Audio processing circuit, device, karaoke device and microphone

Abstract

The utility model relates to an audio frequency processing circuit, equipment, karaoke equipment and microphone, the audio frequency processing circuit includes: power supply circuit is used for the audio frequency processing circuit power supply, audio interface circuit, the audio interface circuit includes multiple types of input interface, multiple types the input interface with multiple types of audio acquisition end corresponds, the audio interface circuit still links to each other with main control circuit, the audio interface circuit is used for with the audio data transmission of audio acquisition end collection to main control circuit, main control circuit is used for receiving the audio data and carries out audio frequency processing, storage circuit is used for storing the audio data, the utility model can connect multiple audio acquisition ends, is applicable to multiple occasions.

Description

Technical Field

[0001] This utility model relates to the field of audio processing, and in particular to an audio processing circuit, device, karaoke device and microphone. Background Technology

[0002] With the development of information technology and the Internet, individual users have higher demands for audio processing and audio entertainment, such as singing karaoke at home, recording their own voices, chatting online, and chatting in games. As a result, personal audio devices have emerged.

[0003] Existing personal audio devices are low-cost, have limited functionality, and low audio processing capabilities, making it difficult to meet the diverse needs of users. Utility Model Content

[0004] In order to solve the above-mentioned technical problems, or at least partially solve the above-mentioned technical problems, this utility model provides an audio processing circuit, device, karaoke device and microphone.

[0005] In a first aspect, this utility model provides an audio processing circuit, the audio processing circuit comprising:

[0006] A power supply circuit is used to supply power to the audio processing circuit.

[0007] An audio interface circuit is provided, which includes multiple types of input interfaces, each type of input interface corresponding to a different type of audio acquisition terminal. The audio interface circuit is also connected to a main control circuit and is used to transmit the audio data acquired by the audio acquisition terminal to the main control circuit.

[0008] The main control circuit is used to receive the audio data and perform audio processing;

[0009] A storage circuit for storing the audio data.

[0010] Optionally, the power supply circuit includes:

[0011] The first voltage conversion sub-circuit is used to convert the voltage provided by the external power supply into a first voltage.

[0012] The second voltage conversion sub-circuit is used to convert the voltage provided by the external power supply into a second voltage.

[0013] Optionally, the first voltage conversion sub-circuit includes:

[0014] The first converter has a first terminal connected to an external power supply, a second terminal grounded, a third terminal connected to a first voltage output interface, and a fourth terminal connected to an external power supply.

[0015] The first capacitor has its first terminal connected to the first terminal of the first converter, and its second terminal grounded.

[0016] The first inductor has its first terminal connected to the third terminal of the first converter;

[0017] The second capacitor has its first terminal connected to the second terminal of the first inductor, and its second terminal connected to the fifth terminal of the first converter.

[0018] The first resistor has its first terminal connected to the fifth terminal of the first converter, and its second terminal grounded.

[0019] The second resistor has its first end connected to the second end of the first inductor, and its second end connected to the fifth end of the first converter.

[0020] The third capacitor has its first terminal connected to the first terminal of the second resistor, and its second terminal grounded.

[0021] Optionally, the second voltage conversion sub-circuit includes:

[0022] The second converter has a first terminal connected to an external power supply, a second terminal grounded, a third terminal connected to a second voltage output interface, and a fourth terminal connected to an external power supply.

[0023] The fourth capacitor has its first terminal connected to the first terminal of the second converter, and its second terminal grounded.

[0024] The first terminal of the second inductor is connected to the third terminal of the second converter;

[0025] The fifth capacitor has its first terminal connected to the second terminal of the second inductor, and its second terminal connected to the fifth terminal of the second converter.

[0026] The third resistor has its first terminal connected to the fifth terminal of the second converter, and its second terminal grounded.

[0027] The fourth resistor has its first terminal connected to the second terminal of the second inductor, and its second terminal connected to the fifth terminal of the second converter.

[0028] The sixth capacitor has its first terminal connected to the first terminal of the fourth resistor, and its second terminal grounded.

[0029] Optionally, the audio interface circuit includes:

[0030] An audio power interface is connected to an external power source to supply power to the audio interface circuit.

[0031] The first USB input interface group is connected to the audio acquisition end via USB mode;

[0032] The first I2S input interface group is connected to the audio acquisition end via IS2 mode;

[0033] The first TDM input interface group is connected to the audio acquisition end via TDM mode;

[0034] The first SPDIF input interface group is connected to the audio acquisition end via SPDIF mode;

[0035] Multiple first backup input interface groups are connected to the audio acquisition end via backup mode;

[0036] The protocol conversion circuit is used to receive the raw data collected by the audio acquisition terminal through multiple interface groups, and convert the raw data into audio data through protocol conversion.

[0037] The USB output interface group is connected to the USB interface of the main control circuit and is used to transmit the audio data acquired by the audio acquisition terminal in USB mode to the main control circuit.

[0038] The I2S output interface group is used to transmit the audio data acquired by the audio acquisition terminal in I2S mode to the main control circuit.

[0039] The TDM output interface group is used to transmit the audio data acquired by the audio acquisition terminal in TDM mode to the main control circuit.

[0040] The SPDIF output interface group is used to transmit the audio data acquired by the SPDIF mode audio acquisition terminal to the main control circuit.

[0041] Multiple backup output interface groups are used to transmit the audio data acquired by the backup mode audio acquisition terminal to the main control circuit.

[0042] Optionally, the main control circuit includes:

[0043] The first main control power interface is connected to an external power supply and is used to supply power to the main control circuit.

[0044] The second main control power interface is connected to an external power supply and is used to supply power to the main control circuit.

[0045] The third main control power interface is connected to the first voltage output interface of the power circuit and is used to supply power to the main control circuit.

[0046] The fourth main control power interface is connected to the second voltage output interface of the power supply circuit and is used to supply power to the main control circuit.

[0047] The seventh capacitor has its first end connected to the first main control power interface and its second end grounded.

[0048] The eighth capacitor has its first terminal connected to the first main control power interface and its second terminal grounded.

[0049] The ninth capacitor has its first end connected to the first main control power interface and its second end grounded.

[0050] The tenth capacitor has its first terminal connected to the third main control power interface and its second terminal grounded.

[0051] The eleventh capacitor has its first terminal connected to the third main control power interface and its second terminal grounded.

[0052] The twelfth capacitor has its first end connected to the fourth main control power interface and its second end grounded.

[0053] The thirteenth capacitor has its first end connected to the fourth main control power interface and its second end grounded.

[0054] The fourteenth capacitor has its first end connected to the fourth main control power interface and its second end grounded.

[0055] The fifteenth capacitor has its first end connected to the fourth main control power interface and its second end grounded.

[0056] The sixteenth capacitor has its first end connected to the fourth main control power interface and its second end grounded.

[0057] The seventeenth capacitor has its first end connected to the fourth main control power interface and its second end grounded.

[0058] The eighteenth capacitor has its first end connected to the fourth main control power interface and its second end grounded.

[0059] The third inductor has its first end connected to the second voltage output interface of the power supply circuit, and its second end connected to the twenty-second pin of the main control chip.

[0060] The nineteenth capacitor has its first terminal connected to the second terminal of the third inductor, and its second terminal grounded.

[0061] The twentieth capacitor has its first end grounded and its second end connected to pin sixteen of the main control chip.

[0062] The twenty-first capacitor has its first terminal grounded.

[0063] The fifth resistor has its first end connected to the second end of the twenty-first capacitor, and its second end connected to the fifteenth pin of the main control chip.

[0064] The sixth resistor has its first end connected to the sixteenth pin of the main control chip, and its second end connected to the fifteenth pin of the main control chip.

[0065] The first crystal oscillator has its first terminal connected to the second terminal of the twenty-first capacitor, the second terminal grounded, its third terminal connected to the second terminal of the twentyth capacitor, and its fourth terminal grounded.

[0066] The main control chip has its 30th pin connected to the first main control power interface, its 31st, 17th, and 26th pins connected to the third main control power interface, its 8th, 38th, and 52nd pins connected to the second main control power interface, and its 4th, 14th, 19th, 27th, 34th, 42nd, 49th, 57th, 61st, 62nd, 63rd, and 64th pins connected to the fourth main control power interface.

[0067] The second USB input interface group is connected to the audio interface circuit and is used to receive audio data acquired by the USB mode audio acquisition terminal.

[0068] The second I2S input interface group is connected to the audio interface circuit and is used to receive audio data acquired by the audio acquisition terminal in I2S mode.

[0069] The second TDM input interface group is connected to the audio interface circuit and is used to receive audio data acquired by the audio acquisition terminal in TDM mode.

[0070] The second SPDIF input interface group is connected to the audio interface circuit and is used to receive audio data acquired by the audio acquisition terminal in SPDIF mode.

[0071] Multiple second backup input interface groups are connected to the audio interface circuit to receive audio data collected by the audio acquisition terminal in backup mode;

[0072] Multiple storage interfaces are connected to the storage circuitry;

[0073] Clock output interface, used to output clock.

[0074] Optionally, the storage circuit includes:

[0075] The seventh resistor has its first terminal connected to the first voltage output interface of the power supply circuit.

[0076] The memory chip has its first terminal connected to the second terminal of the seventh resistor, and the first terminal is also connected to the corresponding memory interface of the main control circuit. The second, third, fifth, and seventh terminals are connected to the corresponding memory interfaces of the main control circuit. The sixth terminal is connected to the clock output interface of the main control circuit. The fourth terminal is grounded, the ninth terminal is grounded, and the eighth terminal is connected to the first voltage output interface of the power supply circuit.

[0077] The twenty-second capacitor has its first terminal connected to the eighth terminal of the memory chip, and its second terminal grounded.

[0078] In a second aspect, an audio processing device is provided, including the audio processing circuitry as described in any of the preceding claims.

[0079] Thirdly, a karaoke device is provided, including the audio processing circuitry described in any of the preceding claims.

[0080] Fourthly, a microphone is provided, including:

[0081] Audio acquisition circuit, used to acquire audio;

[0082] The microphone also includes the audio processing circuitry described in any of the preceding claims.

[0083] This utility model provides an audio processing circuit, device, karaoke device, and microphone. The audio processing circuit includes: a power supply circuit for supplying power to the audio processing circuit; an audio interface circuit including multiple types of input interfaces, each corresponding to a different type of audio acquisition terminal, and the audio interface circuit is also connected to a main control circuit for transmitting audio data acquired by the audio acquisition terminal to the main control circuit; a main control circuit for receiving the audio data and performing audio processing; and a storage circuit for storing the audio data. In this utility model embodiment, the audio processing circuit includes an audio interface circuit that provides multiple types of input interfaces, which can be connected to corresponding types of audio acquisition terminals, such as microphones or radios. Therefore, the audio processing circuit of this utility model embodiment is applicable to various audio acquisition terminals and various occasions, meeting diverse user needs. Attached Figure Description

[0084] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.

[0085] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0086] Figure 1 The diagram shown is a structural schematic of an audio processing circuit according to an embodiment of the present invention.

[0087] Figure 2 The diagram shown is a structural schematic of the power supply circuit according to an embodiment of the present invention.

[0088] Figure 3 The diagram shown is a schematic diagram of the audio interface circuit according to an embodiment of the present invention.

[0089] Figure 4The diagram shown is a schematic diagram of the main control circuit of an embodiment of this utility model.

[0090] Figure 5 The diagram shown is a schematic diagram of the storage circuit according to an embodiment of the present invention.

[0091] Figure 6 The diagram shows a karaoke device and microphone according to this utility model. Detailed Implementation

[0092] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0093] Figure 1 The diagram shown is a structural schematic of an audio processing circuit according to an embodiment of this utility model. Figure 1 As shown, the audio processing circuit includes:

[0094] Power supply circuit 110 is used to supply power to the audio processing circuit;

[0095] The audio interface circuit 120 includes multiple types of input interfaces, each corresponding to a different type of audio acquisition terminal. The audio interface circuit 120 is also connected to the main control circuit 130. The audio interface circuit 120 is used to transmit the audio data acquired by the audio acquisition terminal to the main control circuit 130.

[0096] The main control circuit 130 is used to receive the audio data and perform audio processing;

[0097] Storage circuit 140 is used to store audio data.

[0098] In this practical embodiment, the audio processing circuit includes an audio interface circuit 120, which provides various types of input interfaces. These input interfaces can be connected to corresponding types of audio acquisition terminals, such as microphones or radios. In other words, the audio processing circuit of this utility model embodiment can be applied to various audio acquisition terminals and various occasions, and can meet various user needs.

[0099] Figure 2 The diagram shown is a structural schematic of the power supply circuit 110 according to an embodiment of the present invention. Figure 2 As shown, the power supply circuit 110 includes:

[0100] The first voltage VD1 conversion sub-circuit is used to convert the voltage provided by the external power supply into the first voltage VD1;

[0101] The second voltage VD2 conversion sub-circuit is used to convert the voltage provided by the external power supply into the second voltage VD2.

[0102] like Figure 2 As shown, the first voltage VD1 conversion sub-circuit includes:

[0103] The first converter U1 has its first terminal connected to an external power supply, its second terminal grounded, its third terminal connected to the output interface of the first voltage VD1, and its fourth terminal connected to an external power supply.

[0104] The first capacitor C1 has its first terminal connected to the first terminal of the first converter U1, and its second terminal grounded.

[0105] The first inductor L1 has its first terminal connected to the third terminal of the first converter U1;

[0106] The second capacitor C2 has its first terminal connected to the second terminal of the first inductor L1, and its second terminal connected to the fifth terminal of the first converter U1.

[0107] The first resistor R1 has its first end connected to the fifth terminal of the first converter U1, and its second end grounded.

[0108] The second resistor R2 has its first end connected to the second end of the first inductor L1, and its second end connected to the fifth end of the first converter U1.

[0109] The third capacitor C3 has its first terminal connected to the first terminal of the second resistor R2, and its second terminal grounded.

[0110] like Figure 2 As shown, the second voltage VD2 conversion sub-circuit includes:

[0111] The second converter U2 has its first terminal connected to an external power supply, its second terminal grounded, its third terminal connected to the output interface of the second voltage VD2, and its fourth terminal connected to an external power supply.

[0112] The fourth capacitor C4 has its first terminal connected to the first terminal of the second converter U2, and its second terminal grounded.

[0113] The first terminal of the second inductor L2 is connected to the third terminal of the second converter U2;

[0114] The first terminal of the fifth capacitor C5 is connected to the second terminal of the second inductor L2, and the second terminal is connected to the fifth terminal of the second converter U2.

[0115] The third resistor R3 has its first end connected to the fifth end of the second converter U2, and its second end grounded.

[0116] The first terminal of the fourth resistor R4 is connected to the second terminal of the second inductor L2, and the second terminal is connected to the fifth terminal of the second converter U2.

[0117] The sixth capacitor C6 has its first terminal connected to the first terminal of the fourth resistor R4, and its second terminal grounded.

[0118] Different audio acquisition terminals may require different operating voltages. Therefore, in this embodiment of the invention, the power supply circuit 110 can provide multiple voltages to allow different types of audio acquisition terminals to connect, thereby improving the applicability and occasions of the audio processing circuit in this embodiment of the invention.

[0119] Figure 3 The diagram shown is a schematic diagram of the audio interface circuit 120 according to an embodiment of the present invention. Figure 3 As shown, the audio interface circuit 120 includes:

[0120] The audio power interface VD3 is connected to an external power supply and is used to power the audio interface circuit 120.

[0121] The first USB input interface group is connected to the audio acquisition end via USB mode;

[0122] The first I2S input interface group is connected to the audio acquisition end via IS2 mode;

[0123] The first TDM input interface group is connected to the audio acquisition end via TDM mode;

[0124] The first SPDIF input interface group is connected to the audio acquisition end via SPDIF mode;

[0125] Multiple first backup input interface groups are connected to the audio acquisition end via backup mode;

[0126] The protocol conversion circuit is used to receive the raw data collected by the audio acquisition terminal through multiple interface groups, and convert the raw data into audio data through protocol conversion.

[0127] The USB output interface group is connected to the USB interface of the main control circuit 130 and is used to transmit the audio data acquired by the audio acquisition terminal in USB mode to the main control circuit 130.

[0128] The I2S output interface group is used to transmit the audio data acquired by the audio acquisition terminal in I2S mode to the main control circuit 130.

[0129] The TDM output interface group is used to transmit the audio data acquired by the TDM mode audio acquisition terminal to the main control circuit 130.

[0130] The SPDIF output interface group is used to transmit the audio data acquired by the SPDIF mode audio acquisition terminal to the main control circuit 130.

[0131] Multiple backup output interface groups are used to transmit the audio data acquired by the backup mode audio acquisition terminal to the main control circuit 130.

[0132] In this embodiment of the invention, an interface group refers to a group of interfaces, which can have multiple interfaces. For example, a USB input interface group includes four USB input interfaces, allowing simultaneous connection to four USB audio acquisition terminals. Figure 3 The ninth and tenth pins in the configuration.

[0133] The spare input interface group can refer to other types of interfaces not mentioned above. The spare input interface group of this utility model embodiment can be expanded to be applicable to more types of audio acquisition terminals.

[0134] The protocol conversion circuit of this utility model can be a protocol conversion chip in the prior art, a commercially available chip, or other circuits in the prior art. The protocol conversion circuit of this utility model embodiment also begins to adopt basic circuits such as AND gate, NOT gate, NAND gate, counter, and flip-flop, which will not be described in detail here.

[0135] Figure 4 The diagram shown is a schematic diagram of the main control circuit 130 according to an embodiment of the present invention. Figure 4 As shown, the main control circuit 130 includes:

[0136] The first main control power interface is connected to an external power supply and is used to supply power to the main control circuit 130.

[0137] The second main control power interface is connected to an external power supply and is used to supply power to the main control circuit 130.

[0138] The third main control power interface is connected to the first voltage VD1 output interface of the power circuit 110 and is used to supply power to the main control circuit 130.

[0139] The fourth main control power interface is connected to the second voltage VD2 output interface of the power circuit 110 and is used to supply power to the main control circuit 130.

[0140] The seventh capacitor C7 has its first terminal connected to the first main control power interface and its second terminal grounded.

[0141] The eighth capacitor, C8, has its first terminal connected to the first main control power interface and its second terminal grounded.

[0142] The ninth capacitor C9 has its first terminal connected to the first main control power interface and its second terminal grounded.

[0143] The tenth capacitor, C10, has its first terminal connected to the third main control power interface and its second terminal grounded.

[0144] The eleventh capacitor, C11, has its first terminal connected to the third main control power interface and its second terminal grounded.

[0145] The twelfth capacitor C12 has its first end connected to the fourth main control power interface and its second end grounded.

[0146] The thirteenth capacitor, C13, has its first end connected to the fourth main control power interface and its second end grounded.

[0147] The fourteenth capacitor, C14, has its first end connected to the fourth main control power interface and its second end grounded.

[0148] The fifteenth capacitor, C15, has its first end connected to the fourth main control power interface and its second end grounded.

[0149] The sixteenth capacitor, C16, has its first end connected to the fourth main control power interface and its second end grounded.

[0150] The seventeenth capacitor, C17, has its first terminal connected to the fourth main control power interface and its second terminal grounded.

[0151] The eighteenth capacitor, C18, has its first terminal connected to the fourth main control power interface and its second terminal grounded.

[0152] The third inductor L3 has its first end connected to the second voltage VD2 output interface of the power supply circuit 110, and its second end connected to the 22nd pin of the main control chip U4.

[0153] The nineteenth capacitor C19 has its first terminal connected to the second terminal of the third inductor L3, and its second terminal is grounded.

[0154] The twentieth capacitor, C20, has its first end grounded and its second end connected to pin sixteen of the main control chip U4.

[0155] The twenty-first capacitor, C21, has its first terminal grounded.

[0156] The fifth resistor R5 has its first end connected to the second end of the twenty-first capacitor C21, and its second end connected to the fifteenth pin of the main control chip U4.

[0157] The sixth resistor R6 has its first end connected to the sixteenth pin of the main control chip U4, and its second end connected to the fifteenth pin of the main control chip U4.

[0158] The first crystal oscillator Y1 has its first terminal connected to the second terminal of the twenty-first capacitor C21, and its second terminal grounded. Its third terminal is connected to the second terminal of the twenty-second capacitor C20, and its fourth terminal grounded.

[0159] The main control chip U4 has its 30th pin connected to the first main control power interface, its 31st, 17th, and 26th pins connected to the third main control power interface, its 8th, 38th, and 52nd pins connected to the second main control power interface, and its 4th, 14th, 19th, 27th, 34th, 42nd, 49th, 57th, 61st, 62nd, 63rd, and 64th pins connected to the fourth main control power interface.

[0160] The second USB input interface group is connected to the audio interface circuit 120 and is used to receive audio data acquired by the USB mode audio acquisition terminal.

[0161] The second I2S input interface group is connected to the audio interface circuit 120 and is used to receive audio data acquired by the audio acquisition terminal in I2S mode.

[0162] The second TDM input interface group is connected to the audio interface circuit 120 and is used to receive audio data acquired by the audio acquisition terminal in TDM mode.

[0163] The second SPDIF input interface group is connected to the audio interface circuit 120 and is used to receive audio data acquired by the audio acquisition terminal in SPDIF mode.

[0164] Multiple second backup input interface groups are connected to the audio interface circuit 120 and are used to receive audio data collected by the audio acquisition terminal in backup mode.

[0165] Multiple storage interfaces are connected to the storage circuitry;

[0166] Clock output interface, used to output clock.

[0167] The main control circuit 130 of this utility model may further include circuits for audio processing, such as filtering circuits, noise reduction circuits, and amplification circuits. These processing circuits may use basic circuits such as AND gates, NOT gates, NAND gates, counters, and flip-flops, or they may be filtering chips, amplification chips, or integrated circuits that integrate filtering, noise reduction, and amplification functions. These circuits and chips may be existing technologies or commercially available products, and will not be described in detail here.

[0168] The input interface group can be as follows Figure 4 The main control circuit shown includes pins 33, 35, 36, and 37, as well as pins 1, 2, 59, and 60.

[0169] Figure 5 The diagram shown is a schematic diagram of the storage circuit 140 according to an embodiment of the present invention. Figure 5As shown, the storage circuit 140 includes:

[0170] The seventh resistor R7 has its first end connected to the first voltage VD1 output interface of the power supply circuit 110.

[0171] The memory chip U5 has its first terminal connected to the second terminal of the seventh resistor R7. The first terminal is also connected to the corresponding memory interface of the main control circuit 130. The second, third, fifth, and seventh terminals are connected to the corresponding memory interfaces of the main control circuit 130. The sixth terminal is connected to the clock output interface of the main control circuit 130. The fourth terminal is grounded, the ninth terminal is grounded, and the eighth terminal is connected to the first voltage VD1 output interface of the power supply circuit 110.

[0172] The twenty-second capacitor C22 has its first terminal connected to the eighth terminal of the memory chip U5, and its second terminal grounded.

[0173] The memory chip U5 implemented in this utility model can be a basic circuit using AND gates, NOT gates, NAND gates, counters, flip-flops, etc., or it can be an integrated circuit. These circuits and chips can be existing technology or commercially available products, which will not be described in detail here.

[0174] The audio processing circuit of this invention includes an audio interface circuit 120, which provides various types of input interfaces that can be connected to corresponding types of audio acquisition terminals, such as microphones and radios. The main control circuit 130 of this invention provides corresponding interfaces, allowing it to receive and process audio data from different types of audio acquisition terminals. Therefore, the audio processing circuit of this invention is applicable to various audio acquisition terminals and various occasions, meeting diverse user needs.

[0175] This utility model also provides an audio processing device, including the audio processing circuit described above.

[0176] This utility model also provides a karaoke device, including the audio processing circuit described above.

[0177] This utility model also provides a microphone, including:

[0178] Audio acquisition circuit, used to acquire audio;

[0179] The microphone also includes the audio processing circuitry described above.

[0180] Figure 6 The diagram shows a karaoke device and microphone according to the present invention. The audio processing circuit of the present invention can be set on the karaoke device 610 or on the microphone 620.

[0181] This invention can access and process audio data from different types of audio acquisition terminals, making it suitable for various occasions and meeting diverse user needs.

[0182] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0183] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. An audio processing circuit, characterized in that, The audio processing circuit includes: A power supply circuit is used to supply power to the audio processing circuit. An audio interface circuit is provided, which includes multiple types of input interfaces, each type of input interface corresponding to a different type of audio acquisition terminal. The audio interface circuit is also connected to a main control circuit and is used to transmit the audio data acquired by the audio acquisition terminal to the main control circuit. The main control circuit is used to receive the audio data and perform audio processing; A storage circuit for storing the audio data.

2. The audio processing circuit according to claim 1, characterized in that, The power supply circuit includes: The first voltage conversion sub-circuit is used to convert the voltage provided by the external power supply into a first voltage. The second voltage conversion sub-circuit is used to convert the voltage provided by the external power supply into a second voltage.

3. The audio processing circuit according to claim 2, characterized in that, The first voltage conversion sub-circuit includes: The first converter has a first terminal connected to the external power supply, a second terminal grounded, a third terminal connected to the first voltage output interface, and a fourth terminal connected to the external power supply. The first capacitor has its first terminal connected to the first terminal of the first converter, and its second terminal grounded. The first inductor has its first terminal connected to the third terminal of the first converter; The second capacitor has its first terminal connected to the second terminal of the first inductor, and its second terminal connected to the fifth terminal of the first converter. The first resistor has its first terminal connected to the fifth terminal of the first converter, and its second terminal grounded. The second resistor has its first end connected to the second end of the first inductor, and its second end connected to the fifth end of the first converter. The third capacitor has its first terminal connected to the first terminal of the second resistor, and its second terminal grounded.

4. The audio processing circuit according to claim 3, characterized in that, The second voltage conversion sub-circuit includes: The second converter has a first terminal connected to the external power supply, a second terminal grounded, a third terminal connected to the second voltage output interface, and a fourth terminal connected to the external power supply. The fourth capacitor has its first terminal connected to the first terminal of the second converter, and its second terminal grounded. The first terminal of the second inductor is connected to the third terminal of the second converter; The fifth capacitor has its first terminal connected to the second terminal of the second inductor, and its second terminal connected to the fifth terminal of the second converter. The third resistor has its first end connected to the fifth end of the second converter, and its second end grounded. The fourth resistor has its first end connected to the second end of the second inductor, and its second end connected to the fifth end of the second converter. The sixth capacitor has its first terminal connected to the first terminal of the fourth resistor, and its second terminal grounded.

5. The audio processing circuit according to claim 1, characterized in that, The audio interface circuit includes: An audio power interface is connected to an external power source to supply power to the audio interface circuit. The first USB input interface group is connected to the audio acquisition terminal via USB mode; The first I2S input interface group is connected to the audio acquisition terminal via IS2 mode; The first TDM input interface group is connected to the audio acquisition terminal via TDM mode; The first SPDIF input interface group is connected to the audio acquisition terminal via SPDIF mode; Multiple first backup input interface groups are connected to the audio acquisition terminal via a backup mode; The protocol conversion circuit is used to receive the raw data collected by the audio acquisition terminal through multiple interface groups, and convert the raw data into audio data through protocol conversion. The USB output interface group is connected to the USB interface of the main control circuit and is used to transmit the audio data acquired by the audio acquisition terminal in USB mode to the main control circuit. I2S output interface group, used to transmit the audio data acquired by the audio acquisition terminal in I2S mode to the main control circuit; The TDM output interface group is used to transmit the audio data acquired by the audio acquisition terminal in TDM mode to the main control circuit. The SPDIF output interface group is used to transmit the audio data acquired by the audio acquisition terminal in SPDIF mode to the main control circuit. Multiple backup output interface groups are used to transmit the audio data acquired by the audio acquisition terminal in backup mode to the main control circuit.

6. The audio processing circuit according to claim 4, characterized in that, The main control circuit includes: The first main control power interface is connected to an external power supply and is used to supply power to the main control circuit. The second main control power interface is connected to the external power supply and is used to supply power to the main control circuit. The third main control power interface is connected to the first voltage output interface of the power circuit and is used to supply power to the main control circuit. The fourth main control power interface is connected to the second voltage output interface of the power supply circuit and is used to supply power to the main control circuit. The seventh capacitor has its first end connected to the first main control power interface and its second end grounded. The eighth capacitor has its first end connected to the first main control power interface and its second end grounded. The ninth capacitor has its first end connected to the first main control power interface and its second end grounded. The tenth capacitor has its first end connected to the third main control power interface and its second end grounded. The eleventh capacitor has its first end connected to the third main control power interface and its second end grounded. The twelfth capacitor has its first end connected to the fourth main control power interface and its second end grounded. The thirteenth capacitor has its first end connected to the fourth main control power interface and its second end grounded. The fourteenth capacitor has its first end connected to the fourth main control power interface and its second end grounded. The fifteenth capacitor has its first end connected to the fourth main control power interface and its second end grounded. The sixteenth capacitor has its first end connected to the fourth main control power interface and its second end grounded. The seventeenth capacitor has its first end connected to the fourth main control power interface and its second end grounded. The eighteenth capacitor has its first end connected to the fourth main control power interface and its second end grounded. The third inductor has its first end connected to the second voltage output interface of the power supply circuit, and its second end connected to the twenty-second pin of the main control chip. The nineteenth capacitor has its first terminal connected to the second terminal of the third inductor, and its second terminal grounded. The twentieth capacitor has its first end grounded and its second end connected to pin sixteen of the main control chip. The twenty-first capacitor has its first terminal grounded. The fifth resistor has its first end connected to the second end of the twenty-first capacitor, and its second end connected to the fifteenth pin of the main control chip. The sixth resistor has its first end connected to the sixteenth pin of the main control chip, and its second end connected to the fifteenth pin of the main control chip. The first crystal oscillator has its first terminal connected to the second terminal of the 21st capacitor, its second terminal grounded, its third terminal connected to the second terminal of the 20th capacitor, and its fourth terminal grounded. The main control chip has its 30th pin connected to the first main control power interface, its 31st, 17th, and 26th pins connected to the third main control power interface, its 8th, 38th, and 52nd pins connected to the second main control power interface, and its 4th, 14th, 19th, 27th, 34th, 42nd, 49th, 57th, 61st, 62nd, 63rd, and 64th pins connected to the fourth main control power interface. The second USB input interface group is connected to the audio interface circuit and is used to receive audio data collected by the audio acquisition terminal in USB mode. The second I2S input interface group is connected to the audio interface circuit and is used to receive audio data collected by the audio acquisition terminal in I2S mode. The second TDM input interface group is connected to the audio interface circuit and is used to receive audio data acquired by the audio acquisition terminal in TDM mode. The second SPDIF input interface group is connected to the audio interface circuit and is used to receive audio data collected by the audio acquisition terminal in SPDIF mode. Multiple second backup input interface groups are connected to the audio interface circuit and are used to receive audio data collected by the audio acquisition terminal in backup mode; Multiple storage interfaces are connected to the storage circuit; Clock output interface, used to output clock.

7. The audio processing circuit according to claim 4, characterized in that, The storage circuit includes: The seventh resistor has its first end connected to the first voltage output interface of the power supply circuit; The memory chip has its first terminal connected to the second terminal of the seventh resistor, and its first terminal also connected to the corresponding memory interface of the main control circuit. Its second, third, fifth, and seventh terminals are connected to the corresponding memory interfaces of the main control circuit. Its sixth terminal is connected to the clock output interface of the main control circuit. Its fourth terminal is grounded, its ninth terminal is grounded, and its eighth terminal is connected to the first voltage output interface of the power supply circuit. The twenty-second capacitor has its first terminal connected to the eighth terminal of the memory chip, and its second terminal grounded.

8. An audio processing device, characterized in that, Includes the audio processing circuit as described in any one of claims 1 to 7.

9. A karaoke device, characterized in that, Includes the audio processing circuit as described in any one of claims 1 to 7.

10. A microphone, characterized in that, include: Audio acquisition circuit, used to acquire audio; The microphone further includes the audio processing circuitry as described in any one of claims 1 to 7.

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