CN117915236A - Sound equipment and audio playing system - Google Patents

Abstract

The present disclosure provides an audio device and an audio playback system, including: the first data receiving unit, the sound box and the relay are connected, and the first end of the relay is connected with the sound box; the first data receiving unit is used for receiving first audio data; the second end of the relay is connected with the first data receiving unit, and the relay is used for controlling conduction between the first end and the second end when the sound equipment is powered off so as to play the first audio data through the sound box. The embodiment of the disclosure can connect a sound box in the sound equipment with a first data receiving unit for receiving first audio data through a relay. Thus, when the first data receiving unit receives the first audio data, a current signal corresponding to the first audio data is transmitted to the relay, and the relay can be connected to the first data receiving unit when sensing the current signal. Therefore, the loudspeaker box connected with the relay can receive the first audio data for playing.

Description

Sound equipment and audio playing system

Technical Field

The embodiment of the disclosure relates to the technical field of audio processing equipment, in particular to sound equipment and an audio playing system.

Background

The acoustic device is a device for playing audio data. The audio device may play local audio data, audio data for reproduction, audio data transmitted from the external device to the audio device. In different scenes, the audio device can be controlled to play audio data of different sources.

In the prior art, before the audio device needs to play the audio data sent by the external device, the audio device needs to establish a connection with the external device, where the connection may be various types of connection manners, including but not limited to a network connection or a data line connection. After the connection is established, the external device may transmit the audio data to the acoustic device through the connection to cause the acoustic device to play the audio data.

However, when the audio device is powered off, the audio device may fail to play the audio data.

Disclosure of Invention

The embodiment of the disclosure provides an audio device and an audio playing system, so as to avoid the situation that audio data cannot be played when the audio device is powered off.

In a first aspect, an embodiment of the present disclosure provides an acoustic apparatus, including: the device comprises a first data receiving unit, a sound box and a relay, wherein the first end of the relay is connected with the sound box;

the first data receiving unit is used for receiving first audio data;

The second end of the relay is connected with the first data receiving unit, and the relay is used for controlling conduction between the first end and the second end when the sound equipment is powered off so as to play the first audio data through the sound box.

Optionally, the first data receiving unit includes: the receiving terminal is used for receiving the first audio data, and the audio transformer is used for carrying out step-down processing on the first audio data.

Optionally, the audio device further includes a data processing unit, the data processing unit is connected with the third end of the relay, and the data processing unit is used for controlling the relay to connect the sound box and the data processing unit after power-on.

Optionally, the audio device further includes a second data receiving unit, the second data receiving unit is configured to receive second audio data, the data processing unit is connected to the second data receiving unit, and the data processing unit is configured to send the second audio data to the relay when the second audio data meets a preset condition.

Optionally, the data processing unit is further connected to the first data receiving unit, and the data processing unit is further configured to send the first audio data to the relay when the second audio data does not meet the preset condition.

Optionally, the data processing unit is connected with the power amplification unit, the power amplification unit is connected with the fourth end of the relay, the data processing unit is used for controlling the relay to conduct between the first end and the fourth end after power-on, and sending the first audio data or the second audio data to the power amplification unit, and the power amplification unit is used for sending the first audio data or the second audio data to the relay after power amplification.

Optionally, the first data receiving unit is connected to the data processing unit through a data conversion unit, and the data conversion unit is used for converting the first audio data from an analog signal to a digital signal.

In a second aspect, an embodiment of the present disclosure provides an audio playing system, including the audio device of the first aspect.

Optionally, the audio playing system further comprises: the constant-voltage backup device is used for receiving second audio data from the audio source device and carrying out backup processing on the second audio data to obtain first audio data;

The constant voltage backup device is connected with the first data receiving unit of the sound equipment through a data transmission line and is used for sending the first audio data to the first data receiving unit.

Optionally, the constant-voltage backup device includes: a broadcasting host and a network power amplifier;

The broadcast host is connected with the audio source equipment and is used for receiving the second audio data sent by the audio source equipment and carrying out backup processing on the second audio data to obtain the first audio data;

The network power amplifier is connected with the broadcasting host and is used for sending the first audio data sent by the broadcasting host to the network power amplifier for power amplification;

The network power amplifier is connected with the first data receiving unit of the sound equipment through a data transmission line and is used for sending the first audio data after power amplification to the first data receiving unit of the sound equipment.

Optionally, the second data receiving unit of the audio device is connected with the audio source device through a network host, and is configured to receive the second audio data sent by the audio source device.

The embodiment of the disclosure provides an audio device and an audio playing system, the audio device includes: the first data receiving unit, the sound box and the relay are connected, and the first end of the relay is connected with the sound box; the first data receiving unit is used for receiving first audio data; the relay is used for controlling the second end of the relay to be connected with the first data receiving unit when the sound equipment is powered off so as to play the first audio data through the sound box. The embodiment of the disclosure can connect the sound box with the first data receiving unit for receiving the first audio data through the relay. Thus, when the first data receiving unit receives the first audio data, a current signal corresponding to the first audio data is transmitted to the relay, and the relay can be connected to the first data receiving unit when sensing the current signal. Therefore, the loudspeaker box connected with the relay can receive the first audio data for playing.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the embodiments of the disclosure.

Fig. 1 to 3 are schematic structural views of three acoustic devices provided in an embodiment of the present disclosure;

FIG. 4 is a schematic diagram of a processing procedure of the audio device shown in FIG. 3 when power is on according to an embodiment of the present disclosure;

fig. 5 is a schematic diagram of a processing procedure of the audio device shown in fig. 3 when power is off according to an embodiment of the disclosure;

Fig. 6 is a schematic structural diagram of an audio playing system according to an embodiment of the present disclosure.

Specific embodiments thereof have been shown by way of example in the drawings and will herein be described in more detail. These drawings and the written description are not intended to limit the scope of the disclosed embodiment concepts in any way, but rather to illustrate the disclosed embodiment concepts to those skilled in the art by reference to the specific embodiments.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the embodiments of the present disclosure. Rather, they are merely examples of apparatus and methods consistent with aspects of embodiments of the present disclosure as detailed in the accompanying claims.

The embodiment of the disclosure provides an audio device, so that the audio device can continue playing audio data when the audio device is powered off. When the sound equipment is powered off, the data processing unit of the sound equipment cannot normally operate, so that audio data cannot be sent to a sound box in the sound equipment for playing through the data processing unit. In order to enable the audio device to play audio data in the event of a power failure, the embodiments of the present disclosure may connect the sound box and the first data receiving unit that receives the first audio data through the relay. Thus, when the first data receiving unit receives the first audio data, a current signal corresponding to the first audio data is transmitted to the relay, and the relay can be connected to the first data receiving unit when sensing the current signal. Therefore, the loudspeaker box sound connected with the relay can receive the first audio data to play.

Fig. 1 is a schematic structural diagram of an audio device according to an embodiment of the present disclosure. Referring to fig. 1, an acoustic apparatus 100 includes: comprising the following steps: a first data receiving unit 101, a sound box 102 and a relay 103. The first terminal 1031 of the relay 103 is connected to the sound box 102, and the first terminal 1031 can be understood as a data output terminal of the relay 103.

The first data receiving unit 101 is configured to receive first audio data, the relay 103 is configured to control the second terminal 1032 of the relay 103 to be connected to the first data receiving unit 101 when the audio device 100 is powered off, the relay 103 is configured to control conduction between the first terminal 1031 and the second terminal 1032 of the relay 103 when the audio device is powered off, and the second terminal 1032 can be understood as one data input terminal of the relay 103.

The above-mentioned relay 103 may be understood as an automatic switch that senses the power-off of the audio device 100 to conduct between the first terminal 1031 and the second terminal 1032 when the power-off occurs, thereby establishing a connection between the audio and the first data receiving unit 101. In this way, the loudspeaker 102 may receive the first audio data to play the first audio data through the loudspeaker 102. In this way, an automatic switching connection relationship is achieved to play the first audio data upon power failure.

The first data receiving unit 101 may be a receiving terminal 1011, where the receiving terminal 1011 is directly connected to the second end 1032 of the relay 103, so as to send the received first audio data to the relay 103, that is, the receiving terminal 1011 does not perform any processing on the received first audio data, and directly sends the received first audio data to the sound box 102 through the relay 103 for playing. But damages the relay 103 when the voltage of the first audio data is excessively large, resulting in a playback failure.

Alternatively, referring to fig. 2, the first data receiving unit 101 includes: the receiving terminal 1011 and the audio transformer 1012 are connected to each other. An audio transformer 1012 is connected to the second end 1032 of the relay 103, and a receiving terminal 1011 is used for receiving the first audio data, and the audio transformer 1012 is used for performing step-down processing on the first audio data. Therefore, the voltage of the first audio data can be ensured to be within the bearable range of the relay 103, the relay 103 is prevented from being damaged, and the playing success rate is improved.

Optionally, referring to fig. 2, the audio device 100 further includes a data processing unit 104, where the data processing unit 104 is connected to the third terminal 1033 of the relay 103, and the data processing unit 104 is configured to control the relay 103 to connect the sound box 102 with the data processing unit 104 after power is applied, so that the data processing unit 104 may send the first audio data or the second audio data to the sound box 102, so as to play the first audio data or the second audio data through the sound box 102.

The data processing unit 104 may be understood as a unit that performs logic processing on data, for example, a Digital Signal Processing (DSP) unit, and may perform logic processing on amplitude, frequency, phase, and the like of the data. In this way, the data may be processed by the data processing unit 104 and then sent to the speaker 102 for playing when power is on, so that the played audio data is processed, which is helpful for improving the playing effect of the audio.

The third terminal 1033 of the relay 103 is used for switching the device to which the relay 103 is connected, and may also be referred to as a switching control terminal. The data processing unit 104 may send control information to the third terminal 1033 of the relay 103 after power-up to cause the relay 103 to connect the second terminal 1032 with the data processing unit 104. Therefore, after power-up, the data processing unit 104 may send the audio data to be played to the relay 103 for playing. The audio data to be played here may be the first audio data received by the first data receiving unit 101 or the second audio data received by the second data receiving unit 106, and the first audio data and the second audio data may include the same data content or may include different data contents.

In a typical scenario, the first audio data and the second audio data comprise the same data content. In this scenario, the second audio data may be audio data transmitted from the network to the second data receiving unit 106, and the first audio data is audio data generated for the backup of the first audio data, which is received by the first data receiving unit 101. In transmitting the second audio data to the acoustic device 100 through the network, the first audio data is backed up and transmitted to the acoustic device 100. The first audio data and the second audio data may be examination audio played at the time of examination.

Optionally, the above-mentioned audio device 100 further includes the above-mentioned second data receiving unit 106, and the second data receiving unit 106 is configured to receive second audio data. The data processing unit 104 is connected to the second data receiving unit 106, and the data processing unit 104 is configured to send the second audio data to the relay 103 when the second audio data meets a preset condition.

The second data receiving unit 106 may be a DANTE (technology of transmitting real-time audio signals in ethernet by using a network data structure) module, which receives audio data from a network using AOIP (audio over internet protocol, audio network protocol), and may be connected to an external device through an RJ45 port. After the second data receiving unit 106 sends the second audio data to the data processing unit 104, the data processing unit 104 may perform a logic operation and a judgment on the second audio data to determine whether the second audio data meets the preset condition. Specifically, the second audio data received at the current time is sampled to obtain a plurality of amplitudes, and the average amplitude of the plurality of amplitudes is calculated; then calculating the difference between each amplitude and the average amplitude as an amplitude deviation; then, for a plurality of preset amplitude ranges, determining the amplitude deviation belonging to the amplitude range from the amplitude deviations to obtain the amplitude deviation quantity in each amplitude range, and weighting the amplitude deviation quantity in each amplitude range to obtain weighted amplitude deviation; and finally comparing the weighted amplitude deviation with a preset deviation threshold value. If the weighted amplitude deviation is greater than or equal to the preset deviation threshold, determining that the second audio data meets the preset condition, determining that the second audio data is not background noise, and sending the second audio data to the sound box 102 for playing through the relay 103. Otherwise, it is determined that the second audio data does not meet the preset condition, and the second audio data is considered to be a background noise and is not sent to the loudspeaker 102 for playing.

Wherein, the weighted amplitude deviation can be the following formula:

Wherein D is the weighted amplitude deviation, N is the number of amplitude ranges, P _i is the weighting coefficient corresponding to the ith amplitude range, and N _i is the number of amplitude deviations in the ith amplitude range.

Each of the amplitude ranges described above has a lower boundary, for example, 3 amplitude ranges can be set: a first amplitude range greater than L1, a second amplitude range greater than L2, a third amplitude range greater than L3, and L1 is greater than L2, L2 is greater than L3. And setting a weighting parameter for each amplitude range, wherein if the lower boundary corresponding to the amplitude range is smaller, the weighting parameter corresponding to the amplitude range is smaller. The larger the lower boundary corresponding to the amplitude range, the larger the weighting parameter corresponding to the amplitude range. For example, the weighting parameter of the first amplitude range is smaller than the weighting parameter of the second amplitude range, and the weighting parameter of the second amplitude range is smaller than the weighting parameter of the third amplitude range. Thus, when large deviation occurs for many times, larger weighted amplitude deviation can be obtained, and thus, the background noise can be better detected.

It is understood that the quality of the second audio data is considered to be good when the weighted amplitude deviation of the second audio data is greater than or equal to the preset deviation threshold. According to the embodiment of the disclosure, when the quality of the second audio data is good, the second audio data can be played, and the audio playing effect is improved.

In addition, when the weighted amplitude deviation of the second audio data is less than or equal to the preset deviation threshold, the quality of the second audio data may be considered to be poor, and the reason for the poor quality may be network poor or the rest. In this case, the audio playing effect is poor if the second audio data is played. In order to improve the audio playing effect in such a scenario, the data processing unit 104 may be connected to the first data receiving unit 101, where the data processing unit 104 is further configured to send the first audio data to the relay 103 when the second audio data does not meet the preset condition, so that the relay 103 sends the first audio data to the sound box 102 for playing.

Optionally, the data processing unit 104 is connected to the power amplifying unit 105, and the power amplifying unit 105 is connected to the fourth terminal 1034 of the relay 103. The data processing unit 104 is configured to control the relay 103 to conduct between the first terminal 1031 and the fourth terminal 1034 after power is applied, so that a connection between the power amplifying unit 105 and the sound box 102 is established. The data processing unit 104 may be further configured to send the first audio data or the second audio data to the power amplification unit 105, where the power amplification unit 105 is configured to power-amplify the first audio data or the second audio data and send the amplified first audio data or the amplified second audio data to the relay 103, so that the relay 103 sends the first audio data or the second audio data to the speaker 102 for playing.

Because the first audio data and the second audio data are amplified by the same power amplifying unit, in order to ensure that the power of the first audio data and the power of the second audio data are the same when the first audio data and the second audio data are played, the first audio data and the second audio data output by the data processing unit are required to have the same power. According to the embodiment of the disclosure, the data processing unit can amplify the power of the first audio data and the second audio data with different gains (gain) respectively, so that the first audio data and the second audio data have the same power, and the first audio data and the second audio data have the same sound size during playing, so that larger sound change is avoided during switching playing between the first audio data and the second audio data, switching is not perceived, and the audio playing effect can be further improved.

It can be understood that the above data processing unit can flexibly adjust the gains of the first audio data and the second audio data through software, so that after the audio transformer steps down the first audio data, the data processing unit can further perform fine adjustment on the power of the first audio data and the second audio data through the gains, so that the power of the first audio data and the power of the second audio data are more similar or even the same.

In addition, dynamic range control (DRC, DYNAMIC RANGE control) may be performed on the above-described power amplification process. In the power amplifying process, if the amplified power is greater than or equal to a preset maximum power, the maximum power may be used as the amplified power, and if the amplified power is less than a preset minimum power, the minimum power may be used as the amplified power. Therefore, the first audio data and the second audio data which are output to the power amplification unit can be prevented from being in a range which can be supported by the power amplification unit, and damage to the power amplification unit is avoided.

The power amplifier unit 105 may also be referred to as a power amplifier, and when the second audio data received by the data processing unit 104 is a digital signal, the power amplifier may be a digital power amplifier.

It can be seen that the power amplification unit 105 may be disposed inside the audio device 100 provided in the embodiment of the present disclosure, so that the audio device 100 provided in the embodiment of the present disclosure may be an active audio device 100. Conversely, the acoustic apparatus 100 without the power amplification unit 105 may be referred to as a passive acoustic apparatus 100.

In an embodiment of the present disclosure, when the backed-up first audio data is generated by simulating the first audio data by the constant-voltage backup data, the first audio data is an analog signal. And the second audio data is a PCM (pulse code modulation, pulse coded) data stream, i.e. a digital signal. At this time, the analog signal may be converted into a digital signal. Specifically, the first data receiving unit 101 may be connected to the data processing unit 104 through the data converting unit 107, that is, as shown with reference to fig. 2, the audio transformer 1012 is connected to the data processing unit 104 through the data converting unit 107. The data conversion unit 107 is configured to convert the first audio data from an analog signal to a digital signal. In this way, on the one hand, the converted second audio data is a digital signal and can be used by the data processing unit 104 to perform logic judgment, on the other hand, the second audio data and the first audio data can share a set of logic in the data processing unit 104 and the subsequent power amplifying unit 105, which is helpful for reducing the complexity of the circuit of the audio equipment, reducing the size of the circuit, reducing the size of the audio equipment 100, and saving the space occupied by the audio equipment 100.

The data conversion unit 107 may be an ADC (analog digital codec, analog-to-digital conversion encoder), or simply referred to as an analog-to-digital converter, which also has an isolation effect, avoids coupling between the audio transformer 1012 and the data processing unit 104, and helps to improve the accuracy of the transmission of the first audio data.

Of course, in practical application, if the circuit complexity and the circuit size of the audio apparatus are not taken into consideration, the data conversion unit may not be provided, and a separate amplifier may be provided for the first audio data at this time.

In summary, the audio device 100 provided in the embodiment of the present disclosure may perform audio switching playback in the absence of the user's feeling. So as to ensure that the audio device 100 plays the audio data without perception by the user even when the audio device 100 is powered off due to network fluctuation, network paralysis and network failure, without interrupting the playing of the audio data. This is particularly important in hearing test scenarios, etc., where interruption of the test can be avoided.

Fig. 3 is a schematic structural diagram of an acoustic apparatus 100 according to an embodiment of the present disclosure. Referring to fig. 3, a phoenix terminal a and an audio transformer 1012 constitute the aforementioned first data receiving unit 101. The ADC is the aforementioned data conversion unit 107. The DSP is the aforementioned data processing unit 104.DANTE is the aforementioned second data receiving unit 106. In fig. 3 there are two main and sub-boxes, two sound boxes 102. The main box is connected with the relay C through an interface terminal, and the auxiliary box is connected with the relay D through a phoenix terminal B. It can be seen that two digital power amplifiers are shown in fig. 3 as the aforementioned two power amplifying units 105, which respectively provide audio data for the main box and the sub-box, where the audio data includes first audio data and second audio data.

The following describes in detail the processing procedures of the acoustic apparatus 100 shown in fig. 3, including both the processing procedures when power is on and the processing procedures when power is off. Fig. 4 is a schematic diagram of a processing procedure of the acoustic apparatus 100 shown in fig. 3 when power is on, provided in an embodiment of the present disclosure; fig. 5 is a schematic diagram of a processing procedure of the audio apparatus 100 shown in fig. 3 when power is off, according to an embodiment of the present disclosure.

When the audio device 100 is powered on, the relay C, D disconnects the speaker 102 from the audio transformer 1012 and connects the speaker 102 to the digital power amplifier. At this time, referring to fig. 4, the processing procedure of the acoustic device 100 receiving the first audio data and the second audio data may include S201 to S210.

S201: the phoenix terminal A receives the first audio data input by constant voltage, and the DANTE module receives the second audio data.

After S201, S205 may be synchronously performed in the process of performing S202 to S204, followed by S206 and subsequent steps.

S202: the phoenix terminal a sends the first audio data to the audio transformer for step down.

S203: the audio transformer sends the first audio data after the step-down to the ADC.

S204: the ADC may convert the first audio data from an analog signal to a digital signal and transmit the first audio data of the digital signal to the DSP.

S205: the DANTE module sends the second audio data to the DSP.

S206: the DSP judges whether the second audio data meets the preset condition. If yes, the process proceeds to S207, otherwise, the process proceeds to S208.

S207: the DSP sends the second audio data to the two digital power amplifiers.

S208: the DSP sends the first audio data to the two digital power amplifiers.

S209: the two digital power amplifiers amplify the received audio data in power and send the audio data after power amplification to the relays C and D.

S210: and the relay C sends the audio data after power amplification to the main box for playing, and meanwhile, the relay D sends the audio data after power amplification to the auxiliary box for playing.

It can be understood that the audio data received by the digital power amplifier is the first audio data or the second audio data, so that the first audio data or the second audio data is played.

In the above-described processing, the power of the acoustic apparatus 100 may occur, and when the acoustic apparatus 100 is powered off, the relay 103 connects the sound box 102 and the audio transformer, and at this time, referring to fig. 5, the processing of the acoustic apparatus 100 receiving the first audio data and the second audio data may include S211 to S214.

S211: the phoenix terminal a receives the first audio data of the constant voltage input.

S212: the phoenix terminal a sends the first audio data to the audio transformer for step down.

S213: the audio transformer transmits the first audio data after the step-down to the relay C, D.

S214: and the relay C, D sends the first audio data after the depressurization to the main box and the auxiliary box for playing.

In the process of power failure, re-power-up may occur, and when re-power-up or first power-up occurs, the DSP is connected to the switching control end of the relay 103, so as to control the relay 103 to be connected to the digital power amplifier. In this way, the processing can be performed again in accordance with the steps S201 to S210 described above.

The embodiments of the present disclosure also provide an audio playback system that includes at least the aforementioned audio device 100, and when there is no external device that provides audio data for the audio device 100, the audio device 100 can play local audio data. On the basis of this, the audio playback system may further include an external device that can provide audio data to be played back to the acoustic device 100. In the embodiment of the present disclosure, the external devices herein may include an audio source device 11, a constant voltage backup device 12, and a network host 13.

The audio source device 11 may be any electronic device, for example, a personal computer, a mobile phone, a notebook, etc. The audio source device 11 may store second audio data to be played, and broadcast software may be installed on the audio source device 11, where the broadcast software is used to control audio playing, for example, clicking to start playing, pausing playing, accelerating playing, decelerating playing, restarting playing, and the like. Of course, during a hearing test, after clicking to begin playing, the rest of the control operations need not be performed. But in other audio playback scenarios the remaining control operations may be performed.

The constant-pressure backup device 12 is used for performing analog backup on the second audio data to obtain the first audio data.

The network host 13 may be understood as a local router so that the audio source device 11 may be connected to the network host 13 to access the network through the network host 13.

Alternatively, referring to fig. 6, the audio source device 11 and the constant voltage backup device 12 are connected to each other, and the constant voltage backup device 12 is configured to receive the second audio data from the audio source device 11, and perform a backup process on the second audio data to obtain the first audio data. The constant voltage backup device 12 is connected to the first data receiving unit 101 of the acoustic device 100 via a data transmission line for transmitting the first audio data to the first data receiving unit 101. The transmission stability of the data transmission line is good, the transmission success rate of the first audio data of the data can be better ensured, and the audio data can be normally played when power is off or the network is abnormal.

Alternatively, referring to fig. 6, the constant pressure backup apparatus 12 may include: a broadcast host 121 and a network power amplifier 122. The broadcast host 121 may be connected to the audio source device 11, and configured to receive the second audio data sent by the audio source device 11, and perform backup processing on the second audio data to obtain the first audio data. The network power amplifier 122 is connected to the broadcast host 121, and is configured to send the first audio data sent by the broadcast host 121 to the network power amplifier 122 for power amplification. The network power amplifier 122 is connected to the first data receiving unit 101 of the audio device 100 through a data transmission line, and is configured to send the first audio data after power amplification to the first data receiving unit 101 of the audio device 100. Thus, the network power amplifier 122 can amplify the power of the first audio data, so that the success rate of the audio device 100 for receiving the first audio data can be improved, the success rate of the audio device 100 for playing the first audio data can be improved, and the normal and high-quality playing of the first audio data can be ensured when the second audio data cannot be played or the playing effect is poor due to power failure or poor network.

It will be appreciated that the constant voltage backup device 12 may include the broadcast host 121 and the network power amplifier 122, or may include only the broadcast host 121. In this way, when the transmission path of the data transmission line is short, the transmission attenuation is small, so that the high-quality transmission of the first audio data can be ensured without using the network power amplifier 122.

In some possible scenarios, the second audio data and the broadcast host 121 may be connected by a network, including: wired or wireless networks may also be connected by data transmission lines. The second audio data and the broadcasting host 121 may be remotely located while being connected through a network. The second audio data and the broadcasting host 121 can be remotely located when connected through the data transmission line, and it is also possible to avoid network anomalies from causing the broadcasting host 121 to fail to acquire the second audio data.

Likewise, the broadcast host 121 and the network power amplifier 122 may be connected through a network connection or a data transmission line, which is not described herein. The connection between the network power amplifier 122 and the broadcast host 121 may also be implemented by the network host 13, where the broadcast host 121 is connected to the network host 13, and the network host 13 is connected to the network power amplifier 122. Thus, a local area network is formed through which the first audio data is transmitted.

Alternatively, referring to fig. 6, the second data receiving unit 106 of the acoustic device 100 is connected to the audio source device 11 through the network host 13, for receiving the second audio data transmitted by the audio source device 11. In this case, the audio apparatus 100 may receive the first audio data, which is backup data generated from the first audio data, and the second audio data at the same time, and the playback effect of the first audio data is worse than that of the second audio data, so that the audio apparatus 100 may be controlled to preferentially play the second audio data to secure the audio playback effect as much as possible. When the second audio data cannot be played due to power failure or when the transmission quality of the second audio data is poor due to network abnormality, the audio device 100 may switch to the first audio data for playing.

In addition, the network host 13 may also be connected to the internet (internet) through a firewall to allow the audio source device 11 to communicate through the network.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The foregoing embodiment numbers of the present disclosure are merely for description and do not represent advantages or disadvantages of the embodiments.

The foregoing is only the preferred embodiments of the present disclosure, and not the patent scope of the embodiments of the present disclosure, and all equivalent structures or equivalent flow changes made by the descriptions of the embodiments of the present disclosure and the accompanying drawings, or direct or indirect application in other related technical fields, are included in the scope of the embodiments of the present disclosure.

Claims (11)

1. An acoustic apparatus, comprising: the device comprises a first data receiving unit, a sound box and a relay;

The first end of the relay is connected with the sound box, and the first data receiving unit is used for receiving first audio data;

The second end of the relay is connected with the first data receiving unit, and the relay is used for controlling conduction between the first end and the second end when the sound equipment is powered off so as to play the first audio data through the sound box.

2. The acoustic device according to claim 1, wherein the first data receiving unit includes: the receiving terminal is used for receiving the first audio data, and the audio transformer is used for carrying out step-down processing on the first audio data.

3. The audio device of claim 2, further comprising a data processing unit connected to the third terminal of the relay, the data processing unit configured to control the relay to connect the speaker and the data processing unit after power-up.

4. The acoustic device according to claim 3, further comprising a second data receiving unit for receiving second audio data, the data processing unit being connected to the second data receiving unit, the data processing unit being adapted to send the second audio data to the relay when the second audio data meets a preset condition.

5. The audio device of claim 4, wherein the data processing unit is further coupled to the first data receiving unit, the data processing unit further configured to send the first audio data to the relay when the second audio data does not satisfy the preset condition.

6. The audio device according to claim 5, wherein the data processing unit is connected to a power amplification unit, the power amplification unit is connected to a fourth terminal of the relay, the data processing unit is configured to control the relay to conduct between the first terminal and the fourth terminal after power is applied, and send the first audio data or the second audio data to the power amplification unit, and the power amplification unit is configured to power amplify the first audio data or the second audio data and send the amplified first audio data or the second audio data to the relay.

7. The acoustic device according to claim 5, wherein the first data receiving unit is connected to the data processing unit through a data converting unit for converting the first audio data from an analog signal to a digital signal.

8. An audio playback system comprising an acoustic device as claimed in any one of claims 1 to 7.

9. The system of claim 8, wherein the audio playback system further comprises: the constant-voltage backup device is used for receiving second audio data from the audio source device and carrying out backup processing on the second audio data to obtain first audio data;

The constant voltage backup device is connected with the first data receiving unit of the sound equipment through a data transmission line and is used for sending the first audio data to the first data receiving unit.

10. The system of claim 9, wherein the constant pressure backup device comprises: a broadcasting host and a network power amplifier;

The broadcast host is connected with the audio source equipment and is used for receiving the second audio data sent by the audio source equipment and carrying out backup processing on the second audio data to obtain the first audio data;

The network power amplifier is connected with the broadcasting host and is used for sending the first audio data sent by the broadcasting host to the network power amplifier for power amplification;

The network power amplifier is connected with the first data receiving unit of the sound equipment through a data transmission line and is used for sending the first audio data after power amplification to the first data receiving unit of the sound equipment.

11. The system according to claim 9 or 10, wherein a second data receiving unit of the audio device is connected to the audio source device through a network host, and is configured to receive the second audio data sent by the audio source device.