CN217849685U

CN217849685U - Take long-range microphone of making an uproar pickup of falling of omnidirectional microphone array

Info

Publication number: CN217849685U
Application number: CN202221611590.8U
Authority: CN
Inventors: 蔡辉
Original assignee: Shenzhen Zhihuichuang Technology Co ltd
Current assignee: Shenzhen Zhihuichuang Technology Co ltd
Priority date: 2022-06-23
Filing date: 2022-06-23
Publication date: 2022-11-18
Anticipated expiration: 2032-06-23

Abstract

The utility model relates to the technical field of audio playing, in particular to a remote noise-reducing and pickup loudspeaker with an omnidirectional microphone array, which comprises a shell, a loudspeaker and a microphone in the shell, wherein a rechargeable battery and a mainboard are also arranged in the shell, and an audio processor, a Bluetooth module, an audio wireless transceiver module and a memory are arranged on the mainboard; the shell is also provided with a USB interface, a LINE input/output port, an LED indicator light and a plurality of keys which are electrically connected with the mainboard; the USB interface is also electrically connected with the rechargeable battery. The utility model adopts a plurality of omnidirectional MEMS microphones, and is matched with a processor which is internally provided with an ANC active noise reduction algorithm and an LMS self-adaptive filtering noise reduction algorithm to carry out double noise reduction on the played and collected sound, thereby realizing the function of remote noise reduction and pickup; the SONAH sound source positioning algorithm is used for positioning a sound source and is matched with a sound source positioning indication to realize the display of the source direction of the sound source; meanwhile, the Bluetooth module, the audio wireless transceiving module and the memory are arranged in the mobile phone, and the mobile phone can be used for connecting a mobile phone to play audio, receiving wireless audio signals and being used as a recorder.

Description

Microphone with omnidirectional microphone array for remotely reducing noise and picking up sound

Technical Field

The utility model relates to audio playback technical field, concretely relates to take microphone array of qxcomm technology remote noise reduction pickup's megaphone.

Background

The existing indoor loudspeaker is usually carried out by adopting a loudspeaker similar to a bee, meanwhile, in the loudspeaker, the loudspeaker and a microphone are usually accompanied, but the distance between a user and the microphone cannot be too original when the microphone picks up sound, and noise reduction is not carried out in the process of amplifying the loudspeaker after picking up sound, so that the loudspeaker is not suitable in some meeting occasions, live webcast, teaching and other scenes, and howling, current noise and the like can be possibly generated to influence the use experience; meanwhile, the loudspeaker is usually only a loudspeaker, and cannot be connected with a mobile phone through Bluetooth to realize a call function and cannot be used as a recording microphone.

SUMMERY OF THE UTILITY MODEL

In order to solve the above prior art not enough, the utility model aims to provide a take microphone array of qxcomm technology remote noise reduction pickup's megaphone has the distance and falls the pickup function of making an uproar, and the connectable bluetooth carries out the audio playback simultaneously to and use as the recording microphone.

The utility model adopts the technical scheme as follows: a loudspeaker with an omnidirectional microphone array for remote noise reduction and pickup comprises a shell, a loudspeaker and a microphone in the shell, wherein a rechargeable battery and a mainboard are further arranged in the shell, an audio processor, a Bluetooth module and a memory are mounted on the mainboard, and the mainboard is further connected with an audio wireless transceiver module; the shell is also provided with a USB interface, a LINE input/output port, an LED indicator light and a plurality of keys which are electrically connected with the mainboard; the USB interface is also electrically connected with the rechargeable battery.

Preferably, the housing comprises an upper shell, a middle shell and a lower shell of aluminum alloy; the loudspeaker, the microphone, the rechargeable battery, the mainboard, the audio processor arranged on the mainboard, the Bluetooth module, the memory and the audio wireless transceiver module are arranged in a cavity formed by the middle shell and the lower shell; the answering key, the volume increasing control key, the volume decreasing control key, the pause/play key and the mute key are arranged in a cavity between the upper shell and the middle shell.

Furthermore, the microphones are a plurality of omnidirectional MEMS microphones which are respectively arranged in different directions in the shell; preferably, an MSM261D3526Z1CM omni-directional MEMS microphone may be employed.

Further, the rechargeable battery is a 2-section 18650 lithium battery; the USB interface adopts a standard TYPE-C connector and can charge the rechargeable battery.

Further, the bluetooth module adopts BP10 series bluetooth.

Furthermore, the audio processor is a Dual-core ARM-A7 processor unit, and it is worth explaining that a voice noise reduction algorithm and a sound source positioning algorithm are recorded in the audio processor; preferably, the voice noise reduction algorithm adopts an ANC active noise reduction algorithm and an LMS adaptive filtering noise reduction algorithm, and the sound source positioning algorithm adopts an SONAH algorithm.

Furthermore, the keys comprise a power key, a Bluetooth pairing key, an answering key, a volume increasing control key, a volume reducing control key, a pause/play key and an audio mute key.

Further, the LED indicator lamps comprise a power-on/charging indicator lamp, a Bluetooth pairing indicator lamp, a Bluetooth access indicator lamp, a USB access indicator lamp, an earphone access indicator lamp and an operation state indicator lamp which is annularly arranged.

Preferably, foam with different specifications can be arranged in the shell for sealing the whole shell, and the functions of buffering impact among parts and reducing electrostatic influence are achieved.

It is worth to be noted that the starting/charging indicator light is electrically connected with the power key, and the starting/charging indicator light can perform light-on or light-off reaction on the key operation of the power key; the Bluetooth pairing indicator lamp can perform a light-on or light-off reaction on the operation of the Bluetooth pairing key; the Bluetooth access indicator lamp makes a light-on or light-off reaction when the Bluetooth is accessed; the USB access indicator lamp makes a light-on or light-off reaction when the USB is accessed; the earphone access indicator lamp makes a light-on or light-off reaction when the earphone is accessed; the operation state indicator lamp arranged in the ring shape is also electrically connected with the answering key, the volume increasing control key, the volume reducing control key and the pause/play key arranged in the ring shape, and when the answering key, the volume increasing control key, the volume reducing control key, the pause/play key and the mute key are operated correspondingly, the operation state indicator lamp can carry out light-on or light-off reaction.

The operation state indicating lamps arranged in the annular shape are electrically connected with the microphones in different directions in the shell, and when the microphones collect voice signals, the operation state indicating lamps can be lighted to only the source direction of the sound source signals.

Has the advantages that:

the utility model provides a take megaphone of long-distance noise reduction pickup of omnidirectional microphone array adopts a plurality of omnidirectional type MEMS microphones, and the cooperation embeds the treater that has ANC initiative noise reduction algorithm and LMS self-adaptation filtering noise reduction algorithm and carries out dual noise reduction to the sound of broadcast and collection, realizes the function of long-distance noise reduction pickup; the SONAH sound source positioning algorithm is used for positioning a sound source and is matched with a sound source positioning indicator lamp to realize the display of the source direction of the sound source; meanwhile, a Bluetooth module, an audio wireless transceiving module and a memory are arranged in the mobile phone, and the mobile phone can be used for connecting a mobile phone to play audio, receiving wireless audio signals and being used as a recorder.

Drawings

Fig. 1 is an exploded view 1 of a loudspeaker with an omnidirectional microphone array for remote noise reduction and pickup according to the present invention;

fig. 2 is an exploded view of a loudspeaker with an omnidirectional microphone array for remote noise reduction and pickup of the present invention 2;

fig. 3 is a perspective view of the microphone of the present invention with an omnidirectional microphone array for remote noise reduction and pickup;

fig. 4 is a top view of the remote noise reduction and pickup loudspeaker with omnidirectional microphone array of the present invention;

fig. 5 is a front view of the microphone of the present invention with omnidirectional microphone array for remote noise reduction and pickup;

fig. 6 is a rear view of a microphone with omnidirectional microphone array for remote noise reduction and pickup of the present invention;

wherein, fig. 1 and fig. 2 constitute a complete explosion diagram of the loudspeaker with omnidirectional microphone array for remote noise reduction and pickup;

wherein: 11-upper shell, 12-middle shell, 13-lower shell, 131-rubber mat, 2-loudspeaker, 3-microphone, 4-rechargeable battery, 5-mainboard, 6-audio wireless transceiver module, 7-USB interface, 8-LINE input/output port, 91-power-on/charging indicator light, 92-Bluetooth pairing indicator light, 93-Bluetooth access indicator light, 94-USB access indicator light, 95-earphone access indicator light, 96-operation indicator light, 100-touch key PCB board, 101-power key, 102-Bluetooth pairing key, 103-answer key, 104-volume increase control key, 105-volume decrease control key, 106-pause/play key, 107-mute key, 108-touch lens and A-foam.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by a person skilled in the art based on the embodiments of the present invention belong to the protection scope of the present invention.

Fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, and fig. 6 show a microphone with an omnidirectional microphone array for remote noise reduction and pickup, which includes a circular housing, wherein the housing includes: an upper shell 11, a middle shell 12 and a lower shell 13 with hollow-out middle parts; the loudspeaker 2, the microphone 3 and the audio wireless transceiver module 6 are arranged in the shell body formed by the middle shell 12 and the lower shell 13, and the rechargeable battery 4 and the mainboard 5 are arranged in the shell body. An audio processor, a Bluetooth module and a memory which are integrally installed on the mainboard 5 are integrated, and a USB interface 7 and a LINE input/output port 8 which are electrically connected with the mainboard are installed on the shell of the middle shell 12; a power-on/charging indicator lamp 91 and a bluetooth pairing indicator lamp 92 on the shell of the middle shell 12; a power key 101 and a Bluetooth pairing key 102 on the shell of the middle shell 12. A touch key PCB board 100 is further disposed between the upper case 11 and the middle case 12, and the touch key PCB board 100 is further connected to the main board 5 through a flexible circuit board. The touch key PCB board 100 serves to connect and acquire signals of the answer key 103, the volume up control key 104, the volume down control key 105, the pause/play key 106, and the mute key 107.

In this embodiment, the hollow part of the upper housing 11 with the hollow middle is further provided with a touch lens 108, and the answer key 103, the volume-up control key 104, the volume-down control key 105, the pause/play key 106 and the mute key 107 are arranged on the touch lens 108; the bluetooth access indicator lamp 93, the USB access indicator lamp 94, the headphone access indicator lamp 95, and the annularly arranged operation state indicator lamps 96 are provided on the touch lens 108.

In this embodiment, a rubber pad 131 is further disposed on the lower case 13.

In this embodiment, still be provided with a plurality of bubbles cotton A in the casing for sealed whole casing has the effect that slows down the impact between the spare part and reduce static influence simultaneously.

In this embodiment, the microphone 3 is 2 sets of MIC components, each set has 2 MSM261D3526Z1CM omnidirectional MEMS microphones, and the microphones are installed in different directions in the housing at equal intervals to realize the function of omnidirectional pickup.

In this embodiment, the rechargeable battery 4 is a 2-pack 18650 lithium battery, and the USB interface 7 adopts a standard TYPE-C connector, which can charge the rechargeable battery 4; the audio processor is a Dual-core ARM-A7 processor unit, and it should be noted that a voice noise reduction algorithm and a sound source localization algorithm are built in the audio processor, wherein: the voice noise reduction algorithm adopts an ANC active noise reduction algorithm and an LMS self-adaptive filtering noise reduction algorithm, and the sound source positioning algorithm adopts an SONAH algorithm to realize a noise reduction function and a sound source positioning function.

When the loudspeaker with the omnidirectional microphone array for long-distance noise reduction and pickup is used, the loudspeaker can be commonly used for recording; audio, including stored audio and audio signals acquired through the audio radio 6, may also be played directly through the pause/play key 106; the mobile phone can also play the audio frequency of the mobile phone and answer the call by connecting the Bluetooth of the mobile phone; the real-time voice playing can be realized through the microphone 3, and the microphone 3 collects voice signals, performs noise reduction processing and plays the voice signals through the loudspeaker 2; finally, other devices can be connected through the LINE input/output port 8 for playing. While the USB interface 7 can charge the rechargeable battery 4.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and all modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides a take remote megaphone of making an uproar pickup of falling of omnidirectional microphone array, includes loudspeaker and microphone in casing, the casing, its characterized in that: the shell is also internally provided with a rechargeable battery and a mainboard, the mainboard is provided with an audio processor, a Bluetooth module and a memory, and the mainboard is also connected with an audio wireless transceiver module; the shell is also provided with a USB interface, a LINE input/output port, an LED indicator light and a plurality of keys which are electrically connected with the mainboard; the USB interface is also electrically connected with the rechargeable battery.

2. The loudspeaker of claim 1 with omnidirectional microphone array remote noise reduction pickup, characterized by: the microphones are a plurality of omnidirectional MEMS microphones which are respectively arranged in different directions in the shell.

3. The loudspeaker of claim 1 with omnidirectional microphone array remote noise reduction pickup, characterized by: the rechargeable battery is a 2-section 18650 lithium battery.

4. The microphone of claim 1, wherein the omnidirectional microphone array is configured to provide a long-distance noise reduction and pickup function, and wherein: the audio processor is a Dual-core ARM-A7 processor unit.

5. The loudspeaker of claim 1 with omnidirectional microphone array remote noise reduction pickup, characterized by: the Bluetooth module adopts BP10 series Bluetooth.

6. The loudspeaker of claim 1 with omnidirectional microphone array remote noise reduction pickup, characterized by: the USB interface adopts standard TYPE-C connector, can charge rechargeable battery.

7. The loudspeaker of claim 1 with omnidirectional microphone array remote noise reduction pickup, characterized by: the keys comprise a power key, a Bluetooth pairing key, an answering key, a volume increasing control key, a volume decreasing control key, a pause/play key and an audio mute key.

8. The loudspeaker of claim 1 with omnidirectional microphone array remote noise reduction pickup, characterized by: the LED indicator lamp comprises a starting/charging indicator lamp, a Bluetooth pairing indicator lamp, a Bluetooth access indicator lamp, a USB access indicator lamp, an earphone access indicator lamp and an operation state indicator lamp which is annularly arranged.