CN209787419U

CN209787419U - sound system

Info

Publication number: CN209787419U
Application number: CN201920503753.2U
Authority: CN
Inventors: 邓伟; 凌云; 肖仲; 黄裕佳; 范苑
Original assignee: Guangzhou Kugou Computer Technology Co Ltd
Current assignee: Guangzhou Kugou Computer Technology Co Ltd
Priority date: 2019-04-12
Filing date: 2019-04-12
Publication date: 2019-12-13
Anticipated expiration: 2029-04-12

Abstract

The utility model discloses a sound system belongs to the electronic equipment field. The sound system comprises an audio concentrator and at least one sound box, wherein the audio concentrator comprises a connecting module, at least one digital signal converter, a digital signal modulator, a first transmitting module and a first power supply module. The connecting module comprises at least one digital interface corresponding to at least one digital signal converter one by one and an analog interface corresponding to the digital signal modulator. The utility model discloses in, because connection module includes at least one digital interface and analog interface to guarantee that audio concentrator supports the audio information who acquires a plurality of formats, thereby solved sound system's the single problem of audio information input interface. Because the audio concentrator comprises the first sending module which is in wireless connection with at least one sound box, the obtained digital audio information in the second format can be sent through the first sending module and received through the at least one sound box, and therefore the problem that the sound boxes cannot be placed at will is avoided.

Description

Sound system

Technical Field

The utility model relates to an electronic equipment field, in particular to sound system.

Background

The sound system is mainly used for playing audio information output by sound source equipment, and the participation of the sound system is needed no matter listening to music or enjoying audio and video. Traditional sound system mainly includes the audio amplifier, and the audio amplifier includes power amplifier and loudspeaker, and the audio information of sound source equipment output passes through the connecting wire and inputs to power amplifier to broadcast through loudspeaker. Wherein, the audio amplifier includes left sound channel audio amplifier and right sound channel audio amplifier, and left sound channel audio amplifier and right sound channel audio amplifier wired connection.

However, since the audio information input interface of the conventional sound system is single, only the audio information of the digital signal can be supported, or only the audio information of the analog signal can be supported, so that when there are multiple sound source devices simultaneously, and the audio information output by the multiple sound source devices includes the audio information of the digital signal and the audio information of the analog signal, two sound systems having different audio information input interfaces need to be provided. In addition. Because right track audio amplifier and right track audio amplifier wired connection lead to can not putting left track audio amplifier and right track audio amplifier at will.

SUMMERY OF THE UTILITY MODEL

The utility model provides a sound system can solve audio information input interface singleness to and the problem that the audio amplifier can not be put at will. The technical scheme is as follows:

The utility model provides a sound system, the sound system includes audio frequency concentrator and at least one audio amplifier, the audio frequency concentrator includes connection module, at least one digital signal converter, digital signal modulator, first transmission module and first power module;

the connecting module comprises at least one digital interface in one-to-one correspondence with the at least one digital signal converter and an analog interface in correspondence with the digital signal modulator;

The input end of the at least one digital signal converter is connected with the corresponding digital interface, the input end of the digital signal modulator is connected with the analog interface, the output end of the at least one digital signal converter and the output end of the digital signal modulator are connected with the input end of the first transmitting module, the first transmitting module is wirelessly connected with the at least one sound box, and the first power supply module is connected with the connecting module, the at least one digital signal converter, the analog signal modulator and the first transmitting module;

the at least one digital signal converter is used for performing format conversion on digital audio information in a first format acquired from a corresponding digital interface to obtain digital audio information in a second format, the digital signal modulator is used for performing analog-to-digital conversion on first analog audio information acquired from the analog interface to obtain digital audio information in the second format, the first transmitting module is used for transmitting the digital audio information in the second format acquired by any one digital signal converter or the digital signal modulator, and the at least one sound box is used for receiving the digital audio information in the second format and playing the received digital audio information.

Optionally, the audio hub further includes a bluetooth module, an output end of the bluetooth module is connected to an input end of the first transmitting module, and the bluetooth module is configured to perform format conversion on the acquired digital audio information in the first format to obtain digital audio information in the second format when the any digital signal converter or the digital signal modulator does not transmit the digital audio information in the second format to the first transmitting module.

optionally, the audio hub further comprises an MCU (Micro controller Unit), a control switch and a first operation panel;

The control end of the MCU is connected with the first operation panel, the first output end of the MCU is connected with the control end of the control switch, the control switch is provided with a plurality of input ends which are equal to the total number of the at least one digital signal converter, the digital signal modulator and the Bluetooth module and correspond to one another one by one, the output end of the at least one digital signal converter, the output end of the Bluetooth module and the output end of the digital signal modulator are respectively connected with the corresponding input ends of the control switch, and the output end of the control switch is connected with the input end of the first transmitting module;

the first operation panel is used for obtaining a first operation instruction of a user, and the MCU is used for controlling the control switch to conduct any one of the at least one digital signal converter and the first transmission module, or conduct the Bluetooth module and the first transmission module, or conduct the digital signal modulator and the first transmission module based on the first operation instruction.

optionally, the sound system further includes a music player, where the music player includes a Central Processing Unit (CPU), a second operation panel, a storage module, a second transmitting module, and a second power module;

The control end of the CPU is connected with the second operation panel, the CPU is connected with the storage module, the first output end of the CPU is connected with the input end of the second transmitting module, the second transmitting module is wirelessly connected with the at least one sound box, and the second power supply module is respectively connected with the CPU, the second operation panel, the storage module and the second transmitting module;

The second operation panel is configured to obtain a second operation instruction of a user, the CPU is configured to obtain the digital audio information in the first format stored in the storage module based on the second operation instruction, process the obtained digital audio information in the first format to obtain the digital audio information in the second format, and transmit the digital audio information in the second format to the second transmitting module, the second transmitting module is configured to transmit the digital audio information in the second format obtained by the processing of the CPU when the first transmitting module does not transmit the digital audio information in the second format, and the at least one sound box is configured to receive the digital audio information in the second format and play the received digital audio information.

Optionally, the music player further includes a first communication module, the second power module is connected to the first communication module, and a signal end of the first communication module is connected to a signal end of the CPU;

The CPU is used for acquiring the digital audio information in the first format through the first communication module and storing the digital audio information in the first format in the storage module.

optionally, when the audio hub further includes an MCU, the audio hub further includes a second communication module, the second communication module is wirelessly connected to the first communication module, a signal end of the second communication module is connected to a signal end of the MCU, and a second output end of the MCU is connected to the first transmitting module;

The CPU is used for transmitting a control instruction to the MCU when the second transmitting module transmits the digital audio information in the second format so as to control the first transmitting module to be closed, or controlling the second transmitting module to be closed when an information transmitting message transmitted by the MCU is acquired, wherein the information transmitting message is used for indicating the first transmitting module to transmit the digital audio information in the second format.

Optionally, each sound box of the at least one sound box includes a receiving module, a digital-to-analog conversion module, a power amplifier, a speaker, and a third power module;

the receiving module is wirelessly connected with the first transmitting module, the output end of the receiving module is connected with the input end of the digital-to-analog conversion module, the output end of the digital-to-analog conversion module is connected with the input end of the power amplifier, the output end of the power amplifier is connected with the horn, and the third power supply module is respectively connected with the receiving module, the digital-to-analog conversion module and the power amplifier;

The receiving module is used for receiving the digital audio information in the second format transmitted by the first transmitting module, the digital-to-analog conversion module is used for performing digital-to-analog conversion on the digital audio information in the second format received by the receiving module (21) to obtain second analog audio information, the power amplifier is used for performing power amplification on the second analog audio information, and the loudspeaker is used for playing the second analog audio information after the power amplification.

Optionally, each speaker further includes a frequency division processing module and a volume processing module, and the frequency division processing module and the volume processing module are sequentially connected in series between the receiving module and the digital-to-analog conversion module.

Optionally, the Digital audio information in the second format is PCM (Pulse Code Modulation) audio information or DSD (Direct Stream Digital) audio information.

in a second aspect, the present invention provides a sound system, the sound system includes a music player and at least one sound box, the music player includes a CPU, a second operation panel, a storage module, a second transmitting module and a second power module;

the second operation panel is used for obtaining a second operation instruction of a user, the CPU is used for obtaining the digital audio information in the first format stored in the storage module based on the second operation instruction, processing the obtained digital audio information in the first format to obtain the digital audio information in the second format, the second transmitting module is used for transmitting the digital audio information in the second format obtained by the processing of the CPU, and the at least one sound box is used for receiving the digital audio information in the second format and playing the received digital audio information.

The utility model provides a technical scheme's beneficial effect includes at least:

The utility model discloses in, because the connection module that the audio concentrator includes at least one digital interface and analog interface to guarantee that the audio concentrator supports the audio information who acquires a plurality of formats, thereby avoided sound system's the single problem of audio information input interface. And selecting one interface matched with the format of the audio information to be played from at least one digital interface and at least one analog interface, and acquiring the audio information to be played through the selected interface. Because each interface corresponds to a digital signal converter or a digital signal modulator, the format of the acquired audio information to be played can be converted through the digital signal converter or the digital signal modulator corresponding to the selected interface, and the digital audio information in the second format is obtained. Because the audio concentrator comprises the first sending module which is in wireless connection with the at least one sound box, the obtained digital audio information in the second format can be sent through the first sending module, so that the at least one sound box can receive the digital audio information in the second format and play the received digital audio information in the second format, and the problem that the at least one sound box cannot be placed at will is avoided.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments 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 it is obvious for those skilled in the art to obtain other drawings without creative efforts.

fig. 1 is a schematic structural diagram of an audio system according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of another sound system provided in the embodiment of the present invention;

fig. 3 is a schematic structural diagram of another sound system provided in the embodiment of the present invention;

fig. 4 is a schematic structural diagram of another sound system according to an embodiment of the present invention.

reference numerals:

1: an audio hub; 101: a connection module; 102: a digital signal converter; 103: a digital signal modulator; 104: a first transmitting module; 105: a first power supply module; 106: a Bluetooth module; 107: MCU; 108: a control switch; 109: a first operation panel; 110: a second communication module;

2: a sound box; 21: a receiving module; 22: a digital-to-analog conversion module; 23: a power amplifier; 24: a horn; 25: a third power supply module; 26: a frequency division processing module; 27: a volume processing module;

3: a music player; 31: a CPU; 32: a second operation panel; 33: a storage module; 34: a second transmitting module; 35: a second power supply module; 36: a first communication module.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

fig. 1 illustrates a schematic structural diagram of an audio system according to an embodiment of the present invention. As shown in fig. 1, the sound system includes an audio hub 1 and at least one speaker 2, the audio hub 1 includes a connection module 101, at least one digital signal converter 102, a digital signal modulator 103, a first transmission module 104, and a first power module 105, and the connection module 101 includes at least one digital interface corresponding to the at least one digital signal converter 102, and an analog interface corresponding to the digital signal modulator 103. The input end of at least one digital signal converter 102 is connected with the corresponding digital interface, the input end of the digital signal modulator 103 is connected with the analog interface, the output end of at least one digital signal converter 102 and the output end of the digital signal modulator 103 are connected with the input end of the first transmitting module 104, the first transmitting module 104 is wirelessly connected with at least one sound box 2, and the first power supply module 105 is connected with the connecting module 101, at least one digital signal converter 102, the digital signal modulator 103 and the first transmitting module 104.

The at least one digital signal converter 102 is configured to perform format conversion on digital audio information in a first format acquired from a corresponding digital interface to obtain digital audio information in a second format, the digital signal modulator 103 is configured to perform analog-to-digital conversion on first analog audio information acquired from an analog interface to obtain digital audio information in the second format, the first transmitting module 104 is configured to transmit digital audio information in the second format converted by any one of the digital signal converters 102 or the digital signal modulator 103, and the at least one sound box 2 is configured to receive digital audio information in the second format and play the received digital audio information.

the embodiment of the present invention provides an embodiment, because the connection module 101 that the audio concentrator 1 includes at least one digital interface and analog interface, thereby guarantee that the audio concentrator 1 supports the audio information who acquires a plurality of formats, thereby solved and set up a plurality of sound systems's problem to different sound source equipment. And selecting one interface matched with the format of the audio information to be played from at least one digital interface and at least one analog interface, and acquiring the audio information to be played through the selected interface. Because each interface corresponds to one digital signal converter 102 or digital signal modulator 103, the format of the acquired audio information to be played can be converted by the digital signal converter 102 or digital signal modulator 103 corresponding to the selected interface, so as to obtain digital audio information in a second format. Because the audio concentrator 1 includes the first transmitting module wirelessly connected to the at least one speaker 2, the obtained digital audio information in the second format can be transmitted through the first transmitting module 104, so that the at least one speaker 2 can receive the digital audio information in the second format and play the received digital audio information in the second format, thereby avoiding the problem that the at least one speaker 2 cannot be placed at will.

the audio information to be played may be digital audio information in a first format, or may be first analog audio information. For example, when the audio information to be played is transmitted through a coaxial cable, an optical fiber, an HDMI (High Definition multimedia interface) and a USB (Universal Serial Bus), the transmitted audio information to be played is digital audio information in a first format. When the audio information to be played is transmitted through RCA (Radio Corporation of American, lotus socket) and auxiary audio input interface, etc., the transmitted audio information to be played is the first analog audio information. Thus, the at least one digital interface included in the connection module 101 may be at least one of a coaxial interface, an optical fiber interface, an HDMI interface, and a USB interface, and the analog interface may be an RCA interface or an audio input interface.

The at least one digital signal converter 102 may include a USB audio converter for converting audio information transmitted through a USB interface, a digital audio fiber receiving chip for converting audio information transmitted through a fiber interface, and the like, and the digital signal modulator 103 may be a PCM modulator, so that the obtained digital audio information in the second format may be PCM audio information. Of course, the obtained digital audio information in the second format may also be digital audio information in other formats, for example, when the digital signal modulator 103 is a DSD modulator, the obtained digital audio information in the second format may be DSD audio information.

In the embodiment of the present invention, as shown in fig. 1, the audio hub 1 may further include a bluetooth module 106, an output end of the bluetooth module 106 is connected to an input end of the first transmitting module 104, and the bluetooth module 106 is connected to the first power module 105.

the bluetooth module 106 is configured to perform format conversion on the acquired digital audio information in the first format to obtain digital audio information in a second format when at least one of the digital signal converter 102 or the digital signal modulator 103 does not transmit the digital audio information in the second format to the first transmitting module 104.

Based on the above setting, firstly, bluetooth connection between the bluetooth module 106 and the sound source device is established, and then when the sound source device transmits digital audio information in the first format to be played, the bluetooth module 106 may acquire the digital audio information in the first format, and when at least one digital signal converter 102 or digital signal modulator 103 does not transmit the digital audio information in the second format to the first transmitting module 104, format-convert the digital audio information in the first format to obtain digital audio information in the second format, and transmit the converted digital audio information in the second format to the first transmitting module 104 to be transmitted through the first transmitting module 104, thereby preventing the bluetooth module 106, any digital signal converter 102, and digital signal modulator 103 from simultaneously transmitting the digital audio information in the second format to the first transmitting module 104.

The bluetooth module 106 may be integrated with the digital signal converter 102, so that when the bluetooth module 106 acquires the digital audio information in the first format transmitted by the sound source device, the format of the digital audio information in the first format may be converted, so as to ensure that the digital audio information in the first format acquired by the bluetooth module 106 can be subsequently played through the at least one speaker 2.

In the implementation of the present invention, as shown in fig. 2, the audio hub 1 may further include an MCU107, a control switch 108 and a first operation panel 109. The control end of the MCU107 is connected to the first operation panel 109, the first output end of the MCU107 is connected to the control end of the control switch 108, the control switch 108 is provided with a plurality of input ends corresponding to the at least one digital signal converter 102, the total number of the digital signal modulators 103 and the bluetooth modules 106 is equal, the plurality of input ends correspond to one another, the output end of the at least one digital signal converter 102, the output end of the bluetooth module 106 and the output end of the digital signal modulator 103 are connected to the corresponding input ends of the control switch 108, the output end of the control switch 108 is connected to the input end of the first transmitting module 104, the MCU107, the control switch 108 and the first operation panel 109 are connected to the first power module 105.

the first operation panel is configured to obtain a first operation instruction of a user, and the MCU107 is configured to control the switch 108 to connect any one of the at least one digital signal converter 102 and the first transmitting module 104, or connect the bluetooth module 106 and the first transmitting module 104, or connect the digital signal modulator 103 and the first transmitting module 104 based on the first operation instruction.

Based on the above arrangement, at least one of the digital interface, the analog interface and the bluetooth module 106 included in the connection module 101 can be simultaneously and respectively connected with the audio output interfaces of the corresponding audio source devices, when a user needs to play the audio information to be played output by a certain sound source device, only the first operation panel needs to be operated, to control the control switch 108 through the MCU107, to turn on the digital signal converter 102 and the first transmitting module 104 corresponding to the digital interface connected to the audio source device, or the digital signal modulator 103 and the first transmitting module 104 corresponding to the analog interface connected to the audio source device are turned on, or the bluetooth module 106 connected to the audio source device is connected to the first transmitting module 104, therefore, the digital audio information in the second format obtained by converting the audio information to be played output by the sound source equipment is transmitted through the first transmitting module 104.

The first operation panel may include a display interface and an operation interface, the user may perform an operation through the operation interface based on content displayed on the display interface, and after the operation interface obtains a first operation instruction of the user, the operation interface may transmit the first operation instruction to the MCU 107. Of course, the first operation panel may be a touch panel or the like.

in the embodiment of the present invention, as shown in fig. 3, the sound system may further include a music player 3, and the music player 3 includes a CPU31, a second operation panel 32, a storage module 33, a second transmitting module 34, and a second power module 35. The control end of the CPU31 is connected to the second operation panel 32, the CPU31 is connected to the storage module 33, the first output end of the CPU31 is connected to the input end of the second transmitting module 34, the second transmitting module 34 is wirelessly connected to at least one speaker 2, and the second power module 35 is connected to the CPU31, the second operation panel 32, the storage module 33, and the second transmitting module 34, respectively.

The second operation panel 32 is configured to obtain a second operation instruction of the user, the CPU31 is configured to obtain the digital audio information in the first format stored in the storage module 33 based on the second operation instruction, process the obtained digital audio information in the first format to obtain the digital audio information in the second format, and the second transmitting module 34 is configured to transmit the digital audio information in the second format processed by the CPU31 when the digital audio information in the second format is not transmitted by the first transmitting module 104.

based on the above arrangement, when the second power module 35 supplies power to the CPU31, the second operation panel 32, the storage module 33 and the second transmission module 34, the user can operate the second operation panel 32 to obtain the second operation instruction of the user through the second operation panel 32 and transmit the second operation instruction to the CPU 31. The CPU31 obtains the digital audio information in the first format to be played from the storage module 33 based on the received operation instruction, processes the obtained digital audio information in the first format to obtain digital audio information in the second format, transmits the processed digital audio information in the second format to the second transmitting module, and transmits the digital audio information in the second format through the second transmitting module 34 when the first transmitting module 104 does not transmit the digital audio information in the second format, so that at least one sound box 2 can receive and play the digital audio information in the second format.

The second operation panel may include a display interface and an operation interface, the user may perform an operation through the operation interface based on the content displayed on the display interface, and after the operation interface obtains a second operation instruction of the user, the operation interface may transmit the second operation instruction to the CPU 31. Of course, the second operation panel may be a touch panel or the like. The storage module 33 may be a ROM (read only Memory), and the second transmitting module 34 may transmit the digital audio information in the second format when the first transmitting module 104 does not transmit the digital audio information in the second format, so that the first transmitting module 104 and the second transmitting module 34 can be prevented from being in a state of transmitting the digital audio information in the second format at the same time.

Further, as shown in fig. 3, the music player 3 may further include a first communication module 36, the second power module 35 is connected to the first communication module 36, a signal terminal of the first communication module 36 is connected to a signal terminal of the CPU31, and the CPU31 is configured to obtain the digital audio information in the first format through the first communication module 36 and store the digital audio information in the first format in the storage module 33.

Based on the above arrangement, the network connection between the first communication module 36 and the audio source device may be pre-established, so as to transmit the digital audio information in the first format output by the audio source device to the CPU31 through the established network, and the CPU31 may pre-buffer the digital audio information in the first format in the storage module 33. The playing process of the music player 3 for the digital audio information in the first format may be as described above, and the embodiment of the present invention is not repeated herein.

The first communication module 36 may be a router or a WIFI (Wireless-Fidelity, Wireless Fidelity) module, and the storage module 33 may be a RAM (Random Access Memory).

In the embodiment of the present invention, as shown in fig. 3, when the audio hub 1 further includes the MCU107, the audio hub 1 may further include the second communication module 110, the second communication module 110 is wirelessly connected to the first communication module 36, the signal terminal of the second communication module 110 is connected to the signal terminal of the MCU107, the second communication module 110 is connected to the first power module 105, and the second output terminal of the MCU107 is connected to the first transmitting module 104.

The CPU31 is configured to transmit a control instruction to the MCU107 to control the first transmitting module 104 to turn off when the second transmitting module 34 transmits digital audio information in the second format, or control the second transmitting module 34 to turn off when an information transmission message transmitted by the MCU107 is acquired, where the information transmission message is used to indicate that the first transmitting module 104 has transmitted digital audio information in the second format. Therefore, the audio concentrator 1 and the music player 3 can be prevented from simultaneously transmitting the digital audio information in the second format, manual operation is reduced, and the experience effect of a user is improved.

The second communication module 110 may be the same as the first communication module 36, as long as the first communication module 36 and the second communication module 110 can be wirelessly connected and can transmit signals.

It should be noted that, after the first communication module 36 and the second communication module 110 are wirelessly connected, the second operation instruction for controlling sent by the second operation panel 32 received by the CPU31 may be transmitted to the MCU107, that is, the audio hub 1 may be remotely controlled through the second operation panel 32 included in the music player 3. Or the first operation instruction sent by the first operation panel 109 received by the MCU107 may be transmitted to the CPU31, that is, the music player 3 may be remotely controlled through the first operation panel 109 included in the audio hub 1.

In the embodiment of the present invention, as shown in fig. 1, 2 or 3, each speaker 2 of at least one speaker 2 may include a receiving module 21, a digital-to-analog conversion module 22, a power amplifier 23, a speaker 24 and a third power module 25. The receiving module 21 is wirelessly connected with the transmitting module, the output end of the receiving module 21 is connected with the input end of the digital-to-analog conversion module 22, the output end of the digital-to-analog conversion module 22 is connected with the input end of the power amplifier 23, the output end of the power amplifier 23 is connected with the loudspeaker 24, and the third power supply module 25 is respectively connected with the receiving module 21, the digital-to-analog conversion module 22 and the power amplifier 23.

The receiving module 21 is configured to receive digital audio information in the second format transmitted by the first transmitting module 104, the digital-to-analog conversion module 22 is configured to perform digital-to-analog conversion on the digital audio information in the second format received by the receiving module 21 to obtain second analog audio information, and transmit the second analog audio information to the power amplifier 23, the power amplifier 23 is configured to perform power amplification on the second analog audio information, and the speaker 24 is configured to play the second analog audio information after power amplification.

It should be noted that, when the first transmitting module 104 does not transmit the digital audio information in the second format, and the second transmitting module 34 transmits the digital audio information in the second format, the receiving module 21 may receive the digital audio information in the second format transmitted by the second transmitting module 34.

Further, in order to ensure the playing effect of the audio information, as shown in fig. 1, 2 or 3, each loudspeaker box 2 may further include a frequency division processing module 26 and a volume processing module 27, and the frequency division processing module 26 and the volume processing module 27 are sequentially connected in series between the receiving module 21 and the digital-to-analog conversion module 22.

The frequency division processing module 26 may separate the digital audio information in the second format according to high, middle, and low frequency bands to obtain different parts of high pitch, middle pitch, low pitch, etc., and then send the different parts to the corresponding high, middle, and low pitch speakers 24 for playing. The volume processing module 27 may process the volume of the digital audio information in the second format to adjust the playing effect of the digital audio information in the second format.

The embodiment of the utility model provides an in, audio information who treats the broadcast through bluetooth module, connection module, at least one digital signal converter and the digital signal modulator that the audio frequency concentrator includes converts the digital audio information who obtains the second form, transmits the digital audio information of second form to first sending module to launch through first sending module. Or the digital audio information in the first format is acquired through a communication module and a CPU (central processing unit) which are included in the music player, the digital audio information in the first format is processed to obtain the digital audio information in the second format, and the digital audio information in the second format is transmitted to a second transmitting module to be transmitted through the second transmitting module. And then, after the receiving module included in each sound box receives the digital audio information in the second format transmitted by the first transmitting module or the second transmitting module, frequency division processing and volume processing are carried out, the processed digital audio information in the second format is converted into second analog-digital audio information, the second analog-digital audio information is amplified by the power amplifier, and the second analog-digital audio information after power amplification is played by the loudspeaker. Therefore, the playing of wired audio information or network audio information in any format is realized, and meanwhile, the arbitrary placement of at least one sound box is realized.

Fig. 4 illustrates a schematic structural diagram of an audio system according to an embodiment of the present invention. As shown in fig. 4, the sound system may include a music player 3 and at least one sound box 2, the music player 3 including a central processing unit CPU31, a second operation panel 32, a storage module 33, a second transmission module 34, and a second power supply module 35. The control end of the CPU31 is connected to the second operation panel 32, the CPU31 is connected to the storage module 33, the first output end of the CPU31 is connected to the input end of the second transmitting module 34, the second transmitting module 34 is wirelessly connected to at least one speaker 2, and the second power module 35 is connected to the CPU31, the second operation panel 32, the storage module 33, and the second transmitting module 34, respectively.

the second operation panel 32 is configured to obtain a second operation instruction of the user, the CPU31 is configured to obtain the digital audio information in the first format stored in the storage module 33 based on the second operation instruction, process the obtained digital audio information in the first format to obtain the digital audio information in the second format, the second transmitting module 34 is configured to transmit the digital audio information in the second format obtained by processing by the CPU31, and the at least one sound box 2 is configured to receive the digital audio information in the second format and play the received digital audio information.

Based on the above arrangement, when the second power module 35 supplies power to the CPU31, the second operation panel 32, the storage module 33 and the second transmission module 34, the user can operate the second operation panel 32 to obtain the second operation instruction of the user through the second operation panel 32 and transmit the second operation instruction to the CPU 31. The CPU31 obtains the digital audio information in the first format to be played from the storage module 33 based on the received operation instruction, processes the obtained digital audio information in the first format to obtain digital audio information in the second format, and transmits the processed digital audio information in the second format to the second transmitting module to be transmitted by the second transmitting module 34, so that at least one sound box 2 can receive and play the digital audio information in the second format.

the storage module 33 may be a Read Only Memory (ROM), and the second transmitting module 34 may transmit the digital audio information in the second format when the first transmitting module 104 does not transmit the digital audio information in the second format, so as to prevent the first transmitting module 104 and the second transmitting module 34 from being in a state of transmitting the digital audio information in the second format at the same time.

further, as shown in fig. 4, the music player 3 further includes a first communication module 36, the second power module 35 is connected to the first communication module 36, and a signal terminal of the first communication module 36 is connected to a signal terminal of the CPU 31. The CPU31 is configured to acquire digital audio information in a first format through the first communication module 36 and store the digital audio information in the first format in the storage module 33.

It should be noted that, in the embodiment of the present invention, in at least one sound box 2, each sound box 2 can be the same as the sound box 2 in the above embodiment, which is not described herein again.

The embodiment of the utility model provides an in, the digital audio information of first form is acquireed to communication module and CPU that includes through the music player, obtains the digital audio information of second form with the digital audio information processing of first form, transmits the digital audio information of second form to second emission module to launch through second emission module. And then, after the receiving module included in each sound box receives the digital audio information in the second format transmitted by the second transmitting module, frequency division processing and volume processing are carried out, the processed digital audio information in the second format is converted into second analog-digital audio information, the second analog-digital audio information is amplified by the power amplifier, and the second analog-digital audio information after power amplification is played by the loudspeaker. Therefore, the playing of wired audio information or network audio information in any format is realized, and meanwhile, the arbitrary placement of at least one sound box is realized.

The above description is only illustrative of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A sound system, characterized in that it comprises an audio hub (1) and at least one loudspeaker (2), said audio hub (1) comprising a connection module (101), at least one digital signal converter (102), a digital signal modulator (103), a first transmission module (104) and a first power module (105);

The connection module (101) comprises at least one digital interface corresponding to the at least one digital signal converter (102) in a one-to-one manner, and an analog interface corresponding to the digital signal modulator (103);

The input end of the at least one digital signal converter (102) is connected with a corresponding digital interface, the input end of the digital signal modulator (103) is connected with the analog interface, the output end of the at least one digital signal converter (102) and the output end of the digital signal modulator (103) are connected with the input end of the first transmitting module (104), the first transmitting module (104) is wirelessly connected with the at least one sound box (2), and the first power supply module (105) is connected with the connecting module (101), the at least one digital signal converter (102), the digital signal modulator (103) and the first transmitting module (104) respectively;

The at least one digital signal converter (102) is configured to perform format conversion on digital audio information in a first format acquired from a corresponding digital interface to obtain digital audio information in a second format, the digital signal modulator (103) is configured to perform analog-to-digital conversion on first analog audio information acquired from the analog interface to obtain digital audio information in the second format, the first transmitting module (104) is configured to transmit digital audio information in the second format converted by any one of the digital signal converter (102) or the digital signal modulator (103), and the at least one sound box (2) is configured to receive digital audio information in the second format and play the received digital audio information.

2. A sound system according to claim 1, characterized in that the audio hub (1) further comprises a bluetooth module (106), an output of the bluetooth module (106) being connected to an input of the first transmit module (104), the bluetooth module (106) being connected to the first power module (105);

the bluetooth module (106) is configured to perform format conversion on the acquired digital audio information in the first format to obtain digital audio information in the second format when the at least one digital signal converter (102) or the digital signal modulator (103) does not transmit the digital audio information in the second format to the first transmitting module (104).

3. A sound system according to claim 2, characterised in that said audio hub (1) further comprises a micro-control processor MCU (107), a control switch (108) and a first operating panel (109);

The control end of the MCU (107) is connected with the first operation panel (109), a first output end of the MCU (107) is connected with a control end of the control switch (108), the control switch (108) is provided with a number equal to the total number of the at least one digital signal converter (102), the digital signal modulator (103) and the Bluetooth module (106), and a plurality of input ends corresponding to each other, the output end of the at least one digital signal converter (102), the output end of the Bluetooth module (106) and the output end of the digital signal modulator (103) are respectively connected with the corresponding input ends on the control switch (108), the output end of the control switch (108) is connected with the input end of the first transmitting module (104), the MCU (107), the control switch (108) and the first operation panel (109) are all connected with the first power supply module (105);

The first operation panel is used for obtaining a first operation instruction of a user, and the MCU (107) is used for controlling the control switch (108) to conduct any one digital signal converter (102) of the at least one digital signal converter (102) and the first transmission module (104) based on the first operation instruction, or conduct the Bluetooth module (106) and the first transmission module (104), or conduct the digital signal modulator (103) and the first transmission module (104).

4. a sound system as claimed in any one of claims 1 to 3, characterized in that it further comprises a music player (3), said music player (3) comprising a central processing unit CPU (31), a second operating panel (32), a memory module (33), a second transmitting module (34) and a second power supply module (35);

The control end of the CPU (31) is connected with the second operation panel (32), the CPU (31) is connected with the storage module (33), the first output end of the CPU (31) is connected with the input end of the second transmitting module (34), the second transmitting module (34) is wirelessly connected with the at least one sound box (2), and the second power supply module (35) is respectively connected with the CPU (31), the second operation panel (32), the storage module (33) and the second transmitting module (34);

The second operation panel (32) is configured to obtain a second operation instruction of a user, the CPU (31) is configured to obtain the digital audio information in the first format stored in the storage module (33) based on the second operation instruction, process the obtained digital audio information in the first format to obtain the digital audio information in the second format, and the second transmitting module (34) is configured to transmit the digital audio information in the second format processed by the CPU (31) when the first transmitting module (104) does not transmit the digital audio information in the second format.

5. A sound system as claimed in claim 4, characterized in that said music player (3) further comprises a first communication module (36), said second power module (35) being connected to said first communication module (36), a signal terminal of said first communication module (36) being connected to a signal terminal of said CPU (31);

The CPU (31) is used for acquiring the digital audio information in the first format through the first communication module (36) and storing the digital audio information in the first format in the storage module (33).

6. The sound system according to claim 5, characterized in that when the audio hub (1) further comprises an MCU (107), the audio hub (1) further comprises a second communication module (110), the second communication module (110) is wirelessly connected with the first communication module (36), a signal terminal of the second communication module (110) is connected with a signal terminal of the MCU (107), the second communication module (110) is connected with the first power supply module (105), and a second output terminal of the MCU (107) is connected with the first transmission module (104);

the CPU (31) is configured to transmit a control instruction to the MCU (107) to control the first transmitting module (104) to turn off when the second transmitting module (34) transmits the digital audio information in the second format, or control the second transmitting module (34) to turn off when an information transmitting message transmitted by the MCU (107) is acquired, where the information transmitting message is used to indicate that the first transmitting module (104) has transmitted the digital audio information in the second format.

7. a sound system as claimed in claim 1, characterized in that each sound enclosure (2) of said at least one sound enclosure (2) comprises a receiving module (21), a digital-to-analog conversion module (22), a power amplifier (23), a loudspeaker (24) and a third power supply module (25);

the receiving module (21) is wirelessly connected with the first transmitting module (104), the output end of the receiving module (21) is connected with the input end of the digital-to-analog conversion module (22), the output end of the digital-to-analog conversion module (22) is connected with the input end of the power amplifier (23), the output end of the power amplifier (23) is connected with the loudspeaker (24), and the third power supply module (25) is respectively connected with the receiving module (21), the digital-to-analog conversion module (22) and the power amplifier (23);

The receiving module (21) is configured to receive the digital audio information in the second format transmitted by the first transmitting module (104), the digital-to-analog conversion module (22) is configured to perform digital-to-analog conversion on the digital audio information in the second format received by the receiving module (21) to obtain second analog audio information, the power amplifier (23) is configured to perform power amplification on the second analog audio information, and the speaker (24) is configured to play the second analog audio information after power amplification.

8. sound system according to claim 7, characterised in that each loudspeaker box (2) further comprises a frequency division processing module (26) and a volume processing module (27), said frequency division processing module (26) and said volume processing module (27) being in turn connected in series between said receiving module (21) and said digital-to-analogue conversion module (22).

9. A sound system according to claim 1, characterized in that the digital audio information in the second format is pulse code modulation, PCM, audio information or direct bit stream, digital, DSD, audio information.