JP3090466U - Front and rear in-phase audio system. - Google Patents

Abstract

(57) [Summary] (with correction) [PROBLEMS] To provide an audio system that is natural in hearing and does not get tired even after listening for a long time. In an audio system in which rear speakers (2, 2 ') are installed in a direction opposite to a direction of front speakers (1, 1'), that is, in an opposite phase, the rear speakers (2, 2) are arranged.
The phase of +/- of the signal going to 2 'is inverted so that the front speakers 1, 1' and the rear speakers 2, 2 'operate in phase.

Description

[Detailed description of the invention]

 Currently, in an audio system with front (front) and rear (rear) speakers, the rear speakers are installed in the opposite direction to the front speakers, and the rear speakers are not inverted. Playback is in reverse phase. For this reason, the audio system operates in the front and rear in-phase by inverting the phase of the rear speakers installed opposite to the front speakers.

[Date of Submission] June 19, 2002 (June 19, 2002)

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction contents] [Detailed description of the invention]

 This invention is an audio system in which speakers are mounted on the left, right, front and rear sides, and the front and rear sides operate in the same phase. In a conventional audio system with front and rear speakers, the rear speakers are opposite to the front speakers, as shown in Fig. 1, that is, the front and rear of the speaker are in opposite phases, with the movement of the diaphragm moving in the opposite direction. is set up. For this reason, if you play a record that should be played back at the front and rear, or a signal that is artificially split between the front and rear, the unpleasant feeling that is always unnatural, and the head hurts because of the opposite phase, It was a noisy sound. The present invention has been devised in order to eliminate the drawback. Referring to FIG. 1, the signal going to the front speaker 11 'and the rear speaker 22' installed in the opposite direction is inverted by + -phase. This is an audio system that operates in the front and rear phase.

[Brief description of the drawings]

Fig. 1 Listening to speakers installed in the same phase and in the same direction. When this is heard in monaural, the sound image is localized in the front, and it sounds like a natural sound.

FIG. 2 is listening to speakers installed in the same phase and in opposite directions. If you listen to this in monaural, the sound image will not be located in front of you, and it will be unnatural, causing a headache or nausea.

FIG. 3 is a diagram in which two speakers connected in the same phase are mounted in one speaker box in the same direction so that air does not leak. If you send an audio signal to this, sound will be heard normally

FIG. 4 is a diagram in which two speakers connected in phase are fixed with screws so as to prevent air from leaking.
When an audio signal is input to this, they interfere with each other's movements, and no sound is produced. This phenomenon is weak in the room.

[Fig. 5] In the room, speakers connected in front phase are installed on the front left, front center, and front right, and connected in phase with the front speakers, and the speakers attached to the speaker box in the same direction as the rear left and rear. It is a figure installed on the right and listening to surround (DVD, CD, video) in the center of the room. In this case, you can listen with a pleasant sound without getting tired with natural sounds.

[Fig. 6] In the room, speakers connected in front phase are installed on the front left, front center, and front right, installed in phase with the front speakers, and speakers attached to the speaker box in the opposite direction to the rear left and rear. It is a figure installed on the right and listening to surround in the center of the room. In this case, the front and rear speakers interfere with each other, resulting in an unnatural sound, tired listening, and unpleasant sound.

[Fig. 7] In the room, speakers installed in front phase are installed on the front left, front center, and front right, installed in phase opposite to the front speakers, and the speakers attached to the speaker box in the opposite direction to the front speakers are installed on the rear left. It is a figure installed in the back right and listening to the surround in the center of the room. In this case, since the front speaker and the rear speaker operate in the same phase, the sound can be heard with a natural sound and a comfortable sound without fatigue.

[Procedure amendment]

[Submission date] June 19, 2002 (2002.6.1
9)

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction contents]

[Document Name] Statement

[Name of device] Front and rear in-phase audio system

[Utility model registration claims]

[Brief description of the drawings]

FIG. 1 is a schematic diagram of the present invention.

[Description of Signs] 1 and 1 ′ are front speakers, 2,
2 'is a rear speaker.

[Procedure amendment 3]

[Document name to be amended] Drawing

[Correction target item name] All figures

[Correction method] Change

[Correction contents]

FIG.

Claims (1)

[Utility model registration claims] 1. An audio system in which a rear speaker is installed opposite to a front speaker (opposite phase), and +/- of a rear speaker of the audio system is inverted to operate in the same phase as the front speaker.