Voice call method, system, wearable device and battery compartment

Abstract

The application discloses a voice communication method, system, wearable device and battery compartment. The voice communication method is applied to a relay device, the relay device is used for being in communication connection with two earphones which are paired, at least two sound collection units are arranged on the earphones, and the voice communication method comprises the following steps: acquiring original voice signals collected by the two earphones which are paired respectively; performing voice noise reduction on the original voice signals to obtain uplink voice signals; and the uplink voice signals are used for being transmitted to a preset terminal which is connected with the relay device. In this way, the relay device is used for performing processing on the sound collected by the earphones, the problem that noise reduction processing is limited by earphone chip standards in the prior art is avoided, the signals collected by the two earphones are acquired by the relay device, and the signals are processed, the sound collection capability and the signal processing capability of a single earphone are not limited, and the obtained uplink voice signals are clearer.

Description

Technical Field

[0001] This application relates to the field of communication-related technologies, specifically to a voice call method, system, wearable device, and battery compartment. Background Technology

[0002] In recent years, with the continuous development of headphone technology, the use of headphones has become increasingly widespread. During the use of headphones, the microphone on the headphones not only captures the user's voice but also various environmental noise sources. To avoid the influence of noise on the user's voice, it is usually necessary to perform environmental noise reduction on the sound signal captured by the headphones to obtain noise-reduced speech.

[0003] Existing headphone noise reduction processing is limited by the headphone chip standard. It uses the dual-channel or multi-channel sound signal of one single headphone at the same time to perform environmental noise reduction and obtain noise-reduced speech, but the noise-reduced speech is not very clear. Summary of the Invention

[0004] In view of this, embodiments of this application aim to provide a voice call method, system, wearable device, and battery compartment to at least alleviate the problem of unclear voice to some extent.

[0005] According to a first aspect of the embodiments of this application, a voice call method is provided, applied to a relay device, the relay device being used for communication connection with two paired earphones; the earphones are provided with at least two sound acquisition units; the voice call method includes:

[0006] Acquire the raw voice signals collected by each of the two paired earphones;

[0007] The original speech signal is subjected to speech noise reduction to obtain the uplink speech signal;

[0008] The uplink voice signal is used to transmit to a preset terminal connected to the relay device.

[0009] In one embodiment, the raw voice signal includes: a left ear raw signal set acquired by the left earphone of the two paired earphones and a right ear raw signal set acquired by the right earphone;

[0010] The process of performing speech noise reduction on the original speech signal to obtain the uplink speech signal includes:

[0011] The left-channel speech signal is obtained by eliminating environmental noise within the range on the left side of the user's head based on the original signal group of the left ear, and the right-channel speech signal is obtained by eliminating environmental noise within the range on the right side of the user's head based on the original signal group of the right ear.

[0012] Based on the left-channel voice signal and the right-channel voice signal, the uplink voice signal is obtained.

[0013] In one embodiment, the relay device includes a sound acquisition unit;

[0014] The method further includes: acquiring noise signals based on the sound acquisition unit of the relay device;

[0015] The relative position of the relay device and the user's body is monitored; the relative position of the relay device and the user's body includes the body-mounted position of the relay device on the user's body or the body-detached position; the relative position of the relay device and the user's body is used to characterize the difference in environmental noise between the relay device and the left and right sides of the user's head, as well as the sensitivity of picking up human voices.

[0016] In one embodiment, obtaining the left-channel speech signal by eliminating environmental noise within the range to the left of the user's head based on the original left ear signal group includes:

[0017] Based on the sound signals collected by different sound acquisition units on the left earphone in the original signal group of the left ear, the environmental noise in the range on the left side of the user's head is initially reduced to obtain the left-side initial noise-reduced sound signal.

[0018] Based on the noise signal and the relative position of the relay device and the user's body, the environmental noise in the initial noise reduction signal of the left channel is subjected to secondary noise reduction to obtain the left channel voice signal.

[0019] The process of obtaining the right-channel speech signal by eliminating environmental noise within the right side of the user's head based on the original right ear signal group includes:

[0020] Based on the sound signals collected by different sound acquisition units on the right earphone in the original signal group of the right ear, the environmental noise in the area to the right of the user's head is initially reduced to obtain the right-side initial noise-reduced sound signal.

[0021] Based on the noise signal and the relative position of the relay device and the user's body, the environmental noise in the initial noise reduction signal of the right channel is subjected to secondary noise reduction to obtain the right channel voice signal.

[0022] According to a second aspect of the embodiments of this application, a voice call system is provided, comprising:

[0023] The repeater and two earpieces;

[0024] The earphone is equipped with at least two sound acquisition units, which are used to acquire raw speech signals.

[0025] The relay device is communicatively connected to the two earpieces respectively, and is used to execute the voice call method described in the above embodiments.

[0026] In one embodiment, the relay device includes a sound acquisition unit;

[0027] The relay device is also used to perform the voice call method as described in the above embodiments.

[0028] According to a third aspect of the embodiments of this application, a wearable device is provided, comprising:

[0029] A processor, a memory, and a wireless communication unit respectively connected to the processor;

[0030] The wireless communication unit is used to establish communication connections with the two paired earphones respectively, and to establish communication connections with a preset terminal.

[0031] The memory includes computer instructions stored thereon, which, when executed by the processor, cause the processor to perform the voice call method as described in the above embodiments.

[0032] In one embodiment, the wearable device further includes a sound acquisition unit connected to the processor;

[0033] The processor is also used to execute the voice call method as described in the above embodiments.

[0034] According to a fourth aspect of the embodiments of this application, a battery compartment is provided, including: a battery compartment body for storing two earphones and charging the two earphones; the battery compartment further includes: a processor, a memory, and a wireless communication unit;

[0035] The processor is connected to the memory and the wireless communication unit, respectively;

[0036] The wireless communication unit is used to establish communication connections with the two earphones worn by the user, and to establish communication connections with a preset terminal.

[0037] The memory includes computer instructions stored thereon, which, when executed by the processor, cause the processor to perform the voice call method as described in the above embodiments.

[0038] In one embodiment, it further includes a sound acquisition unit connected to the processor;

[0039] The processor is also used to execute the voice call method as described in the above embodiments.

[0040] The solution provided in this application uses a relay device to process the sound collected by the earphones, avoiding the limitation of noise reduction processing in existing technologies that is restricted by the earphone chip standard. The relay device can communicate with each of the two paired earphones separately, acquiring the original voice signals collected by each earphone. Based on the original voice signals collected by both earphones, noise reduction is performed to obtain the uplink voice signal, which is then sent to a preset terminal to complete the voice call. Compared to the solutions provided in the background art, the solution provided in this embodiment avoids the limitation that the earphone chip can only process the original voice signal collected by its own earphone, and also avoids the limitation of the earphone chip's signal processing capability on the processing of the original voice signal. By acquiring and processing the signals collected by both earphones through a relay device, it is not limited by the sound acquisition and signal processing capabilities of a single earphone, resulting in a clearer uplink voice signal. Attached Figure Description

[0041] The above and other objects, features, and advantages of this application will become more apparent from the more detailed description of the embodiments of this application in conjunction with the accompanying drawings. The drawings are provided to further illustrate the embodiments of this application and form part of the specification. They are used together with the embodiments of this application to explain this application and do not constitute a limitation thereof. In the drawings, the same reference numerals generally represent the same components or steps.

[0042] Figure 1 The diagram shown is a flowchart of a voice call method provided in one embodiment of this application.

[0043] Figure 2 The diagram shown is a flowchart of a voice call method provided in another embodiment of this application.

[0044] Figure 3 The diagram shown is a structural schematic of a voice call system provided in one embodiment of this application.

[0045] Figure 4 The diagram shown is a structural schematic of a relay device provided in one embodiment of this application.

[0046] Figure 5 The diagram shown is a structural schematic of a wearable device provided in one embodiment of this application.

[0047] Figure 6 The diagram shown is a structural schematic of a battery compartment provided in one embodiment of this application. Detailed Implementation

[0048] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0049] Application Overview

[0050] Wireless earbuds use an internal chip to process the user's voice before sending it to mobile devices such as smartphones to complete uplink calls. Specifically, when the user speaks, the microphone on the earbuds picks up not only the user's voice signal but also noise signals from various environmental sources. The internal chip then performs environmental noise reduction on the collected voice.

[0051] However, the inventors discovered that, limited by the standards of earphone chips, existing wireless earphones can only utilize the dual-channel or multi-channel signals from a single earphone for environmental noise reduction at any given time. In other words, existing wireless earphones can only use the sound information collected by one earphone to perform environmental noise reduction based on the chip within that earphone. In this approach, the noise reduction process is limited by the computing power of the chip within a single earphone, resulting in less than ideal noise reduction performance. Furthermore, since the sound used for noise reduction is collected by a single earphone, if that earphone malfunctions, causing the collected sound signal to be unclear, the final voice signal will also be unclear.

[0052] To address the aforementioned issues, this embodiment uses an external product as a relay device to acquire sound information from both earphones. Then, based on this sound information, environmental noise reduction and other operations are performed. This setup, using a relay device for processing, avoids the limitation of earphone chips being able to process only the raw audio signal acquired by their own earphone. It also avoids the limitations of earphone chip signal processing capabilities on raw audio signal processing. By acquiring and processing raw audio signals from both earphones through a relay device, it is not limited by the sound acquisition and signal processing capabilities of a single earphone, resulting in a clearer uplink audio signal.

[0053] After introducing the basic principles of this application, various non-limiting embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0054] Exemplary methods

[0055] Figure 1The diagram shown is a flowchart illustrating a voice call method according to an embodiment of this application. This voice call method is applied to a relay device. The relay device is used to establish a communication connection with two paired earpieces; each earpiece is equipped with at least two sound acquisition units. Figure 1 The voice call method shown includes:

[0056] S110: Acquire the raw voice signals collected by each of the two paired earphones;

[0057] In one embodiment, the two paired earphones can be two wireless earphones, which can communicate with the relay device based on a preset wireless communication module. Specifically, the wireless communication module can be, but is not limited to, a Bluetooth module.

[0058] Furthermore, the sound acquisition unit on the headphones can be, but is not limited to, a microphone or a microphone array. The number of sound acquisition units on a single headphone is at least two. The microphones on the same headphone should be positioned as far apart as possible. The raw speech signals acquired by the two headphones include: the raw signal group from the left ear acquired by the left earphone and the raw signal group from the right ear acquired by the right earphone.

[0059] The relay device includes a wireless communication module. The wireless communication module of the relay device is paired with the wireless communication module of the earphones; the relay device can wirelessly connect with both paired earphones. After the earphones collect the raw voice signal, they send the raw voice signal to the relay device. The relay device receives the raw voice signal. With this configuration, the relay device can obtain the raw sound information collected by both earphones, resulting in a more comprehensive acquisition of the raw voice signal compared to the solutions mentioned in the background art.

[0060] S120: Perform speech noise reduction on the original speech signal to obtain an uplink speech signal;

[0061] It should be noted that there are multiple methods for performing speech noise reduction on the original speech signal to obtain the uplink speech signal. These will not be listed here, but only one specific method will be described. For example, the speech noise reduction process based on a single earphone mentioned in the background art can be applied to the embodiments of this application. Specifically, firstly, environmental noise within the range to the left of the user's head is eliminated based on the original signal group from the left ear to obtain the left-channel speech signal, and environmental noise within the range to the right of the user's head is eliminated based on the original signal group from the right ear to obtain the right-channel speech signal; then, the uplink speech signal is obtained based on the left-channel speech signal and the right-channel speech signal.

[0062] Specifically, the uplink voice signal is used to transmit to a preset terminal connected to the relay device. In some embodiments, the relay device and the preset terminal establish a communication connection. The preset terminal may be, but is not limited to, devices such as mobile phones, tablets, laptops, and smart speakers. The relay device and the preset terminal may be connected wirelessly. After receiving the uplink voice signal, the relay device sends the uplink voice signal to the preset terminal to complete the call.

[0063] Thus, by using a relay device to process the raw audio signal collected by the earphones, the problem of noise reduction processing being limited by the earphone chip standard in existing technologies is avoided. The relay device can communicate with each of the paired earphones separately, acquiring the raw signal groups from the left and right ears of each earphone respectively. Based on the raw audio signals from both earphones, noise reduction is performed to obtain the uplink audio signal, which is then sent to a preset terminal to complete the voice call. Compared to the solutions provided in the background art, the solution provided by this embodiment avoids the limitation that the earphone chip can only process the raw audio signal collected by its own earphone, and also avoids the limitation of the earphone chip's signal processing capabilities on the raw audio signal processing. By acquiring and processing the raw audio signals collected by both earphones through a relay device, it is not limited by the sound acquisition and signal processing capabilities of a single earphone, resulting in a clearer uplink audio signal.

[0064] In some embodiments, the relay device includes a sound acquisition unit. Correspondingly, see reference... Figure 2 Voice call methods include:

[0065] S210. Acquire the raw voice signals collected by each of the two paired earphones;

[0066] S220. The sound acquisition unit of the relay device acquires noise signals;

[0067] The relay device can be a wearable device or a battery compartment. Wearable devices can be, but are not limited to, smart bracelets and smartwatches. In this embodiment, the requirements for the relay device include wireless communication functionality, data processing functionality, and sound acquisition functionality. Generally, wearable devices have wireless communication and data processing capabilities. For some wearable devices that do not meet the requirements for a relay device, certain modifications can be made by adding corresponding structures to make those wearable devices meet the requirements for a relay device in this embodiment. Similarly, the battery compartment can also be modified to a certain extent by adding corresponding structures to make the battery compartment meet the requirements for a relay device in this embodiment.

[0068] S230. Monitor the relative position of the relay device and the user's body; the relative position of the relay device and the user's body includes the body-mounted position of the relay device on the user's body or the body-detached position of the relay device; the relative position of the relay device and the user's body is used to characterize the difference in environmental noise between the relay device and the left and right sides of the user's head, as well as the sensitivity of picking up human voices.

[0069] Furthermore, the specific implementation of "monitoring the relative position between the relay device and the user's body" can be based on preset sensors. For example, when the relay device is a smartwatch, the user's posture can be determined based on the sensors inside the smartwatch, thereby determining the relative position between the smartwatch and the user's body. Furthermore, in some special scenarios, the relative position between the relay device and the user's body is relatively fixed. In this case, the relative position can be pre-input or preset. For example, in some fixed meeting venues, a charging case can be set up as a relay device. During use, the charging case can be placed in a fixed position, and the position of the person using the headset is also relatively fixed, so the relative position can be pre-input or preset.

[0070] It should be noted that the main purpose of steps S210, S220, and S230 is to collect signals and positional relationships used in subsequent calculations. There is no explicit temporal relationship between these three steps. In terms of time, it is only necessary to ensure that the signals and positional relationships collected in these three steps have completed their corresponding acquisition processes by the time they are used.

[0071] S240. Based on the sound signals collected by different sound acquisition units on the left earphone in the original signal group of the left ear, the environmental noise in the range on the left side of the user's head is initially reduced to obtain the left-side initial noise-reduced sound signal.

[0072] S250. Based on the noise signal and the relative position of the relay device and the user's body, perform secondary noise reduction on the environmental noise in the initial noise reduction signal of the left channel to obtain the left channel voice signal.

[0073] S260. Based on the sound signals collected by different sound acquisition units on the right earphone in the original signal group of the right ear, the environmental noise in the area to the right of the user's head is initially reduced to obtain the right-side initial noise-reduced sound signal.

[0074] S270. Based on the noise signal and the relative position of the relay device and the user's body, the environmental noise in the right-channel initial noise reduction signal is subjected to secondary noise reduction to obtain the right-channel voice signal.

[0075] It should be noted that in the solution provided in this application embodiment, there is a clear temporal relationship between steps S240 and S250, with step S250 executed after step S240. Similarly, there is a clear temporal relationship between steps S260 and S270, with step S270 executed after step S260. However, there is no clear temporal order between steps S240 and S260, S240 and S270, S250 and S260, or S250 and S270.

[0076] Through the above method, secondary noise reduction is performed during the processing of the original speech signal, resulting in better noise reduction effect. Specifically, the original speech signals from the left and right ears are subjected to initial noise reduction respectively. The initial noise reduction process for the left ear original speech signal is as follows: based on the sound signals collected by different sound acquisition units on the left earphone in the original left ear signal group, the environmental noise in the range to the left of the user's head is initially reduced to obtain the left-channel initial noise-reduced sound signal. The initial noise reduction process for the right ear original speech signal is as follows: based on the sound signals collected by different sound acquisition units on the right earphone in the original right ear signal group, the environmental noise in the range to the right of the user's head is initially reduced to obtain the right-channel initial noise-reduced sound signal. The initial noise reduction method can be the single-ear noise reduction method of existing wireless headphones, or other methods that can be used for speech noise reduction.

[0077] After initial noise reduction, secondary noise reduction is performed on the left and right audio signals obtained from the initial noise reduction. The process for secondary noise reduction of the left audio signal is as follows: Based on the noise signal and the relative position of the relay device and the user's body, the environmental noise in the initial noise-reduced left audio signal is subjected to secondary noise reduction to obtain the left audio signal. For example, firstly, the influence of environmental noise on the left audio signal can be calculated based on the noise signal and the relative position of the relay device and the user's body, and then this influence can be eliminated to perform secondary noise reduction. The process for secondary noise reduction of the right audio signal is as follows: Based on the noise signal and the relative position of the relay device and the user's body, the environmental noise in the initial noise-reduced right audio signal is subjected to secondary noise reduction to obtain the right audio signal. For example, firstly, the influence of environmental noise on the right audio signal can be calculated based on the noise signal and the relative position of the relay device and the user's body, and then this influence can be eliminated to perform secondary noise reduction.

[0078] In principle, this application embodiment ensures that the difference in environmental noise between the relay device and the left and right sides of the user's head is as small as possible, so as to simplify the algorithm complexity of secondary noise reduction in steps S250 and S270 as much as possible; and ensures that the sensitivity of the sound acquisition unit of the relay device in picking up human voices is much lower than that of the left and right earphones when wearing them, so as to suppress the unwanted user voice components in the secondary noise reduction process of steps S250 and S270 to the slightest level.

[0079] The above method yields a left-channel speech signal and a right-channel speech signal that have undergone two rounds of noise reduction. The signal with two rounds of noise reduction (i.e., initial noise reduction and secondary noise reduction) more closely resembles a clean speech signal.

[0080] S280. Based on the left-channel voice signal and the right-channel voice signal, an uplink voice signal is obtained; wherein, the uplink voice signal is used to transmit to a preset terminal connected to the relay device.

[0081] With this setup, the uplink audio signal is obtained based on the left and right audio signals, which have undergone two rounds of noise reduction. Since the left and right audio signals are closer to the pure audio signal, the resulting uplink audio signal is also clearer.

[0082] Exemplary System

[0083] Figure 3 The diagram shown is a structural schematic of a voice call system provided in one embodiment of this application. (Refer to...) Figure 3 The voice call system provided in this application includes: a relay device 2 and two earpieces 1; each earpiece 1 is equipped with at least two sound acquisition units, which are used to acquire raw voice signals; the relay device 2 is communicatively connected to each of the two earpieces 1, and is used to execute the voice call method provided in this application. Specifically, the voice call method includes: acquiring the raw voice signals acquired by each of the two paired earpieces 1; performing voice noise reduction on the raw voice signals to obtain an uplink voice signal; wherein the uplink voice signal is used to transmit to a preset terminal connected to the relay device 2.

[0084] Optionally, the original speech signal includes: a left ear original signal group collected by the left earphone and a right ear original signal group collected by the right earphone of the two paired earphones 1; the speech noise reduction of the original speech signal to obtain the uplink speech signal includes: eliminating environmental noise in the range to the left of the user's head based on the left ear original signal group to obtain a left-channel speech signal, and eliminating environmental noise in the range to the right of the user's head based on the right ear original signal group to obtain a right-channel speech signal; the uplink speech signal is obtained based on the left-channel speech signal and the right-channel speech signal.

[0085] The specific application scenario is as follows: The user wears wireless earphones and carries a wearable device and a battery case; during the user's voice call, the earphones collect the raw voice signal in real time; based on the signal composition, the raw voice signal includes the user's voice signal and surrounding environmental noise; depending on the earphone used for collection, the raw voice signal includes: the left ear raw signal group collected by the left earphone of the two paired earphones and the right ear raw signal group collected by the right earphone; after collecting the raw voice signal, the earphones send the raw voice signal to a relay device; the chip inside the relay device eliminates environmental noise within the range to the left of the user's head based on the left ear raw signal group to obtain the left-channel voice signal, and eliminates environmental noise within the range to the right of the user's head based on the right ear raw signal group to obtain the right-channel voice signal; based on the left-channel voice signal and the right-channel voice signal, an uplink voice signal is obtained, and then the uplink voice signal is sent to a preset terminal to complete the voice call process.

[0086] Specifically, in practice, the relay device can be, but is not limited to, a wearable device and a battery compartment; among which, the wearable device can be, but is not limited to, a smartwatch or a smart bracelet. With this configuration, the relay device is more convenient for users to carry or wear.

[0087] In one embodiment, reference is made to Figure 4 The relay device includes a sound acquisition unit. Specifically, the sound acquisition unit may be, but is not limited to, a microphone or a microphone array; in this configuration, the relay device can acquire noise signals.

[0088] Correspondingly, the voice call method executed by the relay device also includes: acquiring noise signals based on the sound acquisition unit of the relay device; monitoring the relative position of the relay device and the user's body; the relative position of the relay device and the user's body includes the body-mounted position of the relay device on the user's body or the body-detached position of the relay device; the relative position of the relay device and the user's body is used to characterize the difference in environmental noise between the relay device and the left and right sides of the user's head, as well as the sensitivity of picking up human voices.

[0089] Furthermore, the step of eliminating environmental noise within the range to the left of the user's head based on the original signal group of the left ear to obtain the left-channel speech signal includes: performing initial noise reduction on the environmental noise within the range to the left of the user's head based on the sound signals collected by different sound acquisition units on the left earphone in the original signal group of the left ear to obtain the left-channel initial noise-reduced sound signal; and performing secondary noise reduction on the environmental noise in the left-channel initial noise-reduced sound signal based on the noise signal and the relative position of the relay device and the user's body to obtain the left-channel speech signal. The step of eliminating environmental noise within the range to the right of the user's head based on the original signal group of the right ear to obtain the right-channel speech signal includes: performing initial noise reduction on the environmental noise within the range to the right of the user's head based on the sound signals collected by different sound acquisition units on the right earphone in the original signal group of the right ear to obtain the right-channel initial noise-reduced sound signal; and performing secondary noise reduction on the environmental noise in the right-channel initial noise-reduced sound signal based on the noise signal and the relative position of the relay device and the user's body to obtain the right-channel speech signal.

[0090] For example, the relay device is a wearable device. The user wears the wearable device. After the user wears headphones, the headphones collect the original voice signal, and the wearable device collects the noise signal. The relative position of the wearable device and the user's body is monitored, including either a position where the wearable device is attached to the user's body or a position where it is detached from the user's body. This relative position characterizes the difference in environmental noise between the wearable device and the area to the left and right of the user's head, as well as the sensitivity of voice pickup. The wearable device then performs noise reduction on the original voice signal to obtain an uplink voice signal. This uplink voice signal is then sent to a preset terminal.

[0091] In certain special scenarios, such as a conference room, the positions of the personnel are fixed, and the position of the repeater can also be relatively fixed. Specifically, when the repeater is a charging case, the user can place the charging case in a fixed position. With this setup, the positions of the charging case and the earphones on the user's body are relatively fixed, making it relatively easy to monitor the relative position of the repeater and the user's body. The goal of monitoring the relative position of the repeater and the user's body can be achieved by pre-inputting the relative position.

[0092] Exemplary wearable device

[0093] Figure 5 The diagram shown is a structural schematic of a wearable device according to an embodiment of this application. (Refer to...) Figure 5The wearable device 3 provided in this application includes: a processor 32, a memory 33 and a wireless communication unit 31 respectively connected to the processor; the wireless communication unit 31 is used to establish communication connections with two paired earphones respectively, and to establish communication connections with a preset terminal; the memory includes computer instructions stored thereon, which, when executed by the processor, cause the processor to perform the following voice call method. The voice call method includes: acquiring the original voice signals collected by each of the two paired earphones; performing voice noise reduction on the original voice signals to obtain an uplink voice signal; wherein the uplink voice signal is used to transmit to a preset terminal connected to the wearable device.

[0094] Optionally, the original speech signal includes: a left ear original signal group collected by the left earphone and a right ear original signal group collected by the right earphone of the two paired earphones; the speech noise reduction of the original speech signal to obtain the uplink speech signal includes: eliminating environmental noise in the range to the left of the user's head based on the left ear original signal group to obtain a left-channel speech signal, and eliminating environmental noise in the range to the right of the user's head based on the right ear original signal group to obtain a right-channel speech signal; the uplink speech signal is obtained based on the left-channel speech signal and the right-channel speech signal.

[0095] Furthermore, the wearable device also includes: a sound acquisition unit 34 connected to the processor 32; correspondingly, the processor 32 is also used to acquire the noise signal acquired by the sound acquisition unit of the wearable device 3; monitor the relative position of the wearable device 3 and the user's body, including: the position of the wearable device 3 on the user's body or the position of the wearable device 3 detached from the user's body; the relative position of the wearable device 3 and the user's body is used to characterize the difference in environmental noise between the wearable device 3 and the left and right sides of the user's head and the sensitivity of picking up human voices.

[0096] The process of obtaining a left-channel speech signal by eliminating environmental noise within the range to the left of the user's head based on the original signal group of the left ear includes: performing initial noise reduction on the environmental noise within the range to the left of the user's head based on the sound signals collected by different sound acquisition units on the left earphone in the original signal group of the left ear, to obtain a left-channel initial noise-reduced sound signal; and performing secondary noise reduction on the environmental noise in the left-channel initial noise-reduced sound signal based on the noise signal and the relative position of the wearable device and the user's body, to obtain a left-channel speech signal. The process of obtaining a right-channel speech signal by eliminating environmental noise within the range to the right of the user's head based on the original signal group of the right ear includes: performing initial noise reduction on the environmental noise within the range to the right of the user's head based on the sound signals collected by different sound acquisition units on the right earphone in the original signal group of the right ear, to obtain a right-channel initial noise-reduced sound signal; and performing secondary noise reduction on the environmental noise in the right-channel initial noise-reduced sound signal based on the noise signal and the relative position of the wearable device and the user's body, to obtain a right-channel speech signal.

[0097] Exemplary charging case

[0098] Figure 6 The diagram shown is a structural schematic of a battery compartment according to an embodiment of this application. (Refer to...) Figure 6 The battery compartment provided in this application includes: a battery compartment body for storing and charging two earphones, a processor 42, a memory 43, and a wireless communication unit 41; the processor 42 is connected to the memory 43 and the wireless communication unit 41 respectively; the wireless communication unit 41 is used to communicate with the two earphones worn by the user and to communicate with a preset terminal; the memory includes computer instructions stored thereon, which, when executed by the processor, cause the processor to perform the following voice call method, which includes: acquiring the original voice signals collected by each of the paired earphones; performing voice noise reduction on the original voice signals to obtain an uplink voice signal; wherein the uplink voice signal is used to transmit to a preset terminal connected to the battery compartment.

[0099] Optionally, the original speech signal includes: a left ear original signal group collected by the left earphone and a right ear original signal group collected by the right earphone of the two paired earphones; the speech noise reduction of the original speech signal to obtain the uplink speech signal includes: eliminating environmental noise in the range to the left of the user's head based on the left ear original signal group to obtain a left-channel speech signal, and eliminating environmental noise in the range to the right of the user's head based on the right ear original signal group to obtain a right-channel speech signal; the uplink speech signal is obtained based on the left-channel speech signal and the right-channel speech signal.

[0100] In one embodiment, the battery compartment further includes a sound acquisition unit 44 connected to the processor 42; correspondingly, the processor 42 is also used to acquire noise signals acquired by the sound acquisition unit of the battery compartment; monitor the relative position of the battery compartment and the user's body, including: the position of the battery compartment on the user's body or the position of the battery compartment detached from the user's body; the relative position of the battery compartment and the user's body is used to characterize the difference in environmental noise between the battery compartment and the left and right sides of the user's head and the sensitivity of picking up human voices.

[0101] The process of obtaining a left-channel speech signal by eliminating environmental noise within the range to the left of the user's head based on the original signal group of the left ear includes: performing initial noise reduction on the environmental noise within the range to the left of the user's head based on the sound signals collected by different sound acquisition units on the left earphone in the original signal group of the left ear, to obtain a left-channel initial noise-reduced sound signal; and performing secondary noise reduction on the environmental noise in the left-channel initial noise-reduced sound signal based on the noise signal and the relative position of the battery compartment and the user's body, to obtain a left-channel speech signal. The process of obtaining a right-channel speech signal by eliminating environmental noise within the range to the right of the user's head based on the original signal group of the right ear includes: performing initial noise reduction on the environmental noise within the range to the right of the user's head based on the sound signals collected by different sound acquisition units on the right earphone in the original signal group of the right ear, to obtain a right-channel initial noise-reduced sound signal; and performing secondary noise reduction on the environmental noise in the right-channel initial noise-reduced sound signal based on the noise signal and the relative position of the battery compartment and the user's body, to obtain a right-channel speech signal.

[0102] Exemplary computer program products and computer-readable storage media

[0103] In addition to the methods and devices described above, embodiments of this application may also be computer program products, which include computer program instructions that, when executed by a processor, cause the processor to perform the steps in the voice call methods according to various embodiments of this application as described in the "Exemplary Methods" section of this specification.

[0104] The computer program product can be written in any combination of one or more programming languages ​​to perform the operations of the embodiments of this application. The programming languages ​​include object-oriented programming languages ​​such as Java and C++, as well as conventional procedural programming languages ​​such as C or similar languages. The program code can be executed entirely on the user's computing device, partially on the user's computing device, as a standalone software package, partially on the user's computing device and partially on a remote computing device, or entirely on a remote computing device or server.

[0105] Furthermore, embodiments of this application may also be computer-readable storage media storing computer program instructions thereon, which, when executed by a processor, cause the processor to perform the steps in the voice call methods according to various embodiments of this application described in the "Exemplary Methods" section above.

[0106] The computer-readable storage medium may be any combination of one or more readable media. A readable medium may be a readable signal medium or a readable storage medium. A readable storage medium may, for example, include, but is not limited to, electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatuses, or devices, or any combination thereof. More specific examples of readable storage media (a non-exhaustive list) include: electrical connections having one or more wires, portable disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof.

[0107] The above description has been given for purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of this application to the forms disclosed herein. Although numerous exemplary aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations thereof.

Claims

1. A voice call method, characterized in that, This is applied to a relay device used for communication with two paired earphones; the earphones are equipped with at least two sound acquisition units. The voice call method includes: Acquire the original voice signals collected by each of the two paired earphones, wherein the original voice signals include: the original signal group of the left ear collected by the left earphone and the original signal group of the right ear collected by the right earphone. The original speech signal is subjected to speech noise reduction to obtain the uplink speech signal; The uplink voice signal is used to transmit to a preset terminal connected to the relay device; The voice call method also includes: The sound acquisition unit of the relay device acquires noise signals; The relative position of the relay device and the user's body is monitored; the relative position of the relay device and the user's body includes the body-mounted position of the relay device on the user's body or the body-detached position of the relay device; the relative position of the relay device and the user's body is used to characterize the difference in environmental noise between the relay device and the left and right sides of the user's head and the sensitivity of picking up human voices, and the human voice picking up sensitivity of the sound acquisition unit of the relay device is much lower than that of the left and right earphones when worn; Based on the sound signals collected by different sound acquisition units on the left earphone in the original signal group of the left ear, the environmental noise in the range on the left side of the user's head is initially reduced to obtain the left-side initial noise-reduced sound signal. Based on the noise signal and the relative position of the relay device and the user's body, the environmental noise in the initial noise reduction signal of the left channel is subjected to secondary noise reduction to obtain the left channel voice signal. Based on the sound signals collected by different sound acquisition units on the right earphone in the original signal group of the right ear, the environmental noise in the area to the right of the user's head is initially reduced to obtain the right-side initial noise-reduced sound signal. Based on the noise signal and the relative position of the relay device and the user's body, the environmental noise in the initial noise reduction signal of the right channel is subjected to secondary noise reduction to obtain the right channel voice signal.

2. The voice call method according to claim 1, characterized in that, The process of performing speech noise reduction on the original speech signal to obtain the uplink speech signal includes: The left-channel speech signal is obtained by eliminating environmental noise within the range on the left side of the user's head based on the original signal group of the left ear, and the right-channel speech signal is obtained by eliminating environmental noise within the range on the right side of the user's head based on the original signal group of the right ear. Based on the left-channel voice signal and the right-channel voice signal, the uplink voice signal is obtained.

3. A voice call system, characterized in that, include: The relay device and two earphones; The earphone is equipped with at least two sound acquisition units, which are used to acquire raw speech signals. The relay device is communicatively connected to the two earpieces respectively, and is used to perform the voice call method as described in claim 1 or 2.

4. The voice call system according to claim 3, characterized in that, The relay device includes a sound acquisition unit; The relay device is also used to perform the voice call method as described in claim 1.

5. A wearable device, characterized in that, include: A processor, a memory, and a wireless communication unit respectively connected to the processor; The wireless communication unit is used to establish communication connections with the two paired earphones respectively, and to establish communication connections with a preset terminal. The memory includes computer instructions stored thereon, which, when executed by the processor, cause the processor to perform the voice call method according to any one of claims 1 or 2.

6. The wearable device according to claim 5, characterized in that, It also includes a sound acquisition unit connected to the processor; The processor is also used to perform the voice call method as described in claim 1.

7. A battery compartment, comprising: The battery compartment body is used to store two earphones and charge the two earphones; characterized in that it further includes: a processor, a memory and a wireless communication unit; The processor is connected to the memory and the wireless communication unit, respectively; The wireless communication unit is used to establish communication connections with the two earphones worn by the user, and to establish communication connections with a preset terminal. The memory includes computer instructions stored thereon, which, when executed by the processor, cause the processor to perform the voice call method according to any one of claims 1 or 2.

8. The battery compartment according to claim 7, characterized in that, It also includes a sound acquisition unit connected to the processor; The processor is also used to perform the voice call method as described in claim 1.

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