An audio system

Abstract

The present application discloses an audio system, which includes an audio generating part and an audio playing part, wherein the audio generating part and the audio playing part are communicatively connected; the audio generating part includes an audio generating mainboard, a first area on the surface of the audio generating mainboard is provided with a digital ground, a second area on the surface of the audio generating mainboard is provided with a first analog ground, and the digital ground and the first analog ground are connected at a target position through a first signal line, wherein the target position is the position where the digital-to-analog conversion component on the audio generating mainboard is located; the audio generating mainboard also includes an audio generating circuit for generating an audio signal; the audio playing part includes an amplifier mainboard and a speaker, the amplifier mainboard includes an amplifier chip, and the amplifier chip is used to amplify the power of the audio signal generated by the audio generating circuit; the speaker is used to play the audio signal after power amplification. In this way, the background noise can be reduced and the audio playing quality can be improved.

Description

Technical Field

[0001] The present application relates to the field of audio technology, and in particular to an audio system. Background Art

[0002] As users' living standards improve, they pay more and more attention to spiritual enjoyment. For example, users can choose to play their favorite audio to relax. In the process of playing audio, an audio source and a playback source may be involved. The audio source may be an industrial computer, and the playback source may be an amplifier device with a speaker. In the prior art, the speaker of the amplifier device may generate strong background noise, i.e., background noise, when playing audio. For example, a "hissing" sound may occur when playing audio. The presence of strong background noise will cause the audio playback quality to deteriorate. Summary of the invention

[0003] The present invention provides an audio system to solve the technical problem in the prior art that a speaker of a power amplifier device may generate strong background noise when playing audio, which may cause the audio playing quality to deteriorate.

[0004] In a first aspect, the present invention provides an audio system, the audio system comprising an audio generating part and an audio playing part, the audio generating part and the audio playing part being communicatively connected;

[0005] The audio generating part comprises an audio generating mainboard, a first area on the surface of the audio generating mainboard is provided with a digital ground, a second area on the surface of the audio generating mainboard is provided with a first analog ground, the digital ground and the first analog ground are connected at a target position through a first signal line, wherein the target position is the position where the digital-to-analog conversion component on the audio generating mainboard is located;

[0006] The audio generation mainboard also includes an audio generation circuit for generating audio signals;

[0007] The audio playback part includes a power amplifier mainboard and a speaker, the power amplifier mainboard includes a power amplifier chip, and the power amplifier chip is used to amplify the power of the audio signal generated by the audio generation circuit;

[0008] The loudspeaker is used for playing the audio signal after power amplification.

[0009] Optionally, a second analog ground is provided in a third area on the surface of the power amplifier mainboard, and a power ground is provided in a fourth area on the surface of the power amplifier mainboard. The second analog ground and the power ground are connected via parallel resistors and capacitors, and the parallel resistors and capacitors include resistors and capacitors, and the resistors and capacitors are connected in parallel.

[0010] Optionally, the audio system further includes a power supply part, and the power supply part is used to supply power to the audio generating part and the audio playing part;

[0011] The parallel resistor and capacitor are installed at a position between the second analog ground and the power ground, and at a position where a path passed by the power supply current of the power supply part is the shortest.

[0012] Optionally, the audio generating part, the audio playing part and the power supply part are all arranged in the audio system.

[0013] Optionally, the audio system includes an audio generating device and an audio playing device;

[0014] The audio generating device comprises the audio generating part and a first power supply part, wherein the first power supply part is used to supply power to the audio generating part;

[0015] The audio playing device comprises the audio playing part and a second power supply part, wherein the second power supply part is used to supply power to the audio playing part.

[0016] Optionally, the resistance range of the resistor is 5 ohms to 20 ohms.

[0017] Optionally, the capacitance range of the capacitor is 0.5 microfarad to 2 microfarad.

[0018] Optionally, the resistance of the resistor is 10 ohms.

[0019] Optionally, the capacitance of the capacitor is 1 microfarad.

[0020] It can be seen from the above technical scheme that an audio system provided by an embodiment of the present invention comprises an audio generating part and an audio playing part, wherein the audio generating part and the audio playing part are communicatively connected; the audio generating part comprises an audio generating mainboard, a digital ground is arranged in the first area of ​​the surface of the audio generating mainboard, a first analog ground is arranged in the second area of ​​the surface of the audio generating mainboard, and the digital ground and the first analog ground are connected at a target position through a first signal line, wherein the target position is the position where the digital-to-analog conversion component on the audio generating mainboard is located; the audio generating mainboard also comprises an audio generating circuit for generating an audio signal; the audio playing part comprises an amplifier mainboard and a speaker, wherein the amplifier mainboard comprises an amplifier chip, wherein the amplifier chip is used to amplify the power of the audio signal generated by the audio generating circuit; and the speaker is used to play the audio signal after power amplification. In this way, the digital ground and the first analog ground can be arranged in different areas on the surface of the audio generating mainboard, and the digital ground and the first analog ground can be connected at the target position through a first signal line. wherein the target position is the position where the digital-to-analog conversion component on the audio generating mainboard is located. the background noise can be reduced and the audio playing quality can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of an audio generating mainboard provided in an embodiment of the present application;

[0022] Figure 2 A schematic diagram of a power amplifier mainboard provided in an embodiment of the present application. DETAILED DESCRIPTION

[0023] In order to better understand the technical solutions provided by the embodiments of this specification, the technical solutions of the embodiments of this specification are described in detail below through the accompanying drawings and specific embodiments. It should be understood that the embodiments of this specification and the specific features in the embodiments are detailed descriptions of the technical solutions of the embodiments of this specification, rather than limitations on the technical solutions of this specification. In the absence of conflict, the embodiments of this specification and the technical features in the embodiments can be combined with each other.

[0024] In this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or equipment. In the absence of more restrictions, the elements limited by the statement "comprise one..." do not exclude the existence of other identical elements in the process, method, article or equipment including the elements. The term "more than two" includes two or more than two situations.

[0025] The present invention provides an audio system, the audio system comprising an audio generating part and an audio playing part, the audio generating part and the audio playing part are communicatively connected;

[0026] The audio generating part comprises an audio generating mainboard, a first area on the surface of the audio generating mainboard is provided with a digital ground, a second area on the surface of the audio generating mainboard is provided with a first analog ground, the digital ground and the first analog ground are connected at a target position through a first signal line, wherein the target position is the position where the digital-to-analog conversion component on the audio generating mainboard is located;

[0027] The audio generation mainboard also includes an audio generation circuit for generating audio signals;

[0028] The audio playback part includes a power amplifier mainboard and a speaker, the power amplifier mainboard includes a power amplifier chip, and the power amplifier chip is used to amplify the power of the audio signal generated by the audio generation circuit;

[0029] The loudspeaker is used for playing the audio signal after power amplification.

[0030] In a specific embodiment, the audio system may include an audio generating part and an audio playing part, and the audio generating part and the audio playing part may be communicatively connected. The audio generating part may include an audio generating mainboard, and a first area on the surface of the audio generating mainboard may be provided with a digital ground, and a second area on the surface of the audio generating mainboard may be provided with a first analog ground. The digital ground and the first analog ground may be connected at a target position through a first signal line. The target position may be the position where the digital-to-analog conversion component on the audio generating mainboard is located. The audio generating mainboard may also include an audio generating circuit for generating an audio signal. Furthermore, the audio generating mainboard may also be connected to an audio output component, and the audio output component is used to output the audio signal generated by the audio generating circuit. Figure 1The figure shows a schematic diagram of an audio generating motherboard. Figure 1 In the figure, the area on the left side of the fold line is the digital ground, and the area on the right side of the fold line is the first analog ground. In this way, the digital ground and the first analog ground can be set in different areas on the surface of the audio generation motherboard, and the digital ground and the first analog ground can be connected at the target position through the first signal line. The target position is the position where the digital-to-analog conversion component on the audio generation motherboard is located. This can reduce the background noise and improve the audio playback quality.

[0031] The audio playing part may include a power amplifier mainboard and a speaker. The power amplifier mainboard may include a power amplifier chip, and the power amplifier chip is used to amplify the power of the audio signal generated by the audio generating circuit. The speaker is used to play the audio signal after power amplification.

[0032] Optionally, a second analog ground is provided in a third area on the surface of the power amplifier mainboard, and a power ground is provided in a fourth area on the surface of the power amplifier mainboard. The second analog ground and the power ground are connected via parallel resistors and capacitors, and the parallel resistors and capacitors include resistors and capacitors, and the resistors and capacitors are connected in parallel.

[0033] In a specific embodiment, the third area on the surface of the power amplifier mainboard may be provided with a second analog ground, the fourth area on the surface of the power amplifier mainboard may be provided with a power ground, and the second analog ground and the power ground may be connected via a parallel resistor and capacitor. The parallel resistor and capacitor may include a resistor R and a capacitor C, and the resistor R and the capacitor C are connected in parallel. Figure 2 The figure shows a schematic diagram of a power amplifier motherboard. Figure 2 In the figure, the area on the left side of the fold line is the second analog ground, and the area on the right side of the fold line is the power ground. The power amplifier mainboard can also be connected to an audio input component. The audio input component is used to receive the audio signal output by the audio generation part. In this way, the second analog ground and the power ground can be set in different areas on the surface of the power amplifier mainboard, and the second analog ground and the power ground can be connected through a parallel resistor and capacitor. The capacitor C included in the parallel resistor and capacitor can filter high-frequency noise. It can reduce the background noise and improve the audio playback quality.

[0034] Optionally, the audio system further includes a power supply part, and the power supply part is used to supply power to the audio generating part and the audio playing part;

[0035] The parallel resistor and capacitor are installed at a position between the second analog ground and the power ground, and at a position where a path passed by the power supply current of the power supply part is the shortest.

[0036] In a specific embodiment, the audio system may further include a power supply part, which is used to power the audio generation part and the audio playback part. The parallel resistor and capacitor are installed between the second analog ground and the power ground, and the path passed by the power supply current of the power supply part is the shortest. In this way, the parallel resistor and capacitor are installed between the second analog ground and the power ground, and the path passed by the power supply current of the power supply part is the shortest. Since the path passed by the power supply current is the shortest, less noise can be introduced, which can further reduce the background noise and improve the audio playback quality.

[0037] Optionally, the audio generating part, the audio playing part and the power supply part are all arranged in the audio system.

[0038] In a specific embodiment, the audio generation part, the audio playback part and the power supply part can all be arranged in the audio system. In this case, the audio generation part and the audio playback part can be connected via an audio signal line. In this way, the audio generation part, the audio playback part and the power supply part can be arranged in the same audio system, that is, arranged in the same device, which can save equipment costs.

[0039] Optionally, the audio system includes an audio generating device and an audio playing device;

[0040] The audio generating device comprises the audio generating part and a first power supply part, wherein the first power supply part is used to supply power to the audio generating part;

[0041] The audio playing device comprises the audio playing part and a second power supply part, wherein the second power supply part is used to supply power to the audio playing part.

[0042] In a specific embodiment, the audio system may include an audio generating device and an audio playing device. The audio generating device may include an audio generating part and a first power supply part, and the first power supply part is used to supply power to the audio generating part; the audio playing device may include an audio playing part and a second power supply part, and the second power supply part is used to supply power to the audio playing part. At this time, the audio generating device and the audio playing device may communicate via wired or wireless means. In this way, the audio system may include an audio generating device for generating an audio signal and an audio playing device for power amplifying the audio signal. The audio generating device and the audio playing device are two independent devices, which may be used separately or in combination, and the devices have better flexibility in use.

[0043] Optionally, the resistance range of the resistor is 5 ohms to 20 ohms.

[0044] In a specific embodiment, the resistance value of the resistor may range from 5 ohms to 20 ohms.

[0045] Optionally, the capacitance range of the capacitor is 0.5 microfarad to 2 microfarad.

[0046] In a specific embodiment, the capacitance value of the capacitor may range from 0.5 microfarad to 2 microfarad.

[0047] Optionally, the resistance of the resistor is 10 ohms.

[0048] In a specific embodiment, the resistance value of the resistor may be 10 ohms, at which point the background noise reduction effect is better, and the audio playback quality may be in a better state.

[0049] Optionally, the capacitance of the capacitor is 1 microfarad.

[0050] In a specific embodiment, the capacitance of the capacitor is 1 microfarad, at which point the background noise reduction effect is better, and the audio playback quality can be in a better state.

[0051] It should be noted that in the prior art, the speaker of the power amplifier device may generate strong background noise, i.e., background noise, when playing audio. For example, a "hissing" sound may occur when playing audio. The presence of strong background noise may cause the audio playback quality to deteriorate.

[0052] In the present application, the digital ground and the first analog ground can be arranged in different areas on the surface of the audio generating mainboard, and the digital ground and the first analog ground can be connected at the target position through the first signal line. The target position is the position where the digital-to-analog conversion component on the audio generating mainboard is located. This can reduce the background noise and improve the audio playback quality.

[0053] Although the preferred embodiments of this specification have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of this specification.

[0054] Obviously, those skilled in the art can make various changes and modifications to this specification without departing from the spirit and scope of this specification. Thus, if these modifications and variations of this specification fall within the scope of the claims of this specification and their equivalents, this specification is also intended to include these modifications and variations.

Claims

1. An audio system, characterized in that: The audio system comprises an audio generating part and an audio playing part, wherein the audio generating part and the audio playing part are in communication connection; The audio generating part comprises an audio generating mainboard, a first area on the surface of the audio generating mainboard is provided with a digital ground, a second area on the surface of the audio generating mainboard is provided with a first analog ground, the digital ground and the first analog ground are connected at a target position through a first signal line, wherein the target position is the position where the digital-to-analog conversion component on the audio generating mainboard is located; The audio generation mainboard also includes an audio generation circuit for generating audio signals; The audio generation mainboard is connected to an audio output component, and the audio output component is used to output the audio signal generated by the audio generation circuit; The audio playback part includes a power amplifier mainboard and a speaker, the power amplifier mainboard includes a power amplifier chip, and the power amplifier chip is used to amplify the power of the audio signal generated by the audio generation circuit; The loudspeaker is used to play the power-amplified audio signal; A second analog ground is arranged in the third area on the surface of the power amplifier mainboard, and a power ground is arranged in the fourth area on the surface of the power amplifier mainboard. The second analog ground and the power ground are connected via parallel resistors and capacitors, and the parallel resistors and capacitors include resistors and capacitors, and the resistors and capacitors are connected in parallel.

2. The audio system according to claim 1, wherein: The audio system further comprises a power supply part, which is used to supply power to the audio generating part and the audio playing part; The parallel resistor and capacitor are installed at a position between the second analog ground and the power ground, and at a position where a path passed by the power supply current of the power supply part is the shortest.

3. The audio system according to claim 2, characterized in that The audio generating part, the audio playing part and the power supply part are all arranged in the audio system.

4. The audio system according to claim 2, wherein: The audio system includes an audio generating device and an audio playing device; The audio generating device comprises the audio generating part and a first power supply part, wherein the first power supply part is used to supply power to the audio generating part; The audio playing device comprises the audio playing part and a second power supply part, wherein the second power supply part is used to supply power to the audio playing part.

5. The audio system according to any one of claims 1 to 4, characterized in that The resistance value of the resistor ranges from 5 ohms to 20 ohms.

6. The audio system according to any one of claims 1 to 4, characterized in that: The capacitance value of the capacitor ranges from 0.5 microfarad to 2 microfarad.

7. The audio system according to claim 5, characterized in that The resistance of the resistor is 10 ohms.

8. The audio system according to claim 6, characterized in that The capacitance of the capacitor is 1 microfarad.

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