C. This additional power allows the microphones to reproduce the louder sound waves without overloading, causing distorted sound. This powering scheme works with most electret condenser microphones, but not all. Those that don't work this way are noted in the detail area of each item.

Sound Quality
The Sound Professionals Binaural microphone systems have an extended frequency response and a very natural and accurate sound, providing deep, solid bass, smooth midrange and clean highs. They have a very wide dynamic range, and will handle very high sound pressure levels without distortion or clipping. (See details above for more info). When combined with one of the battery modules, they are designed to operate into a nominal impedance of 10K Ohms.

Warranty Information

The Sound Professionals™, Inc.
3444 Sylon Blvd.
Hainesport, NJ 08036 USA

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