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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.
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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
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
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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