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JPH0481200

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DESCRIPTION JPH0481200
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a
headphone system, and more particularly to a radphone system for outputting stereo sound
signals from left and right speakers. 2. Description of the Related Art Heretofore, this type of
headphone system has small speakers on the left and right sides, and these speakers are used to
output sound signals such as stereo recording from the speakers and listen in three dimensions.
[Problem to be Solved by the Invention] In the above-mentioned conventional headphone system,
since the phase difference of the sound signals outputted from the left and right small speakers is
fixed irrespective of the movement of the head position, stereo music is generated by the
headphone system. The listener who heard the sound had a problem that the sound seemed to be
emitted from his head. The object of the present invention is that the position of the sound
source of the sound coming from the speaker is not in the head but outside the head, and the
headphone can hear the sound output from the headphone as it feels like listening to the natural
sound To provide a system. [Means for Solving the Problems] The headphone system of the
present invention comprises (A) a sensor that recognizes left and right movement of the head, (B)
an analysis unit that analyzes an output from the sensor, and (C) the analysis unit. Signal
generation unit for left speaker that controls sound phase for left speaker according to
movement of head position based on analysis result and creates acoustic signal, (D) From right
side according to movement of head position based on analysis result of analysis unit (E) a left
speaker that generates an acoustic signal by receiving the acoustic signal for the left speaker
created by the left speaker signal creation unit (E) F) A right speaker is provided which receives
the acoustic signal for the right speaker created by the front right loudspeaker signal creation
unit and emits sound. Next, an embodiment of the present invention will be described with
reference to the drawings. FIG. 1 is a block diagram of an embodiment of the present invention.
The headphone system 1 shown in FIG. 1 includes a piston sensor 2 that recognizes left and right
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movement of the head by movement of a piston whose inside is made close to vacuum, an
analysis unit 3 that analyzes an output from the piston sensor 2, and an analysis unit 3 Based on
the analysis result of the left speaker, the phase of the sound for the left speaker is automatically
controlled to create an acoustic signal. From the analysis result of the analysis unit 3, the phase
for the sound for the right speaker is automatically controlled. Right speaker signal creating unit
5 that creates an acoustic signal, and left speaker 6 that emits sound by receiving an acoustic
signal for the left speaker created by the left speaker signal creating unit 5, and a right speaker
signal creating unit 5 And the right speaker 7 which emits the sound by receiving the sound
signal for the right speaker created by the above.
Next, the operation will be described. Now, when using the headphone system 1 shown in FIG. 1,
it is assumed that the head moves from left to right. The movement of the head moving from the
left to the right is captured by the piston sensor 2, and the signal output indicating the movement
of the head captured by the piston sensor 2 is analyzed by the analysis unit 3. The analysis unit 3
immediately converts and outputs a signal indicating that the head is moving to the left and right.
The left speaker signal creation unit 4 receives this signal, and creates an acoustic signal in
which the phase of the sound to be emitted from the left speaker is slightly delayed. In addition,
when the right speaker signal creation unit 5 receives the output signal from the analysis unit 3,
the phase of the sound to be emitted from the right speaker is the same as the phase of the
sound and the acoustic signal is created. The acoustic signal output from the left speaker signal
generation unit 4 is sent to the left speaker 6, and the sound is output from the left speaker 6.
Further, the acoustic signal output from the right speaker signal generation unit 5 is sent to the
right / speak cuff, and the sound is output from the right speaker 7. Thus, according to the
movement of the position of the head, by automatically creating the phase difference of the
sound emitted from the left and right speakers, the position of the sound source of the sound
emitted from the speaker becomes outside the head instead of in the head. You can listen to
headphone stereo in the same way as listening to sound. As described above, according to the
movement of the position of the ear or the movement of the position of the body according to the
present invention, the sound emitted from the speakers is automatically generated by
automatically creating the phase difference between the sounds emitted from the left and right
speakers. The position of the sound source is not in the head but in the head, and it has the effect
of being able to hear the sound output from the headphones in the same way as listening to
natural sounds.
[0002]
Brief description of the drawings
[0003]
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FIG. 1 is a block diagram of an embodiment of the present invention.
1 и и и и и и и Headphone system, 2 и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и
и и и и и и и и и и и и и и ...? Signal creation unit for right speaker, 6
иииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииии Right
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