Audio system and audio equipment

Abstract

The embodiment of the utility model belongs to the technical field of communication equipment, and relates to an audio system and audio equipment, and the audio system comprises a first input module, a second input module, a position recognition circuit, an audio processing module, a sound effect processing module and an audio output module. The first input module inputs multi-source audio data to the audio processing module; the position identification circuit identifies a loudspeaker coordinate position and inputs the loudspeaker coordinate position to the audio processing module; the audio processing module processes and adjusts the multi-source audio data and the loudspeaker coordinate position and inputs the multi-source audio data and the loudspeaker coordinate position to the sound effect processing module; the second input module inputs the generated digital audio signal to the sound effect processing module; the sound effect processing module inputs the generated output digital audio signal to the audio output module; the audio output module controls the loudspeaker to produce sound according to the corresponding relation between the output analog audio signal and the loudspeaker. According to the invention, a plurality of audio signals can be effectively received to control the loudspeaker to produce sound normally.

Description

Technical Field

[0001] This application relates to the technical field of communication devices, and more specifically, to an audio system and an audio device. Background Art

[0002] An audio system is a system that drives audio devices according to received audio signals to achieve speaker sound. An audio system generally includes an input interface, an audio processing circuit, a sound effect processing circuit, and an audio output circuit. Among them, the input interface receives audio signals input by an external device connected to the input interface. The audio processing circuit processes the received audio signals. The sound effect processing circuit performs sound effect processing on the processed audio signals. Finally, the audio output circuit controls the audio device to sound according to the processed audio signals.

[0003] However, when controlling the speaker to sound, since there is only one input interface in the above audio system, only fixed audio signals can be received. When other audio signals need to be received, the input interface and the external input device need to be replaced, which is troublesome to operate. At the same time, since the speakers of the audio system need to perform stereo surround sound, the speakers need to correspond to the audio signals. If multiple input interfaces and external input devices are set to receive different audio signals, when the placement position of the speakers changes, it is difficult to effectively correspond the audio signals to the speakers, resulting in the speakers being unable to finally form stereo surround sound and affecting the normal operation of the audio system. Summary of the Utility Model

[0004] The technical problem to be solved by the embodiments of this application is how to control the speakers to sound normally after receiving multiple audio signals.

[0005] To solve the above technical problem, the embodiments of this application provide an audio system, which adopts the following technical solutions:

[0006] An audio system includes: a first input module, a second input module, a position recognition circuit, an audio processing module, a sound effect processing module, and an audio output module. Among them, the audio output module includes several speakers;

[0007] The first input module is used to receive multi-source input signals, and perform decoding and encoding or signal conversion processing to generate multi-source audio signals;

[0008] The second input module is used to receive microphone analog audio signals and / or guitar analog audio signals, and perform signal amplification and analog-to-digital conversion processing to generate input digital audio signals; the position recognition circuit is connected to the induction device on the speaker, and is used to obtain the induction information of the induction device and calculate the speaker coordinate position corresponding to the speaker;

[0009] The audio processing module is connected to the first input module and the position recognition circuit, and is configured to decode and encode the multi-source audio data to generate a multi-channel digital audio signal, and adjust the correspondence between the multi-channel digital audio signal and the multi-channel sound speakers according to the speaker coordinate positions;

[0010] The sound effect processing module is connected to the audio processing module and the second input module, and is configured to perform volume adjustment processing and sound effect adjustment processing on the adjusted multi-channel digital audio signal and / or the input digital audio signal to generate an output digital audio signal;

[0011] The audio output module is connected to the sound effect processing module, and is configured to convert the output digital audio signal into an output analog audio signal, amplify the power of the output analog audio signal, and control the speakers to emit sound according to the correspondence between the output analog audio signal and the speakers.

[0012] Further, the first input module includes a Bluetooth input unit, an optical fiber input unit, and a multimedia input unit;

[0013] The Bluetooth input unit is configured to perform Bluetooth connection with a mobile device, as well as perform analog audio connection and USB connection with an audio device, receive and process the first audio data transmitted by the mobile device and / or the audio device, and output the processed data to the audio processing module;

[0014] The optical fiber input unit is configured to establish an optical and electrical signal connection with an external terminal device through an optical fiber, receive and process the second audio data transmitted by the external terminal device, and output the processed data to the audio processing module;

[0015] The multimedia input unit is configured to connect to an external data source device through a multimedia interface cable, receive and process the third audio data transmitted by the external data source device, and output the processed data to the audio processing module.

[0016] Further, the Bluetooth input unit includes a Bluetooth antenna, an analog audio circuit, a USB circuit, and a Bluetooth circuit;

[0017] The Bluetooth antenna performs Bluetooth connection with the mobile device, and is configured to receive the propagated audio signal transmitted in the air and transmit the propagated audio signal to the Bluetooth circuit;

[0018] The analog audio circuit is connected to the audio device through an analog audio interface cable, and is configured to receive an analog audio signal and transmit the analog audio signal to the Bluetooth circuit;

[0019] The USB circuit and the audio device are connected through a USB interface cable, which is used to receive a USB audio signal and transmit the USB audio signal to the Bluetooth circuit;

[0020] The Bluetooth circuit is used to perform decoding processing and encoding processing on the propagated audio signal and the USB audio signal, and / or perform analog-to-digital conversion and encoding processing on the analog audio signal to obtain the first audio data.

[0021] Further, the optical fiber input unit includes an optical fiber circuit; the optical fiber circuit is used to receive an audio optical signal, convert the audio optical signal into an audio electrical signal, and use the audio electrical signal as the second audio data.

[0022] Further, the multimedia input unit includes a multimedia interface circuit; the multimedia interface circuit is used to receive a multimedia audio signal and perform decoding processing on the multimedia audio signal to obtain the third audio data.

[0023] Further, the second input module includes an analog input circuit, a signal amplification circuit, and an analog-to-digital conversion circuit;

[0024] The analog input circuit is used to receive a microphone analog audio signal and / or a guitar analog audio signal;

[0025] The signal amplification circuit is connected to the analog input circuit and is used to amplify the microphone analog audio signal and / or the guitar analog audio signal;

[0026] The analog-to-digital conversion circuit is connected to the signal amplification circuit and is used to convert the amplified microphone analog audio signal and / or the amplified guitar analog audio signal into the input digital audio signal.

[0027] Further, the audio output module includes a digital-to-analog conversion circuit, a power amplification circuit, and a multi-channel speaker;

[0028] The digital-to-analog conversion circuit is used to convert the received output digital audio signal into an output analog audio signal;

[0029] The power amplification circuit is connected to the digital-to-analog conversion circuit and is used to amplify the signal power of the output analog audio signal;

[0030] The multi-channel speaker is connected to the power amplification circuit and is used to drive a speaker to emit sound according to the output analog audio signal after signal power amplification.

[0031] Further, the multi-channel speaker includes a left channel speaker, a right channel speaker, a center speaker, a left surround speaker, a right surround speaker, and a subwoofer;

[0032] The multi-channel audio system controls the left-channel speaker, the right-channel speaker, the center speaker, the left surround speaker, the right surround speaker, and the subwoofer to emit corresponding sounds according to the corresponding relationship in the output analog audio signal after the signal power is amplified.

[0033] Further, the audio system further includes a power management circuit, which is connected to the first input module, the second input module, the position recognition circuit, the audio processing module, the sound effect processing module, and the audio output module, and supplies power to the first input module, the second input module, the position recognition circuit, the audio processing module, the sound effect processing module, and the audio output module.

[0034] To solve the above technical problems, an embodiment of the present application further provides an audio device, including an audio system and a control device. The control device is used to control the play switch, adjust the play volume, and adjust the play sound effect mode of the audio system, and the audio system adopts the audio system described in any one of the above.

[0035] Compared with the prior art, the embodiment of the present application mainly has the following beneficial effects:

[0036] In this embodiment, an audio system including a first input module, a second input module, a position recognition circuit, an audio processing module, a sound effect processing module, and an audio output module is provided. The first input module inputs the obtained multi-source audio data into the audio processing module for processing to obtain a channel digital audio signal, and the position recognition circuit is used to identify the corresponding speaker coordinate positions of the speakers to adjust the corresponding relationship between the channel digital audio signal and the speakers, and after adjustment, the channel digital audio signal is input to the sound effect processing module for sound effect processing; the second input module processes the received microphone audio signal and / or guitar audio signal into a digital audio signal and inputs it to the sound effect processing module for sound effect processing; the sound effect processing module processes the channel digital audio signal and the input digital audio signal to obtain an output digital audio signal, and amplifies the output analog audio signal in power, and then the audio output module processes the output digital audio signal to obtain an output analog audio signal. At the same time, the audio output module controls the corresponding speakers to emit sounds according to the corresponding relationship between the output analog audio signal and the speakers. Thus, it effectively realizes receiving multiple audio signals to control the speakers to emit normal sounds. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] To more clearly illustrate the solutions in this application, the following will briefly introduce the accompanying drawings required in the description of the embodiments. Obviously, the accompanying drawings in the following description are some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on these drawings.

[0038] Figure 1 Schematic diagram of the module structure of the audio system according to the embodiment of this application;

[0039] Figure 2 Schematic diagram of the connection relationship between the first input module and the audio processing module of the audio system according to the embodiment of this application;

[0040] Figure 3 Schematic diagram of the structure of the Bluetooth input unit of the audio system according to the embodiment of this application;

[0041] Figure 4 Schematic diagram of the structure of the second input module of the audio system according to the embodiment of this application;

[0042] Figure 5 Schematic diagram of the structure of the audio output module of the audio system according to the embodiment of this application;

[0043] Figure 6 Schematic diagram of the structure of the multi-channel speaker of the audio system according to the embodiment of this application;

[0044] Reference numerals: first input module 1, second input module 2, position recognition circuit 3, audio processing module 4, sound effect processing module 5, audio output module 6, power management circuit 7, Bluetooth input unit 11, optical fiber input unit 12, multimedia input unit 13, analog input circuit 21, signal amplification circuit 22, analog-to-digital conversion circuit 23, digital-to-analog conversion circuit 61, power amplification circuit 62, multi-channel speaker 63, Bluetooth antenna 111, analog audio circuit 112, USB circuit 113, Bluetooth circuit 114, optical fiber circuit 121, multimedia interface circuit 131, left channel speaker 631, right channel speaker 632, center speaker 633, left surround speaker 634, right surround speaker 635, subwoofer 636. Detailed implementation manners

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification and claims of this application or the above drawings are used to distinguish different objects and not to describe a specific order.

[0046] Reference herein to "embodiments" means that a particular feature, structure, or characteristic described in connection with the embodiments can be included in at least one embodiment of this application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0047] Reference Figure 1 , the audio system of this application includes: a first input module 1, a second input module 2, a position recognition circuit 3, an audio processing module 4, a sound effect processing module 5, and an audio output module 6, wherein, the audio output module 6 includes a plurality of speakers;

[0048] The first input module 1 is used to receive multi-source input signals, and perform decoding and encoding or signal conversion processing to generate multi-source audio signals;

[0049] The second input module 2 is used to receive microphone analog audio signals and / or guitar analog audio signals, and perform signal amplification and analog-to-digital conversion processing to generate input digital audio signals;

[0050] The position recognition circuit 3 is used to be connected to the sensing device on the speaker, and is used to obtain the sensing information of the sensing device and calculate the speaker coordinate position corresponding to the speaker;

[0051] The audio processing module 4 is connected to the first input module 1 and the position recognition circuit 3, and is used to perform decoding and encoding processing on the multi-source audio data to generate multi-channel digital audio signals, and adjust the corresponding relationship between the multi-channel digital audio signals and the multi-channel sound speakers according to the speaker coordinate positions;

[0052] The sound effect processing module 5 is connected to the audio processing module 4 and the second input module 2, and is used to perform volume adjustment processing and sound effect adjustment processing on the adjusted multi-channel digital audio signals and / or the input digital audio signals to generate output digital audio signals;

[0053] The audio output module 6 is connected to the sound effect processing module 5, and is configured to convert the output digital audio signal into an output analog audio signal, amplify the power of the output analog audio signal, and control the speaker to emit sound according to the corresponding relationship between the output analog audio signal and the speaker.

[0054] In this embodiment, several speakers of the audio output module 6 are centrally installed in the multi-channel audio 63. The sensing device is a gyroscope, which is installed on the multi-channel audio 63. The position recognition circuit 3 is connected to the gyroscope. The multi-channel audio 63 is provided with an initial position, and the initial position corresponds to the initial coordinates of each speaker. When the gyroscope detects that the multi-channel audio 63 rotates, for example, rotates 90 degrees, the gyroscope will send the detected rotation angle to the position recognition circuit 3. The position recognition circuit 3 includes a microprocessor, and the microprocessor calculates the coordinates corresponding to the speaker after rotation according to the rotation angle, the initial coordinates of the speaker, and a preset algorithm, so as to obtain the coordinate position of the speaker; the audio processing module 4 includes a decoder and an encoder, and the audio signal is decoded by the decoder and re-encoded by the encoder to form a digital audio signal. In this embodiment, after the first audio data, the second audio data, and the third audio data are processed by the audio processing module 4, the generated multi-channel digital audio signal is a 5.1-channel digital audio signal, and the 5.1-channel digital audio signal is applied to the speakers of the audio output module 6. Refer to Figure 6 , the speakers of the audio output module 6 include a left-channel speaker 631, a right-channel speaker 632, a center speaker 633, a left surround speaker 634, a right surround speaker 635, and a subwoofer 636. The 5.1-channel digital audio signal corresponds to a left-channel audio signal, a right-channel audio signal, a center audio signal, a left surround audio signal, a right surround audio signal, and a subwoofer audio signal. Among them, the left-channel audio signal corresponds to the left-channel speaker 631, the right-channel audio signal corresponds to the right-channel speaker 632, the center audio signal corresponds to the center speaker 633, the left surround audio signal corresponds to the left surround speaker 634, the right surround audio signal corresponds to the right surround speaker 635, and the subwoofer audio signal corresponds to the subwoofer 636. Each audio signal in the 5.1 digital audio signal and the corresponding speaker are in a one-to-one correspondence relationship;

[0055] The sound effect processing module 5 is an audio DSP sound effect processing circuit. The processing of digital audio signals by the audio DSP sound effect processing circuit at least includes filtering, enhancement, and spectrum analysis. Filtering is the step of filtering out the clutter in the waveform of the digital audio signal. By filtering out the clutter in the digital audio signal, the noise in the digital audio signal is eliminated. After the filtering step, the remaining digital audio signal is the effective digital audio signal. The enhancement processing includes dynamic range compression, automatic gain control, and noise control. Dynamic range compression is used to reduce the range difference between the highest volume and the lowest volume of the effective digital audio signal. Automatic gain control is used to adjust the gain of the digital audio signal to maintain a constant output volume level. Noise control is used to further eliminate the noise in the digital audio signal. Spectrum analysis is the step of analyzing and adjusting the frequency of the digital audio signal. By adjusting the frequency of the digital audio signal, a good sound effect can be obtained.

[0056] In this embodiment, an audio system including a first input module 1, a second input module 2, a position recognition circuit 3, an audio processing module 4, a sound effect processing module 5, and an audio output module 6 is provided. The first input module 1 inputs the acquired multi-source audio data into the audio processing module 4 for processing to obtain a channel digital audio signal, and the position recognition circuit is used to identify the speaker coordinate position corresponding to the speaker to adjust the correspondence between the channel digital audio signal and the speaker, and after adjustment, the channel digital audio signal is input to the sound effect processing module 5 for sound effect processing; the second input module 2 processes the received microphone audio signal and / or guitar audio signal into a digital audio signal and inputs it to the sound effect processing module 5 for sound effect processing; the sound effect processing module 5 processes the channel digital audio signal and the input digital audio signal to obtain an output digital audio signal, and amplifies the output analog audio signal in power, and then the audio output module 6 processes the output digital audio signal to obtain an output analog audio signal. At the same time, the audio output module 6 controls the corresponding speaker to emit sound according to the correspondence between the output analog audio signal and the speaker. Thus, effectively receiving multiple audio signals to control the speaker to emit sound normally is realized.

[0057] In an alternative embodiment of this embodiment, refer to Figure 2 , the first input module 1 includes a Bluetooth input unit 11, an optical fiber input unit 12, and a multimedia input unit 13.

[0058] The Bluetooth input unit 11 is used to establish a Bluetooth connection with a mobile device, and an analog audio connection and a USB connection with an audio device, receive and process the first audio data transmitted by the mobile terminal and / or the audio device, and output it to the audio processing module 4; the first audio data is Bluetooth processed audio data.

[0059] The optical fiber input unit 12 is used to establish an optoelectronic signal connection with an external terminal device through an optical fiber, receive and process the second audio data transmitted by the external terminal device, and output it to the audio processing module 4; the second audio data is optoelectronically processed audio data.

[0060] The multimedia input unit 13 is used to connect to an external data source device through a multimedia interface line, receive and process the third audio data transmitted by the external data source device, and output it to the audio processing module 4; the third audio data is multimedia audio data.

[0061] In this embodiment, the mobile device refers to mobile portable devices such as mobile phones and MP3 players, all of which are equipped with Bluetooth connection functions. The audio device refers to a device with an analog audio interface, such as a 3.5mm JACK analog audio input interface, and a device with a USB connection port, such as a computer, a mobile phone, and a recording device. The external terminal device refers to a DVD player with an optical fiber interface, and the external data source device refers to devices such as a computer, a digital audio player, and a television, all of which are equipped with a multimedia interface.

[0062] In this embodiment, the acquisition of the first audio data, the second audio data, and the third audio data is in a parallel order. In specific implementation, it is possible to acquire the first audio data, the second audio data, and the third audio data simultaneously, or it is possible to acquire one or two of the first audio data, the second audio data, and the third audio data. When the first audio data, the second audio data, and the third audio data are acquired simultaneously, the audio processing module 4 can perform sequential processing in the order of the first audio data, the second audio data, and the third audio data. When the first audio data, the second audio data, and the third audio data are not acquired simultaneously, the audio processing module 4 can process the first audio data, the second audio data, and the third audio data in chronological order.

[0063] In this embodiment, the Bluetooth input unit 11, the optical fiber input unit 12, and the multimedia input unit 13 are connected to the audio processing module 4, so that the audio processing module 4 can process the first audio data, the second audio data, and the third audio data simultaneously or in sequence to achieve multi-signal input.

[0064] In another optional embodiment of this embodiment, refer to Figure 3 , the Bluetooth input unit 11 includes a Bluetooth antenna 111, an analog audio circuit 112, a USB circuit 113, and a Bluetooth circuit 114;

[0065] The Bluetooth antenna 111 is Bluetooth-connected to the mobile device, and is configured to receive the propagated audio signal transmitted in the air and transmit the propagated audio signal to the Bluetooth circuit 114;

[0066] The analog audio circuit 112 is connected to the audio device through an analog audio interface line, and is configured to receive an analog audio signal and transmit the analog audio signal to the Bluetooth circuit 114;

[0067] The USB circuit 113 is connected to the audio device through a USB interface line, and is configured to receive a USB audio signal and transmit the USB audio signal to the Bluetooth circuit 114;

[0068] The Bluetooth circuit 114 is configured to perform decoding processing and encoding processing on the propagated audio signal and the USB audio signal, and / or perform analog-to-digital conversion and encoding processing on the analog audio signal to obtain the first audio data.

[0069] In this embodiment, the Bluetooth antenna 111 is a wireless transceiver device that is matched with the Bluetooth circuit 114. The Bluetooth circuit 114 is provided with a radio frequency matching circuit corresponding to the Bluetooth antenna 111. The radio frequency matching circuit is used to match the propagated audio signal propagating in the air, and then the Bluetooth antenna 111 receives it. Usually, the emission source of the propagated audio signal is a mobile device connected to Bluetooth;

[0070] In addition to the radio frequency matching circuit, the Bluetooth circuit 114 is also provided with a main control chip including decoding function, encoding function and analog-to-digital conversion function, and the main control chip is used to process the propagated audio signal, analog audio signal and USB audio signal; in this embodiment, both decoding and encoding are conventional signal processing behaviors after data is transmitted between modules. Data is compressed through decoding and encoding for module transmission, and at the same time, noise can be effectively removed to ensure the validity of the signal.

[0071] The analog audio circuit 112 is a 3.5mm JACK mode audio input circuit, and its corresponding signal source is a microphone or an audio player. The analog audio signal generated by the microphone or audio player is a signal representing the sound intensity by continuous voltage amplitude change. Both the input end and the output end of the analog audio circuit 112 are analog interfaces, and the analog audio circuit 112 and the Bluetooth circuit 114 can be connected through an analog line;

[0072] The USB circuit 113 adopts the differential signal transmission principle, separates and transmits the USB audio signal through two different signal lines, and the USB circuit 113 adopts a USB interface to connect to an external audio device through a USB connection line, so as to obtain the USB audio signal transmitted by the external audio device. In this embodiment, the above-mentioned Bluetooth circuit 114, analog audio circuit 112 and USB circuit 113 all adopt existing conventional circuit designs.

[0073] In this embodiment, by connecting the Bluetooth antenna 111, analog audio circuit 112 and USB circuit 113 to the Bluetooth circuit 114, the first audio data can be effectively obtained through different signal sources and signal interface circuits.

[0074] In another optional embodiment of this embodiment, the optical fiber input unit 12 includes an optical fiber circuit; the optical fiber circuit is used to receive an audio optical signal, convert the audio optical signal into an audio electrical signal, and use the audio electrical signal as the second audio data.

[0075] In this embodiment, the optical fiber circuit receives the audio optical signal in the form of an optical frequency through an optical fiber link. The audio optical signal can be generated by a terminal device connected to the optical fiber circuit sending an audio file to the optical fiber circuit. The optical fiber circuit includes an optical-to-electrical frequency conversion circuit, which converts the audio optical signal into an audio electrical signal through the optical-to-electrical frequency conversion circuit, and uses the audio electrical signal as the second audio data. In addition to the optical fiber circuit, the optical fiber input unit 12 further includes a first signal transmission circuit for transmitting the audio electrical signal. The first signal transmission circuit is connected to the audio processing module 4, and the audio electrical signal is transmitted to the audio processing module 4 through the first signal transmission circuit for signal processing. In this embodiment, the above-mentioned optical fiber circuit and first signal transmission circuit both adopt existing conventional circuit designs.

[0076] In this embodiment, by setting the optical fiber input unit 12 including the optical fiber circuit, the received audio optical signal can be effectively converted into an audio electrical signal, so as to be conveniently transmitted to the audio processing module 4 for processing.

[0077] In another optional embodiment of this embodiment, the multimedia input unit 13 includes a multimedia interface circuit; the multimedia interface circuit is used to receive a multimedia audio signal and perform decoding processing on the multimedia audio signal to obtain the third audio data.

[0078] In this embodiment, the multimedia interface circuit is an HDMI circuit. The HDMI circuit can be connected to multimedia devices such as a television set, a set-top box, a computer, and a game console. The multimedia audio signal received by the multimedia interface circuit can be an audio file played by a television set or a computer, or the audio data of the sound in a video file played by a set-top box, a computer, or a game console. The multimedia interface circuit includes at least an identification circuit and a decoder. The type of the received multimedia audio signal is identified by the identification circuit, and decoding processing is performed by the decoder. In this embodiment, the above-mentioned identification circuit and decoder both adopt existing conventional circuit designs.

[0079] In this embodiment, by providing a multimedia input unit 13 including a multimedia interface circuit, the acquired multimedia audio signal can be effectively processed to facilitate signal transmission.

[0080] In another alternative embodiment of this embodiment, referring to Figure 4 , the second input module 2 includes an analog input circuit 21, a signal amplification circuit 22, and an analog-to-digital conversion circuit 23;

[0081] The analog input circuit 21 is used to receive a microphone analog audio signal and / or a guitar analog audio signal;

[0082] The signal amplification circuit 22 is connected to the analog input circuit 21 and is used to amplify the microphone analog audio signal and / or the guitar analog audio signal;

[0083] The analog-to-digital conversion circuit 23 is connected to the signal amplification circuit 22 and is used to convert the amplified microphone analog audio signal and / or the amplified guitar analog audio signal into the input digital audio signal.

[0084] In this embodiment, the analog input circuit 21 is an XLR & 6.5mm JACK input circuit. The interfaces of the XLR & 6.5mm JACK input circuit are an XLR interface and a 6.5mm JACK interface. The XLR interface is used to dock professional audio equipment, and the 6.5mm JACK interface is used to dock common audio equipment such as microphones. In this embodiment, the signal sources corresponding to the analog input circuit 21 are a microphone and a guitar;

[0085] The signal amplification circuit 22 amplifies the amplitude of the input audio signal by increasing the gain in the circuit. In specific implementation, the signal amplification multiple of the signal amplification circuit 22 can be adjusted by itself. In this embodiment, the amplification multiple of the signal amplification circuit 22 is 20, and corresponding adjustment can be made according to the actual situation;

[0086] The function of the analog-to-digital conversion circuit 23 is to convert the analog audio signal into a digital audio signal. In this embodiment, both the microphone audio signal and the guitar audio signal belong to the analog audio signal.

[0087] In this embodiment, by setting the second input module including the analog input circuit 21, the signal amplification circuit 22, and the analog-to-digital conversion circuit 23, the analog audio signals input by professional audio devices such as microphones and guitars can be effectively converted into digital audio signals that are convenient for processing and transmission.

[0088] In another alternative embodiment of this embodiment, refer to Figure 5 , the audio output module 6 includes a digital-to-analog conversion circuit 61, a power amplification circuit 62, and a multi-channel speaker 63;

[0089] The digital-to-analog conversion circuit 61 is used to convert the received output digital audio signal into an output analog audio signal;

[0090] The power amplification circuit 62 is connected to the digital-to-analog conversion circuit 61 and is used to amplify the signal power of the output analog audio signal;

[0091] The multi-channel speaker 63 is connected to the power amplification circuit 62 and is used to drive the speaker to emit sound according to the output analog audio signal after signal power amplification.

[0092] In this embodiment, the function of the digital-to-analog conversion circuit 61 is to convert the digital audio signal into an analog audio signal. In this embodiment, the analog-to-digital conversion circuit 23 and the digital-to-analog conversion circuit 61 are two circuits for the interchange of digital audio signals and analog audio signals. Since the analog audio signal is input from the input end and output from the output end, the analog-to-digital conversion circuit 23 is generally arranged in the input part of the system, and the digital-to-analog conversion circuit 61 is generally arranged in the output part of the system;

[0093] The power amplification circuit 62 is used to amplify the output analog audio signal to a sufficient level so that the analog audio signal can effectively drive the multi-channel speaker 63; the multi-channel speaker 63 is the output terminal of the audio system, including speakers or horns. A control chip is arranged inside the multi-channel speaker 63 to receive the output analog audio signal and drive the horn to emit sound according to the output analog audio signal.

[0094] In this embodiment, by setting the audio output module including the digital-to-analog conversion circuit 61, the power amplification circuit 62, and the multi-channel speaker 63, the multi-channel speaker 63 can be effectively driven to output sound according to the output analog audio signal.

[0095] In another alternative embodiment of this embodiment, refer to Figure 6, the multi-channel audio 63 includes a left-channel speaker 631, a right-channel speaker 632, a center speaker 633, a left surround speaker 634, a right surround speaker 635, and a subwoofer 636;

[0096] The multi-channel audio 63 controls the left-channel speaker 631, the right-channel speaker 632, the center speaker 633, the left surround speaker 634, the right surround speaker 635, and the subwoofer 636 to emit corresponding sounds according to the corresponding relationship in the output analog audio signal after the signal is power-amplified.

[0097] In this embodiment, the left-channel speaker 631, the right-channel speaker 632, the center speaker 633, the left surround speaker 634, and the right surround speaker 635 are arranged in an X shape on the same horizontal plane. The left-channel speaker 631 is located at the bottom left of the plane, the right-channel speaker 632 is located at the bottom right of the plane, the center speaker 633 is located in the middle of the plane, the left surround speaker 634 is located at the top left of the plane, and the right surround speaker 635 is located at the top right of the plane; the subwoofer 636 is located behind the left-channel speaker 631, the right-channel speaker 632, the center speaker 633, the left surround speaker 634, and the right surround speaker 635; the output analog audio signal includes a left-channel audio signal, a right-channel audio signal, a center audio signal, a left surround audio signal, a right surround audio signal, and a subwoofer audio signal. Among them, the left-channel audio signal corresponds to the left-channel speaker 631, the right-channel audio signal corresponds to the right-channel speaker 632, the center audio signal corresponds to the center speaker 633, the left surround audio signal corresponds to the left surround speaker 634, the right surround audio signal corresponds to the right surround speaker 635, and the subwoofer audio signal corresponds to the subwoofer 636.

[0098] In specific implementation, since the multi-channel audio 63 may rotate during transportation, when rotating, the corresponding relationship between the above speakers and the plane position will change. Therefore, each speaker of the multi-channel audio 63 is provided with a corresponding device identifier, and a plane coordinate system is constructed with the center speaker as the origin. The left-channel speaker 631, the right-channel speaker 632, the left surround speaker 634, and the right surround speaker 635 are all represented by coordinates for their positions. When the multi-channel audio 63 rotates, the coordinates of the left-channel speaker 631, the right-channel speaker 632, the left surround speaker 634, and the right surround speaker 635 can be changed through the position recognition circuit 3 for device tracking, so as to perform corresponding control according to the corresponding audio signals. The above control method is not limited to the speaker arrangement structure of the multi-channel audio 63 in this embodiment, and can also be applied to the distributed speaker setting structure in broad areas such as indoors or in a vehicle.

[0099] In this embodiment, a multi-channel audio system 63 including a left-channel speaker 631, a right-channel speaker 632, a center speaker 633, a left surround speaker 634, a right surround speaker 635, and a subwoofer 636 is provided, so that sound can be emitted respectively according to the corresponding relationship in the output analog audio signal to obtain a good sound output effect.

[0100] In another alternative embodiment of this embodiment, the audio system further includes a power management circuit 7, which is connected to the first input module 1, the second input module 2, the position recognition circuit 3, the audio processing module 4, the sound effect processing module 5, and the audio output module 6, and powers the first input module 1, the second input module 2, the position recognition circuit 3, the audio processing module 4, the sound effect processing module 5, and the audio output module 6.

[0101] In this embodiment, the power management circuit 7 includes a battery, and the battery can be a storage battery. The power management circuit 7 is connected to the control switch of the control device, and the operation and shutdown of the entire audio system are controlled through the control switch.

[0102] In this embodiment, a power management circuit is provided and connected to the first input module 1, the second input module 2, the position recognition circuit 3, the audio processing module 4, the sound effect processing module 5, and the audio output module 6, thereby effectively ensuring the normal operation of the audio system.

[0103] An embodiment of the present application further provides an audio device, including an audio system and a control device. The control device is used to control the play switch, adjust the play volume, and adjust the play sound effect mode of the audio system, and the audio system adopts the audio system described in any one of the above.

[0104] In this embodiment, by using an audio device with the audio system described in any one of the above, it can effectively receive multiple audio signals to control the speakers to emit sound normally.

[0105] Obviously, the embodiments described above are only a part of the embodiments of the present application, rather than all the embodiments. The accompanying drawings show the preferred embodiments of the present application, but do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of the present application more thorough and comprehensive. Although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing specific embodiments, or perform equivalent replacements on some of the technical features. Any equivalent structure directly or indirectly using the content of the specification and drawings of the present application in other related technical fields is equally within the scope of the patent protection of the present application.

Claims

1. An audio system, characterized in that: The audio system comprises: a first input module, a second input module, a position identification circuit, an audio processing module, a sound effect processing module and an audio output module, wherein the audio output module comprises a plurality of speakers; The first input module is used to receive multi-source input signals, and perform decoding and encoding or signal conversion processing to generate multi-source audio signals; The second input module is used to receive a microphone analog audio signal and / or a guitar analog audio signal, and perform signal amplification and analog-to-digital conversion processing to generate an input digital audio signal; the position recognition circuit is connected to the sensing device on the speaker, and is used to obtain sensing information of the sensing device and calculate the speaker coordinate position corresponding to the speaker; The audio processing module is connected to the first input module and the position identification circuit, and is used to decode and encode the multi-source audio data to generate a multi-channel digital audio signal, and adjust the correspondence between the multi-channel digital audio signal and the multi-channel audio speaker according to the speaker coordinate position; The sound effect processing module is connected to the audio processing module and the second input module, and is used to perform volume adjustment processing and sound effect adjustment processing on the adjusted multi-channel digital audio signal and / or the input digital audio signal to generate an output digital audio signal; The audio output module is connected to the sound effect processing module, and is used to convert the output digital audio signal into an output analog audio signal and amplify the power of the output analog audio signal, and control the speaker to make sound according to the corresponding relationship between the output analog audio signal and the speaker.

2. The audio system according to claim 1, characterized in that The first input module includes a Bluetooth input unit, an optical fiber input unit and a multimedia input unit; The Bluetooth input unit is used to perform Bluetooth connection with a mobile device, and to perform analog audio connection and USB connection with an audio device, receive and process the first audio data transmitted by the mobile device and / or the audio device, and output the first audio data to the audio processing module; The optical fiber input unit is used to establish an optical-electrical signal connection with an external terminal device through an optical fiber to receive and process the second audio data transmitted by the external terminal device and output it to the audio processing module; The multimedia input unit is used to connect to an external data source device via a multimedia interface line to receive and process the third audio data transmitted by the external data source device, and output the third audio data to the audio processing module.

3. The audio system according to claim 2, characterized in that The Bluetooth input unit includes a Bluetooth antenna, an analog audio circuit, a USB circuit and a Bluetooth circuit; The Bluetooth antenna is connected to the mobile device via Bluetooth to receive the propagation audio signal transmitted in the air and transmit the propagation audio signal to the Bluetooth circuit; The analog audio circuit and the audio device are connected via an analog audio interface line, for receiving an analog audio signal, and transmitting the analog audio signal to the Bluetooth circuit; The USB circuit and the audio device are connected via a USB interface cable, for receiving a USB audio signal, and transmitting the USB audio signal to the Bluetooth circuit; The Bluetooth circuit is used to decode and encode the propagated audio signal and the USB audio signal, and / or perform analog-to-digital conversion and encoding on the analog audio signal to obtain the first audio data.

4. The audio system according to claim 2, characterized in that The optical fiber input unit includes an optical fiber circuit; the optical fiber circuit is used to receive an audio optical signal, and convert the audio optical signal into an audio electrical signal, and use the audio electrical signal as the second audio data.

5. The audio system according to claim 2, characterized in that The multimedia input unit includes a multimedia interface circuit; the multimedia interface circuit is used to receive a multimedia audio signal and decode the multimedia audio signal to obtain the third audio data.

6. The audio system according to claim 1, characterized in that The second input module includes an analog input circuit, a signal amplification circuit and an analog-to-digital conversion circuit; The analog input circuit is used to receive a microphone analog audio signal and / or a guitar analog audio signal; The signal amplification circuit is connected to the analog input circuit and is used to amplify the microphone analog audio signal and / or the guitar analog audio signal; The analog-to-digital conversion circuit is connected to the signal amplification circuit and is used to convert the amplified microphone analog audio signal and / or the amplified guitar analog audio signal into the input digital audio signal.

7. The audio system according to claim 1, characterized in that The audio output module includes a digital-to-analog conversion circuit, a power amplifier circuit and a multi-channel speaker; The digital-to-analog conversion circuit is used to convert the received output digital audio signal into an output analog audio signal; The power amplifier circuit is connected to the digital-to-analog conversion circuit and is used to amplify the signal power of the output analog audio signal; The multi-channel audio system is connected to the power amplifier circuit and is used to drive the speaker to produce sound according to the output analog audio signal after the signal power is amplified.

8. The audio system according to claim 7, characterized in that The multi-channel speaker includes a left channel speaker, a right channel speaker, a center speaker, a left surround speaker, a right surround speaker and a bass speaker; The multi-channel speaker controls the left channel speaker, the right channel speaker, the center speaker, the left surround speaker, the right surround speaker and the subwoofer to produce corresponding sounds according to the corresponding relationship in the output analog audio signal after the signal power is amplified.

9. The audio system according to claim 1, characterized in that The audio system also includes a power management circuit, which is connected to the first input module, the second input module, the audio processing module, the sound effect processing module and the audio output module, and provides power to the first input module, the second input module, the audio processing module, the sound effect processing module and the audio output module.

10. An audio device, characterized in that: The audio device includes an audio system and a control device, wherein the control device is used to control the playback switch, adjust the playback volume, and adjust the playback sound effect mode of the audio system. The audio system adopts the audio system as described in any one of claims 1 to 9.

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