Startup and shutdown explosion-proof sound processing circuit of active sound box

Abstract

The utility model relates to the technical field of active sound boxes. The explosion-proof sound processing circuit comprises a signal processing port, a microphone input port, a line input port, a Bluetooth input port, an explosion-proof sound processing unit electrically connected with the microphone input port, and a power management module used for providing stable voltage transition when the sound box is turned on and turned off. According to the active loudspeaker box, various input modes (microphone, Bluetooth and line input) are integrated, the power management module is arranged to ensure stable voltage transition during startup and shutdown, the sonic boom phenomenon is effectively reduced, audio signals are digitally optimized through signal processing technologies such as a DSP, the tone quality is remarkably improved, a user can flexibly switch an input signal source, and the user experience is improved. The sound box can enjoy graceful and pleasant sound which is further processed by the explosion-proof sound processing unit and is output by the loudspeaker, and the use experience and the sound quality effect of the sound box are integrally improved.

Description

Technical Field

[0001] The utility model relates to the technical field of active speakers, in particular to a circuit for processing explosion-proof sound when turning on and off an active speaker. Background Art

[0002] With the advancement of science, electronic products are gradually updated and replaced with various types. Most electronic products have voice functions. Among them, active speakers, also known as "active speakers", refer to speakers with power amplifiers.

[0003] When using active speakers, the instantaneous current surge generated when turning them on and off often causes the speakers to emit a harsh popping sound. This popping sound phenomenon not only seriously affects the user's auditory experience and makes them feel uncomfortable, but may also cause potential damage to the speaker's circuit system and speakers, thereby affecting the speaker's service life and performance. Utility Model Content

[0004] The present invention addresses the deficiencies of the prior art and provides the following technical solutions: a pop-proof sound processing circuit for powering on and off an active speaker, comprising a signal processing port, a microphone input port, a line input port, a Bluetooth input port, an pop-proof sound processing unit electrically connected to the microphone input port, and a power management module for providing a smooth voltage transition when the speaker is powered on and off;

[0005] The line input port and the Bluetooth input port are electrically connected, and the microphone input port is used for connecting an external microphone;

[0006] The Bluetooth input port is a wireless input, and the line input port is wirelessly connected to the microphone input port via the wireless Bluetooth input port;

[0007] The signal processing port is linearly connected to the line input port;

[0008] The pop-proof sound processing unit is connected between the power management module and the audio output, and the pop-proof sound processing unit is electrically connected to the power management module. By integrating the signal processing port, microphone input port, line input port, Bluetooth input port, pop-proof sound processing unit and power management module, this circuit not only provides a variety of input methods to meet the needs of different users, but also has excellent pop-proof sound processing functions, thereby significantly enhancing the flexibility and sound quality performance of the speaker.

[0009] As an improvement to the above technical solution, the signal processing port is a DSP MUTE audio signal output. By using the advanced DSP MUTE audio signal output as the signal processing port, we can achieve accurate and detailed control of the audio signal.

[0010] This processing method can significantly improve the accuracy and efficiency of sound quality processing, ensuring that the audio signal maintains a high degree of clarity and accuracy during transmission and processing, bringing users a more excellent listening experience.

[0011] As an improvement to the above technical solution, the DSP processor part performs digital processing on various audio signals. The DSP processor can perform efficient and precise digital processing on various audio signals, effectively remove noise and interference through complex algorithms and technical means, and significantly improve sound quality performance.

[0012] This processing method makes the output sound clearer, purer and richer in details, bringing users a more realistic and moving listening experience.

[0013] As an improvement to the above technical solution, the signal processing port can be switched to a line input port through a selection switch, and outputs beautiful and pleasant sound through pre-stage gain and DSP processing. Through the carefully designed selection switch, users can easily switch between different input signal sources, such as microphone, line input or Bluetooth connection.

[0014] These input signals are then processed through precise pre-stage gain adjustment and advanced DSP. Through this process, users can choose the best input method according to their actual needs and enjoy the optimized sound effects that are more beautiful, pleasant and rich in details.

[0015] As an improvement of the above technical solution, the Bluetooth input port completes the connection between the mobile phone and the speaker and the connection between the speakers. The ingenious setting of the Bluetooth input port greatly facilitates the connection between the speaker and Bluetooth devices such as smart phones and tablets, and realizes seamless wireless transmission of audio signals.

[0016] This feature not only frees users from the constraints of cables and allows them to enjoy a more free and flexible audio experience, but also supports connections between speakers, allowing multiple speakers to work together, thereby expanding the usage scenarios and functions of the speakers and meeting users' diverse needs for sound coverage and sound effects in different environments.

[0017] The beneficial effects of the present invention are as follows: the active speaker design integrates multiple input methods (microphone, Bluetooth, line input), and is equipped with a power management module to ensure a smooth voltage transition when turning the machine on and off, effectively reducing the phenomenon of popping sounds. Through signal processing technologies such as DSP, the audio signal is digitally optimized and the sound quality is significantly improved. Users can flexibly switch the input signal source and enjoy the beautiful and pleasant sound further processed by the anti-pop sound processing unit and output by the speaker, which improves the overall user experience and sound quality of the speaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This utility model audio processing circuit Figure 1 ;

[0019] Figure 2 This utility model audio processing circuit Figure 2 . DETAILED DESCRIPTION

[0020] The terms "first," "second," "third," and "fourth," etc., in the specification, claims, and accompanying drawings of the present invention are used to distinguish between different items, not to describe a specific order. Furthermore, the terms "including," "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or elements is not limited to the listed steps or elements, but may optionally include steps or elements not listed, or may optionally include other steps or elements inherent to the process, method, product, or apparatus.

[0021] References to "embodiments" herein mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present invention. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0022] "Multiple" refers to two or more. "And / or" describes the relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can mean: A exists alone, A and B exist simultaneously, or B exists alone. The character " / " generally indicates that the associated objects are in an "or" relationship.

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below. It should be understood that the specific embodiments described herein are only used to explain the present invention. In the absence of any conflict, the embodiments and technical features in the embodiments of the present application can be combined with each other. The detailed description in the specific implementation methods should be understood as an explanation of the purpose of the present application and should not be regarded as an undue limitation on the present application.

[0024] It should be understood that the orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings. These orientation terms are only used to facilitate the description of this application and simplify the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, they should not be understood as limiting this application.

[0025] See also Figure 1-2, the utility model provides a technical solution:

[0026] Specifically, the pop-proof sound processing circuit for powering on and off the active speaker includes a signal processing port, a microphone input port, a line input port, a Bluetooth input port, an pop-proof sound processing unit electrically connected to the microphone input port, and a power management module for providing a smooth voltage transition when the speaker is turned on and off;

[0027] The line input port and the Bluetooth input port are electrically connected, and the microphone input port is used to connect an external microphone;

[0028] The Bluetooth input port is a wireless input, and the line input port is wirelessly connected to the microphone input port through the wireless Bluetooth input port;

[0029] There is a linear connection between the signal processing port and the line input port;

[0030] The anti-pop sound processing unit is connected between the power management module and the audio output, and the anti-pop sound processing unit is electrically connected to the power management module.

[0031] In this embodiment, by integrating a signal processing port, a microphone input port, a line input port, a Bluetooth input port, an anti-pop sound processing unit, and a power management module, the circuit not only provides a variety of input methods to meet the needs of different users, but also has an excellent anti-pop sound processing function, thereby significantly enhancing the flexibility and sound quality performance of the speaker.

[0032] Specifically, the signal processing port is a DSP MUTE audio signal output.

[0033] In this embodiment, by using the advanced DSP MUTE audio signal output as the signal processing port, we can achieve precise and detailed control of the audio signal. This processing method can significantly improve the accuracy and efficiency of sound quality processing, ensuring that the audio signal maintains a high degree of clarity and accuracy during transmission and processing, providing users with a more excellent listening experience.

[0034] Specifically, the DSP processor part digitally processes various audio signals.

[0035] In this embodiment, the DSP processor can perform efficient and precise digital processing on various audio signals. Through complex algorithms and technical means, it effectively removes noise and interference, significantly improving sound quality. This processing method makes the output sound clearer, purer, and richer in detail, providing users with a more realistic and moving listening experience.

[0036] Specifically, the signal processing port can be switched to a line input port through a selection switch, and outputs beautiful and pleasant sound through pre-stage gain and DSP processing.

[0037] In this embodiment, a carefully designed selector switch allows users to easily switch between different input signal sources, such as microphone, line-in, or Bluetooth connection. These input signals then undergo precise pre-amplifier gain adjustment and advanced DSP processing. Through this process, users can select the optimal input method based on their actual needs and enjoy a more beautiful, detailed and optimized sound effect.

[0038] Specifically, the Bluetooth input port completes the connection between the mobile phone and the speaker and the connection between the speakers.

[0039] In this embodiment, the clever placement of the Bluetooth input port greatly facilitates the connection of the speaker to Bluetooth devices such as smartphones and tablets, enabling seamless wireless transmission of audio signals. This feature not only frees users from the constraints of cables and allows for a more flexible and free audio experience, but also supports inter-speaker connectivity, allowing multiple speakers to work together, thus expanding the speaker's usage scenarios and functionality, and meeting users' diverse needs for sound coverage and sound effects in different environments.

[0040] During use, the user connects an external microphone to the microphone input port of the active speaker. Through the Bluetooth input port, the user can connect a mobile phone or other Bluetooth device to the speaker to achieve wireless audio transmission. If necessary, the user can also input the audio signal through the line input port using a wired connection. When the speaker is turned on and off, the power management module provides a smooth voltage transition to ensure the stable power supply of the speaker and reduce the popping sound caused by voltage mutation. The audio signal enters the speaker through the line input port or the Bluetooth input port. The signal processing port (such as DSP MUTE audio signal output) digitizes the received audio signal to optimize the sound quality. The user can switch the input signal source by selecting the switch, such as switching from Bluetooth input to line input. The anti-pop sound processing unit is connected between the power management module and the audio output to further process the audio signal to reduce the popping sound when the speaker is turned on and off. The processed audio signal is output through the speaker of the speaker to provide beautiful and pleasant sound.

[0041] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the above embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the above embodiments, or to replace some of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions claimed to be protected by the present application.

Claims

1. The active speaker's power on / off anti-explosion sound processing circuit is characterized by: It includes a signal processing port, a microphone input port, a line input port, a Bluetooth input port, an anti-pop sound processing unit electrically connected to the microphone input port, and a power management module for providing a smooth voltage transition when the speaker is turned on and off; The line input port and the Bluetooth input port are electrically connected, and the microphone input port is used for connecting an external microphone; The Bluetooth input port is a wireless input, and the line input port is wirelessly connected to the microphone input port via the wireless Bluetooth input port; The signal processing port is linearly connected to the line input port; The anti-pop sound processing unit is connected between the power management module and the audio output, and the anti-pop sound processing unit is electrically connected to the power management module.

2. The anti-pop sound processing circuit for powering on and off an active speaker according to claim 1, characterized in that: The signal processing port is the DSP MUTE audio signal output.

3. The anti-explosive sound processing circuit for powering on and off an active speaker according to claim 2, characterized in that: The DSP processor part in the DSPMUTE performs digital processing on various audio signals.

4. The anti-pop sound processing circuit for powering on and off an active speaker according to claim 1, characterized in that: The signal processing port can be switched to a line input port by a selection switch, and outputs beautiful and pleasant sound through pre-stage gain and DSP processing.

5. The anti-pop sound processing circuit for powering on and off an active speaker according to claim 1, characterized in that: The Bluetooth input port completes the connection between the mobile phone and the speaker and the connection between the speakers.

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