CN110350935B - Audio signal output control method, wearable device and readable storage medium - Google Patents
Audio signal output control method, wearable device and readable storage medium Download PDFInfo
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- CN110350935B CN110350935B CN201910448249.1A CN201910448249A CN110350935B CN 110350935 B CN110350935 B CN 110350935B CN 201910448249 A CN201910448249 A CN 201910448249A CN 110350935 B CN110350935 B CN 110350935B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3827—Portable transceivers
- H04B1/385—Transceivers carried on the body, e.g. in helmets
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/12—Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3827—Portable transceivers
- H04B1/385—Transceivers carried on the body, e.g. in helmets
- H04B2001/3872—Transceivers carried on the body, e.g. in helmets with extendable microphones or earphones
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
Abstract
The application provides an audio signal output control method, which is applied to wearable equipment, wherein the wearable equipment comprises a bone conduction microphone, an air conduction microphone, a loudspeaker and a bone conduction motor, and the method comprises the following steps: acquiring a first audio signal and a second audio signal through a bone conduction microphone and an air conduction microphone, respectively; comparing the first audio signal with the second audio signal to obtain a comparison result; determining to adopt the bone conduction motor to output according to the comparison result, and controlling a third audio signal of the wearable device to output through the bone conduction motor; otherwise, a third audio signal controlling the wearable device is output through the speaker. By implementing the method and the device, the defects that the normal life and work of other people are interfered or personal privacy is revealed due to the fact that the audio signal output of the conventional wearable device is output by the default loudspeaker are avoided as much as possible, and user experience and safety are improved.
Description
Technical Field
The present application relates to the field of wearable device technologies, and in particular, to an audio signal output control method, a wearable device, and a readable storage medium.
Background
With the development of wearable equipment technology, wearable equipment (such as wrist strap formula intelligence wrist machine, intelligent wrist-watch, intelligent bracelet etc.) receives more and more liking and accepting of people. All be provided with the speaker of output sound on these wearable products usually, and the output mode of acquiescence audio signal is for through speaker sound of putting outward, can disturb other people normal work life like this on the one hand, and on the other hand also can cause individual privacy to reveal, leads to user experience poor, and the security is low.
Disclosure of Invention
The invention mainly solves the technical problem that in the existing scheme, the default audio signal output mode on the wearable product is to emit sound through a loudspeaker, so that on one hand, normal work and life of other people can be interfered, on the other hand, personal privacy can be leaked, and user experience is poor and safety is low.
In view of the technical problem, an output control method of an audio signal is provided, which is applied to a wearable device, the wearable device includes a bone conduction microphone, an air conduction microphone, a speaker and a bone conduction motor, and the audio signal output control method includes:
acquiring a first audio signal and a second audio signal through the bone conduction microphone and the air conduction microphone, respectively;
comparing the first audio signal with the second audio signal to obtain a comparison result;
determining to adopt a bone conduction motor to output according to the comparison result, and controlling a third audio signal of the wearable device to output through the bone conduction motor; otherwise, controlling a third audio signal of the wearable device to be output through a loudspeaker.
Optionally, comparing the first audio signal and the second audio signal comprises at least one of:
comparing a first signal strength of the first audio signal to a second signal strength of the second audio signal;
a first duration of a valid audio signal of the first audio signals is compared to a second duration of a valid audio signal of the second audio signals.
Optionally, comparing the first audio signal and the second audio signal: when the first signal intensity of the first audio signal is compared with the second signal intensity of the second audio signal, and the first signal intensity is greater than the second signal intensity as a comparison result, determining to adopt the bone conduction motor for output;
comparing the first audio signal and the second audio signal: and when the first duration of the effective audio signal in the first audio signal is compared with the second duration of the effective audio signal in the second audio signal, determining to adopt the bone conduction motor for output when the comparison result shows that the first duration is longer than the second duration.
Optionally, comparing the first audio signal and the second audio signal comprises: when comparing a first duration of a valid audio signal in the first audio signal with a second duration of a valid audio signal in the second audio signal, the valid audio signal is any one of the following:
the audio signal comprising a sound characteristic of a user of the wearable device;
the audio signal is higher than a preset reference value.
Optionally, the wearable device further includes a first power amplifier, and when controlling the third audio signal to be output to the speaker, the third audio signal passes through the first power amplifier, and outputs the third audio signal to the speaker through an earphone positive electrode and an earphone negative electrode;
when the third audio signal is controlled to be output to the bone conduction motor, the third audio signal is output to the bone transmission motor through the first power amplifier through the positive pole and the negative pole of the bone conduction motor.
Optionally, the wearable device further comprises a first power amplifier and a second power amplifier,
when the third audio signal is controlled to be output to the loudspeaker, the third audio signal passes through the first power amplifier, and outputs the third audio signal to the loudspeaker through the earphone anode and the earphone cathode;
when the third audio signal is controlled to be output to the bone conduction motor, the third audio signal is output to the bone transmission motor through the second power amplifier through the positive pole and the negative pole of the bone conduction motor.
Optionally, the first power amplifier is a class AB power amplifier, and the second power amplifier is a class D power amplifier.
Optionally, before the acquiring the first audio signal by the bone conduction microphone and the acquiring the second audio signal by the air conduction microphone, further comprising,
judging whether the current working state of the wearable equipment meets a preset starting condition or not;
the preset starting condition comprises at least one of the following conditions:
the bone conduction microphone and the air conduction microphone are in working states;
the bone conduction microphone and the air conduction microphone programs are required to be called when the wearable device is currently running.
The wearable device provided by the invention comprises:
the wearable device comprises a processor, a memory, and a communication bus;
the communication bus is used for realizing communication connection between the processor and the memory;
the processor is configured to execute one or more programs stored in the memory to implement the steps of the audio signal output control method described above.
The present invention provides a computer-readable storage medium comprising:
the computer-readable storage medium stores one or more programs, which are executable by one or more processors, to implement the steps of the audio signal output control method described above.
Advantageous effects
According to the audio signal output control method, the wearable device and the readable storage medium, the first audio signal and the second audio signal are acquired through the bone conduction microphone and the air conduction microphone on the wearable device respectively; comparing the first audio signal with the second audio signal to obtain a comparison result; controlling a third audio signal of the wearable device to be output through the bone conduction motor when the bone conduction motor is determined to be adopted for outputting according to the comparison result; otherwise, a third audio signal controlling the wearable device is output through the speaker. By implementing the method and the device, the defects that the normal life and work of other people are interfered or personal privacy is revealed due to the fact that the audio signal output of the conventional wearable device is output by the default loudspeaker are avoided as much as possible, and user experience and safety are improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic hardware structure diagram of an implementation manner of a wearable device according to an embodiment of the present invention;
fig. 2 is a hardware schematic diagram of an implementation of a wearable device provided in an embodiment of the present application;
fig. 3 is a hardware schematic diagram of an implementation of a wearable device provided in an embodiment of the present application;
fig. 4 is a hardware schematic diagram of an implementation of a wearable device provided in an embodiment of the present application;
fig. 5 is a hardware schematic diagram of an implementation manner of a wearable device provided in an embodiment of the present application;
fig. 6 is a schematic layout diagram of a microphone of a wearable device according to an embodiment of the present application;
fig. 7 is a schematic diagram of an audio signal output control method according to an embodiment of the present application;
fig. 8 is a schematic diagram of another audio signal output control method according to an embodiment of the present application;
fig. 9 is a schematic diagram of a specific audio signal output control method according to a second embodiment of the present application;
fig. 10 is a schematic structural diagram of a wearable device provided in the third embodiment of the present application.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for facilitating the explanation of the present invention, and have no specific meaning in itself. Thus, "module", "component" or "unit" may be used mixedly.
The wearable device provided by the embodiment of the invention comprises a mobile terminal such as an intelligent bracelet, an intelligent watch, an intelligent mobile phone and the like. With the continuous development of screen technologies, screen forms such as flexible screens and folding screens appear, and mobile terminals such as smart phones can also be used as wearable devices. The wearable device provided in the embodiment of the present invention may include: a Radio Frequency (RF) unit, a WiFi module, an audio output unit, an a/V (audio/video) input unit, a sensor, a display unit, a user input unit, an interface unit, a memory, a processor, and a power supply.
In the following description, a wearable device will be taken as an example, please refer to fig. 1, which is a schematic diagram of a hardware structure of a wearable device for implementing various embodiments of the present invention, where the wearable device 100 may include: RF (Radio Frequency) unit 101, WiFi module 102, audio output unit 103, a/V (audio/video) input unit 104, sensor 105, display unit 106, user input unit 107, interface unit 108, memory 109, processor 110, and power supply 111. Those skilled in the art will appreciate that the wearable device structure shown in fig. 1 does not constitute a limitation of the wearable device, and that the wearable device may include more or fewer components than shown, or combine certain components, or a different arrangement of components.
The following describes the various components of the wearable device in detail with reference to fig. 1:
the rf unit 101 may be configured to receive and transmit signals during information transmission and reception or during a call, and specifically, the rf unit 101 may transmit uplink information to a base station, in addition, the downlink information sent by the base station may be received and then sent to the processor 110 of the wearable device for processing, the downlink information sent by the base station to the radio frequency unit 101 may be generated according to the uplink information sent by the radio frequency unit 101, or may be actively pushed to the radio frequency unit 101 after detecting that the information of the wearable device is updated, for example, after detecting that the geographic location where the wearable device is located changes, the base station may send a message notification of the change in the geographic location to the radio frequency unit 101 of the wearable device, and after receiving the message notification, the message notification may be sent to the processor 110 of the wearable device for processing, and the processor 110 of the wearable device may control the message notification to be displayed on the display panel 1061 of the wearable device; typically, radio frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 101 may also communicate with a network and other devices through wireless communication, which may specifically include: the server may push a message notification of resource update to the wearable device through wireless communication to remind a user of updating the application program if the file resource corresponding to the application program in the server is updated after the wearable device finishes downloading the application program. The wireless communication may use any communication standard or protocol, including but not limited to GSM (Global System for Mobile communications), GPRS (General Packet Radio Service), CDMA2000(Code Division Multiple Access 2000), WCDMA (Wideband Code Division Multiple Access), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access), FDD-LTE (Frequency Division duplex Long Term Evolution), and TDD-LTE (Time Division duplex Long Term Evolution).
In one embodiment, the wearable device 100 may access an existing communication network by inserting a SIM card.
In another embodiment, the wearable device 100 may be configured with an esim card (Embedded-SIM) to access an existing communication network, and by using the esim card, the internal space of the wearable device may be saved, and the thickness may be reduced.
It is understood that although fig. 1 shows the radio frequency unit 101, it is understood that the radio frequency unit 101 does not belong to the essential constituents of the wearable device, and can be omitted entirely as required within the scope not changing the essence of the invention. The wearable device 100 may implement a communication connection with other devices or a communication network through the wifi module 102 alone, which is not limited by the embodiments of the present invention.
WiFi belongs to short-distance wireless transmission technology, and the wearable device can help a user to send and receive e-mails, browse webpages, access streaming media and the like through the WiFi module 102, and provides wireless broadband Internet access for the user. Although fig. 1 shows the WiFi module 102, it is understood that it does not belong to the essential constitution of the wearable device, and may be omitted entirely as needed within the scope not changing the essence of the invention.
The audio output unit 103 may convert audio data received by the radio frequency unit 101 or the WiFi module 102 or stored in the memory 109 into an audio signal and output as sound when the wearable device 100 is in a call signal reception mode, a talk mode, a recording mode, a voice recognition mode, a broadcast reception mode, or the like. Also, the audio output unit 103 may also provide audio output related to a specific function performed by the wearable device 100 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 103 may include a speaker, a buzzer, and the like.
The a/V input unit 104 is used to receive audio or video signals. The a/V input Unit 104 may include a Graphics Processing Unit (GPU) 1041 and a microphone 1042, the Graphics processor 1041 Processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 106. The image frames processed by the graphic processor 1041 may be stored in the memory 109 (or other storage medium) or transmitted via the radio frequency unit 101 or the WiFi module 102. The microphone 1042 may receive sounds (audio data) via the microphone 1042 in a phone call mode, a recording mode, a voice recognition mode, or the like, and may be capable of processing such sounds into audio data. The processed audio (voice) data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 101 in case of a phone call mode. The microphone 1042 may implement various types of noise cancellation (or suppression) algorithms to cancel (or suppress) noise or interference generated in the course of receiving and transmitting audio signals.
In one embodiment, the wearable device 100 includes one or more cameras, and by turning on the cameras, capturing of images can be realized, functions such as photographing and recording can be realized, and the positions of the cameras can be set as required.
The wearable device 100 also includes at least one sensor 105, such as light sensors, motion sensors, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 1061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 1061 and/or the backlight when the wearable device 100 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in various directions (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used for applications of recognizing the posture of a mobile phone (such as landscape screen control, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer, tapping), and the like.
In one embodiment, the wearable device 100 further comprises a proximity sensor, and the wearable device can realize non-contact operation by adopting the proximity sensor, so that more operation modes are provided.
In one embodiment, the wearable device 100 further comprises a heart rate sensor, which, when worn, enables detection of heart rate by proximity to the user.
In one embodiment, the wearable device 100 may further include a fingerprint sensor, and by reading the fingerprint, functions such as security verification can be implemented.
The display unit 106 is used to display information input by a user or information provided to the user. The Display unit 106 may include a Display panel 1061, and the Display panel 1061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.
In one embodiment, the display panel 1061 is a flexible display screen, and when the wearable device using the flexible display screen is worn, the screen can be bent, so that the wearable device is more conformable. Optionally, the flexible display screen may adopt an OLED screen body and a graphene screen body, in other embodiments, the flexible display screen may also be made of other display materials, and this embodiment is not limited thereto.
In one embodiment, the display panel 1061 of the wearable device may take a rectangular shape to wrap around when worn. In other embodiments, other approaches may be taken.
The user input unit 107 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the wearable device. Specifically, the user input unit 107 may include a touch panel 1071 and other input devices 1072. The touch panel 1071, also referred to as a touch screen, may collect a touch operation performed by a user on or near the touch panel 1071 (e.g., an operation performed by the user on or near the touch panel 1071 using a finger, a stylus, or any other suitable object or accessory), and drive a corresponding connection device according to a predetermined program. The touch panel 1071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 110, and can receive and execute commands sent by the processor 110. In addition, the touch panel 1071 may be implemented in various types, such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to the touch panel 1071, the user input unit 107 may include other input devices 1072. In particular, other input devices 1072 may include, but are not limited to, one or more of a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like, and are not limited to these specific examples.
In one embodiment, the side of the wearable device 100 may be provided with one or more buttons. The button can realize various modes such as short-time pressing, long-time pressing, rotation and the like, thereby realizing various operation effects. The number of the buttons can be multiple, and different buttons can be combined for use to realize multiple operation functions.
Further, the touch panel 1071 may cover the display panel 1061, and when the touch panel 1071 detects a touch operation thereon or nearby, the touch panel 1071 transmits the touch operation to the processor 110 to determine the type of the touch event, and then the processor 110 provides a corresponding visual output on the display panel 1061 according to the type of the touch event. Although in fig. 1, the touch panel 1071 and the display panel 1061 are two independent components to implement the input and output functions of the wearable device, in some embodiments, the touch panel 1071 and the display panel 1061 may be integrated to implement the input and output functions of the wearable device, and is not limited herein. For example, when receiving a message notification of an application program through the rf unit 101, the processor 110 may control the message notification to be displayed in a predetermined area of the display panel 1061, where the predetermined area corresponds to a certain area of the touch panel 1071, and perform a touch operation on the certain area of the touch panel 1071 to control the message notification displayed in the corresponding area on the display panel 1061.
The interface unit 108 serves as an interface through which at least one external device is connected to the wearable apparatus 100. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 108 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the wearable apparatus 100 or may be used to transmit data between the wearable apparatus 100 and the external device.
In one embodiment, the interface unit 108 of the wearable device 100 is configured as a contact, and is connected to another corresponding device through the contact to implement functions such as charging and connection. The contact can also be waterproof.
The memory 109 may be used to store software programs as well as various data. The memory 109 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 109 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
The processor 110 is a control center of the wearable device, connects various parts of the entire wearable device by various interfaces and lines, and performs various functions of the wearable device and processes data by running or executing software programs and/or modules stored in the memory 109 and calling up data stored in the memory 109, thereby performing overall monitoring of the wearable device. Processor 110 may include one or more processing units; preferably, the processor 110 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 110.
The wearable device 100 may further include a power source 111 (such as a battery) for supplying power to various components, and preferably, the power source 111 may be logically connected to the processor 110 through a power management system, so as to implement functions of managing charging, discharging, and power consumption through the power management system.
Although not shown in fig. 1, the wearable device 100 may further include a bluetooth module or the like, which is not described herein. The wearable device 100 can be connected with other terminal devices through Bluetooth, so that communication and information interaction are realized.
Please refer to fig. 2-4, which are schematic structural diagrams of a wearable device according to an embodiment of the present invention. The wearable device in the embodiment of the invention comprises a flexible screen. When the wearable device is unfolded, the flexible screen is in a strip shape; when the wearable device is in a wearing state, the flexible screen is bent to be annular. Fig. 2 and 3 show the structural schematic diagram of the wearable device screen when the wearable device screen is unfolded, and fig. 4 shows the structural schematic diagram of the wearable device screen when the wearable device screen is bent.
Based on the above embodiments, it can be seen that, if the device is a watch, a bracelet, or a wearable device, the screen of the device may not cover the watchband region of the device, and may also cover the watchband region of the device. Here, the present application proposes an optional implementation manner, in which the device may be a watch, a bracelet, or a wearable device, and the device includes a screen and a connection portion. The screen can be a flexible screen, and the connecting part can be a watchband. Optionally, the screen of the device or the display area of the screen may partially or completely cover the wristband of the device. As shown in fig. 5, fig. 5 is a hardware schematic diagram of an implementation manner of a wearable device provided in an embodiment of the present application, where a screen of the device extends to two sides, and a part of the screen is covered on a watchband of the device. In other embodiments, the screen of the device may also be entirely covered on the watchband of the device, and this is not limited in this application.
The following is a detailed description of specific examples.
First embodiment
The embodiment provides an audio signal output control method, which can be used in a wearable device including a bone conduction microphone and an air conduction microphone, when a user answers a call, the method can compare a first audio signal and a second audio signal received by the bone conduction microphone and the air conduction microphone when the user answers the call, and determine whether an input main body of a current third audio signal is input by the bone conduction microphone according to a comparison result, if so, control the third audio signal of the wearable device to be output through a bone conduction motor, and if not, control the third audio signal of the wearable device to be output through a speaker. The implementation of above scheme has avoided the audio signal output of current wearable equipment to acquiesce with loudspeaker output as far as, leads to disturbing other people normal life work, perhaps causes the drawback that individual privacy revealed, has promoted user experience and security.
It should be understood that the method for controlling output of audio and video signals provided by the present embodiment may be implemented by being disposed on a wearable device having a bone conduction microphone and a conventional microphone, for example, including but not limited to a wrist-worn smart wrist phone, a smart watch, a smart bracelet, etc., and the method for controlling output of audio signals provided by the present embodiment may be applied to a wearable device having a call function, and may also be applied to other wearable devices that do not have a call function but have audio input and audio output functions, for example, a wearable device having a karaoke function, etc.
Fig. 6 is a schematic diagram illustrating a microphone layout of a wearable device according to an embodiment of the present application, and referring to fig. 6, when the audio signal output control method according to the embodiment is applied to a wristband type smart wrist machine, a bone conduction microphone MIC1 is disposed on the wristband, and an air conduction microphone MIC2 is disposed below a screen.
In this embodiment, the audio signal output control method may refer to fig. 7, which is applied to a wearable device, as shown in fig. 7, and the audio signal output control method includes:
s701: acquiring a first audio signal and a second audio signal through a bone conduction microphone and an air conduction microphone, respectively;
s702, comparing the first audio signal with the second audio signal to obtain a comparison result;
s703: determining to adopt the bone conduction motor to output according to the comparison result, and controlling a third audio signal of the wearable device to output through the bone conduction motor; otherwise, a third audio signal controlling the wearable device is output through the speaker.
In the embodiment of the present invention, the number of the air conduction microphones may be one or more, and the air conduction microphones are configured to receive the vibration signal transmitted through the air medium and convert the vibration signal into an audio signal. In some embodiments, the air conduction microphone may be mounted on the top of the wearable device, where the top refers to the portion of the user that does not contact the user's skin when the wearable device is properly worn, such as the edge of the screen of a wrist-worn smart wrist-phone.
The bone conduction microphone can be one or more in number, and can be used for receiving the vibration signal transmitted by the bone medium and converting the vibration signal from the bone medium into an audio signal. It should be noted that the bone conduction microphone is mounted at the bottom of the wearable device, and it is reached that the user can contact with the skin of the user when the wearable device is worn correctly, for example, the inner side of the wrist band type smart wrist machine. The bottom of the wearable device here comprises the part that comes into contact with the user's skin when the user is wearing the wearable device correctly. It should be noted that, due to the particularity of the bone conduction audio, the bone conduction microphone is in full contact with the skin of the user to achieve a better audio transmission effect.
It should be noted that, in the embodiment of the present invention, the bone conduction microphone and the bone conduction motor may be in a two-in-one type, or may be separated from each other.
In some embodiments, the acquiring of the first audio signal by the bone conduction microphone and the acquiring of the second audio signal by the air conduction microphone may be performed synchronously or sequentially, and the order of the acquiring may not be limited in the embodiments of the present invention.
In some embodiments, comparing the first audio signal and the second audio signal comprises at least one of:
comparing a first signal strength of the first audio signal to a second signal strength of the second audio signal;
a first duration of a valid audio signal in the first audio signal is compared to a second duration of a valid audio signal in the second audio signal.
It should be noted that, the first signal strength of the first audio signal and the second signal strength of the second audio signal obtained by the bone conduction microphone and the air conduction microphone respectively may be obtained by monitoring the current or voltage of each of the bone conduction microphone and the air conduction microphone, or may be obtained in other realizable manners, for example, by obtaining the current or voltage value and obtaining other index values obtained by performing certain operations, and the like, which is not limited herein.
It should be noted that, in the embodiment of the present invention, the valid audio signal includes any one of the following signals:
an audio signal comprising a sound characteristic of a user of the wearable device;
the audio signal is obtained when the value is higher than the preset reference value.
In the embodiment of the present invention, in order to make the comparison between the first audio signal and the second audio signal more scientific and accurate, the audio signal of the sound characteristic of the user of the wearable device may be obtained by extracting and setting the sound characteristic of the user of the wearable device in advance, for example, by extracting or presetting the audio characteristic value of the sound of the user of the wearable device, comparing the audio characteristic value of the second audio signal in the air conduction microphone and the audio characteristic value of the first audio signal in the bone conduction microphone in the wearable device with the audio characteristic value of the sound of the user of the wearable device according to the audio characteristic value, if the audio characteristic values are the same, the first or second audio signal of the same part is a valid audio signal;
in the embodiment of the present invention, it may also be determined whether the first audio signal of the current bone conduction microphone and the second audio signal of the air conduction microphone are higher than a preset reference value. The preset reference value may be a preset power value, a preset voltage value, a preset current value, and the like of the bone conduction microphone and the air conduction microphone. The audio signal higher than the predetermined reference value is the valid audio signal.
In some embodiments, comparing the first audio signal and the second audio signal: when the first signal intensity of the first audio signal is compared with the second signal intensity of the second audio signal, and the first signal intensity is greater than the second signal intensity as a comparison result, determining to adopt the bone conduction motor for output;
comparing the first audio signal and the second audio signal: and when the first duration of the effective audio signal in the first audio signal is compared with the second duration of the effective audio signal in the second audio signal, determining to adopt the bone conduction motor for output when the comparison result shows that the first duration is longer than the second duration.
It should be noted that, in the embodiment of the present invention, when there is only one bone conduction microphone on the wearable device, the first signal strength is the first signal strength corresponding to the bone conduction microphone; when the wearable device has two or more bone conduction microphones, the first signal strength at this time may be an average value of signal strengths of the bone conduction microphones according to a preset rule or a user setting, may also be a signal strength corresponding to a bone conduction microphone with the highest signal strength among the bone conduction microphones, and may also be an average value or a maximum value of signal strengths of the bone conduction microphones after noise reduction, and the like.
It should be noted that, in the embodiment of the present invention, when only one air conduction microphone is located on the wearable device, the second signal strength is the second signal strength corresponding to the air conduction microphone; when the wearable device has two or more air conduction microphones, the second signal strength may be an average value of signal strengths of the air conduction microphones according to a preset rule or a user setting, a signal strength corresponding to an air conduction microphone with the highest signal strength among the air conduction microphones, or an average value or a maximum value of signal strengths of the air conduction microphones after noise reduction, or the like.
It should be noted that, the first signal strength or the second signal strength may be obtained in real time, and corresponding control operation is performed according to the comparison result; or may be acquired once in a certain acquisition period, for example, once every 30 seconds, and corresponding control is performed according to the comparison result.
In the embodiment of the present invention, when the wearable device includes one or more air conduction microphones and one or more bone conduction microphones, the first signal intensities of the bone conduction microphones and the second signal intensities of the air conduction microphones are compared, and the comparison result is obtained by direct comparison, or by performing level division on the first and second signal intensity values and then performing level comparison to obtain the comparison result. For example, a certain wearable device includes a bone conduction microphone a, an air conduction microphone B, and an air conduction microphone C, where a first signal strength obtained when the current bone conduction microphone a is a, a second signal strength obtained when the current bone conduction microphone B is B, and a second signal strength obtained when the current air conduction microphone C is C, where a > B > C, the comparison result may be that the current wearable device adopts a bone conduction motor for output. For another example, a wearable device includes a bone conduction microphone a, an air conduction microphone B, and an air conduction microphone C, where a first signal strength obtained at this time is e, a second signal strength obtained at the air conduction microphone B is f, and a third signal strength obtained at the air conduction microphone C is g, and at this time, according to a preset ranking criterion, the bone conduction microphone a belongs to a first rank, the air conduction microphone B belongs to the first rank, the air conduction microphone C belongs to a second rank, and if it is known that the priority of the second rank is higher than the first rank, a comparison result may be obtained at this time, and the comparison result is that the wearable device adopts a bone conduction motor to output.
In the embodiment of the present invention, when the first duration of the valid audio signal in the first audio signal is compared with the second duration of the valid audio signal in the second audio signal, when the valid audio signal is an audio signal including a sound feature of a wearable device user, for example, when the acquisition duration is a second, B seconds exist in the first audio signal obtained by comparing the currently acquired sound features of the first and second audio signals with a preset sound feature of the wearable device user, and C seconds in the second audio signal are consistent, if B > C, it may be determined that bone conduction output is used. It should be noted that, the above-mentioned B seconds and C seconds may be continuous time length between the acquisition time length a seconds, or may be cumulative time length; the comparison mode can also be that the B/A, C/A ratio is used for comparison, if the B/A ratio is larger, the bone conduction motor output can be determined; the sound feature may be a feature such as a sound feature value, and is not limited in this embodiment.
In some embodiments, in order to make the output audio quality better, the audio quality may be improved by matching with a power amplifier, so as to improve the user experience, specifically, the following steps may be performed:
the wearable device further comprises a first power amplifier, and when the third audio signal is controlled to be output to the loudspeaker, the third audio signal passes through the first power amplifier, the positive pole of the receiver and the negative pole of the receiver to output the third audio signal to the loudspeaker;
when the third audio signal is controlled to be output to the bone conduction motor, the third audio signal is output to the bone conduction motor through the positive pole of the bone conduction motor and the negative pole of the bone conduction motor by the first power amplifier.
In some embodiments, two power amplifiers are included in the wearable device, as follows:
the wearable device also includes a first power amplifier and a second power amplifier,
when the third audio signal is controlled to be output to the loudspeaker, the third audio signal passes through the first power amplifier, and outputs the third audio signal to the loudspeaker through the positive pole and the negative pole of the receiver;
when the third audio signal is controlled to be output to the bone conduction motor, the third audio signal is output to the bone conduction motor through the positive pole of the bone conduction motor and the negative pole of the bone conduction motor by the second power amplifier.
It should be noted that, according to the requirement, the power amplifiers used in the scenario where the wearable device includes two power amplifiers may be the same or multiple, and when multiple power amplifiers are used, the types of the power amplifiers may be the same or different. The power amplifier can be one or more of A-type power amplifier, B-type power amplifier, C-type power amplifier and AB-type power amplifier.
In some embodiments, the first power amplifier is a class AB power amplifier and the second power amplifier is a class D power amplifier.
In some embodiments, referring to fig. 8, fig. 8 is a schematic diagram of another audio signal output control method according to an embodiment of the present invention, before acquiring a first audio signal by the bone conduction microphone and acquiring a second audio signal by the air conduction microphone, the method further includes:
s801: judging whether the current working state of the wearable equipment meets a preset starting condition or not;
in an embodiment of the present invention, the preset starting condition includes at least one of the following:
the bone conduction microphone and the air conduction microphone are in working states;
the wearable device currently runs with the need to invoke the bone conduction microphone and air conduction microphone programs.
It should be noted that, the detection of the current working states of the bone conduction microphone and the air conduction microphone may be real-time detection, or may be performed at certain time intervals, for example, once every 30 seconds. In some embodiments, the detection may be performed by detecting an operation state of a preset specific software, for example, detecting that the wearable device is running the national karaoke software or the conversation software, it may be determined that the operation states of the bone conduction microphone and the air conduction microphone need to be detected currently.
The detection may be performed by a related device built in the wearable device, or may be performed by an external device connected to the wearable device, and then the data is transmitted back to the wearable device, which is not limited herein.
In some embodiments, the current operating states of the bone conduction microphone and the air conduction microphone are detected by detecting current and voltage states of the bone conduction microphone and the air conduction microphone to determine the operating states of the bone conduction microphone and the air conduction microphone, and the determining of the operating states of the bone conduction microphone and the air conduction microphone may also be performed in other manners, such as determining the on states of the bone conduction microphone and the air conduction microphone, and the like, which is not limited herein.
It should be noted that the bone conduction motor in the embodiment of the present invention includes a bone conduction speaker for implementing a bone conduction mode, and is configured to convert an audio signal to be output into a vibration signal and transmit the vibration signal to a user through a bone medium. The bone conduction motor can be installed at the bottom of the wearable device, so that the bone conduction motor can be in contact with the skin of the user when the user correctly wears the wearable device, and therefore the bone conduction motor is guaranteed to output audio signals needing to be output to the user through bone media. The bottom of the wearable device here comprises the part that comes into contact with the user's skin when the user is wearing the wearable device correctly. It should be noted that, due to the particularity of the bone conduction audio, the bone conduction motor is in full contact with the skin of the user to achieve a better audio transmission effect.
In the embodiment of the invention, in order to enable a user to obtain better audio signal quality when the bone conduction motor outputs an audio signal, the user can be advised or prompted to prop one finger of an arm wearing wearable equipment against the root of an ear or go deep into the ear, and the ear is in a state of forming a closed sound cavity, so that a vibration signal converted by the bone conduction motor can be transmitted to the ear through a bone medium and can cause sufficient resonance of the ear, and a better audio transmission effect can be achieved. A corresponding message prompt may be issued through the screen of the wearable device.
Second embodiment
In order to better understand the present invention, in this embodiment, on the basis of the first embodiment, the wearable device includes two audio signal output control devices of power amplifiers, and class AB power amplifier class AB and class D power amplifier class D are taken as examples, and the present invention is further illustrated in a call answering scene.
Fig. 9 is a schematic diagram of a control process of a specific audio signal output control method according to a second embodiment of the present application, and referring to fig. 9, a bone conduction motor is electrically connected to an audio module codec through a bone conduction motor positive electrode M1P and a bone conduction motor negative electrode M1N, and a speaker SPK is electrically connected to the audio module codec through a handset positive electrode EAP _ P and a handset negative electrode EAR _ N. The present invention will be further described with reference to the application scenario of the wristband type smart wrist machine provided in fig. 6.
When the wrist strap type intelligent wrist machine receives an incoming call request of a main call terminal, the bone conduction microphone MIC1 and the air conduction microphone MIC2 on the wrist strap type intelligent wrist machine start to work, a first audio signal and a second audio signal of the bone conduction microphone MIC1 and the air conduction microphone MIC2 are respectively obtained, and a comparison result is obtained after comparison.
When the first audio signal and the second audio signal are compared and the first signal strength and the second signal strength of the first audio signal and the second audio signal are used as comparison parameters, if the comparison result is that the first signal strength of the bone conduction microphone MIC1 is greater than the second signal strength of the air conduction microphone MIC2, it is judged that the user needs to use the bone conduction motor to output the audio signal, the third audio signal output by the audio module codec is controlled to be output to the bone conduction motor, meanwhile, the quality of the third audio signal is improved by the class D power amplifier class D, and the improved third audio signal is output to the bone conduction motor through the bone conduction motor positive pole M1P and the bone conduction motor negative pole M1N;
and if the comparison result shows that the first signal intensity of the bone conduction microphone MIC1 is smaller than the second signal intensity of the air conduction microphone MIC2, judging that the user is using the air conduction microphone to answer the call, controlling the third audio signal output by the audio module codec to be output to the loudspeaker SPK, simultaneously using the AB class power amplifier class AB to improve the quality of the third audio signal output by the audio module codec, and outputting the improved third audio signal to the loudspeaker SPK through the earphone anode EAR _ P and the earphone cathode EAR _ N for output.
When comparing the first audio signal with the second audio signal, the comparison between the first duration of the valid audio signal in the first audio signal and the second duration of the valid audio signal in the second audio signal is used as a comparison parameter, the comparison between the first audio signal and a preset reference value is required, the time length of the time length which is higher than the preset reference value in the preset time is the first duration, the value of the second duration is the same as the first duration, if the first duration is longer than the second duration, if the user needs to use the bone conduction motor to output the audio signal, the third audio signal output by the audio module codec is controlled to be output to the bone conduction motor, meanwhile, the quality of the third audio signal is improved by using a class D power amplifier class D, and the improved third audio signal is output to a bone conduction motor through a bone conduction motor anode M1P and a bone conduction motor cathode M1N;
if the first duration is shorter than the second duration, judging that the user is answering the call by using the air conduction microphone, controlling a third audio signal output by the audio module codec to be output to the loudspeaker SPK, simultaneously using an AB type power amplifier class AB to improve the quality of the third audio signal output by the audio module codec, and outputting the improved third audio signal to the loudspeaker SPK through the earphone anode EAR _ P and the earphone cathode EAR _ N to be output.
It should be noted that, in the embodiments of the present invention, the bone conduction motor and the bone conduction microphone may be a two-in-one bone conduction motor/bone conduction microphone, or may be two separate parts; the air conduction microphone and the loudspeaker in the embodiments of the present invention may be a two-in-one air conduction microphone/loudspeaker, or may be two separate parts.
Third embodiment
The wearable equipment can be a watch type with a wrist as a support, and comprises products such as a watch, a wrist strap type intelligent wrist machine, an intelligent watch, an intelligent bracelet and the like, a shoes type with feet as a support, and comprises products worn on shoes, socks or other legs, a Glass type with a head as a support, and various non-mainstream product forms such as intelligent clothes, a schoolbag, a crutch, accessories and the like.
Referring to fig. 10, fig. 10 is a schematic diagram of a wearable device, as shown in fig. 10, the wearable device includes a processor 1001, a memory 1002, and a communication bus 1003, wherein:
the communication bus 1003 is used for realizing connection communication between the processor 1001 and the memory 1002;
the processor 1001 is configured to execute the steps of the audio signal output control method as in the above-described embodiments stored in the memory 1002.
Fourth embodiment
The present embodiment provides a computer-readable storage medium, which stores one or more programs, where the one or more programs are executable by one or more processors to implement the steps of the audio signal output control method according to the first embodiment and/or the second embodiment, and are not described herein again.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (8)
1. An audio signal output control method applied to a wearable device, wherein the wearable device comprises a bone conduction microphone, an air conduction microphone, a loudspeaker and a bone conduction motor, and the audio signal output control method comprises the following steps:
acquiring a first audio signal through the bone conduction microphone and a second audio signal through the air conduction microphone;
comparing the first audio signal with the second audio signal to obtain a comparison result; comparing the first audio signal and the second audio signal comprises:
comparing a first signal strength of the first audio signal to a second signal strength of the second audio signal;
comparing a first duration of a valid audio signal of the first audio signals to a second duration of a valid audio signal of the second audio signals;
determining to adopt the bone conduction motor to output according to the comparison result, and controlling a third audio signal of the wearable device to output through the bone conduction motor; otherwise, controlling the third audio signal of the wearable device to be output through a loudspeaker; and the comparison result is that when the first signal intensity is greater than the second signal intensity or the first duration is greater than the second duration, the bone conduction motor output is determined to be adopted.
2. The audio signal output control method of claim 1, comparing the first audio signal and the second audio signal comprising: when comparing a first duration of a valid audio signal in the first audio signal with a second duration of a valid audio signal in the second audio signal, the valid audio signal is any one of the following audio signals:
the audio signal comprising a sound characteristic of a user of the wearable device;
the audio signal is higher than a preset reference value.
3. The audio signal output control method according to any one of claims 1 to 2, wherein the wearable device further includes a first power amplifier, and when controlling the third audio signal to be output to the speaker, the third audio signal is output to the speaker through an earphone positive electrode and an earphone negative electrode via the first power amplifier;
when the third audio signal is controlled to be output to the bone conduction motor, the third audio signal is output to the bone conduction motor through the first power amplifier through the positive pole of the bone conduction motor and the negative pole of the bone conduction motor.
4. The audio signal output control method of any one of claims 1-2, wherein the wearable device further comprises a first power amplifier and a second power amplifier,
when the third audio signal is controlled to be output to the loudspeaker, the third audio signal passes through the first power amplifier, and outputs the third audio signal to the loudspeaker through the earphone anode and the earphone cathode;
when the third audio signal is controlled to be output to the bone conduction motor, the third audio signal is output to the bone conduction motor through the second power amplifier through the positive pole of the bone conduction motor and the negative pole of the bone conduction motor.
5. The audio signal output control method of claim 4, wherein the first power amplifier is a class AB power amplifier and the second power amplifier is a class D power amplifier.
6. The audio signal output control method according to any one of claims 1 to 2, further comprising, before the acquiring the first audio signal by the bone conduction microphone and the acquiring the second audio signal by the air conduction microphone,
judging whether the current working state of the wearable equipment meets a preset starting condition or not;
the preset starting condition comprises at least one of the following conditions:
the bone conduction microphone and the air conduction microphone are in working states;
the bone conduction microphone and the air conduction microphone programs are required to be called when the wearable device is currently running.
7. A wearable device, wherein the wearable device comprises a processor, a memory, and a communication bus;
the communication bus is used for realizing communication connection between the processor and the memory;
the processor is configured to execute one or more programs stored in the memory to implement the steps of the audio signal output control method according to any one of claims 1 to 6.
8. A computer-readable storage medium, characterized in that the computer-readable storage medium stores one or more programs which are executable by one or more processors to implement the steps of the audio signal output control method according to any one of claims 1 to 6.
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