Detachable vehicle-mounted audio playing system

Abstract

The invention discloses a detachable vehicle-mounted audio playing system which comprises a vehicle-mounted signal access module, a processor, a sound effect processing module and a playing module. The vehicle-mounted signal access module is used for sending a first signal to the processor when an in-vehicle signal source is accessed; the processor is used for sending a vehicle-mounted mode signal to the sound effect processing module when receiving the first signal; the sound effect processing module is used for accessing an audio signal, processing the audio signal by adopting a preset vehicle-mounted sound effect algorithm when the vehicle-mounted mode signal is received, processing the audio signal by adopting a preset outdoor sound effect algorithm when the vehicle-mounted mode signal is not received, and sending the processed audio signal to the playing module; and the playing module is used for playing the received audio signal. The vehicle-mounted audio playing system provided by the invention has higher flexibility.

Description

Technical Field

[0001] This application relates to the field of vehicle audio technology, specifically to a detachable vehicle audio playback system. Background Technology

[0002] Currently, car audio systems have fixed installation locations in vehicles. The audio system is assembled as a whole during vehicle production, which limits car audio systems to fixed use in the vehicle. Even if users install additional audio systems later, they have to work with the original car audio system in the car, making it difficult to adapt to different interactive scenarios with high quality.

[0003] Further research by the inventors revealed that traditional car audio systems are often fixedly installed inside the vehicle, integrated with the vehicle body, and cannot be moved or used independently, indicating that the application of traditional car audio systems has limitations. Summary of the Invention

[0004] In view of this, this application provides a detachable in-vehicle audio playback system to solve the problem of limitations in traditional in-vehicle audio applications.

[0005] This application provides a detachable vehicle audio playback system, which includes a vehicle signal access module, a processor, a sound effect processing module, and a playback module. The vehicle signal access module is used to send a first signal to the processor when accessing an in-vehicle signal source; The processor is used to send a vehicle mode signal to the audio processing module when it receives the first signal; The audio processing module is used to receive audio signals. When receiving the vehicle mode signal, it processes the audio signal using a preset vehicle audio effect algorithm. When not receiving the vehicle mode signal, it processes the audio signal using a preset outdoor audio effect algorithm and sends the processed audio signal to the playback module. The playback module is used to play the received audio signal.

[0006] Optionally, the vehicle signal access module includes a connection contact point; the connection contact point is used to connect to the in-vehicle signal source when placed in the in-vehicle connection seat to generate the first signal.

[0007] Optionally, the audio processing module includes at least one of a Bluetooth communication module, a CD reading module, a storage device access module, and an AUX audio input interface; the Bluetooth communication module is used to communicate with an external device via Bluetooth to receive audio signals and / or control signals from the external device; the CD reading module is used to load a CD and read the audio signals from the loaded CD; the storage device access module is used to connect to a storage device and read the pre-stored audio signals in the storage device; the AUX audio input interface is used to connect at least one musical instrument or at least one player.

[0008] Optionally, the sound effect processing module is also used to identify ambient noise when running the outdoor sound effect algorithm and adjust the sound effect parameters according to the intensity of the ambient noise.

[0009] Optionally, the detachable in-vehicle audio playback system further includes a control device; the control device is communicatively connected to the sound processing module and is used to display the control interface of the sound processing module to receive adjustment commands input by the user through the control interface.

[0010] Optionally, the sound effects processing module is further configured to output a control entry on the interface of the external device when communicating with the external device; the external device is configured to respond to the entry operation corresponding to the control entry, load the control interface of the sound effects processing module, and become the control device corresponding to the sound effects processing module.

[0011] Optionally, the control device is used to receive sound effect adjustment parameters through the control interface and send the sound effect adjustment parameters to the sound effect processing module; the sound effect processing module is used to respond to the sound effect adjustment parameters and adjust the outdoor sound effect algorithm.

[0012] Optionally, the control device is used to obtain update information corresponding to the outdoor sound effect algorithm and send the update information to the sound effect processing module; the sound effect processing module is used to respond to the update information and update the outdoor sound effect algorithm.

[0013] Optionally, the in-vehicle audio effect algorithm is used to enhance at least one parameter of the audio signal so that the in-vehicle audio playback system and the in-vehicle audio system can play the audio signal in coordination.

[0014] Optionally, the playback module includes a power amplifier and a speaker; the first end of the power amplifier is connected to the output end of the sound processing module, and the second end is connected to the input end of the speaker.

[0015] In the aforementioned detachable in-vehicle audio playback system, the in-vehicle signal access module can send a first signal to the processor when it connects to an in-vehicle signal source, so that the processor receives the first signal and sends an in-vehicle mode signal to the audio effect processing module. When receiving the in-vehicle mode signal, the audio effect processing module can process the audio signal using a preset in-vehicle audio effect algorithm to match the signal processing process with the in-vehicle scenario. When receiving an outdoor mode signal or not receiving an in-vehicle mode signal, the module can process the audio signal using a preset outdoor audio effect algorithm to match the signal processing process with the outdoor scenario and send the processed audio signal to the playback module. This allows the playback module to respond to the audio playback requirements of various playback scenarios (such as in-vehicle scenarios and / or outdoor scenarios) and play the corresponding audio signal in various playback scenarios, making the application process of the detachable in-vehicle audio playback system more flexible. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a detachable in-vehicle audio playback system according to an embodiment of this application; Figure 2 This is a schematic diagram of a detachable in-vehicle audio playback system according to another embodiment of this application; Figure 3 This is a schematic diagram of a detachable in-vehicle audio playback system according to another embodiment of this application. Detailed Implementation

[0018] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. In the absence of conflict, the following embodiments and their technical features can be combined with each other.

[0019] The first aspect of this application provides a detachable in-vehicle audio playback system. This system can be installed inside a vehicle to play audio signals within the vehicle. Alternatively, it can be detached from the vehicle and placed in outdoor environments, serving as an outdoor audio playback system.

[0020] Specifically, refer to Figure 1 and Figure 2 As shown, the detachable in-vehicle audio playback system includes an in-vehicle signal access module 110, a processor 120, an audio processing module 130, and a playback module 140. The in-vehicle signal access module 110 allows the corresponding in-vehicle audio playback system to be installed inside the vehicle to access in-vehicle signal sources, enabling the system to provide in-vehicle audio functionality. The in-vehicle signal access module 110 is also connected to the first end of the audio processing module 130 via the processor 120; the second end of the audio processing module 130 is used to receive audio signals, and the third end of the audio processing module 130 is connected to the input end of the playback module 140.

[0021] The vehicle signal access module 110 is used to send a first signal to the processor 120 when an in-vehicle signal source is connected, so that the processor 120 knows that the current in-vehicle audio playback system needs to play audio signals as a car audio system inside the car. The first signal may include signals connected to or generated by the vehicle signal access module 110 after connecting to the in-vehicle signal source, such as a vehicle power supply signal. Optionally, the vehicle signal access module 110 may also send a second signal to the processor 120 when no in-vehicle signal source is connected, so that the processor 120 knows that the current in-vehicle audio playback system is operating in outdoor mode.

[0022] The processor 120 is used to send a vehicle mode signal to the audio processing module 130 when receiving the first signal, so as to inform the audio processing module 130 that it is currently in vehicle mode.

[0023] Optionally, the processor 120 may also send an outdoor mode signal to the audio processing module 130 when it does not receive the first signal, to inform the audio processing module 130 that it is currently in outdoor mode. Optionally, the processor 120 may also send an outdoor mode signal to the audio processing module 130 when it receives the second signal. The processor 120 may be implemented using a device with control functions, such as an MCU (microprocessor unit).

[0024] The audio processing module 130 is used to receive audio signals. When receiving the vehicle mode signal, it uses a preset vehicle audio effect algorithm to process the audio signal so that the signal processing process of the audio processing module 130 matches the vehicle scene. The audio processing module 130 can also use a preset outdoor audio effect algorithm to process the audio signal when receiving the outdoor mode signal or not receiving the vehicle mode signal so that the signal processing process of the audio processing module 130 matches the outdoor scene. The audio processing module 130 also sends the processed audio signal to the playback module.

[0025] Optionally, such as Figure 2As shown, the audio processing module 130 may include a channel switch and two algorithm processing channels. When receiving a vehicle mode signal, the audio processing module 130 can connect the channel switch to the algorithm channel corresponding to the vehicle audio effect algorithm to process the audio signal using the vehicle audio effect algorithm. When not receiving a vehicle mode signal or receiving an outdoor mode signal, the channel switch can connect the algorithm channel corresponding to the outdoor audio effect algorithm to process the audio signal using the outdoor audio effect algorithm. Optionally, the audio processing module 130 may be implemented using a DSP (Digital Signal Processing) chip, and each algorithm processing channel may be loaded with its corresponding DSP audio effect algorithm.

[0026] The playback module 140 is used to play the received audio signal in response to the audio playback needs of various playback scenarios (such as in-vehicle scenarios and / or outdoor scenarios).

[0027] Optionally, the playback module 140 includes a power amplifier 141 and a speaker 142. A first terminal of the power amplifier 141 is connected to the output terminal of the audio processing module 130 to receive the processed audio signal; a second terminal of the power amplifier 141 is connected to the input terminal of the speaker 142 to send an audio signal to the speaker 142. The power amplifier 141 can perform lossless power amplification on the received audio signal. The speaker 142 can play the audio signal output by the power amplifier 141, achieving high-fidelity music playback.

[0028] In the above-mentioned detachable in-vehicle audio playback system, the in-vehicle signal access module 110 can send a first signal to the processor 120 when it connects to an in-vehicle signal source, so that the processor 120 receives the first signal and sends an in-vehicle mode signal to the audio effect processing module 130. When receiving the in-vehicle mode signal, the audio effect processing module 130 can process the audio signal using a preset in-vehicle audio effect algorithm to match the signal processing process with the in-vehicle scene. When receiving an outdoor mode signal or not receiving an in-vehicle mode signal, it can process the audio signal using a preset outdoor audio effect algorithm to match the signal processing process with the outdoor scene, and send the processed audio signal to the playback module. This allows the playback module 140 to respond to the audio playback requirements of various playback scenarios (such as in-vehicle scenarios and / or outdoor scenarios) and play the corresponding audio signal in various playback scenarios, making the application process of the corresponding detachable in-vehicle audio playback system more flexible.

[0029] In some embodiments, the vehicle signal access module 110 can detect whether the vehicle audio playback system is installed inside the vehicle. When the vehicle audio playback system is installed inside the vehicle, the vehicle signal access module 110 can output a first signal and send it to the processor 120, indicating that the vehicle audio playback system has been installed and is working in vehicle mode. When the vehicle audio playback system is removed from the vehicle, the vehicle signal access module 110 can output another second signal and send it to the processor 120, indicating that the vehicle audio playback system has been removed from the vehicle and will work in outdoor mode.

[0030] In some examples, the vehicle signal access module 110 includes a connection contact point; the connection contact point is used to connect to the in-vehicle signal source and generate a first signal when it is placed in the in-vehicle connector. Optionally, the vehicle signal access module 110 can generate a second signal when the connection contact point is not connected to the in-vehicle connector.

[0031] In this example, a connector for installing the aforementioned detachable in-vehicle audio playback system can be provided inside the vehicle. The contact structure provided by the connector matches the connection contacts included in the in-vehicle signal access module 110. By placing the connection contacts on the connector, the in-vehicle signal access module 110 can establish a stable connection with the connector, thereby enabling the in-vehicle signal access module 110 to access the in-vehicle signal source and generate a first signal.

[0032] In some examples, the vehicle signal access module 110 includes a relay; the relay can close when the vehicle signal access module 110 is placed in the vehicle's mounting bracket for the aforementioned vehicle audio playback system, to access the in-vehicle signal source and generate a first signal. Optionally, the relay can open when the signal access module 110 is not connected to the in-vehicle mounting bracket, in which case the signal access module 110 either does not generate a related signal or generates a second signal.

[0033] In some examples, the vehicle signal access module 110 may also include components such as optocouplers or magnetic Hall switches. When the vehicle signal access module 110 includes an optocoupler, the optocoupler can connect to an in-vehicle signal source and generate a first signal when the vehicle signal access module 110 is placed in the vehicle's mounting bracket for the aforementioned in-vehicle audio playback system. When the vehicle signal access module 110 includes a magnetic Hall switch, the magnetic Hall switch can close when the vehicle signal access module 110 is placed in the vehicle's mounting bracket for the aforementioned in-vehicle audio playback system to connect to an in-vehicle signal source and generate a first signal. It can also open when the signal access module 110 is not connected to the in-vehicle mounting bracket, in which case the signal access module 110 either does not generate a related signal or generates a second signal.

[0034] In some embodiments, when the audio processing module 130 receives a vehicle mode signal, it can activate a dedicated vehicle audio effect algorithm. Based on the functional positioning and configuration of the vehicle audio playback system within the vehicle, it dynamically adjusts acoustic parameters, or selectively shuts down some sound units or enhances specific frequency bands, achieving deep integration with the overall vehicle audio system. When receiving an outdoor mode signal or not receiving a vehicle mode signal, the audio processing module 130 switches to an outdoor audio effect algorithm, stops receiving audio signals from the vehicle, and drives the detachable vehicle audio playback system to emit sound in its full form across the entire frequency range. In this case, the vehicle audio playback system can be combined with external devices such as mobile phones to create an external car audio system, adapting to the wide sound field requirements of outdoor scenarios.

[0035] In some examples, the audio processing module 130 includes a Bluetooth communication module (such as...). Figure 3 The components shown include a BT (BitTorrent File System), a CD reading module, a storage device access module, and an AUX audio input interface (such as...). Figure 3 At least one of the AUX shown.

[0036] The Bluetooth communication module is used to communicate with external devices via Bluetooth to receive audio signals and / or control signals from the external devices. These external devices may include mobile phones, tablets, and / or in-vehicle control devices, etc.

[0037] Optionally, in vehicle mode, if no other audio equipment is installed in the vehicle, the sound processing module 130 can obtain the audio signal from the vehicle control device via the Bluetooth communication module, and the aforementioned vehicle audio playback system can play the audio signal as a vehicle audio system; if no other audio equipment is installed in the vehicle, the sound processing module 130 can obtain the audio signal from the vehicle control device via the Bluetooth communication module, and the aforementioned vehicle audio playback system can play the audio signal as a vehicle audio system; if audio equipment is installed in the vehicle, the sound processing module 130 can obtain the audio signal from the vehicle control device via the Bluetooth communication module, enabling the aforementioned vehicle audio playback system to cooperate with the existing vehicle audio system in the vehicle, selectively shutting down some sound units and / or enhancing the performance of specific frequency bands, thereby achieving deep integration with the existing vehicle audio system in the vehicle.

[0038] Optionally, in outdoor mode, the Bluetooth communication module can communicate with portable external devices such as mobile phones and / or tablets via Bluetooth to receive audio signals from these external devices; in some examples, the sound effect processing module 130 can also obtain control signals received by the aforementioned external devices through the Bluetooth communication module and adjust the sound effect processing process in real time according to the control signals.

[0039] The CD (laser disc) reading module is used to load CDs and read high-quality audio signals from the loaded CDs, responding to the outdoor audio acquisition needs of CD enthusiasts.

[0040] The storage device access module is used to access the storage device and read the pre-stored audio signals in the storage device, so that the audio processing module 130 can acquire audio signals more flexibly and conveniently in outdoor scenarios. Optionally, the storage device may include portable storage devices such as USB flash drives.

[0041] The AUX audio input interface is used to connect at least one musical instrument (such as a guitar and / or an electronic keyboard) or at least one player to adapt to outdoor scenarios such as small performances, street singing and / or team event amplification.

[0042] In some examples, the audio processing module 130 is also used to identify ambient noise when running the outdoor audio algorithm, and adjust audio parameters according to the intensity of the ambient noise to ensure that clear and full audio effects can be output in different outdoor scenarios. Optionally, adjusting audio parameters according to the intensity of ambient noise includes: when the ambient noise is relatively high (e.g., greater than the noise threshold), the audio processing module 130 can increase the output sound pressure in the mid-frequency and high-frequency bands to utilize the masking effect of sound and improve the clarity of music signals and the intelligibility of speech signals. Specifically, in outdoor mode, the audio processing module 130 can be tuned for the acoustic characteristics of open spaces, enhance the penetration of mid-high frequencies and the atmosphere of low frequencies, and automatically adjust audio parameters according to the intensity of ambient noise, thereby improving the outdoor playback effect.

[0043] In some examples, the detachable in-vehicle audio playback system also includes a control device (not shown in the figure). The control device may include a remote control corresponding to the audio processing module 130, or a portable terminal carried by the user such as a mobile phone and / or tablet computer that can establish a communication connection with the audio processing module 130; it may also include a control panel located on the in-vehicle audio playback system.

[0044] The control device communicates with the sound processing module 130 (e.g., via Bluetooth) to display the control interface of the sound processing module 130, and receives adjustment commands input by the user through the control interface, enabling the user to conveniently adjust the sound processing process of the sound processing module 130.

[0045] Optionally, the control interface may include audio playback controls such as play, pause, track switching, and / or volume adjustment, so that users can operate the audio playback process of the aforementioned in-vehicle audio playback system.

[0046] Optionally, the control interface may further include sound effect adjustment controls, which are used to receive sound effect adjustment parameters to adjust the corresponding sound effect algorithm. The control device is used to receive the sound effect adjustment parameters through the control interface and send the sound effect adjustment parameters to the sound effect processing module 130. The sound effect processing module 130 is used to respond to the sound effect adjustment parameters and adjust the outdoor sound effect algorithm to achieve real-time adjustment of the outdoor sound effect algorithm and improve the controllability of the sound effect algorithm processing process.

[0047] In some examples, the detachable in-vehicle audio playback system may further include a housing, with the processor 120 and audio processing module 130 housed inside the housing, the playback module 140 located on the user-facing side of the housing, and the in-vehicle signal access module 110 located on the side of the housing that contacts the connector for mounting the in-vehicle audio playback system. The control device or control panel may be located on the side or top of the housing, allowing the user to directly input corresponding adjustment commands on the in-vehicle audio playback system.

[0048] In some examples, if a user needs to update the outdoor sound effect algorithm, such as adjusting at least some of the sound effect parameters in the algorithm, update information corresponding to the algorithm can be created and / or generated. This allows the control device to obtain the update information and send it to the sound effect processing module 130. The sound effect processing module 130 responds to the update information and updates the outdoor sound effect algorithm to achieve real-time updates and ensure the sound effect processing performance of the algorithm.

[0049] In some examples, the sound effects processing module 130 is also used to output a control entry point on the interface of an external device when communicating with it. This control entry point provides access to the control interface of the sound effects processing module 130. If a user needs to access the control interface of the sound effects processing module 130, they can click on the control entry point to input the corresponding entry operation.

[0050] An external device is used to respond to the entry operation corresponding to the control entry, load and display the control interface of the sound effect processing module 130, so that the external device becomes the control device corresponding to the sound effect processing module 130, and the control device displays the control interface of the sound effect processing module 130 and receives control commands such as sound effect adjustment parameters input by the user.

[0051] In some embodiments, if an audio system is already installed in the vehicle, the in-vehicle audio effect algorithm is used to enhance at least one parameter of the audio signal so that the in-vehicle audio playback system and the in-vehicle audio system can play the audio signal in coordination, thereby improving the audio playback effect inside the vehicle. Optionally, the at least one parameter of the audio signal enhancement may include enhancing the performance parameters of a specific frequency band in the audio signal, etc.

[0052] If no other audio equipment is installed in the vehicle, the in-vehicle audio effect algorithm can perform comprehensive audio effect processing on the audio signal, enabling the above-mentioned in-vehicle audio playback system to emit sound in its complete form across the entire frequency range, ensuring the audio playback effect.

[0053] In some examples, the aforementioned in-vehicle audio playback system may also include a battery to power the system; the battery may be a removable, high-capacity battery that supports long-lasting playback in outdoor environments without power, while also being compatible with multiple power replenishment methods such as fast charging and solar charging to meet the needs of long-term use such as camping, picnics, and outdoor performances.

[0054] Optionally, the in-vehicle audio playback system can also be equipped with physical control buttons, which may include play / pause, track switching, volume adjustment and other functions, so that the in-vehicle audio playback system can complete the entire operation without relying on external devices, improving the convenience of outdoor use.

[0055] In the above-mentioned detachable in-vehicle audio playback system, the in-vehicle signal access module 110 can send a first signal to the processor 120 when it receives an in-vehicle signal source, so that the processor 120 receives the first signal and sends an in-vehicle mode signal to the audio effect processing module 130. When the audio effect processing module 130 receives the in-vehicle mode signal, it uses a preset in-vehicle audio effect algorithm to process the audio signal so that the signal processing process matches the in-vehicle scene. At this time, the above-mentioned in-vehicle audio playback system can be used as an in-vehicle audio system, participate in the operation of the whole vehicle audio system, and become part of the whole vehicle audio system. When receiving an outdoor mode signal or not receiving an in-vehicle mode signal, it uses a preset outdoor audio effect algorithm to process the audio signal so that the signal processing process matches the outdoor scene, so as to achieve seamless automatic switching of various scene modes and play the corresponding audio signal in various playback scenarios. It is evident that this application improves the flexibility and convenience of the detachable in-vehicle audio playback system. When used as an in-vehicle audio system, it can be linked with the music in the vehicle to enhance the bass response and provide passengers with a better music experience. When used as an outdoor audio system, it is easy to carry and can play music anytime and anywhere, achieving high-quality music playback in multiple scenarios.

[0056] Although this application has been shown and described with respect to one or more implementations, equivalent variations and modifications will occur to those skilled in the art based on a reading and understanding of this specification and the accompanying drawings. This application includes all such modifications and variations and is limited only by the scope of the appended claims. In particular, with respect to the various functions performed by the aforementioned components, the terminology used to describe such components is intended to correspond to any component (unless otherwise indicated) that performs the specified function of said component (e.g., is functionally equivalent to it), even if structurally not equivalent to the disclosed structure performing the functions in the exemplary implementations of this specification shown herein.

[0057] That is, the above description is only an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural changes made using the content of this application’s specification and drawings, such as the combination of technical features between different embodiments, or direct or indirect application in other related technical fields, are similarly included within the patent protection scope of this application.

[0058] Furthermore, it should be understood that in the description of this application, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Additionally, for structural elements with the same or similar characteristics, this application may use the same or different reference numerals for identification. Moreover, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0059] In this application, the term "exemplary" is used to mean "serving as an example, illustration, or description." Any embodiment described as "exemplary" in this application is not necessarily to be construed as more preferred or advantageous than other embodiments. This application has been provided above to enable any person skilled in the art to implement and use it. Various details have been set forth in the above description for purposes of explanation. It should be understood that those skilled in the art will recognize that this application can be implemented without using these specific details. In other embodiments, well-known structures and processes will not be described in detail to avoid obscuring the description of this application with unnecessary detail. Therefore, this application is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed herein.

Claims

1. A detachable car audio playback system, characterized by, The detachable vehicle-mounted audio playing system comprises a vehicle-mounted signal access module, a processor, an audio effect processing module and a playing module. The vehicle-mounted signal access module is configured to send a first signal to the processor when accessing a vehicle interior signal source. The processor is configured to send a vehicle-mounted mode signal to the audio effect processing module when receiving the first signal. The audio effect processing module is configured to access an audio signal, process the audio signal by using a preset vehicle-mounted audio effect algorithm when receiving the vehicle-mounted mode signal, process the audio signal by using a preset outdoor audio effect algorithm when not receiving the vehicle-mounted mode signal, and send the processed audio signal to the playing module. The playing module is configured to play the received audio signal.

2. The detachable car audio playback system of claim 1, wherein, The vehicle-mounted signal access module comprises a connection contact point configured to access the vehicle interior signal source when placed in a vehicle interior connection seat to generate the first signal.

3. The detachable car audio playback system of claim 1, wherein, The audio effect processing module comprises at least one of a Bluetooth communication module, a CD reading module, a storage device access module and an AUX audio input interface. The Bluetooth communication module is configured to perform Bluetooth communication with an external device to receive an audio signal and / or a control signal of the external device. The CD reading module is configured to load a CD and read an audio signal of the loaded CD. The storage device access module is configured to access a storage device and read a pre-stored audio signal in the storage device. The AUX audio input interface is configured to access at least one musical instrument or at least one player.

4. The detachable car audio playback system of claim 3, wherein, The audio effect processing module is further configured to identify environmental noise when running the outdoor audio effect algorithm and adjust an audio effect parameter according to an intensity of the environmental noise.

5. The detachable car audio playback system of claim 3, wherein, The detachable vehicle-mounted audio playing system further comprises a control device. The control device is in communication connection with the audio effect processing module and configured to display a control interface of the audio effect processing module to receive an adjustment instruction input by a user through the control interface.

6. The detachable car audio playback system of claim 3, wherein, The audio effect processing module is further configured to output a control entry on an interface of an external device when in communication connection with the external device. The external device is configured to load the control interface of the audio effect processing module to become a corresponding control device of the audio effect processing module in response to an entering operation corresponding to the control entry.

7. The detachable car audio playback system according to claim 5 or 6, wherein, The control device is configured to receive an audio effect adjustment parameter through the control interface and send the audio effect adjustment parameter to the audio effect processing module. The audio effect processing module is configured to adjust the outdoor audio effect algorithm in response to the audio effect adjustment parameter.

8. The detachable car audio playback system of claim 5 or 6, wherein, The control device is configured to obtain update information corresponding to the outdoor audio effect algorithm and send the update information to the audio effect processing module. The audio effect processing module is configured to update the outdoor audio effect algorithm in response to the update information.

9. The detachable car audio playback system of claim 1, wherein, The vehicle-mounted audio effect algorithm is configured to enhance at least one parameter of the audio signal to enable the vehicle-mounted audio playing system and a vehicle-mounted sound system to cooperatively play the audio signal.

10. The detachable car audio playback system of claim 1, wherein, The playing module comprises a power amplifier and a loudspeaker. A first end of the power amplifier is connected to an output end of the audio effect processing module, and a second end of the power amplifier is connected to an input end of the loudspeaker.

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