WO2018010375A1 - Method and device for realising karaoke function through earphone, and earphone - Google Patents

Abstract

Disclosed are a method for realising a karaoke function through an earphone, and an earphone. The method comprises: receiving a voice signal collected by a microphone of an earphone; performing analogue-to-digital conversion processing on the voice signal to obtain a digital voice signal; filtering out a human voice signal in a digital music signal received by the earphone to obtain a background music signal; superposing the background music signal and the digital voice signal to obtain a digital superposed signal; and performing digital-to-analogue conversion processing on the digital superposed signal to obtain a simulated superposed signal, and sending the simulated superposed signal to a receiver of the earphone. In the present invention, a singing voice signal, collected by a microphone, of a singer and a background music signal obtained by eliminating a human voice signal in a music signal are superposed by an earphone, so that a karaoke effect is realised in real time through the earphone, and the user experience is improved.

Description

Method, device and earphone for realizing karaoke function through earphone Technical field

The present invention relates to the field of earphone technology, and more particularly, to a method, device and earphone for implementing a karaoke function through an earphone.

Background technique

With the development and progress of the society, singing karaoke no longer needs to enter the dance hall, KTV room, and K-software realizes the effect of singing karaoke anytime and anywhere. However, the singer karaoke software is to record the singer's voice, and the singer's singing effect can be heard after the singing is finished. The karaoke effect cannot be realized in real time, and the user experience is poor.

Therefore, it is very valuable to propose a processing method for real-time karaoke function through headphones.

Summary of the invention

It is an object of the present invention to provide a new technical solution for realizing a real-time karaoke function through headphones.

According to a first aspect of the present invention, a method for implementing a karaoke function through a headset is provided, including:

Receiving a voice signal collected by a microphone of the earphone;

Performing analog-to-digital conversion processing on the voice signal to obtain a digital voice signal;

Filtering a vocal signal in the digital music signal received by the earphone to obtain a background music signal;

Superimposing the background music signal and the digital voice signal to obtain a digital superposition signal;

And performing digital-to-analog conversion processing on the digital superimposed signal to obtain an analog superimposed signal, and transmitting the analog superimposed signal to an earpiece of the earphone.

Optionally, the method further includes:

Detecting whether the digital voice signal includes a portion whose amplitude exceeds the first set value, and if so, filtering out the vocal signal in the digital music signal received by the earphone to obtain a background music signal; if not, the The digital music signal is subjected to digital-to-analog conversion processing to obtain an analog music signal, and the analog music signal is transmitted to the earpiece of the earphone.

Optionally, the method further includes:

Adding a reverberation signal corresponding to the background music signal to the background music signal;

Adding a reverberation signal corresponding to the digital voice signal to the digital voice signal.

Optionally, the voice signal collected by the microphone of the receiving headset includes:

Receiving a voice signal collected by a microphone mounted on a earphone as a first voice signal;

Receiving a voice signal collected by a microphone installed on another earphone as a second voice signal;

Performing analog-to-digital conversion processing on the voice signal to obtain a digital voice signal, specifically:

Performing analog-to-digital conversion processing on the first voice signal and the second voice signal, respectively, to obtain a corresponding first digital voice signal and a second digital voice signal;

And performing beamforming processing on the first digital voice signal and the second digital voice signal to obtain the digital voice signal.

Optionally, performing beamforming processing on the first digital voice signal and the second digital voice signal, and obtaining the digital voice signal includes:

Performing beamforming processing on the first digital voice signal and the second digital voice signal;

The digital speech signal is obtained by eliminating a portion of the signal obtained by the beamforming process that has an amplitude exceeding a second set value.

According to a second aspect of the present invention, an apparatus for implementing a karaoke function through a headset is provided, including:

a receiving module, configured to receive a voice signal collected by a microphone of the earphone;

An analog-to-digital conversion module, configured to perform analog-to-digital conversion processing on the voice signal to obtain a digital voice signal;

Filtering a vocal signal module for filtering vocals in a digital music signal received by the earphone Signal, get the background music signal;

a superimposing module, configured to superimpose the background music signal and the digital speech signal to obtain a digital superimposed signal;

The first digital-to-analog conversion module is configured to perform digital-to-analog conversion processing on the digital superimposed signal to obtain an analog superimposed signal, and send the analog superimposed signal to an earpiece of the earphone.

Optionally, the device further includes a detection module and a second digital-to-analog conversion module, the detection module is configured to detect whether the digital voice signal includes detecting whether the digital voice signal includes an amplitude exceeding a first setting. a portion of the value, if yes, controlling the filtered vocal signal module to filter out a vocal signal in the digital music signal received by the earphone to obtain a background music signal; if not, controlling the second digital to analog conversion module And performing digital-to-analog conversion processing on the digital music signal to obtain an analog music signal, and transmitting the analog music signal to an earpiece of the earphone.

Optionally, the device further includes:

a first reverberation module, configured to add a reverberation signal corresponding to the background music signal to the background music signal;

And a second plus reverberation module, configured to add a reverberation signal corresponding to the digital voice signal to the digital voice signal.

Optionally, the receiving module includes:

a first receiving unit, configured to receive a voice signal collected by a microphone mounted on a earphone as a first voice signal;

a second receiving unit, configured to receive a voice signal collected by a microphone mounted on another earphone as a second voice signal;

The first digital to analog conversion module includes:

a digital-to-analog conversion unit, configured to perform analog-to-digital conversion processing on the first voice signal and the second voice signal, respectively, to obtain a corresponding first digital voice signal and a second digital voice signal;

And a beam forming unit configured to perform beamforming processing on the first digital voice signal and the second digital voice signal to obtain the digital voice signal.

Optionally, the beam forming unit includes:

a beamforming subunit, configured to perform beamforming processing on the first digital voice signal and the second digital voice signal;

a eliminating subunit, configured to cancel a portion of the signal obtained by the beamforming process and having an amplitude exceeding a second set value, to obtain the digital voice signal

According to a third aspect of the present invention, there is provided an earphone comprising the aforementioned means for realizing a karaoke function through a headphone.

According to a fourth aspect of the present invention, there is provided an earphone comprising a microphone, a processor for collecting a voice signal, and a memory for storing the instruction for storing an instruction The processor operates to perform the aforementioned method of implementing a karaoke function through a headset.

The inventors of the present invention found that in the prior art, there is a problem that the karaoke software cannot realize the karaoke effect in real time. In the present invention, by superimposing the singing voice signal of the singer collected by the microphone and the background music signal of the vocal signal in the music signal through the earphone, the karaoke effect can be realized only by the earphone in real time, thereby improving the user experience. Therefore, the technical task to be achieved by the present invention or the technical problem to be solved is not thought of or expected by those skilled in the art, so the present invention is a new technical solution.

Other features and advantages of the present invention will become apparent from the Detailed Description of the <RTIgt;

DRAWINGS

The accompanying drawings, which are incorporated in FIG

1 is a flow chart of an embodiment of a method of implementing a karaoke function through a headset in accordance with the present invention;

2 is a flow chart of another embodiment of a method for implementing a karaoke function through a headset in accordance with the present invention;

3 is a block schematic diagram of an implementation structure of an apparatus for implementing a karaoke function through an earphone according to the present invention;

Figure 4 is a schematic illustration of an embodiment of an earphone in accordance with the present invention.

Description of the reference signs:

1-headphone handset; 2-headphone cord;

3-control box; 4-headphone plug.

detailed description

Various exemplary embodiments of the present invention will now be described in detail with reference to the drawings. It should be noted that the relative arrangement of the components and steps, numerical expressions and numerical values set forth in the embodiments are not intended to limit the scope of the invention unless otherwise specified.

The following description of the at least one exemplary embodiment is merely illustrative and is in no way

Techniques, methods and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but the techniques, methods and apparatus should be considered as part of the specification, where appropriate.

In all of the examples shown and discussed herein, any specific values are to be construed as illustrative only and not as a limitation. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that similar reference numerals and letters indicate similar items in the following figures, and therefore, once an item is defined in one figure, it is not required to be further discussed in the subsequent figures.

The invention solves the problem that the existing K-song software can not realize the karaoke effect in real time, and provides a new technical solution for realizing the karaoke function through the earphone.

1 is a flow chart of an embodiment of a method of implementing a karaoke function through a headset of the present invention.

According to Figure 1, the method of the invention comprises the following steps:

Step S101, receiving a voice signal collected by a microphone.

Specifically, if the earphone has only one microphone installed on the control box or a earphone, the voice signal collected by the microphone is received for subsequent processing steps.

Step S102, performing analog-to-digital conversion processing on the voice signal to obtain a digital voice signal.

Converting the analog voice signal into a digital voice signal can realize the karaoke function through the DSP processor in the earphone, while the analog signal cannot realize the karaoke function through the processor.

Step S103, filtering out the human voice signal in the digital music signal received by the earphone to obtain a background music signal.

In the digital music signal, the characteristics of the original vocal are roughly divided into two types: the sound image position of the human voice is in the center of the entire sound field (the left and right channels are balancedly distributed); the sound frequency of the human voice is concentrated in the intermediate frequency and the high frequency portion. Therefore, the vocal signal in the digital music signal received by the earphone is filtered out, specifically, the background music signal can be obtained by filtering out the equal sound of the left and right channels in the digital music signal and the frequency is concentrated in the intermediate frequency and the high frequency part. .

It is also possible that the music file played by the electronic device includes two tracks: the original vocal track and the vocal track, and the background music is obtained by switching the audio track by controlling the electronic device connected to the earphone to switch between the original vocal and the accompaniment. signal.

Step S104, superimposing the background music signal and the digital voice signal to obtain a digital superposition signal.

In step S105, the digital superimposed signal is subjected to digital-to-analog conversion processing, and then sent to the earphone.

Since the earphone can only be driven by an analog signal, the digital superimposed signal needs to be digital-to-analog converted to obtain an analog superimposed signal and sent to the earpiece.

In this way, by superimposing the background music signal and the digital voice signal, and then performing digital-to-analog conversion processing, it is sent to the earphone, so that the wearer can both hear the background music and simultaneously hear the sound of the wearer singing. The headset realizes the karaoke effect in real time.

Among them, the opening of the karaoke function can be controlled by a button on the earphone, or the earphone can be automatically turned on. In a specific embodiment of the present invention, the method of the present invention further includes: detecting whether the digital voice signal includes a portion whose amplitude exceeds the first set value, and if so, performing step S103; if not, digitizing the digital music signal The analog conversion process obtains an analog music signal and sends the analog music signal to the earpiece of the earphone.

Since the wearer's mouth is closest to the microphone during the wearing of the earphone, if the wearer sings, the amplitude of the singing signal is the largest, so by detecting whether the digital voice signal contains a portion whose amplitude exceeds the first set value, It is judged whether the wearer is singing, and if so, the karaoke function is turned on, and if not, the music signal received by the earphone is played. In this way, the function of automatically turning on karaoke is realized.

In another embodiment of the present invention, the present invention can also implement a karaoke function through an earphone having two microphones, and FIG. 2 is another embodiment of a method for implementing a karaoke function through a headphone according to the present invention. flow chart.

As shown in FIG. 2, the method includes the following steps:

Step S201, receiving a first voice signal and a second voice signal.

Specifically, receiving a voice signal collected by a microphone mounted on a earphone, as a first voice signal, receiving a voice signal collected by a microphone mounted on another earphone as a second voice signal for separately processing .

At the same time, if the microphones are installed on the two earpieces of the earphone, the earphones can also realize the functions of active noise reduction and call noise reduction through the two microphones, wherein the active noise reduction is to process the inverse of the microphone signal collected by the microphone. Phase microphone signal, and playing the inverted microphone signal through the earphone, thereby achieving the effect of noise reduction; the call noise reduction may specifically eliminate the noise signal in the first voice signal, and send the first voice signal that cancels the noise signal to the earphone Connected electronic devices.

Specifically, when talking, two microphones collect the voice of the person and the surrounding noise. When the ear is normally worn, the mouth is located in the middle of the ears in the vertical direction. In the ideal state, the distance from the first microphone to the mouth is the same. The distance between the two microphones and the mouth is equal, so that the time when the first microphone and the second microphone receive the same sound signal from the human mouth is the same; in general, the distance between the first microphone and the noise source is the same The distance between the two microphones to the noise source is not equal, thus causing a time difference between the time when the two microphones receive the same noise signal from the noise source. In the actual case, the distance from the first microphone to the mouth is not equal to the distance from the second microphone to the mouth. Therefore, it can be considered that the mouth is offset from the vertical direction of the center point of the ears by a certain angle, and the mouth is in the angular range. The time difference between the two microphones receiving the sound signal from the mouth should not exceed the set value ΔT. In this way, the microphone signal received from the first microphone is extracted from the microphone signal received by the second microphone, but the time difference is not greater than the set value ΔT component, as the sound signal emitted by the mouth; The microphone signal received by the microphone extracts a component of the same signal as the microphone signal received by the second microphone but has a received time difference greater than the set value ΔT, and as the noise signal, inverts the noise signal to obtain the noise. The noise reduction signal with the same signal amplitude and opposite phase is superimposed and processed by the noise reduction signal and transmitted to the electronic device connected to the earphone. In this way, the headset can achieve call noise reduction through two microphones.

Earphones with two microphones can also be implemented while enabling karaoke Active noise reduction and call noise reduction.

Step S202, performing analog-to-digital conversion processing on the first speech signal and the second speech signal, respectively, to obtain a first digital speech signal and a second digital speech signal.

Specifically, the first speech signal is subjected to analog-to-digital conversion processing to obtain a first digital speech signal, and the second speech signal is subjected to analog-to-digital conversion processing to obtain a second digital speech signal.

Step S203, performing beamforming processing on the first digital voice signal and the second digital voice signal.

The beamforming process is performed on the first digital voice signal and the second digital voice signal, so that the voice sung by the wearer in the voice signal collected by the microphone can be made clearer, wherein the beamforming process can mainly suppress the first voice signal and the second voice signal. The sound signal in the left and right direction during the wearing of the earphone outputs a sound signal in the front and rear direction, that is, the sound of the wearer singing.

Wherein, beamforming refers to a method of forming spatial directivity by processing (eg, weighting, delay, summation, etc.) of each array element of a multi-array array arranged with a certain geometric shape (straight line, cylinder, arc, etc.). A wide-side microphone array refers to a series of microphones arranged in a direction perpendicular to the direction of the sound waves to be picked. d is the spacing of the two microphone elements in the array. The sound from the wide side of the array is usually the sound to pick up. The wide-edge array can be implemented by basic processing, and the microphones in the array are simply added. The disadvantage of this type of array is that it only attenuates the sound from the sides of the array. The rear response is always consistent with the front response because the array is axisymmetric and cannot distinguish between sound pressure waves arriving from the front and from the rear to the microphone. In a two-microphone wide-edge array, the minimum response occurs at 90° and 270°. The signal attenuation at these points is highly dependent on the frequency. When the half wavelength of the incident frequency approaches the pitch of the microphone, the response approaches cancellation completely. For an array of two microphones with a pitch of 75 mm, theoretically, when the frequency is about 2.3 kHz (343 m/s ÷ (0.075 m x 2) ≈ 2.3 kHz), the response is completely cancelled. Above the ideal attenuated frequency, the frequencies will alias and the polar coordinate response will begin to show zero at other angles. At this point, the side attenuation begins to decrease again.

Specifically, since the omnidirectional microphone is mostly used in the earphone, it is capable of equally responding to sounds from all directions. The two microphones can be configured in an array to form a directional response or beam pattern. Beamformed microphone arrays are designed to be more sensitive to sound from one or more specific directions. Thus, by the beamforming process, the noise signals in the first speech signal and the second speech signal can be filtered out to obtain a clearer singing voice signal.

Step S204, the portion of the signal obtained by the beamforming process whose amplitude exceeds the second set value is removed, and a digital voice signal is obtained.

Wherein, the portion of the signal obtained by removing the beamforming process that exceeds the second set value is a howling, and since the microphone is mounted on the earpiece of the earphone, a harsh whistling may occur, in order to prevent the human ear from hearing howling, resulting in a comparison. A poor user experience can eliminate the portion of the signal resulting from the beamforming process that exceeds the set value.

The conditions for howling are required to satisfy three points: the microphone and the speaker are used at the same time; the sound reproduced by the sound system can be transmitted to the microphone through the space; the sound energy emitted by the speaker is large enough, and the pickup sensitivity of the microphone is sufficiently high.

Eliminating feedback whistling starts with the necessary conditions for generating feedback whistling, as long as one of the conditions can be destroyed, the goal can be achieved. Ways to eliminate feedback whistling include:

a) Adjusting distance method

One of the most effective ways to avoid whistling and increase the volume of the amplified sound is to pick up the microphone as close as possible to the sound source, and the microphone should be non-directional. Specifically, the directional microphone (especially the sharp directional microphone) has a small pickup attenuation of the remote sound source, and the adjustment distance has little effect on increasing the sound volume and preventing whistling. Whether the sound reinforcement system is easy to whistle is not directly related to the sensitivity of the microphone. Only the high-sensitivity microphones are sharply directional, which is prone to whistling. Shortening the distance between the sounding device and the listener can actually increase the loudness of the sound. The total gain of the system can be appropriately reduced. If it is supplemented by a near-field speaker with wide directivity, the microphone can be screamed away from the far point.

For the direct feedback sound field of the speaker, the farther the microphone is from the speaker, the closer the speaker is to the listener. The microphone should be placed on the back of the speaker's radiation direction. If the microphone is likely to be held around, the speaker should be placed where the microphone is not close enough.

b) Frequency equalization method (wideband notch method)

Since the frequency curve of the microphone pickup and sounding equipment is not an ideal flat straight line (especially some poor quality playback equipment), and the acoustic resonance of the auditorium sound field, the frequency response fluctuates greatly. The frequency equalizer can be used to compensate the sound reinforcement curve, and the frequency response of the system is adjusted to an approximate straight line, so that the gains of the respective frequency bands are basically the same, and the sound transmission gain of the system is improved.

Equiliators with 21 or more segments should be used, and parameters should be configured where the requirements are relatively high. When the instrument is more demanding, a feedback suppressor can be used. In fact, when the feedback system is self-excited, its frequency is only a pure tone fixed at a certain point. Therefore, if the frequency is cut off by a narrow-band trap, the system howling can be suppressed.

c) feedback suppressor method (narrowband notch method)

In high-demand occasions, such as some live singing places, the audio feedback automatic suppression device is commonly used. This device can automatically track the feedback point frequency, automatically adjust the Q-value bandwidth, automatically eliminate the sound feedback and maximize the protection. Sound quality. The principle is to suppress howling by notching. For example, Sabine's FBX series feedback suppressor, which is a 9-segment narrow-band automatic compression device controlled by a microcomputer, can better distinguish between feedback self-excited signals and music signals, and can react quickly when the system is self-excited. And set a very narrow digital filter at the feedback frequency, the notch depth is also automatically set, the filtering bandwidth is only 1/3 octave, such a narrow notch band, almost no loudness and The tone has an effect.

d) inverse cancellation method

Inverting cancellation prevents self-excitation in high frequency amplification circuits. In the audio amplifying circuit, two microphones of the same specification can be used to respectively pick up the direct sound and the reflected sound, and the inverted sound circuit cancels the phase of the reflected sound signal before entering the power amplifier, which can effectively prevent the howling self-excitation.

e) Phase modulation

The self-excited howling of the sound reinforcement system, the feedback loop is positive feedback, if the microphone signal is phase-modulated, it will destroy the self-excited phase condition, thus preventing the self-excited howling of the system. It is shown that the stability is best when the phase deviation value is 140°; and the higher the frequency of modulation, the better the stability of the system. In order to prevent the processed sound quality from being too distorted, the maximum allowable value of the phase modulation frequency is 4 Hz.

In this embodiment, the method for removing the howling may also be to eliminate the portion of the signal obtained by the beamforming process whose amplitude exceeds the second set value, so that the generated howling is filtered out and played out without the earphone. This makes the human ear not hear the howling and enhance the user experience.

Step S205, adding a reverberation signal corresponding to the digital voice signal to the digital voice signal.

In order to enable the sound of the singer of the wearer to realize the sound effect of the karaoke, the reverberation signal corresponding to the digital voice signal may be added to the digital voice signal.

Among them, when sound waves are transmitted indoors, they are reflected by obstacles such as walls, ceilings, and floors. Every reflection must be absorbed by the obstacle. In this way, when the sound source stops sounding, the sound wave is reflected and absorbed multiple times in the room, and finally disappears. We feel that there are still several sound waves mixed for a period of time after the sound source stops sounding. This phenomenon is called reverberation.

Taking the reflection three times as an example, the method for obtaining the reverberation signal of the digital speech signal can be:

The digital speech signal is subjected to a first delay processing to generate a first signal; the digital speech signal is subjected to a second delay processing and a frequency domain compression filtering process to generate a second signal; and the digital speech signal is subjected to a third delay processing and frequency The domain compression filtering process generates a third signal; the first sound signal, the second signal, and the third signal are combined into a fourth signal as a reverberation signal.

Among them, the number of delay processing and the number of reflections are the same, and may be more than three times, and may be more.

Adding a reverberation signal corresponding to the digital voice signal to the digital voice signal enables the earphone wearer to experience the stereo sound effect and enhance the user experience.

Step S206, detecting whether the digital speech signal includes a portion whose amplitude exceeds the first set value, and if yes, executing step S207; if not, executing step S211.

This automatically controls the opening of the karaoke function.

Step S207, filtering out the human voice signal in the digital music signal received by the earphone to obtain a background music signal.

Step S208, adding a reverberation signal corresponding to the background music signal to the background music signal.

In order to realize the sound effect of the karaoke, the reverberation corresponding to the background music signal may be added to the background music signal. The specific method is similar to the method of adding the reverberation corresponding to the digital voice signal in the digital voice signal, and details are not described herein again.

In step S209, the background music signal and the digital voice signal are superimposed to obtain a digital superimposed signal.

In step S210, the digital superimposed signal is subjected to digital-to-analog conversion processing, and then sent to the earphone receiver.

In step S211, the digital music signal is subjected to digital-to-analog conversion processing, and then sent to the earphone.

The present invention also provides a K song processing device for an earphone, and FIG. 3 is a block schematic diagram of an implementation structure of the device.

According to FIG. 3, the apparatus 300 includes a receiving module 301, an analog to digital conversion module 302, a filtered vocal signal module 303, a superimposing module 304, and a first digital to analog conversion module 305.

The receiving module 301 is configured to receive a voice signal collected by a microphone of the earphone.

The analog-to-digital conversion module 302 is configured to perform analog-to-digital conversion processing on the voice signal to obtain a digital voice signal.

The ergonomic signal module 303 is configured to filter out a vocal signal in the digital music signal received by the earphone to obtain a background music signal.

The superimposing module 304 is configured to superimpose the background music signal and the digital speech signal to obtain a digital superimposed signal.

The first digital-to-analog conversion module 305 is configured to perform digital-to-analog conversion processing on the digital superimposed signal to obtain an analog superimposed signal, and send the analog superimposed signal to an earpiece of the earphone.

Further, the apparatus 300 further includes a detecting module and a second digital-to-analog conversion module, configured to detect whether the digital voice signal includes detecting whether the digital voice signal includes a portion whose amplitude exceeds the first set value, and if yes, Controlling the ergonomic signal module to filter out the vocal signal in the digital music signal received by the earphone to obtain a background music signal; if not, controlling the second digital-to-analog conversion module to perform digital-to-analog conversion processing on the digital music signal to obtain analog music Signal and send an analog music signal to the handset of the headset.

The receiving module includes a first receiving unit and a second receiving unit, where the first receiving unit is configured to receive a voice signal collected by a microphone mounted on a earphone as a first voice signal; the second receiving unit is configured to: Receiving a voice signal collected by a microphone mounted on another earphone as a second voice signal. The first digital-to-analog conversion module includes a digital-to-analog conversion unit and a beamforming unit, and the digital-to-analog conversion unit is configured to respectively perform analog-to-digital conversion processing on the first voice signal and the second voice signal to obtain a corresponding first digital voice signal and a first And a second digital voice signal; the beam forming unit is configured to perform beamforming processing on the first digital voice signal and the second digital voice signal to obtain a digital voice signal.

Further, the beamforming unit includes a beamforming subunit and a cancellation subunit for performing beamforming processing on the first digital speech signal and the second digital speech signal; the cancellation subunit is configured to eliminate beamforming processing A portion of the obtained signal whose amplitude exceeds the second set value yields a digital speech signal.

Specifically, the apparatus 300 further includes a first reverberation module and a second reverberation module, where the first reverberation module is configured to add a reverberation signal corresponding to the background music signal to the background music signal; The second reverberation module is configured to add a reverberation signal corresponding to the digital speech signal to the digital speech signal.

The present invention also provides an earphone, which in one aspect comprises the aforementioned apparatus 300 for implementing a karaoke function through a headset.

In another aspect, the earphone includes a memory and a processor, wherein the memory is for storing instructions that control the processor to perform the aforementioned method of implementing a karaoke function through the earphone.

The earphone includes an earphone earpiece 1, a headphone cable 2, a control box 3, and a headphone plug 4, as shown in FIG. 4, wherein the earphone is a digital earphone, and the earphone plug 4 is a USB plug. The earphone further includes a microphone for collecting a voice signal, and if the earphone has a microphone, the microphone can be mounted on the control box 3 or on the earphone 1; if the earphone has two microphones, each microphone can be installed differently Headphones on the handset 1.

The processor can be, for example, a DSP digital processor. The memory includes, for example, a ROM (Read Only Memory), a RAM (Random Access Memory), a nonvolatile memory such as a hard disk, and the like.

While the invention has been described in detail with reference to the preferred embodiments of the present invention, it is understood that It will be appreciated by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims (12)

A method for implementing a karaoke function through a headset, comprising: Receiving a voice signal collected by a microphone of the earphone; Performing analog-to-digital conversion processing on the voice signal to obtain a digital voice signal; Filtering a vocal signal in the digital music signal received by the earphone to obtain a background music signal; Superimposing the background music signal and the digital voice signal to obtain a digital superposition signal; And performing digital-to-analog conversion processing on the digital superimposed signal to obtain an analog superimposed signal, and transmitting the analog superimposed signal to an earpiece of the earphone. The method of claim 1 further comprising: Detecting whether the digital voice signal includes a portion whose amplitude exceeds the first set value, and if so, filtering out the vocal signal in the digital music signal received by the earphone to obtain a background music signal; if not, the The digital music signal is subjected to digital-to-analog conversion processing to obtain an analog music signal, and the analog music signal is transmitted to the earpiece of the earphone. The method according to claim 1 or 2, wherein the method further comprises: Adding a reverberation signal corresponding to the background music signal to the background music signal; Adding a reverberation signal corresponding to the digital voice signal to the digital voice signal. The method according to any one of claims 1 to 3, wherein the voice signal collected by the microphone of the receiving earphone comprises: Receiving a voice signal collected by a microphone mounted on a earphone as a first voice signal; Receiving a voice signal collected by a microphone installed on another earphone as a second voice signal; Performing analog-to-digital conversion processing on the voice signal to obtain a digital voice signal, specifically: Performing analog-to-digital conversion processing on the first voice signal and the second voice signal, respectively, to obtain a corresponding first digital voice signal and a second digital voice signal; And performing beamforming processing on the first digital voice signal and the second digital voice signal to obtain the digital voice signal. The method according to claim 4, wherein said performing beamforming processing on said first digital voice signal and said second digital voice signal, said obtaining said digital voice signal comprises: Performing beamforming processing on the first digital voice signal and the second digital voice signal; The digital speech signal is obtained by eliminating a portion of the signal obtained by the beamforming process that has an amplitude exceeding a second set value. An apparatus for implementing a karaoke function through a headset, comprising: a receiving module, configured to receive a voice signal collected by a microphone of the earphone; An analog-to-digital conversion module, configured to perform analog-to-digital conversion processing on the voice signal to obtain a digital voice signal; Filtering the vocal signal module for filtering the vocal signal in the digital music signal received by the earphone to obtain a background music signal; a superimposing module, configured to superimpose the background music signal and the digital speech signal to obtain a digital superimposed signal; The first digital-to-analog conversion module is configured to perform digital-to-analog conversion processing on the digital superimposed signal to obtain an analog superimposed signal, and send the analog superimposed signal to an earpiece of the earphone. The device according to claim 6, wherein the device further comprises a detecting module and a second digital to analog conversion module, wherein the detecting module is configured to detect whether the digital voice signal includes detecting the digital voice signal Whether a portion having an amplitude exceeding a first set value is included, and if so, controlling the filtered vocal signal module to filter out a vocal signal in the digital music signal received by the earphone to obtain a background music signal; if not, controlling The second digital-to-analog conversion module performs digital-to-analog conversion processing on the digital music signal to obtain an analog music signal, and transmits the analog music signal to an earpiece of the earphone. The device according to claim 6 or 7, wherein the device further comprises: a first reverberation module, configured to add a reverberation signal corresponding to the background music signal to the background music signal; a second plus reverberation module, configured to add the digital voice signal to the digital voice signal Corresponding reverb signal. The apparatus according to any one of claims 6-8, wherein the receiving module comprises: a first receiving unit, configured to receive a voice signal collected by a microphone mounted on a earphone as a first voice signal; a second receiving unit, configured to receive a voice signal collected by a microphone mounted on another earphone as a second voice signal; The first digital to analog conversion module includes: a digital-to-analog conversion unit, configured to perform analog-to-digital conversion processing on the first voice signal and the second voice signal, respectively, to obtain a corresponding first digital voice signal and a second digital voice signal; And a beam forming unit configured to perform beamforming processing on the first digital voice signal and the second digital voice signal to obtain the digital voice signal. The apparatus according to claim 9, wherein the beam forming unit comprises: a beamforming subunit, configured to perform beamforming processing on the first digital voice signal and the second digital voice signal; a eliminating subunit, configured to cancel a portion of the signal obtained by the beamforming process and having an amplitude exceeding a second set value, to obtain the digital voice signal An earphone characterized by comprising the apparatus of any one of claims 6-10. An earphone characterized by a microphone, a processor and a memory, the microphone for collecting a voice signal, the memory being for the memory for storing an instruction, the instruction for controlling the processor to operate Performing a method according to any one of claims 1-5.

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