Audio separation compensation device and earphone

Abstract

The utility model discloses an audio separation compensation device and an earphone, and the device is provided with a first audio compensation network and a second audio compensation network which are connected with an audio signal input end, and the first audio compensation network is used for separating high-frequency signals in the range of 8kHz-20kHz from audio signals. The second audio compensation network is used for separating low-frequency signals with the frequency ranging from 20 Hz to 800 Hz from the audio signals, due to the fact that the frequencies of the separated audio signals are different, time differences exist, the time for inputting the high-frequency signals and the time for inputting the low-frequency signals into the loudspeaker are different, and when the loudspeaker finally outputs sound, a user can listen to the layering sense of the high frequency and the layering sense of the low frequency respectively. The sound effect is improved, and the song listening requirement of the user is met.

Description

Technical Field

[0001] The utility model relates to the field of audio, in particular to an audio separation compensation device and earphones. Background Art

[0002] Nowadays, due to the acoustic response of the cavity and speaker of TWS / OWS headphones, sounds of different frequencies are mixed together, and it is difficult to hear the layering of the sound when listening to music, resulting in poor effect. At the same time, some headphones, such as OWS headphones, have an open design and poor low-frequency response, which cannot meet the user's listening needs. Utility Model Content

[0003] The embodiment of the present application provides an audio separation compensation device and earphones to solve at least one problem existing in the related art. The technical solution is as follows:

[0004] In a first aspect, an embodiment of the present application provides an audio separation compensation device, comprising:

[0005] Audio signal input terminal;

[0006] A first audio compensation network, connected to the audio signal input terminal, for separating a high-frequency signal in the range of 8kHz-20kHz from the audio signal;

[0007] a second audio compensation network, connected to the audio signal input terminal, for separating a low-frequency signal in the range of 20 Hz-800 Hz from the audio signal;

[0008] A speaker is connected to the first audio compensation network and the second audio compensation network.

[0009] In one implementation, the audio signal input terminal includes a first input terminal and a second input terminal, the first input terminal is connected to a positive electrode of the audio signal, and the second input terminal is connected to a negative electrode of the audio signal.

[0010] In one embodiment, the first audio compensation network includes a first resistor, a first capacitor and a first inductor; one end of the first resistor is connected to the first input end and the positive electrode of the speaker, the other end of the first resistor is connected to one end of the first capacitor, the other end of the first capacitor is connected to the second input end and one end of the first inductor, and the other end of the first inductor is connected to the negative electrode of the speaker.

[0011] In one implementation, the resistance of the first resistor is 1Ω-10Ω, the capacitance of the first capacitor is 0.1uF-0.47uF, and the inductance of the first inductor is 15nH-120nH.

[0012] In one embodiment, the second audio compensation network includes a second resistor, a second capacitor and a second inductor; one end of the second resistor is connected to the first input terminal and the positive electrode of the speaker, the other end of the second resistor is connected to one end of the second inductor, the other end of the second inductor is connected to one end of the second capacitor, and the other end of the second capacitor is connected to the negative electrode of the speaker and the second input terminal.

[0013] In one implementation, the resistance of the second resistor is 10Ω-47Ω, the capacitance of the second capacitor is 100uF-470uF, and the inductance of the second inductor is 2.2MH-10MH.

[0014] In one embodiment, the audio separation and compensation device also includes a third audio compensation network, which is connected to the audio signal input terminal and the speaker, and is used to separate an intermediate frequency signal in the range of 800Hz-8kHz from the audio signal.

[0015] In one embodiment, the third audio compensation network includes a third resistor, a third capacitor and a third inductor; one end of the third resistor is connected to the first input end, the other end of the third resistor is connected to the positive electrode of the speaker, and the third capacitor and the third inductor are both connected in parallel with the third resistor; the resistance of the third resistor is 0.1Ω-1Ω, the capacitance of the third capacitor is 1uF-4.7uF, and the inductance of the third inductor is 15nH-120nH.

[0016] In one embodiment, the audio separation compensation device also includes a first bidirectional TVS tube and a second bidirectional TVS tube, one of the positive poles of the first bidirectional TVS tube is connected to one of the positive poles of the second bidirectional TVS tube and is grounded, the other positive pole of the first bidirectional TVS tube is connected to the negative pole of the speaker, and the other positive pole of the second bidirectional TVS tube is connected to the positive pole of the speaker.

[0017] In a second aspect, an embodiment of the present application provides a headset, comprising the audio separation compensation device.

[0018] The beneficial effects of the above technical solution include at least:

[0019] By setting up a first audio compensation network and a second audio compensation network to connect the audio signal input terminal, the first audio compensation network is used to separate the high-frequency signal in the range of 8kHz-20kHz in the audio signal, and the second audio compensation network is used to separate the low-frequency signal in the range of 20Hz-800Hz in the audio signal. Since the frequencies of the separated audio signals are different, there will be a time difference. Therefore, the time when the high-frequency signal and the low-frequency signal are input to the speaker is different. When the speaker finally outputs sound, the user can hear the layering of the high frequency and the low frequency respectively, thereby improving the sound effect and meeting the user's listening needs.

[0020] The above summary is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present application will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in the present application and should not be regarded as limiting the scope of the present application.

[0022] Figure 1 Schematic diagram of an audio separation and compensation device according to an embodiment of the present application. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0024] The terms "first", "second", "third", etc. in the specification and claims of this application and the drawings are only used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. Reference to "embodiments" herein means that the specific features, structures or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0025] The utility model is further explained and illustrated below in conjunction with the accompanying drawings and specific embodiments of the specification.

[0026] Reference Figure 1 An embodiment of the present application provides an audio separation compensation device, including an audio signal input terminal, a first audio compensation network, a second audio compensation network, a third audio compensation network, a speaker SPK, a first bidirectional TVS tube D1 and a second bidirectional TVS tube D2.

[0027] In the embodiment of the present application, the audio signal input end includes a first input end (SPK_I N_P) and a second input end (SPK_I N_N), the first input end is connected to the positive pole of the audio signal, and the second input end is connected to the negative pole of the audio signal.

[0028] In an embodiment of the present application, the first audio compensation network is connected to the audio signal input terminal, and is used to separate the high-frequency signal in the range of 8kHz-20kHz from the audio signal. Optionally, the first audio compensation network includes a first resistor R1, a first capacitor C1 and a first inductor L1; one end of the first resistor R1 is connected to the first input terminal and the positive electrode of the speaker SPK, the other end of the first resistor R1 is connected to one end of the first capacitor C1, the other end of the first capacitor C1 is connected to the second input terminal and one end of the first inductor L1, and the other end of the first inductor L1 is connected to the negative electrode of the speaker SPK. The resistance of the first resistor R1 is 1Ω-10Ω, the capacitance of the first capacitor C1 is 0.1uF-0.47uF, and the inductance of the first inductor L1 is 15nH-120nH.

[0029] In an embodiment of the present application, a second audio compensation network is connected to the audio signal input terminal, and is used to separate a low-frequency signal in the range of 20Hz-800Hz from the audio signal. Optionally, the second audio compensation network includes a second resistor R2, a second capacitor C2, and a second inductor L2; one end of the second resistor R2 is connected to the first input terminal and the positive electrode of the speaker SPK, the other end of the second resistor R2 is connected to one end of the second inductor L2, the other end of the second inductor L2 is connected to one end of the second capacitor C2, and the other end of the second capacitor C2 is connected to the negative electrode of the speaker SPK and the second input terminal. Among them, the resistance of the second resistor R2 is 10Ω-47Ω, the capacitance of the second capacitor C2 is 100uF-470uF, and the inductance of the second inductor L2 is 2.2MH-10MH.

[0030] In an embodiment of the present application, the third audio compensation network is connected to the audio signal input terminal and the speaker SPK, and the third audio compensation network is used to separate the intermediate frequency signal in the range of 800Hz-8kHz from the audio signal. Optionally, the third audio compensation network includes a third resistor R3, a third capacitor C3 and a third inductor L3; one end of the third resistor R3 is connected to the first input terminal, and the other end of the third resistor R3 is connected to the positive electrode of the speaker SPK, and the third capacitor C3 and the third inductor L3 are both connected in parallel with the third resistor R3. Among them, the resistance of the third resistor R3 is 0.1Ω-1Ω, the capacitance of the third capacitor C3 is 1uF-4.7uF, and the inductance of the third inductor L3 is 15nH-120nH.

[0031] In the embodiment of the present application, the speaker SPK is connected to the first audio compensation network, the second audio compensation network and the third audio compensation network.

[0032] In the embodiment of the present application, one of the positive electrodes of the first bidirectional TVS tube D1 is connected to one of the positive electrodes of the second bidirectional TVS tube D2 and is grounded, the other positive electrode of the first bidirectional TVS tube D1 is connected to the negative electrode of the speaker SPK, and the other positive electrode of the second bidirectional TVS tube D2 is connected to the positive electrode of the speaker SPK. The first bidirectional TVS tube D1 and the second bidirectional TVS tube D2 function to superimpose the positive and negative signals in the audio signal.

[0033] In the embodiment of the present application, by setting the first audio compensation network, the second audio compensation network and the third audio compensation network, the first audio compensation network separates the high-frequency signal in the range of 8kHz-20kHz in the audio signal, the second audio compensation network separates the low-frequency signal in the range of 20Hz-800Hz in the audio signal, and the third audio compensation network is used to separate the intermediate frequency signal in the range of 800Hz-8kHz in the audio signal. Since the classified audio signals have frequency differences, there is a time difference. Based on the time difference, the time of the signal input to the speaker SPK is different, so the user can hear the layering of the high frequency, intermediate frequency and low frequency respectively, so as to achieve the purpose of sound wave separation, improve the response characteristics of the speaker SPK to high, medium and low frequencies, realize the music compensation of different frequencies, improve the listening effect of the sound, improve the user's listening experience, and meet the user's listening needs. It should be noted that the above time difference is generated based on the high and low frequencies themselves; in addition, the signal output by the speaker SPK is sorted based on the frequency of the music. If the music comes out first at low frequency, then the speaker SPK outputs the low frequency first, and if the music comes out first at high frequency, then the speaker SPK outputs the high frequency first.

[0034] In an embodiment of the present application, a headset is also provided, comprising the above-mentioned audio separation compensation device.

[0035] The above is a specific description of the preferred implementation of the utility model, but the utility model is not limited to the implementation method. Technical personnel familiar with the field can also make various equivalent deformations or substitutions without violating the spirit of the utility model. These equivalent deformations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. An audio separation compensation device, characterized in that: include: Audio signal input terminal; A first audio compensation network, connected to the audio signal input terminal, for separating a high-frequency signal in the range of 8kHz-20kHz from the audio signal; A second audio compensation network, connected to the audio signal input terminal, for separating a low-frequency signal in the range of 20 Hz-800 Hz from the audio signal; A speaker is connected to the first audio compensation network and the second audio compensation network.

2. The audio separation compensation device according to claim 1, characterized in that: The audio signal input end includes a first input end and a second input end, the first input end is connected to the positive electrode of the audio signal, and the second input end is connected to the negative electrode of the audio signal.

3. The audio separation compensation device according to claim 2, characterized in that: The first audio compensation network includes a first resistor, a first capacitor and a first inductor; one end of the first resistor is connected to the first input end and the positive electrode of the speaker, the other end of the first resistor is connected to one end of the first capacitor, the other end of the first capacitor is connected to the second input end and one end of the first inductor, and the other end of the first inductor is connected to the negative electrode of the speaker.

4. The audio separation compensation device according to claim 3, characterized in that: The resistance of the first resistor is 1Ω-10Ω, the capacitance of the first capacitor is 0.1uF-0.47uF, and the inductance of the first inductor is 15nH-120nH.

5. The audio separation compensation device according to claim 2, characterized in that: The second audio compensation network includes a second resistor, a second capacitor and a second inductor; one end of the second resistor is connected to the first input terminal and the positive electrode of the speaker, the other end of the second resistor is connected to one end of the second inductor, the other end of the second inductor is connected to one end of the second capacitor, and the other end of the second capacitor is connected to the negative electrode of the speaker and the second input terminal.

6. The audio separation compensation device according to claim 5, characterized in that: The resistance of the second resistor is 10Ω-47Ω, the capacitance of the second capacitor is 100uF-470uF, and the inductance of the second inductor is 2.2MH-10MH.

7. The audio separation compensation device according to claim 2, characterized in that: The audio separation and compensation device also includes a third audio compensation network, which is connected to the audio signal input terminal and the speaker, and is used to separate an intermediate frequency signal in the range of 800 Hz-8 kHz from the audio signal.

8. The audio separation compensation device according to claim 7, characterized in that: The third audio compensation network includes a third resistor, a third capacitor and a third inductor; one end of the third resistor is connected to the first input end, the other end of the third resistor is connected to the positive electrode of the speaker, and the third capacitor and the third inductor are both connected in parallel with the third resistor; the resistance of the third resistor is 0.1Ω-1Ω, the capacitance of the third capacitor is 1uF-4.7uF, and the inductance of the third inductor is 15nH-120nH.

9. The audio separation compensation device according to any one of claims 1 to 8, characterized in that: The audio separation compensation device also includes a first bidirectional TVS tube and a second bidirectional TVS tube, one of the positive poles of the first bidirectional TVS tube is connected to one of the positive poles of the second bidirectional TVS tube and is grounded, the other positive pole of the first bidirectional TVS tube is connected to the negative pole of the speaker, and the other positive pole of the second bidirectional TVS tube is connected to the positive pole of the speaker.

10. An earphone, characterized in that: It comprises the audio separation compensation device as described in any one of claims 1-9.

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