Sound effect adjusting system based on two-way input and Bluetooth earphone

Abstract

The utility model provides a sound effect adjusting system based on double-path input and a Bluetooth earphone wherein the sound effect adjusting system based on double-path input comprises a processor, a switching module electrically connected with the processor, a first preprocessing module, an audio output module and a six-axis sensor. And the first audio input module is electrically connected with the first preprocessing module. The first preprocessing module comprises a first variable gain amplifier electrically connected with the processor and the first audio input module, the first audio input module is used for transmitting an input audio signal to the processor, a plurality of sound effect modes are set in the processor, and the switching module is matched to select the sound effect modes, so that the sound effect is realized. Therefore, the user can adopt adaptive sound effect modes according to different purposes, the situation that many details are lost when the user plays games or listens to music, and the experience of playing games or listening to music is affected is prevented, and the use experience of the user is improved.

Description

[Technical field]

[0001] The utility model relates to the technical field of audio regulation, in particular to a sound effect regulation system based on dual-channel input and a Bluetooth headset. [Background technology]

[0002] As we all know, Bluetooth headsets are hands-free headsets that apply Bluetooth technology to them, allowing users to avoid the entanglement of annoying wires and make calls in various ways. At present, in order to pursue sound quality, existing Bluetooth headsets often have only one sound effect mode, either suitable for games or suitable for listening to music. In this way, when headphones suitable for games are used to listen to music, they often lose a lot of details in the music due to low-frequency amplification and high-frequency attenuation, and headphones suitable for listening to music are also not effective when used to play games.

[0003] Therefore, the existing technology needs to be improved and developed. [Utility Model Content]

[0004] The purpose of the utility model is to provide a sound effect adjustment system and a Bluetooth headset based on dual-channel input, which can switch between high-frequency attenuation, low-frequency enhancement and other effects, so as to solve the problem that the existing Bluetooth headset has only one sound effect mode suitable for playing games and listening to music, resulting in poor effects.

[0005] The technical solution of the utility model is as follows:

[0006] On the one hand, the utility model provides a sound effect adjustment system based on dual-channel input, comprising: a processor, a switching module electrically connected to the processor, a first pre-processing module, an audio output module and a six-axis sensor, and a first audio input module electrically connected to the first pre-processing module;

[0007] The first preprocessing module includes a first variable gain amplifier electrically connected to the processor and the first audio input module respectively, the first audio input module is used to receive the first audio signal and transmit the first audio signal to the first variable gain amplifier, and the first variable gain amplifier is used to amplify the first audio signal input by the first audio input module and transmit the amplified first audio signal to the processor;

[0008] The six-axis sensor is used to detect gravity changes and convert the gravity changes into electrical signals and feed them back to the processor. The switching module is used to detect the user's operation instructions and feed back control signals to the processor according to the operation instructions. The processor is provided with multiple sound effect modes. The processor processes the amplified first audio signal according to the electrical signal and the control signal in a sound effect mode corresponding to the control signal to form a first processed audio. The processor also outputs the first processed audio through the audio output module.

[0009] Furthermore, the sound effect adjustment system based on dual-channel input also includes a second audio input module and a second pre-processing module electrically connected to the second audio input module and the processor respectively.

[0010] Furthermore, the second preprocessing module includes a second variable gain amplifier electrically connected to the second audio input module and the processor respectively, and the second variable gain amplifier is used to amplify the second audio signal of the second audio input module and transmit the amplified second audio signal to the processor. The processor processes the amplified second audio signal in a sound effect mode corresponding to the control signal according to the control signal to form a second processed audio, and the processor also outputs the second processed audio through the audio output module.

[0011] Furthermore, the first audio input module is a wireless module, and the second audio input module is a pickup.

[0012] Furthermore, the number of the pickups is two.

[0013] Furthermore, the first preprocessing module also includes a first low-noise amplifier, a first mixer and a first complex filter located between the first audio input module and the first variable gain amplifier, the first low-noise amplifier is electrically connected to the first audio input module and the first mixer, respectively, and the first complex filter is electrically connected to the first mixer and the first variable gain amplifier, respectively.

[0014] Furthermore, the second preprocessing module also includes a second low-noise amplifier, a second mixer and a second complex filter located between the second audio input module and the second variable gain amplifier, the second low-noise amplifier is electrically connected to the second audio input module and the second mixer, respectively, and the second complex filter is electrically connected to the second mixer and the second variable gain amplifier, respectively.

[0015] Furthermore, the switching module is a button or a capacitive touch component.

[0016] Furthermore, the wireless module is a Bluetooth module.

[0017] On the other hand, the utility model also provides a Bluetooth headset, including the sound effect adjustment system based on dual-channel input as described above.

[0018] The beneficial effect of the utility model is that compared with the prior art, the utility model sets a plurality of sound effect modes in the processor, and selects the sound effect modes in conjunction with the switching module, so that users can use adaptive sound effect modes according to different purposes, so as to prevent the user from losing many details of the audio when playing games or listening to music, which affects the experience of playing games or listening to music, and improve the user's use experience. In addition, the utility model also sets a first variable gain amplifier, so that the user or the manufacturer can adjust the amplification factor of the audio signal through the first variable gain amplifier to adjust the applicable sound effect.

Brief Description of the Drawings

[0019] Figure 1 This is a principle block diagram of the utility model;

[0020] Figure 2 It is a principle block diagram of the first audio input module, the first preprocessing module, the second audio input module, the second preprocessing module and the processor of the utility model;

[0021] Figure 3 This is a principle block diagram of the processor and six-axis sensor of the utility model. [Specific implementation method]

[0022] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0023] Please refer to the attached Figure 1-3 , a sound effect adjustment system based on dual-channel input in an embodiment of the utility model.

[0024] Refer to the attached Figure 1 The sound effect adjustment system based on dual-channel input includes: a processor 7, a switching module 5 electrically connected to the processor 7, a first preprocessing module 2, an audio output module 8 and a six-axis sensor 6, and a first audio input module 1 electrically connected to the first preprocessing module 2.

[0025] The first preprocessing module 2 includes a first variable gain amplifier 24 electrically connected to the processor 7 and the first audio input module 1 respectively. The first audio input module 1 is used to receive the first audio signal and transmit the first audio signal to the first variable gain amplifier 24. The first variable gain amplifier 24 is used to amplify the first audio signal input by the first audio input module 1 and transmit the amplified first audio signal to the processor 7. The six-axis sensor 6 is used to detect gravity changes and convert the gravity changes into electrical signals and feed them back to the processor 7. The switching module 5 is used to detect the user's operation instructions and feed back control signals to the processor 7 according to the operation instructions. The processor 7 is provided with a plurality of sound effect modes. The processor 7 processes the amplified first audio signal according to the electrical signal and the control signal in a sound effect mode corresponding to the control signal to form a first processed audio. The processor 7 also outputs the first processed audio through the audio output module 8.

[0026] The utility model sets a plurality of sound effect modes in the processor 7, and cooperates with the switching module 5 to select the sound effect mode, so that the user can use the adaptive sound effect mode according to different purposes, so as to prevent the user from losing many details of the audio when playing games or listening to music, which affects the experience of playing games or listening to music, and improve the user's use experience. In addition, the utility model also sets a first variable gain amplifier 24, so that the user or the manufacturer can adjust the amplification factor of the audio signal through the first variable gain amplifier 24 to adjust the applicable sound effect.

[0027] In one embodiment, the sound effect adjustment system based on dual-channel input further includes a second audio input module 3 and a second pre-processing module 4 electrically connected to the second audio input module 3 and the processor 7. The second audio input module 3 cooperates with the second pre-processing module 4 to input different audios, and the switching module 5 and the processor 7 cooperate to allow the user to select the sound effect mode according to the sound effect required by the user.

[0028] In one embodiment, in order to facilitate the adjustment of the gain effect of the audio input by the second audio input module 3, the second preprocessing module 4 includes a second variable gain amplifier 44 electrically connected to the second audio input module 3 and the processor 7 respectively. The second variable gain amplifier 44 is used to amplify the second audio signal of the second audio input module and transmit the amplified second audio signal to the processor 7. The processor 7 processes the amplified second audio signal according to the control signal in a sound effect mode corresponding to the control signal to form a second processed audio. The processor 7 also outputs the second processed audio through the audio output module 8.

[0029] Specifically, in one embodiment, the first audio input module 1 is a wireless module, and the second audio input module 3 is a microphone. The wireless module is used to communicate with an external device to receive the second audio data transmitted from the external device, and to cooperate with the external device, wherein the external device can be a mobile phone, a tablet, a computer, etc. The sound is picked up by the microphone, and after being processed by the second pre-processing module 4 and the processor 7, it can be wirelessly transmitted by the wireless module after passing through the first audio processing unit 74, so as to realize a conversation with others through the sound effect adjustment system based on dual-channel input of the utility model.

[0030] In one embodiment, the number of microphones is two. One microphone is used to pick up ambient audio to enable conversations with others. The other microphone is used to pick up the internal audio of the sound effect adjustment system based on dual-channel input, and the ambient sound is eliminated by the first pre-processing module 2 and the processor 7 to achieve noise reduction. In fact, the number of microphones can be an even number, and the corresponding microphones are used for mutual comparison.

[0031] Refer to the attached Figure 3 In the above embodiment, the processor 7 includes an analog-to-digital conversion unit 72, a digital-to-analog conversion unit 73, a CODEC module 71, a processing unit 74 and a sound effect processing module 75, wherein a plurality of sound effect modes are arranged in the processing unit 74, the sound effect processing module 75 connects the processing unit 74 and the six-axis sensor 6, and the sound effect processing module 75 includes a surround sound unit, a bass emphasis unit and a high frequency attenuation unit to adjust various parameters of the audio according to the sound effect mode defined by the processing unit 74 to achieve different sound output effects.

[0032] Specifically, the CODEC module 71 is used to decompress the audio signal input by the first variable gain amplifier 24 and the second variable gain amplifier 44 and transmit it to the analog-to-digital conversion unit 72. The analog-to-digital conversion unit 72 converts the analog signal input by the CODEC module 71 into a digital signal for processing by the processing unit 74 and the sound effect module. The digital-to-analog conversion unit 73 is used to convert the digital signal output by the processing unit 74 into an analog signal and transmit the analog signal to the CODEC module 71. The CODEC module 71 transmits the analog signal output by the digital-to-analog conversion unit 73 to the first preprocessing module 2, and then the wireless module performs wireless transmission. The six-axis sensor 6 senses the change in the direction of the user's head, adjusts the sound volume in different directions, achieves precise positioning, and provides users with a better sound effect experience. The sound effect mode includes game mode, music mode, audio and video mode, etc. The game mode mainly uses a bass emphasis unit and a high-frequency weakening unit to amplify low-frequency sound and weaken high-frequency sound, capture more low-frequency details (such as footsteps in the game), and weaken the high-frequency part (such as gunshots) to meet the use of game scenes. The music mode mainly uses a surround sound unit and a bass emphasis unit, so that both high and low frequencies of the sound are retained, and surround sound and bass emphasis effects are obtained to better express the rhythm of the music and meet the use of music and other scenes. The audio and video mode mainly uses a surround sound unit to better express the sense of space, and retains the high, low and echo effects, which is suitable for audio and video scenes. Therefore, the cooperation of the switching module 5 and the processor 7 can realize the output of the sound effects desired by the user to meet the different scenarios of the user.

[0033] It should be noted that the analog-to-digital conversion unit 72, the digital-to-analog conversion unit 73, the processing unit 74 and the CODEC module 71 can be integrated into one chip, and the CODEC module 71 can also be a separate chip, which is not limited here.

[0034] Refer to the attached Figure 2 In one embodiment, the first preprocessing module 2 further includes a first low noise amplifier 21, a first mixer 22 and a first complex filter 23 located between the first audio input module 1 and the first variable gain amplifier 24. The first low noise amplifier 21 is electrically connected to the first audio input module 1 and the first mixer 22, respectively, and the first complex filter 23 is electrically connected to the first mixer 22 and the first variable gain amplifier 24, respectively. The first audio signal received by the wireless module is amplified by the first low noise amplifier 21, mixed by the first mixer 22, filtered by the first complex filter 23 and amplified by the first variable gain amplifier 24, and then transmitted to the processor 7 for processing to achieve audio balance transmitted to the processor 7. Developers can selectively filter and amplify each audio segment input by the wireless module according to different sound effect modes to achieve the desired sound effect.

[0035] In one embodiment, the second preprocessing module 4 further includes a second low noise amplifier 41, a second mixer 42, and a second complex filter 43 located between the second audio input module 3 and the second variable gain amplifier 44. The second low noise amplifier 41 is electrically connected to the second audio input module 3 and the second mixer 42, respectively, and the second complex filter 43 is electrically connected to the second mixer 42 and the second variable gain amplifier 44, respectively. The second audio signal picked up by the microphone is amplified by the second low noise amplifier 41, mixed by the second mixer 42, filtered by the second complex filter 43, and amplified by the second variable gain amplifier 44, and then transmitted to the processor 7 for processing to achieve audio balance transmitted to the processor 7. Developers can selectively filter and amplify the audio input by the microphone according to different sound effect modes to achieve the desired sound effect.

[0036] In the above embodiment, the switching module 5 can be a button or a capacitive touch component. When the switching module 5 is a button, the processor 7 selects the corresponding sound effect mode by detecting the button signal. When the switching module 5 is a capacitive touch component, the capacitive touch component uses a capacitive touch chip with a capacitor and a sensing metal sheet. When the user touches the metal sheet, the capacitive touch chip can detect the change in capacitance. The capacitive touch chip sends a control instruction to the processor 7 according to the change in capacitance to realize the selection of the sound effect.

[0037] The audio processing module can be a speaker or an audio output interface, and the audio output interface can be connected to a speaker to achieve audio playback. The wireless module can be a Bluetooth module, a WI FI module, etc. In addition, when the above-mentioned sound effect adjustment system based on dual-channel input is applied to a Bluetooth headset, the wireless module is a Bluetooth module, and the switching module 5 is a capacitive touch component to achieve input of commands such as volume adjustment, power on / off, and sound effect mode, which is convenient for users to use. The above is only an implementation method of the utility model. It should be pointed out that for ordinary technicians in this field, improvements can be made without departing from the creative concept of the utility model, but these all belong to the protection scope of the utility model.

Claims

1. A sound effect adjustment system based on dual-channel input, characterized in that: include: A processor, a switching module electrically connected to the processor, a first preprocessing module, an audio output module and a six-axis sensor, and a first audio input module electrically connected to the first preprocessing module; The first preprocessing module includes a first variable gain amplifier electrically connected to the processor and the first audio input module respectively, the first audio input module is used to receive the first audio signal and transmit the first audio signal to the first variable gain amplifier, and the first variable gain amplifier is used to amplify the first audio signal input by the first audio input module and transmit the amplified first audio signal to the processor; The six-axis sensor is used to detect gravity changes and convert the gravity changes into electrical signals and feed them back to the processor. The switching module is used to detect the user's operation instructions and feed back control signals to the processor according to the operation instructions. The processor is equipped with multiple sound effect modes. The processor processes the amplified first audio signal to form a first processed audio according to the electrical signal, the control signal, and the sound effect mode corresponding to the control signal. The processor also outputs the first processed audio through the audio output module.

2. The sound effect adjustment system based on dual-channel input according to claim 1, characterized in that: The sound effect adjustment system based on dual-channel input also includes a second audio input module and a second pre-processing module electrically connected to the second audio input module and the processor respectively.

3. The sound effect adjustment system based on dual-channel input according to claim 2, characterized in that: The second preprocessing module includes a second variable gain amplifier electrically connected to the second audio input module and the processor respectively. The second variable gain amplifier is used to amplify the second audio signal of the second audio input module and transmit the amplified second audio signal to the processor. The processor processes the amplified second audio signal to form a second processed audio according to the control signal and the sound effect mode corresponding to the control signal. The processor also outputs the second processed audio through the audio output module.

4. The sound effect adjustment system based on dual-channel input according to claim 3, characterized in that: The first audio input module is a wireless module, and the second audio input module is a pickup.

5. The sound effect adjustment system based on dual-channel input according to claim 4, characterized in that: The first preprocessing module also includes a first low-noise amplifier, a first mixer and a first complex filter located between the first audio input module and the first variable gain amplifier. The first low-noise amplifier is electrically connected to the first audio input module and the first mixer, respectively, and the first complex filter is electrically connected to the first mixer and the first variable gain amplifier, respectively.

6. The sound effect adjustment system based on dual-channel input according to claim 5, characterized in that: The second preprocessing module also includes a second low-noise amplifier, a second mixer and a second complex filter located between the second audio input module and the second variable gain amplifier. The second low-noise amplifier is electrically connected to the second audio input module and the second mixer, respectively, and the second complex filter is electrically connected to the second mixer and the second variable gain amplifier, respectively.

7. The sound effect adjustment system based on dual-channel input according to claim 6, characterized in that: The switching module is a button or a capacitive touch component.

8. The sound effect adjustment system based on dual-channel input according to claim 7, characterized in that: The wireless module is a Bluetooth module.

9. A Bluetooth headset, characterized in that: It comprises a sound effect adjustment system based on dual-channel input as described in any one of claims 1-8.

Images