CN220210601U - Sound system - Google Patents

Abstract

The utility model discloses a sound system, which comprises an omnidirectional loudspeaker assembly and a directional loudspeaker assembly, wherein the omnidirectional loudspeaker assembly at least comprises a front left loudspeaker, a middle loudspeaker and a front right loudspeaker which are respectively arranged at the left front, the right front and the right front of a listener, the directional loudspeaker assembly at least comprises a first directional loudspeaker, a second directional loudspeaker, a third directional loudspeaker and a fourth directional loudspeaker, the first directional loudspeaker and the second directional loudspeaker respectively output first sound waves and second sound waves to the left side of the top of the head and the right side of the top of the head of the listener in a directional way, and the third directional loudspeaker and the fourth directional loudspeaker respectively output third sound waves and fourth sound waves to the left side and the right side of the listener in a directional way. The utility model provides a sound system with simplified structure, easily controlled reflection effect and good tone quality presentation effect.

Description

Sound system

Technical Field

The utility model relates to the technical field of surround sound systems, in particular to a sound system.

Background

A surround sound speaker system includes a number of speakers and a Low Frequency Effects (LFE) speaker (subwoofer) designed to be placed at a designated location in a room to provide an audio surround effect of 360 degrees of sound in a horizontal plane. In most cases, the surround sound system maps each source channel to its own speaker. Many different surround sound configurations have been developed, and the standard for most surround sound applications today is a 5.1 surround sound format with 3 front speakers, 2 rear speakers and 1 LFE channel. This is commonly used for film, television and consumer applications and is typically driven by the prescribed locations required for traditional multi-channel mixing.

However, 5.1 surround sound systems are generally limited in their ability to transmit 180 degrees or panoramic-like sound, so a wider range of surround sound formats have been developed. For example, 7.1 channel surround sound is commonly used in large cinema theatres and two additional channels are added to provide additional left/right surround channels or even additional screen channels. Other surround sound configurations include 9.1, 10.2, 11.1, 22.2, etc.

A common problem in surround sound system setup in theatre and home environments is the location of speakers within a room. Different room sizes and dimensions may place constraints on speaker positioning, and the angle of orientation of each speaker, as well as their relative positions, are also important. The advent of advanced audio processing systems has introduced the possibility of using many different speakers including tweeters for configurations such as 5.1.2 (5 surround, 1 LFE and 2 tweeters), 7.1.2,7.1.4,9.1.2, and the like.

The most advanced home-level surround sound system is the dolbyatm 7.1.4 system, which adds 4 sky channels based on the previous 7.1 channels to become a 3D surround sound, and the standard system requires at least 12 independent speakers.

The echo wall is a simplified home cinema system, can be used for compensating the disadvantages of poor tone quality and poor sound effect in the television watching process, can integrate a multichannel loudspeaker box and a power amplifier into a strip-shaped box body, and ensures that each channel is isolated but connected with each other, so that the tone quality presenting effect is better. The whispering gallery can be placed below the television or hung on a wall, and the middle and high frequency is simulated by the DSP effect to simulate the sound effect, but the sound effect of the television is enhanced, so that the effect of the household whispering gallery is generally enough to meet the video watching requirement.

However, under normal conditions, the whispering gallery main sound box can replace 3 sound boxes of FL (front left), C (middle), FR (front right), SW (subwoofer) is almost necessarily split, and the rest 8 channels can only be realized by adding rear split sound boxes and utilizing reflection. This brings about the following disadvantages: 1. the original purpose of adding the rear split sound box and having the offending echo wall is that the system is complicated, the placement space and the wiring are complicated, and the novel wireless sound box cannot be used in a long-time off-line mode. 2. The diversity of the user's room and the nature of the sound waves makes the effect of reflection difficult to control. For example, the optimal distance between a person and a sound box is proportional to the height of the room, and if the room is high but not long enough, the effect is poor. b. The directionality of sound waves is weak, especially at low frequencies. c. Sound waves attenuate rapidly in the air, long-distance sound pressure is ensured, and stronger reverberation can be generated in a room by a loudspeaker to influence the overall effect.

Therefore, how to provide an audio system with simplified structure, easily controlled reflection effect and good sound quality presenting effect is a technical problem to be solved.

The utility model comprises the following steps:

the utility model aims to provide an acoustic system with a simplified structure, easily controlled reflection effect and good tone quality presentation effect.

In order to achieve the above-mentioned object, the present utility model provides a sound system, which includes an omni-directional speaker assembly and a directional speaker assembly, wherein the omni-directional speaker assembly includes at least a front left speaker, a center speaker and a front right speaker, which are respectively disposed at the left front, the right front, and the right front of a listener, the directional speaker assembly includes at least a first directional speaker, a second directional speaker, a third directional speaker and a fourth directional speaker, which respectively output a first sound wave and a second sound wave to the left side of the top of the head and the right side of the top of the head of the listener, and the third directional speaker and the fourth directional speaker respectively output a third sound wave and a fourth sound wave to the left side and the right side of the listener.

In a preferred embodiment, the omni-directional speaker assembly and the directional speaker assembly are integrated within a single enclosure.

In a preferred embodiment, the front left speaker, the middle speaker and the front right speaker are respectively disposed at left, middle and right positions of the front surface of the sound box, the first directional speaker and the second directional speaker are respectively disposed at left and right positions of the upper surface of the sound box, and the third directional speaker and the fourth directional speaker are respectively disposed on the left side surface and the right side surface of the sound box.

In a preferred embodiment, the first directional speaker includes a first front left directional speaker and a first rear left directional speaker disposed at front left and rear left positions of the upper surface of the speaker box, respectively, and the second directional speaker includes a first front right directional speaker and a first rear right directional speaker disposed at front right and rear right positions of the upper surface of the speaker box, respectively.

In a preferred embodiment, the system further comprises a first reflector plate, a second reflector plate, a third reflector plate and a fourth reflector plate, the first and second reflector plates being disposed to the left and right of the top of the head of the listener, respectively, the first directional speaker being oriented toward the first reflector plate and reflecting the first sound wave to the left of the top of the head of the listener via the first reflector plate, the second directional speaker being oriented toward the second reflector plate and reflecting the second sound wave to the right of the top of the head of the listener via the second reflector plate; the third reflecting plate and the fourth reflecting plate are respectively arranged on the left side and the right side of the listener, the third directional loudspeaker faces the third reflecting plate and reflects the third sound wave to the left side of the listener through the third reflecting plate, and the fourth directional loudspeaker faces the fourth reflecting plate and reflects the fourth sound wave to the right side of the listener through the fourth reflecting plate.

In a preferred embodiment, the angles of the first, second, third and fourth reflecting plates are adjustable.

In a preferred embodiment, the first reflecting plate includes a first top left front reflecting plate and a first top left rear reflecting plate disposed on a top left front side and a top left rear side of the listener, respectively, the second reflecting plate includes a second top right front reflecting plate and a second top right rear reflecting plate disposed on a top right front side and a top right rear side of the listener, respectively, the third reflecting plate includes a third left front reflecting plate and a third left rear reflecting plate disposed on a left front side and a left rear side of the listener, respectively, and the fourth reflecting plate includes a fourth right front reflecting plate and a fourth right rear reflecting plate disposed on a right front side and a right rear side of the listener, respectively.

In a preferred embodiment, each directional speaker of the directional speaker assembly is implemented with a piezoelectric transducer assembly arranged in an array or with an electrostatic membrane speaker.

In a preferred embodiment, the omni-directional speaker assembly further comprises a bass box disposed in front of the listener.

In a preferred embodiment, the bass loudspeaker is located between the front left speaker and the center speaker, or between the front right speaker and the center speaker.

Compared with the prior art, the utility model has the following beneficial effects: the utility model constructs the home sound system by combining the directional loudspeaker and the traditional omnidirectional loudspeaker, utilizes the characteristic that the directional loudspeaker can directionally output sound waves to construct the sound system with the audio surrounding effect of 360 degrees of sound, simplifies the structure of the traditional sound system, simultaneously, the reflection effect of sound waves emitted by the directional loudspeaker is easy to control, and finally, the effect is better.

Description of the drawings:

FIG. 1 is a schematic diagram of an acoustic system according to an embodiment of the present utility model;

FIG. 2 is a schematic side view of an acoustic system according to an embodiment of the present utility model;

FIG. 3 is a schematic top view of an audio system according to an embodiment of the utility model;

fig. 4 is a schematic structural diagram of an acoustic system according to another embodiment of the present utility model.

The reference numerals are:

1. an omni-directional speaker assembly, 11, a front left speaker, 12, a center speaker, 13, a front right speaker, 2, a directional speaker assembly, 21, a first directional speaker, 211, a first left front directional speaker, 212, a first left rear directional speaker, 22, a second directional speaker, 221, a first right front directional speaker, 222, a first right rear directional speaker, 23, a third directional speaker, 231, a third left front directional speaker, 232, a third left rear directional speaker, 24, a fourth directional speaker, 241, a fourth right front directional speaker, 242, a fourth right rear directional speaker, 25, a first sound wave, 26, a second sound wave, 27, a third sound wave, 28, a fourth sound wave, 3, a sound box, 4, a reflector plate, 41, a first reflector plate, 42, a second reflector plate, 43, a third reflector plate, 44, and a fourth reflector plate.

The specific embodiment is as follows:

the following detailed description of specific embodiments of the utility model is, but it should be understood that the utility model is not limited to specific embodiments.

Throughout the specification and claims, unless explicitly stated otherwise, the term "comprise" or variations thereof such as "comprises" or "comprising", etc. will be understood to include the stated element or component without excluding other elements or components.

Referring to fig. 1 to 3, a sound system according to an embodiment of the present utility model includes an omni-directional speaker assembly 1 and a directional speaker assembly 2, which are combined to form a sound system having an audio surround effect of 360 degrees. When the system is used, the system is preferably used in a home theater use scene, and the system is not limited to the scene, and can be applied to other scenes such as a vehicle and the like.

Specifically, in this embodiment, the omni-directional speaker assembly 1 and the directional speaker assembly 2 are integrated into a single enclosure 3, and the enclosure 3 is positioned in front of the listener (not shown).

In this embodiment, the omni-directional speaker assembly 1 includes a front left speaker 11, a center speaker 12, and a front right speaker 13, which are disposed on the front surface of the speaker box 3 and are located at the left, center, and right positions of the front surface, i.e., in the left front, right front, and right front of the listener, respectively. In practice, these three speakers may be implemented using conventional speakers or speaker arrays. In another alternative embodiment, the omni-directional speaker assembly 1 may further comprise a bass enclosure (SW, not shown) also integrated on enclosure 3 and located between the front left speaker 11 and the center speaker 12 or between the front right speaker 13 and the center speaker 12.

In this embodiment, the directional speaker assembly 2 includes at least four directional speakers, which are respectively defined as a first directional speaker 21, a second directional speaker 22, a third directional speaker 23, and a fourth directional speaker 24.

Specifically, the first directional speaker 21 and the second directional speaker 22 are respectively disposed at left and right positions on the upper surface of the speaker box 3, and respectively output the first sound wave 25 and the second sound wave 26 to the left side of the top of the head and the right side of the top of the head of the listener. In one embodiment, the first directional speaker 21 and the second directional speaker 22 are composed of a single speaker, i.e., directional speakers are provided at left and right positions of the upper surface of the cabinet 3. In another specific embodiment, as shown in fig. 4, the first directional speaker 21 may further include a first front left directional speaker 211 and a first rear left directional speaker 212 disposed at front left and rear left positions of the upper surface of the speaker box 3, respectively, and the second directional speaker 22 includes a first front right directional speaker 221 and a first rear right directional speaker 222 disposed at front right and rear right positions of the upper surface of the speaker box 3, respectively. Wherein sound emitting surfaces of the first front left directional speaker 211 and the first rear left directional speaker 212 face to front left and rear left positions of an indoor ceiling, respectively, and sound waves emitted therefrom are reflected by the ceiling and then respectively directed to a listener. Similarly, the sound emitting surfaces of the second front right directional speaker 221 and the second rear right directional speaker 222 face the front right and rear right positions of the indoor ceiling, respectively, and the emitted sound waves are reflected by the ceiling and are directed to the listener, respectively.

The third directional speaker 23 and the fourth directional speaker 24 are respectively disposed on the left side surface and the right side surface of the sound box 3, and respectively output the third sound wave 27 and the fourth sound wave 28 to the left side and the right side of the listener in a directional manner. In one embodiment, the third directional speaker 23 and the fourth directional speaker 24 are composed of a single speaker, i.e., directional speakers are provided on the left and right sides of the cabinet 3, respectively. In another specific embodiment, the third directional speaker 23 may further include a third front left directional speaker 231 and a third rear left directional speaker 232 disposed at front left and rear left positions of the left side surface of the speaker box 3, respectively, and the fourth directional speaker 24 includes a fourth front right directional speaker 241 and a fourth rear right directional speaker 242 disposed at front right and rear right positions of the right side surface of the speaker box 3, respectively. Wherein, the sound emitting surfaces of the third left front directional speaker 231 and the third left rear directional speaker 232 face the left front and left rear positions of the indoor left side wall respectively, and the emitted sound waves are respectively and directionally transmitted to the listener after being reflected by the left side wall. Similarly, the sound emitting surfaces of the fourth front right directional speaker 241 and the fourth rear right directional speaker 242 face the front right and rear right positions of the indoor right side wall, respectively, and the emitted sound waves are reflected by the ceiling and are directed and delivered to the listener, respectively.

Preferably, the system further comprises a plurality of reflecting plates 4, and each reflecting plate 4 is used for a directional loudspeaker, specifically, the sound emitting surface of the directional loudspeaker faces to the reflecting plate, and sound waves emitted by the directional loudspeaker are reflected by the reflecting plate 4 and then are directionally output to a listener. Specifically, in the present embodiment, the reflection plate 4 includes a first reflection plate 41, a second reflection plate 42, a third reflection plate 43, and a fourth reflection plate 44, corresponding to the first directional speaker 21, the second directional speaker 22, the third directional speaker 23, and the fourth directional speaker 24, respectively. Wherein the first reflecting plate 41 and the second reflecting plate 42 are respectively arranged at the left side of the head top and the right side of the head top of the listener, specifically arranged at the front left side and the rear left side of the ceiling, respectively corresponding to the first directional speaker 21 and the second directional speaker 22, the first directional speaker 21 faces the first reflecting plate 41 and reflects the first sound wave 25 to the left side of the head top of the listener through the first reflecting plate 41, and the second directional speaker 22 faces the second reflecting plate 42 and reflects the second sound wave 26 to the right side of the head top of the listener through the second reflecting plate 42; the third reflecting plate 43 and the fourth reflecting plate 44 are respectively disposed on the left side and the right side of the listener, specifically on the left side wall and the right side wall of the room, respectively corresponding to the third directional speaker 23 and the fourth directional speaker 24, the third directional speaker 23 faces the third reflecting plate 43 and reflects the third sound wave 27 to the left side of the listener via the third reflecting plate 43, and the fourth directional speaker 24 faces the fourth reflecting plate 44 and reflects the fourth sound wave 28 to the right side of the listener via the fourth reflecting plate 44. In a specific embodiment, the first reflecting plate 41 may further include a first top left front reflecting plate (not shown) and a first top left rear reflecting plate (not shown) respectively disposed on the left front side of the head and the left rear side of the head of the listener, corresponding to the first left front directional speaker 211 and the first left rear directional speaker 212, respectively; the second reflection plate 42 includes a second top right front reflection plate (not shown) and a second top right rear reflection plate (not shown) provided at the top right front side and the top right rear side of the listener, respectively, corresponding to the above-described second right front directional speaker 221 and second right rear directional speaker 222, respectively; the third reflection plate 43 includes a third left front reflection plate (not shown) and a third left rear reflection plate (not shown) provided at the left front side and the left rear side of the listener, respectively, corresponding to the above-described third left front directional speaker 231 and third left rear directional speaker 232, respectively; the fourth reflection plate 44 includes a fourth right front reflection plate (not shown) and a fourth right rear reflection plate (not shown) provided at the right front side and the right rear side of the listener, respectively; corresponding to the fourth front right directional speaker 241 and the fourth rear right directional speaker 242 described above, respectively.

Preferably, the angles of the first, second, third and fourth reflection plates 41, 42, 43 and 44 are adjustable.

In practice, the directional speakers of the directional speaker assembly 2 may be implemented using piezoelectric transducer assemblies arranged in an array or using electrostatic film speakers.

The utility model has the advantages that the utility model constructs the home sound system by combining the directional loudspeaker and the traditional omnidirectional loudspeaker, and constructs the sound system with the audio surrounding effect of 360 degrees of sound by utilizing the characteristic that the directional loudspeaker can directionally output sound waves, thereby simplifying the structure of the existing sound system, simultaneously controlling the reflection effect of sound waves emitted by the directional loudspeaker easily and finally presenting better effect.

The foregoing descriptions of specific exemplary embodiments of the present utility model are presented for purposes of illustration and description. It is not intended to limit the utility model to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain the specific principles of the utility model and its practical application to thereby enable one skilled in the art to make and utilize the utility model in various exemplary embodiments and with various modifications as are suited to the particular use contemplated. It is intended that the scope of the utility model be defined by the claims and their equivalents.

Claims (8)

1. A sound system comprising an omni-directional speaker assembly and a directional speaker assembly, the omni-directional speaker assembly comprising at least a front left speaker, a center speaker and a front right speaker disposed in front of a left, right, front of a listener, respectively, the directional speaker assembly comprising at least a first directional speaker, a second directional speaker, a third directional speaker and a fourth directional speaker, the first directional speaker and the second directional speaker directing output a first sound wave and a second sound wave to a top left side and a top right side of the listener, respectively, the third directional speaker and the fourth directional speaker directing output a third sound wave and a fourth sound wave to a left side and a right side of the listener, respectively; the omnidirectional loudspeaker assembly and the directional loudspeaker assembly are integrated in a loudspeaker box, a front left loudspeaker, a middle loudspeaker and a front right loudspeaker are respectively arranged at the left, middle and right positions of the front surface of the loudspeaker box, a first directional loudspeaker and a second directional loudspeaker are respectively arranged at the left and right positions of the upper surface of the loudspeaker box, and a third directional loudspeaker and a fourth directional loudspeaker are respectively arranged on the left side surface and the right side surface of the loudspeaker box.

2. The sound system of claim 1, wherein the first directional speaker comprises a first front left directional speaker and a first rear left directional speaker disposed at front left and rear left positions, respectively, of the upper surface of the sound box, and the second directional speaker comprises a first front right directional speaker and a first rear right directional speaker disposed at front right and rear right positions, respectively, of the upper surface of the sound box.

3. The sound system of claim 1, further comprising a first reflector, a second reflector, a third reflector, and a fourth reflector, the first reflector and the second reflector being positioned to the left overhead and the right overhead of the listener, respectively, the first directional speaker being oriented toward the first reflector and reflecting the first sound wave to the left overhead of the listener via the first reflector, the second directional speaker being oriented toward the second reflector and reflecting the second sound wave to the right overhead of the listener via the second reflector; the third reflecting plate and the fourth reflecting plate are respectively arranged on the left side and the right side of the listener, the third directional loudspeaker faces the third reflecting plate and reflects the third sound wave to the left side of the listener through the third reflecting plate, and the fourth directional loudspeaker faces the fourth reflecting plate and reflects the fourth sound wave to the right side of the listener through the fourth reflecting plate.

4. The sound system of claim 3, wherein the first, second, third and fourth reflectors are angularly adjustable.

5. The sound system of claim 3, wherein the first reflector comprises a first top left front reflector and a first top left rear reflector disposed on a top left front side and a top left rear side of the listener, respectively, the second reflector comprises a second top right front reflector and a second top right rear reflector disposed on a top right front side and a top right rear side of the listener, respectively, the third reflector comprises a third left front reflector and a third left rear reflector disposed on a left front side and a left rear side of the listener, respectively, and the fourth reflector comprises a fourth right front reflector and a fourth right rear reflector disposed on a right front side and a right rear side of the listener, respectively.

6. The sound system of claim 1, wherein each directional speaker of the directional speaker assemblies is implemented with a piezoelectric transducer assembly arranged in an array or with electrostatic membrane speakers.

7. The sound system of claim 1, wherein the omni-directional speaker assembly further comprises a bass box disposed in front of the listener.

8. The sound system of claim 7, wherein the bass loudspeaker is located between the front left speaker and the center speaker or between the front right speaker and the center speaker.