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| Echofone
Technical
Information |
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The inner ear plays a
significant role in our being. It translates vibrations picked up by
the skin, as well as the joints and muscles into cortical charge.
This cortical charge builds, organizes and nourishes
temporal-spatial organization for other senses and provides the
background beat for learning. The purpose of the
Echofone is to enhance the way we hear,
to improve learning abilities, communication, and emotional
behavior.
Originally designed by AquaThought Labs as a research tool, the
Echofone provides accurate perception
of frequencies which are ordinarily well above your hearing range.
Incoming high-frequency sound is converted to ultrasound and
transmitted to transducers, which contact your skin. The ultrasound
travels though your skin to the inner ear, where it is perceived as
high frequency audible sound. With the
Echofone you can generate sensation of sound without any
mechanical stimulation of the eardrum.
By allowing you to perceive spatial information embedded within high
frequencies, music and sounds gain dimension. Much information about
the position of sounds in the recording environment is encoded in
the overtones. These overtones can often be above your normal
hearing range, however with the Echofone
you are able to perceive them. This perceptual expansion adds a
sense of depth to many recordings. For example, with the
Echofone you can close your eyes and
actually sense where the instruments are located in a recorded
orchestration.
The Echofone enhances the
high-frequencies in audio from a variety of sources. CD's or DVD's
mastered entirely in the digital domain will provide exceptional
results.
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Trode Output |
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400 Hz to 100,000+ Hz
frequency response
3 watts output/channel, typical
Bridge-tied load (BTL) output configuration
Trode signal is 30 volts peak-to-peak when the volume is set at 60%
or higher
Note: The output impedance of the Echofone trode amplifier varies with
frequency, the trode impedance also varies with frequency.
With Echofone trodes, the important
spec is sound pressure level, and Echofone trode amplifiers are designed to maximize that.
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| AC
Adapter |
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Input:
120V 60 Hz
Output: 9VDC 500MA
Phones Output
32 ohms impedance
10 Hz to 20,000 Hz frequency response, -3dB
70+ dB signal/noise
200 mW output (rms) into 8 ohms, 0.1% THD
85 mW output (rms) into 32 ohms, 0.1% THD |
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