JPH0638285A - Headphone - Google Patents

Abstract

PURPOSE:To improve the presence of a sound field of the headphone by controlling the quantity of crosstalk. CONSTITUTION:A parabolic reflecting plate 7 is fitted to a sounding unit 5 of an open air type having a conventional head band 4 via a support rod 6. Most of sound waves reflected toward the outside of ears is reflected in the reflecting plate 7 and returns to the ears. Since the waves return to the ears with a delay to radiating sound waves, the ears recognizes it as a phase difference component and forms the presence. Furthermore, a sense of a sound pressure is given to the surrounding of the ears and it also contributes to the presence. Moreover, the sound waves reflected and diffracted in the parabolic reflecting plate at the ends of the reflecting plate 7 reach the ear 2a or 2b at the reflecting side to provide a crosstalk component to both the ears thereby producing a sense as if the sound source were parted from the ears.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a headphone structure.

[0002]

2. Description of the Related Art As a conventional sound field type headphone, (A) Stax sound field type headphone as shown in FIG.
Alternatively, the sound field is localized in the front by setting it vertically, and the sound field is appropriately reflected to the ear by making the box housing the sounding unit 1 into the cage structure 3 to have a certain volume. As a result, a sound with a phase difference is delivered to the ear, creating a sound field feeling similar to that of a speaker.

(B) As sound field type headphones by AKG, as shown in FIG. 2, a sound field feeling close to that of a speaker is produced by slightly separating the sounding unit 1 itself from the ear 2.

At this time, the sounding unit 1 may be set obliquely to the ear, as in Stax.

[0005]

However, the conventional countermeasures against the sound field in the headphones are those of Stax and AKG, which are individually performed in the sounding unit parts on the left and right of the ear. The structure of has the characteristic that there is no crosstalk compared to listening with a speaker. This is an advantage that a speaker does not have in the case of listening to a compact disc (CD) or software that emphasizes the sound field. However, on the other hand, since there is no crosstalk at all, there is always the impression that it is ringing near the ear. The reason for this is that the ear also obtains information regarding the distance from the amount of left and right crosstalk.

[0006] Conventional headphones do not consider the amount of crosstalk at all, or are designed on the premise that there is no crosstalk from the beginning. In this case, it feels strange compared to when using speakers. The situation is exactly the same for the sound field type headphones of Stax and AKG because crosstalk is not taken into consideration.

An object of the present invention is to eliminate the above-mentioned drawbacks of the prior art and control the amount of crosstalk.
It is to provide a headphone with an improved sound field feeling of the headphone.

[0008]

SUMMARY OF THE INVENTION The gist of the present invention is to attach a sound wave reflection plate to a headphone to control the amount of crosstalk, thereby improving the sound field feeling of the headphone.

That is, the above object of the present invention is to provide headphones in which headphones are supported by headbands so that the sounding units can be applied to both ears, and an open air type is used as the sounding units, and the sound emitted from the sounding units of each ear is binaural. The headphone is characterized in that a parabolic reflector is attached to the outside of each sounding unit via a support rod so as to reflect each other.

The sounding unit in the present invention is an open-air type, and it is desirable that the size is small (30% or less of the usual). As the support rod for supporting the reflection plate on the outside of the sounding unit in the present invention, an appropriate distance is set so that the sound from the sounding unit is spread by the reflection plate.

The size of the parabolic reflector is from 1 to 1 in the vertical direction.
20 cm, 1 to 30 cm in the horizontal direction, and in particular, the size and arrangement in the horizontal direction protrude from the tangent line of the occipital region of the wearer as an example so that the sounds emitted from the sounding units of each ear are reflected between the ears. Is desirable. The parabolic shape can be in the horizontal direction and the vertical direction can be a straight line,
In some cases, the reflector may be paraboloidal. This causes the left and right sounds to be reflected to each other.

The reflector used is one having a large number of holes each having a radius of 1 μm to 3 cm.

An embodiment of the headphones of the present invention will be described with reference to the drawings. However, the present invention is not limited to this embodiment.

FIG. 1 shows an embodiment of the structure of headphones according to the present invention. The structure is such that an open air type sounding unit 5 having a normal headband 4 is attached with a reflecting plate 7 via a supporting rod 6.

Of the sound waves emitted from the sounding unit 5, those emitted directly to the ear 2 are immediately recognized as sounds. Next, most of the sound waves emitted toward the outside of the ear are reflected by the reflector 7 and return to the ear. Since these sounds return later than the sound waves emitted toward the ear, the ear perceives them as a phase difference component and creates a sense of presence. It also gives a sense of sound pressure around the ears, which also contributes to the realism. Further, the sound waves reflected and diffracted by the end portion of the reflector 7, particularly the reflector protruding from the back of the head in this case, are the ears 2a or 2b on the opposite side.
To reach both ears, giving the illusion that the sound source is far from the ears.

With the above-mentioned operations, a sound field feeling close to that of a speaker is created by creating a sense of realism and distance to the sound source.

[0017]

By controlling the amount of crosstalk by the headphones of the present invention, the sound field can be localized at a relatively distant natural position in the front by adding a sense of distance close to that when listening through a speaker. I can.

Further, by reducing the feeling of sound clinging to the ears, fatigue is reduced and audibility for a long time is enabled.

Also, the sound is prevented from being localized in the head even when listening to soft-sounding software or monaural software.

[Brief description of drawings]

FIG. 1 is a front view (A), a plan view (B) and a side view (C) of a sound field type headphone according to the present invention.

FIG. 2 is a front view (A) of a sound field type headphone manufactured by AKG.
Plan view (B).

FIG. 3 is a front view (A) and a plan view (B) of a conventional Stax sound field type headphone.

[Explanation of symbols]

 1 Sounding Unit 2, 2a, 2b Ear 3 Cage Structure 4 Headband 5 Open Air Type Sounding Unit 6 Support Rod 7 Parabolic Reflector

Claims (1)

[Claims] 1. A headphone that is supported by a headband so that a sounding unit can be applied to both ears, and an open air type is used as the sounding unit so that sound emitted from the sounding unit of each ear is reflected between both ears. A headphone characterized in that a parabolic reflector is attached to the outside of each sounding unit via a support rod.