JPH0481200A - Headphone system - Google Patents

Abstract

PURPOSE:To bring a position of a source for sounded from speakers to outside of a head and to devise the headphone system as if a natural sound were heard by generating a phase difference of the sound sounded from left and right speakers automatically according to the movement of the position of ears or the movement of the position of a body. CONSTITUTION:The movement of a head moved from the left to the right is sensed by a piston sensor 2 and a signal output representing the movement of the head sensed by the piston sensor 2 is analyzed by an analysis section 3. This signal is received by a left speaker signal generating section 4, which generates a sound signal whose phase is slightly delayed with respect to the sound to be sounded from the left speaker. Upon the receipt of an output signal from the analysis section 3, a right speaker signal generating section 5 generates a sound signal for the right speaker whose phase is not modified. The sound signal outputted from the left speaker signal generating section 4 is sent to the left speaker 6, from which a sound is sounded. Moreover, the sound signal outputted from the right speaker signal generating section 5 is sent to the right speaker 7, from which a sound is sounded. Thus, the phase difference of sounds sounded from the left and right speakers is automatically generated according to the movement of the position of the head in this way.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a headphone system, and particularly to a Radphone system that outputs stereo sound signals from left and right speakers.

[Conventional technology]

BACKGROUND ART Conventionally, this type of headphone system is equipped with small left and right speakers, and is used to output audio signals such as stereo recording from these speakers to listen to sound three-dimensionally.

[Problem to be solved by the invention]

In the conventional headphone system described above, the phase difference between the acoustic signals output from the small left and right speakers is fixed regardless of the movement of the head position. The problem was that it sounded as if it were coming from inside my head.

An object of the present invention is to provide headphones that allow the sound source of the sound emitted from the speakers to be located outside the head instead of inside the head, allowing you to listen to the sound output from the headphones with the same feeling as listening to natural sounds. The goal is to provide a system.

[Means to solve the problem]

The headphone system of the present invention includes: (A) a sensor that recognizes left and right movements of the head; (B) an analysis unit that analyzes the output from the sensor; and (C) a headphone system according to the movement of the head position based on the analysis results of the analysis unit. (D) a left speaker signal generation unit that controls the phase of the sound for the left speaker and creates an acoustic signal; (D) controls the phase of the sound for the right speaker according to the movement of the head position based on the analysis result of the analysis unit and generates an acoustic signal; (E) a left speaker that receives the audio signal for the left speaker created by the left speaker signal creator and emits sound; (F) a front right speaker signal creator. A right speaker that receives an acoustic signal for the right speaker created by and emits sound.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram of one embodiment of the present invention.

The headphone system 1 shown in FIG. 1 includes a piston sensor 2 that recognizes left and right movements of the head by the movement of a piston whose interior is in a near-vacuum state, an analysis section 3 that analyzes the output from the piston sensor 2, and an analysis section 3 that analyzes the output from the piston sensor 2. The left speaker signal generation section 4 automatically controls the phase of the sound for the left speaker to create an acoustic signal based on the analysis results of the left speaker, and the phase of the sound for the right speaker is automatically controlled from the analysis results of the analysis section 3. a right speaker signal generation section 5 that generates an acoustic signal, a left speaker 6 that receives the left speaker acoustic signal generated by the left speaker signal generation section 5 and generates sound, and a right speaker signal generation section 5 that generates sound. It consists of a right speaker 7 that receives an audio signal for the right speaker created by and emits sound.

Next, the operation will be explained.

Now, when using the headphone system 1 shown in FIG. 1, it is assumed that the head is moving from left to right.

The movement of the head moving from left to right is detected by a piston sensor 2, and the signal output indicating the movement of the head detected by the piston sensor 2 is analyzed by an analysis section 3.

The analysis unit 3 immediately converts this into a signal indicating that the head is moving left and right and outputs it. The left speaker signal generation unit 4 receives this signal and creates an acoustic signal with a slightly delayed phase of the sound to be emitted from the left speaker. Further, when the right speaker signal generation unit 5 receives the output signal from the analysis unit 3, it generates an acoustic signal with the phase of the sound to be emitted from the right speaker unchanged. The acoustic signal output from the left speaker signal generation section 4 is sent to the left speaker 6.
Sound is output from. Further, the sound signal output from the right speaker signal generating section 5 is sent to the right speaker cuff, and the sound is output from the right speaker 7.

In this way, by automatically creating a phase difference between the sound coming from the left and right speakers according to the movement of the head position, the source of the sound coming from the speakers is not inside the head but outside the head, making it more natural. You can listen to headphones stereo in the same way as listening to sound.

〔Effect of the invention〕

As explained above, the present invention automatically creates a phase difference between the sound output from the left and right speakers according to the movement of the ear position or the movement of the body position, thereby changing the position of the sound source of the sound output from the speakers. This has the effect that you can listen to the sound output from the headphones with the same feeling as listening to natural sounds, not inside your head but outside your head.

[Brief explanation of drawings]

FIG. 1 is a block diagram of one embodiment of the present invention. 1...Headphone system, 2...Piston sensor, 3...Analysis section, 4...
Signal creation unit for left speaker, 5...Signal creation unit for right speaker, 6...Left speaker, 7...
・Right speaker.

Claims (1)

[Claims] (A) a sensor that recognizes left and right movements of the head; (B) an analysis unit that analyzes the output from the sensor; (C)
a left speaker signal generation unit that controls the phase of sound for the left speaker and creates an acoustic signal according to the movement of the head position based on the analysis result of the analysis unit; (D) the movement of the head position based on the analysis result of the analysis unit; (E) a right speaker signal generation unit that controls the phase of the sound for the right speaker and generates an acoustic signal according to the signal generation unit; (E) receives the left speaker acoustic signal generated by the left speaker signal generation unit and emits sound; A headphone system comprising: a left speaker; and (F) a right speaker that receives an audio signal for the right speaker created by the front right speaker signal creation section and emits sound.