阅读说明：本技术 一种会议室吸顶音柱扩声系统 (Ceiling sound column sound amplification system for conference room ) 是由 顾康 于 2021-08-18 设计创作，主要内容包括：本发明公开了一种会议室吸顶音柱扩声系统,包括横向设置于会议室的天花板的线阵列音箱或音柱,所述线阵列音箱或音柱向下发音,会议室内设有若干会议桌,所述会议桌的顶部设有话筒,所述话筒与所述线阵列音箱或音柱错开设置。本发明利用话筒与线阵列音箱或音柱明显的声干涉现象的强指向性来限制扩声范围,让声音避开会议桌上的话筒,使其不把声音传到话筒里,最大程度避免构成回受(啸叫),利用线阵列音箱或音柱的音频干涉效应,把声音阻断在会议桌以外,话筒接受线阵列音箱或音柱的声音很小,大大提高会议室吸顶音柱扩声系统的传声增益,提高线阵列音箱或音柱声压级的作用,发声响亮,发音清晰。(The invention discloses a sound reinforcement system for a ceiling-mounted sound post in a conference room, which comprises a linear array sound box or a sound post transversely arranged on a ceiling of the conference room, wherein the linear array sound box or the sound post pronounces sound downwards, a plurality of conference tables are arranged in the conference room, microphones are arranged at the tops of the conference tables, and the microphones and the linear array sound box or the sound post are arranged in a staggered manner. The invention limits the sound amplification range by using the strong directivity of the obvious sound interference phenomenon of the microphone and the linear array loudspeaker box or the sound column, leads the sound to avoid the microphone on the conference table, leads the sound not to be transmitted into the microphone, avoids forming the return (squeaking) to the maximum extent, blocks the sound outside the conference table by using the audio interference effect of the linear array loudspeaker box or the sound column, leads the sound of the linear array loudspeaker box or the sound column received by the microphone to be very small, greatly improves the sound transmission gain of a ceiling sound column sound amplification system of a conference room, improves the sound pressure level function of the linear array loudspeaker box or the sound column, and has loud sounding and clear pronunciation.)

1. A sound column sound amplifying system is inhaled to meeting room which characterized in that: including transversely setting up in the linear array audio amplifier or the sound column of the ceiling of meeting room, linear array audio amplifier or sound column pronounce downwards, are equipped with a plurality of conference tables in the meeting room, the top of conference table is equipped with the microphone, the microphone with the setting of staggering of linear array audio amplifier or sound column.

2. The sound column amplification system of claim 1, wherein: the top of conference table is equipped with the directional microphone of desktop entirely, the top of conference table is equipped with the directional microphone of entirely.

3. The sound column amplification system of claim 1, wherein: the conference room is internally provided with a stage, the top of the stage is provided with a platform, the top of the platform is provided with a microphone, and the top of the stage is provided with a fully directional microphone for conference opening.

4. The sound column amplification system of claim 3, wherein: and strong omni-directional microphones for performance are arranged between the linear array sound boxes or the sound columns.

5. The sound column amplification system of claim 3, wherein: and a sound column for performance is arranged above the stage.

6. The sound column amplification system of claim 3, wherein: and a sound post for a conference is arranged above the stage.

7. The sound column amplification system of claim 4, wherein: the linear array loudspeaker box or the sound column is obliquely arranged towards the direction of the strong omni-directional microphone for the performance.

8. The sound column amplification system of claim 4, wherein: the distance between the highly omnidirectional microphone for performance and the linear array loudspeaker box or the sound column along the linear direction of the loudspeaker box is 10 cm-300 cm.

9. The sound column amplification system of claim 1, wherein: the sound frequency of the linear array sound box or the sound column is more than 50 Hz.

10. The sound column amplification system of claim 1, wherein: the distance between the conference tables is more than 80 cm.

Technical Field

The invention relates to the technical field of sound reinforcement, in particular to a sound reinforcement system of a sound post on a ceiling of a conference room.

Background

Conventionally, conference sound reinforcement systems have two sound box placement modes: 1. the conventional sound box is used and is placed in any place where listening is convenient in a conference room. 2. The linear drooping of the linear array loudspeaker box or the sound column is fixed on the wall surface. The sound columns are independently placed for use, are approximately perpendicular to the ground and are fixed on the wall surface, or are independently placed, and generally, two strings or two strings are placed in the conference room under the condition that the sound columns are generally placed most. In the prior art conference room public address system shown in fig. 1 and fig. 2, the sound post is placed in a manner close to being perpendicular to the ground, so that the microphone is enclosed in the sound range of the sound post, that is, the sound of the sound post is transmitted to the microphone on the conference table, and the sound of the sound post is easily reflected back, and therefore, the sound of the sound post cannot be amplified. The method is characterized in that a sound transmission gain is set as a parameter index specially for the sound amplification system of the conference room, and the sound transmission gain is used as the most important index of the sound amplification system of the conference room, so that the sound can be easily transmitted into a microphone to form echo sound. Therefore, there is a need for improvements in the prior art to avoid the disadvantages of the prior art.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide a sound reinforcement system of a ceiling sound post in a conference room with good sound reinforcement effect.

The invention is realized by the following technical scheme:

the utility model provides a meeting room ceiling sound column sound amplification system, includes and transversely sets up in the linear array audio amplifier or the sound column of the ceiling of meeting room, linear array audio amplifier or sound column pronounce downwards, is equipped with a plurality of meeting tables in the meeting room, the top of meeting table is equipped with the microphone, the microphone with linear array audio amplifier or sound column setting of staggering.

Further, the top of conference table is equipped with the directional microphone of desktop entirely, the top of conference table is equipped with the directional microphone of entirely.

Further, be equipped with the stage in the meeting room, the top of stage is equipped with the podium, the top of podium is equipped with the microphone, the top of stage is equipped with the omnipotent directional microphone for the conference of opening.

Further, a strong omni-directional microphone for performance is arranged between the linear array loudspeaker boxes or the sound columns.

Furthermore, a sound post for performance is arranged above the stage.

Furthermore, a sound post for a conference is arranged above the stage.

Further, the linear array loudspeaker box or the sound column is obliquely arranged towards the direction of the strong omni-directional microphone for the performance.

Further, the distance between the highly omnidirectional microphone for performance and the linear array loudspeaker box or the sound column along the linear direction of the loudspeaker box is 10 cm-300 cm.

Furthermore, the sound frequency of the linear array sound box or the sound column is more than 50 Hz.

Further, the distance between the conference tables is more than 80 cm.

Compared with the prior art, the invention transversely arranges the linear array loudspeaker box or the sound column through the ceiling of the conference room, the linear array loudspeaker box or the sound column pronounces downwards, the microphone is arranged at the top of the conference table, the microphone and the linear array loudspeaker box or the sound column are arranged in a staggered way, the linear array loudspeaker box or the sound column is used, the strong directivity of the obvious sound interference phenomenon of the linear array loudspeaker box or the sound column is utilized to limit the sound amplification range, the sound is enabled to avoid the microphone on the conference table, the sound is enabled not to be transmitted into the microphone, the formation of back receiving (squealing) is avoided to the maximum extent, the sound interference effect of the linear array loudspeaker box or the sound column is utilized to block the sound outside the conference table, the sound of the linear array loudspeaker box or the sound column received by the microphone is very small, the sound transmission gain of the ceiling-absorbing sound column sound amplification system of the conference room is greatly improved, the sound pressure level of the linear array loudspeaker box or the sound column is improved, the sound is loud, and the pronunciation is clear.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a top view of a prior art conference room sound amplification system;

fig. 2 is a front view of a prior art conference room sound reinforcement system;

fig. 3 is a top view of a first embodiment of a sound amplification system for a ceiling sound column of a conference room according to the present invention;

fig. 4 is a front view of a first embodiment of a ceiling sound column amplification system for a conference room in accordance with the present invention;

fig. 5 is a top view of a second embodiment of the loudspeaker system of a ceiling sound column in a conference room according to the present invention;

fig. 6 is a front view of a second embodiment of a ceiling sound column amplification system for a conference room according to the present invention;

fig. 7 is a top view of a third embodiment of a sound reinforcement system for a ceiling sound column of a conference room according to the present invention;

fig. 8 is a front view of a fourth embodiment of a ceiling sound column amplification system for a conference room in accordance with the present invention;

fig. 9 is a top view of a fifth embodiment of the loudspeaker system of a ceiling sound column in a conference room according to the present invention;

fig. 10 is a front view of a fifth embodiment of a ceiling sound column amplification system for a conference room in accordance with the present invention;

fig. 11 is a front view of a fifth embodiment of the ceiling sound column sound amplification system of the conference room of the present invention, in which the linear array loudspeaker boxes or sound columns are obliquely arranged.

In the figure: 1-a fret; 2-linear array loudspeaker boxes or columns; 3-a conference table; 4-a microphone; 5-a desktop omni-directional microphone; 6-a fully directional microphone; 7-stage; 8-a platform; 9-opening a meeting with a fully directional microphone; 10-a highly omni-directional microphone for performance; 11-a sound post for performance; 12-column for conference.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 and fig. 2, in the prior art conference room sound reinforcement system, the sound post 1 is placed close to perpendicular to the ground, so that the microphone 4 is enclosed in the sound range of the sound post 1, that is, the sound of the sound post 1 is transmitted to the microphone 4 on the conference table, and is easy to be reflected back, therefore, the sound of the sound post 1 cannot be amplified. The method is characterized in that a sound transmission gain is set as a parameter index specially for the sound amplification system of the conference room, and the sound transmission gain is used as the most important index of the sound amplification system of the conference room, so that the sound can be easily transmitted into a microphone to form echo sound.

As shown in fig. 3 to 11, the ceiling-mounted sound column sound reinforcement system for a conference room of the present invention includes a linear array speaker 2 or a sound column 2 transversely disposed on a ceiling of the conference room, the linear array speaker 2 or the sound column 2 pronounces sound downwards, a plurality of conference tables 3 are disposed in the conference room, a microphone 4 is disposed on a top of each conference table 3, and the microphone 4 is disposed in a staggered manner with respect to the linear array speaker 2 or the sound column 2. The ceiling through the meeting room transversely sets up linear array audio amplifier 2 or sound column 2, linear array audio amplifier 2 or sound column 2 pronounce downwards, the top of conference table 3 is equipped with microphone 4, microphone 4 sets up with linear array audio amplifier 2 or sound column 2 stagger, use linear array audio amplifier 2 or sound column 2, utilize the strong directive property of their obvious sound interference phenomenon to restrict the range of amplifying, let sound avoid the microphone 4 on the conference table, make it not pass to microphone 4 in sound, furthest avoids constituting to receive (howl), utilize the audio frequency interference effect of linear array audio amplifier 2 or sound column 2, block sound outside conference table 3, microphone 4 receives linear array audio amplifier 2 or sound column 2's sound very little, improve the transaudient gain of meeting room ceiling sound column amplifying system greatly, improve the effect of linear array audio amplifier 2 or sound column 2 sound pressure level, the sound production is loud, it is clear to pronounce.

The sound frequency of the linear array loudspeaker box 2 or the sound column 2 is more than 50Hz, the frequency with weak low-frequency directivity is avoided, in the concrete implementation, the lower cut moves from 100Hz to 125Hz until the sound is large and satisfactory.

The distance between the conference table is greater than 80cm, and directly over the top of the seat, the linear array loudspeaker box 2 or the sound column 2 is laid on the roof, and the loudspeaker is installed downwards, so that the sound absorption of the microphone 4 at the top of the conference table 3 cannot be influenced.

First embodiment

A conference table 3 is arranged in the conference room, and the linear array loudspeaker boxes 2 or the sound columns 2 are arranged at staggered positions above the conference table 3.

Second embodiment

Two or more conference tables 3 are arranged in the conference room, and the linear array loudspeaker boxes 2 or the sound columns 2 are arranged above the positions between the conference tables 3 and above the outer sides of the conference tables 3.

Third embodiment

The top of conference table 3 is equipped with the directional microphone 5 of desktop entirely, and the top of conference table 3 is equipped with directional microphone 6 entirely, makes things convenient for numerous personnel to use the directional microphone 5 of desktop entirely to meet together.

Fourth embodiment

Be equipped with stage 7 in the meeting room, stage 7's top is equipped with podium 8, and podium 8's top is equipped with microphone 4, and stage 7's top is equipped with to open the meeting with directional microphone 9 entirely, sets up microphone 4 like the top of conference table 3, and meeting line is listed as audio amplifier 2 or sound column 2 sets up the staggered position department in microphone 4 top.

Fifth embodiment

Be equipped with stage 7 in the meeting room, stage 7's top is equipped with podium 8, podium 8's top is equipped with microphone 4, stage 7's top is equipped with division and uses omni-directional microphone 9, top like conference table 3 sets up microphone 4, linear array audio amplifier 2 or sound column 2 set up the position department that staggers in microphone 4 top, be equipped with between linear array audio amplifier 2 or the sound column 2 and carry out with strong omni-directional microphone 10, also can speak in order to let the speaker walk off stage 7, linear array audio amplifier 2 or sound column 2's sound still can avoid microphone 4.

In the specific implementation, a sound column for performance is arranged above the stage 7, so that the performance playing volume of the stage 7 is increased.

In specific implementation, a sound post for a conference is arranged above the stage 7, so that the conference playing volume of the stage 7 is increased.

In the concrete implementation, the linear array loudspeaker box 2 or the sound column 2 is obliquely arranged towards the direction of the highly omnidirectional performing microphone 10, so that the listening effect of the highly omnidirectional performing microphone 10 is improved, and when the distance between the linear array loudspeaker box 2 or the sound column 2 and the highly omnidirectional performing microphone 10 is prevented from being larger, the effect is more obvious.

In a specific embodiment, the distance between the highly omnidirectional microphone 10 for performance and the linear array loudspeaker 2 or the sound column 2 along the linear direction of the loudspeaker is 10cm to 300cm, thereby improving the listening effect of the highly omnidirectional microphone 10 for performance.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.