Self-adaptive voice noise reduction interphone

Abstract

The utility model discloses a self-adaptive voice noise reduction interphone comprising a PCB, the PCB is provided with a voice noise reduction module, a VHF transmit-receive module, a baseband module and a radio frequency module, the baseband module is connected with the voice noise reduction module and the radio frequency module, and the VHF transmit-receive module is connected with the baseband module. The voice noise reduction module receives audio signals and filters dynamic noise and hydrodynamic noise in the audio signals, the radio frequency module transmits the signals to the baseband module, and the radio frequency module is connected with the VHF transceiver module. The VHF transceiver module converts an audio signal into a radio frequency signal of a VHF frequency band and sends the radio frequency signal of the VHF frequency band from an interphone, and the baseband module is used for coding input digital data so as to modulate the digital data through the radio frequency module. According to the utility model, high-quality voice talkback can be realized by externally connecting the hearing aid without additionally changing channels, reducing volume and changing scenes, and the stability and reliability of communication are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of walkie - talkies, and particularly to an adaptive voice noise reduction walkie - talkie. Background Art

[0002] Traditional walkie - talkies usually only support voice communication in relatively quiet environments. In noisy environments, they will be interfered by background noise. Especially when used in dynamic noise and hydrodynamic noise, it will bring poor call quality to users and make it difficult to distinguish human voices.

[0003] In the prior art, in order to achieve high - quality voice communication, additional operations such as changing channels, reducing volume, changing scenarios, and connecting external hearing aids are required. This not only increases the limitations and complexity of the device, but also may affect the stability and reliability of communication. Therefore, a walkie - talkie with internal adaptive voice noise reduction is needed to solve the above problems. Summary of the Utility Model

[0004] The main purpose of the utility model is to propose an adaptive voice noise reduction walkie - talkie, aiming to improve the stability and reliability of communication.

[0005] To achieve the above purpose, an adaptive voice noise reduction walkie - talkie proposed by the utility model includes a PCB board. A voice noise reduction module, a VHF transceiver module, a baseband module, and a radio frequency module are arranged on the PCB board. The baseband module is connected to the voice noise reduction module and the radio frequency module. The voice noise reduction module receives an audio signal and filters out dynamic noise and hydrodynamic noise in the audio signal. The radio frequency module transmits a signal to the baseband module. The radio frequency module is connected to the VHF transceiver module. The VHF transceiver module converts the audio signal into a radio frequency signal in the VHF band and emits the radio frequency signal in the VHF band from the walkie - talkie. The baseband module is used to encode the input digital data for modulation through the radio frequency module.

[0006] In one embodiment, the voice noise reduction module includes a main control module and a codec. The codec converts the audio signal received by the walkie - talkie into a digital signal, and the main control module receives the digital signal converted by the codec.

[0007] In one embodiment, the walkie - talkie further includes a housing, and a plurality of buttons are arranged on the housing. The buttons are used to switch different communication channels or frequencies.

[0008] In one embodiment, the walkie - talkie further includes a speaker, and the speaker is connected to the baseband module. The speaker is used to convert the received audio signal into sound.

[0009] In one embodiment, the walkie-talkie includes a display screen, which is installed on the surface of the housing, and the display screen is used to display the currently used channel or frequency.

[0010] In one embodiment, the display screen is an LCD display screen.

[0011] In one embodiment, the walkie-talkie is provided with an equalizer, which is connected to the main control module, and the equalizer is used to adjust the frequency response of the audio signal.

[0012] In one embodiment, the walkie-talkie includes a power supply module, which is located inside the housing, and the power supply module is used to provide power for the walkie-talkie.

[0013] The present utility model realizes adaptive filtering of dynamic noise and hydrodynamic noise by adopting a voice noise reduction module; transmits and receives wireless signals through a radio frequency module, encodes the input digital data by a baseband module for modulation through the radio frequency module, and a VHF transceiver module processes wireless signals in the VHF band, realizing high-quality voice intercom without additional channel switching, volume reduction, scene switching, or external hearing aids, and improving the stability and reliability of communication. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0015] Figure 1 It is the module schematic diagram of the adaptive voice noise reduction walkie-talkie;

[0016] Figure 2 It is the circuit diagram of the main control module;

[0017] Figure 3 It is the circuit diagram of the codec.

[0018] Explanation of the reference numerals in the drawings:

[0019] 1 - Baseband module, 2 - Radio frequency module, 3 - VHF transceiver module, 4 - Voice noise reduction module, 5 - Main control module, 6 - Codec.

[0020] The realization of the object, functional features, and advantages of the present utility model will be further described in conjunction with the embodiments with reference to the drawings. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts belong to the scope protected by the present utility model.

[0022] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0023] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or a solution where A and B are satisfied simultaneously. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0024] The present utility model provides an adaptive voice noise reduction walkie-talkie, which includes a PCB board. A voice noise reduction module 4, a VHF transceiver module 3, a baseband module 1, and a radio frequency module 2 are arranged on the PCB board. The baseband module 1 is connected to the voice noise reduction module 4 and the radio frequency module 2. The voice noise reduction module 4 receives an audio signal and filters out dynamic noise and hydrodynamic noise in the audio signal. The radio frequency module 2 transmits a signal to the baseband module 1. The radio frequency module 2 is connected to the VHF transceiver module 3. The VHF transceiver module 3 converts the audio signal into a radio frequency signal in the VHF band and emits the radio frequency signal in the VHF band from the walkie-talkie. The baseband module 1 is used to encode the input digital data for modulation through the radio frequency module 2.

[0025] In the embodiments of the present utility model, as Figure 1As shown, the adaptive voice noise reduction module 4 is integrated on the PCB board of the walkie-talkie. When the user uses the walkie-talkie, during a voice call, it can automatically determine whether it is human voice or external noise. The human voice will be enhanced, and conversely, the noise will be filtered out, enabling normal voice communication even in a noisy environment without being interfered by external noise. Especially in ships, yachts, base stations at sea level, there will be wind noise, biological noise, rain noise, earthquake noise, etc. This adaptive voice noise reduction walkie-talkie can be free from these noises and achieve adaptive voice noise reduction communication; this utility model realizes adaptive filtering of dynamic noise and hydrodynamic noise by adopting the voice noise reduction module 4; the radio frequency module 2 is used to transmit and receive wireless signals, the baseband module 1 encodes the input digital data for modulation by the radio frequency module 2, and the VHF transceiver module 3 processes the wireless signals in the VHF band. High-quality voice communication can be achieved without the need for additional channel switching, volume reduction, scene change, or external hearing aids, and the communication stability and reliability are improved.

[0026] As Figure 2 and Figure 3 As shown, the voice noise reduction module 4 includes a main control module 5 and a codec 6. The codec 6 converts the audio signal received by the walkie-talkie into a digital signal, and the main control module 5 receives the digital signal converted by the codec 6. The codec 6 of the walkie-talkie converts the audio signal into digital data to reduce the bandwidth required for transmission, which helps improve the transmission efficiency and quality of the signal; the received digital data is decoded and converted back into an audio signal for the user to hear clear voice; the processing speed is optimized to reduce the delay of audio transmission and ensure real-time communication.

[0027] The walkie-talkie also includes a housing, and several buttons are arranged on the housing. The buttons are used to switch different communication channels or frequencies. The buttons in this embodiment include but are not limited to: a power button for turning on or off the walkie-talkie; a call button (or PTT, Push-to-Talk button), which starts sending sound when pressed and stops sending when released; a channel selection button for switching different communication channels or frequencies; a volume adjustment button for increasing or decreasing the heard volume; a menu button for entering the settings menu to adjust various parameters of the walkie-talkie, such as channels, volume, scan settings, etc.; a scan button for starting or stopping channel scanning to find other active channels or users; an emergency call button for sending an emergency signal or alarm notification, usually used in situations where immediate attention is required; function buttons that can be customized for specific functions, such as quick dialing, setting shortcuts, etc.; a mute button for temporarily turning off the sound output to avoid interference; a backlight button for controlling the backlight brightness of the walkie-talkie screen or buttons, facilitating use in low-light environments.

[0028] The walkie-talkie further includes a speaker, which is connected to the baseband module 1 and is used to convert the received audio signal into sound. The speaker on the walkie-talkie is responsible for converting the received audio signal into sound, allowing users to hear the voice communication of other users; the speaker can also emit various warning sounds, such as signal reception prompt sounds, low battery warning sounds, channel change prompt sounds, etc.

[0029] The walkie-talkie includes a display screen, which is installed on the surface of the casing and is used to display the currently used channel or frequency. The display screen is an LCD display screen. The display screen of the walkie-talkie can display the currently selected communication channel or frequency, facilitating users to know which channel they are using for communication; it can also display an icon or bar graph of the signal strength to help users judge the signal strength and optimize the communication quality; and display the remaining battery power or battery status to remind users when to charge or replace the battery.

[0030] The walkie-talkie is provided with an equalizer, which is connected to the main control module 5 and is used to adjust the frequency response of the audio signal. By adjusting the low frequency or high frequency, it reduces the interference of ambient noise and improves the communication quality; it improves the clarity and timbre of the audio, making the voice clearer and easier to understand in different environments.

[0031] The walkie-talkie includes a power supply module, which is located inside the casing and is used to provide power for the walkie-talkie.

[0032] The structure of the walkie-talkie in this embodiment is simple, easy to produce and maintain, and the cost is relatively low; the walkie-talkie can be used by users in a noisy environment. The walkie-talkie realizes an adaptive voice noise reduction function internally, avoiding the interference of the external noisy environment, especially filtering out dynamic noise and hydrodynamic noise. It improves the reliability and stability of communication.

[0033] The above are only optional embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made under the inventive concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. An adaptive voice noise reduction intercom, characterized in that: It comprises a PCB board, on which a voice noise reduction module, a VHF transceiver module, a baseband module and a radio frequency module are arranged, the baseband module is connected with the voice noise reduction module and the radio frequency module, the voice noise reduction module receives an audio signal and filters out dynamic noise and hydrodynamic noise in the audio signal, the radio frequency module transmits a signal to the baseband module, the radio frequency module is connected with the VHF transceiver module, the VHF transceiver module converts the audio signal into a radio frequency signal in the VHF frequency band and sends the radio frequency signal in the VHF frequency band from the interphone, and the baseband module is used for encoding input digital data so as to modulate it through the radio frequency module.

2. The adaptive voice noise reduction intercom according to claim 1, characterized in that: The speech noise reduction module includes a main control module and a codec. The codec converts the audio signal received by the intercom into a digital signal, and the main control module receives the digital signal converted by the codec.

3. The adaptive voice noise reduction intercom according to claim 1, characterized in that: The intercom further comprises a casing, on which a plurality of buttons are arranged, and the buttons are used to switch different communication channels or frequencies.

4. The adaptive voice noise reduction intercom according to claim 3, characterized in that: The intercom further comprises a speaker, which is connected to the baseband module and is used for converting a received audio signal into sound.

5. The adaptive voice noise reduction intercom according to claim 3, characterized in that: The intercom comprises a display screen, which is mounted on the surface of the casing and is used to display a channel or frequency currently in use.

6. The adaptive voice noise reduction intercom according to claim 5, characterized in that: The display screen is an LCD display screen.

7. The adaptive voice noise reduction intercom according to claim 2, characterized in that: The intercom is provided with an equalizer, which is connected to the main control module and is used to adjust the frequency response of the audio signal.

8. The adaptive voice noise reduction intercom according to claim 3, characterized in that: The intercom comprises a power supply module, which is located in the housing and is used to provide power for the intercom.

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