|gThe person is perceiving the direction of which the sound comes excluding the ear through the skin of the face etc.
And,the supersonic wave greatly contributes to this action."
|We confirmed this fact by the following experiments.|
|1 Machine used
1. Closed type dynamic headphone
The arm was put up to the headphone case,
ON-OFF switch of BATPURE was put on the case for the experiment.
(As the source devices)
|2 Experiment method and result|
|1. The ear-pads is applied to the ear when the headphone put on the head.
Next, the arm is set so that BATPURE may come in front of the face.
2. And, music or the movie is auditioned.
b. Next, the switch of BATPURE is turned on.
|Keeping away the arm from the face as much as possible so that the supersonic wave from BATPURE may strike
the entire face, and BATPURE being located diagonal before the person are the most effective.
|C. Other experiments|
|a. The arm is turned behind the head.
And BATPURE was arranged behind the head.
Result; The sound stage was located behind the head.
b. We similarly experimented on a variety of supersonic wave units
(The reason has not been understood yet)
I think that it is near torture to audition the headphone
of the electronically controlled for a long time,
though a lot of surround headphones are sold.
Because it stick in surroundings of the head unnaturally.
The headphone used is closed type dynamic headphone.
So the originating supersonic wave doesn't reach the ear directly from BATPURE applied to the point of
the postponed arm besides headphone case.
Therefore, the following conclusion was obtained.
a. The influence that turns on BATPURE has been synthesized through the skin of the head
to sound information that enters from the ear.
b. The originated supersonic wave has one fo the key to informs of the directionality of the source.
|4. Proposal from TAKET|
|We propose the new method of attention of headphones based on this result.|
|5. Contact us about new discovery|
|I think that it can make the best use of the usage of BATPURE for many fields. Headphone, speaker, TV, car,
architectural sound, and medical equipment, etc.
The cost decreases greatly, too, when the design built into these equipment beforehand is possible,
and after making mass-production it.
Please contact us if any manufacturer interested it by all means. mail adress;@firstname.lastname@example.org