CN109994119B - Wireless voice adaptation device, system and audio playing control method - Google Patents

Wireless voice adaptation device, system and audio playing control method Download PDF

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Publication number
CN109994119B
CN109994119B CN201910272951.7A CN201910272951A CN109994119B CN 109994119 B CN109994119 B CN 109994119B CN 201910272951 A CN201910272951 A CN 201910272951A CN 109994119 B CN109994119 B CN 109994119B
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voice
main controller
digital signal
information
wireless
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CN109994119A (en
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王艺辉
黄海涛
张宝月
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Zhuhai Jieli Technology Co Ltd
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Zhuhai Jieli Technology Co Ltd
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    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L15/00—Speech recognition
    • G10L15/22—Procedures used during a speech recognition process, e.g. man-machine dialogue
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L17/00—Speaker identification or verification techniques
    • G10L17/22—Interactive procedures; Man-machine interfaces
    • G10L17/24—Interactive procedures; Man-machine interfaces the user being prompted to utter a password or a predefined phrase
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L15/00—Speech recognition
    • G10L15/22—Procedures used during a speech recognition process, e.g. man-machine dialogue
    • G10L2015/223—Execution procedure of a spoken command

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Computational Linguistics (AREA)
  • Selective Calling Equipment (AREA)
  • Telephone Function (AREA)

Abstract

The application relates to a wireless voice adaptation device, a wireless voice adaptation system and an audio playing control method. The wireless voice adaptation device comprises a pickup device, a main control device and an interface; the main control device comprises a pulse code modulator, a digital signal processor, a wake-up unit and a main controller; the pickup device, the pulse code modulator, the digital signal processor, the main controller and the interface are sequentially connected, and the pickup device is also sequentially connected with the awakening unit and the main controller; the interface is used for data intercommunication with the loudspeaker box. Above-mentioned wireless pronunciation adapter device is when connecting the audio amplifier, can gather user's speech information through the pickup apparatus, and utilize pulse code modulator, digital signal processor and main control unit to handle the speech information who gathers, and the data information that the output corresponds plays to the audio amplifier, makes traditional audio amplifier also can realize the audio playback of user's speech control audio amplifier, and can reduce the consumption that pronunciation awakened up, has effectively promoted the audio control efficiency of traditional audio amplifier.

Description

Wireless voice adaptation device, system and audio playing control method
Technical Field
The present application relates to the field of smart speaker technology, and in particular, to a wireless voice adaptation apparatus, a wireless voice adaptation system, and an audio playing control method.
Background
At present, intelligence pronunciation audio amplifier is more and more popularized, and intelligence pronunciation audio amplifier can make the user pass through pronunciation and relevant operations such as audio playback of steerable audio amplifier promptly, has promoted the convenience that the audio amplifier used greatly.
However, there are more existing ordinary sound boxes in the market, and when playing audio, the ordinary sound boxes still need to manually operate the relevant buttons on the sound boxes by users to realize audio playing control on the sound boxes.
When the user uses above-mentioned current ordinary audio amplifier, manual operation control audio playback operation of audio amplifier is comparatively inconvenient, leads to the audio control efficiency to ordinary audio amplifier lower.
Disclosure of Invention
Therefore, it is necessary to provide a wireless voice adaptation device, a system and an audio playing control method capable of implementing voice control on a common sound box, aiming at the problem that the operation efficiency of audio control is low in the use process of the existing common sound box.
A wireless voice adaptation device comprises a pickup device, a main control device and an interface; the main control device comprises a pulse code modulator, a digital signal processor, a wake-up unit and a main controller; the pickup device, the pulse code modulator, the digital signal processor, the main controller and the interface are sequentially connected, and the pickup device is also sequentially connected with the awakening unit and the main controller; the interface is used for data intercommunication with the loudspeaker box.
In one embodiment, the sound pickup device of the wireless voice adaptation device is used for receiving voice information and sending the received voice information to the awakening unit when the wireless voice adaptation device is in a voice awakening mode, and sending the received voice information to the pulse code modulator when the wireless voice adaptation device is in a voice control mode; the awakening unit is used for identifying the received voice information and sending an identification result to the main controller; the pulse code modulator and the digital signal processor are used for converting the received voice information into a digital signal which can be recognized by the main controller and sending the digital signal to the main controller; the main controller is used for controlling the wireless voice adaptation device to switch to a voice control mode according to the received recognition result, recognizing the digital signal from the digital signal processor and controlling the audio playing of the sound box according to the processing result of the digital signal.
In one embodiment, the wireless voice adaptation device further comprises a wireless communication device and a protocol processor; wherein the wireless communication device, the protocol processor and the digital signal processor are connected in sequence; the wireless communication device is used for being in wireless communication connection with an external terminal.
In one embodiment, the sound pickup device of the wireless voice adaptation device is used for receiving voice information and sending the received voice information to the pulse code modulator when the wireless voice adaptation device is in a voice control mode; the pulse code modulator and the digital signal processor are used for converting the received voice information into a digital signal which can be recognized by the main controller and sending the digital signal to the main controller; the protocol processor is used for carrying out protocol signal conversion on interactive data between the main controller and the wireless communication device; the main controller is used for identifying and processing the received digital signals, receiving audio information of an external terminal from the wireless communication device through the protocol processor according to the processing result of the digital signals, and transmitting the audio information to the sound box through the interface; the audio information is used for indicating the sound box to play the audio information.
In one embodiment, the interface of the wireless voice adapter device comprises a USB interface, the master control device further comprises a USB controller connected between the master controller and the USB interface, and the USB controller is used for performing format conversion on interactive data between the master controller and the USB interface; and the USB interface of the wireless voice adapter device is used for being matched and connected with the USB interface of the sound box.
In one embodiment, the wireless voice adaptation device further comprises a key device, and the key device is connected with the main controller; the key device is used for receiving key information of a user and transmitting the key information to the main controller; the main controller is used for identifying and processing the received key information and controlling the sound box to execute corresponding operation through the interface according to the processing result of the key information.
In one embodiment, the wireless voice adaptation device further comprises a display device, the display device is connected with the main controller, and the display device is used for displaying the working state information of the wireless voice adaptation device.
A wireless voice adaptation system comprises the wireless voice adaptation device of any embodiment, an external terminal and a sound box; the external terminal is in wireless communication connection with the wireless voice adaptation device through the wireless communication device, and the wireless voice adaptation device is in data intercommunication with the loudspeaker box through the interface.
An audio playing control method based on the wireless voice adaptation device of any of the above embodiments includes the following steps:
the sound pickup device receives voice information and sends the received voice information to the awakening unit when the wireless voice adaptation device is in a voice awakening mode; the awakening unit is used for identifying the received voice information and sending an identification result to the main controller; when the received recognition result is a preset awakening voice signal, the main controller controls the wireless voice adaptation device to switch to a voice control mode; the sound pickup device receives voice information and sends the received voice information to the pulse code modulator when the wireless voice adaptation device is in a voice control mode; the pulse code modulator converts the received voice information into a first digital signal and transmits the first digital signal to the digital signal processor; the digital signal processor converts the first digital signal into a second digital signal which can be identified by the main controller and transmits the second digital signal to the main controller; and the main controller identifies the received second digital signal and controls the audio playing of the loudspeaker box according to the processing result of the second digital signal.
In one embodiment, the main controller controls the audio playing of the speaker according to the processing result of the second digital signal, including the steps of: the main controller identifies and judges whether the second digital signal is preset voice control information or not; the voice control information comprises a first voice control instruction or a second voice control instruction; when the main controller judges that the second digital signal is a preset first voice control instruction, a data acquisition request corresponding to the first voice control instruction is initiated to the external terminal through the digital signal processor, the protocol processor and the wireless communication device in sequence; the data acquisition request is used for indicating an external terminal to perform local query or cloud downloading on audio data corresponding to the data acquisition request and returning the audio data to the wireless communication device; the main controller receives audio data returned by the external terminal through the wireless communication device, the protocol processor and the digital signal processor, and outputs the audio data to the sound box through the interface; the audio data is used for indicating the sound box to play the audio data; when the main controller judges that the second digital signal is a preset second voice control instruction, an audio control instruction corresponding to the second voice control instruction is inquired from self-stored data, and the audio control instruction is sent to the sound box through the interface; the audio control instruction is used for instructing the sound box to regulate and control the audio playing parameters.
In one embodiment, the main controller controls the wireless voice adaptation device to switch to the voice control mode when the received recognition result is the preset wake-up voice signal, including: when the received recognition result is a preset awakening voice signal, the main controller controls the wireless voice adaptation device to be switched to a voice control mode and maintains the wireless voice adaptation device in the voice control mode for a preset time period; when the main controller receives a second digital signal converted from the voice information of the user through the pickup device, the pulse code modulator and the digital signal processor within a preset time period, the step of identifying and judging whether the second digital signal is preset voice control information or not by the main controller is executed; when the main controller does not receive the second digital signal converted from the voice information of the user within the preset time period, the main controller controls the wireless voice adapter to switch to a voice awakening mode; when the main controller is in a voice control mode, the main controller continuously monitors voice information of a user through the sound pickup device; when the main controller is in the voice wake-up mode, the main controller prohibits the operation of identifying and judging the voice control information.
In one embodiment, the audio playback control method further includes:
when the received recognition result is a preset awakening voice signal, the main controller: when the wireless voice adaptation device is in a dormant state, the main controller controls the wireless voice adaptation device to be switched from the dormant state to a working state; when the wireless voice adapter device is in a working state, the main controller controls the sound box to reduce the volume to a preset volume range or suspend audio output of the sound box through the interface.
In one embodiment, the audio playback control method further includes:
when the received recognition result is a preset awakening voice signal, the main controller reads the prestored awakening reply information corresponding to the awakening voice signal and sends the awakening reply information to the sound box through the interface; the wake-up reply message is used for instructing the sound box to play the wake-up reply message.
In one embodiment, the data retrieval request is further used for instructing the external terminal to return null data to the wireless communication device when the audio data corresponding to the data retrieval request is not acquired by either local query or cloud download;
the audio playing control method further comprises the following steps:
the main controller receives data returned by the external terminal through the wireless communication device, the protocol processor and the digital signal processor; when the data is identified to be null data, the main controller outputs preset claim failure prompt information to the sound box through the interface, and the claim failure prompt information is used for indicating the sound box to broadcast voice information corresponding to the claim failure prompt information.
The wireless voice adaptation device, the system and the audio playing control method are characterized in that the wireless voice adaptation device is connected with the sound box through the interface for use, voice information of a user is collected through the pickup device, the voice information is wakened up through the wakening unit for recognition of the voice information, the wireless voice adaptation device is wakened up, the voice information collected in a wakening state is processed through the pulse code modulator, the digital signal processor and the main controller, and corresponding data information is output to the sound box, so that the traditional sound box can also realize audio playing of the voice control sound box of the user, the voice information is wakened up through the independently arranged wakening unit for recognition, power consumption of voice wakening up recognition is reduced, and audio control efficiency of the traditional sound box is effectively improved.
Drawings
FIG. 1 is a block diagram of a wireless speech adaptation apparatus according to one embodiment;
FIG. 2 is a block diagram of a wireless speech adapter in another embodiment;
FIG. 3 is a block diagram of a wireless speech adaptation apparatus in yet another embodiment;
FIG. 4 is a block diagram of a wireless speech adaptation system in one embodiment;
FIG. 5 is a flowchart illustrating an exemplary method for controlling audio playback;
FIG. 6 is a flowchart illustrating the audio playing step of controlling the speaker in one embodiment;
FIG. 7 is a flowchart illustrating the steps of switching the voice mode of the wireless voice adaptation apparatus according to an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The embodiment of the present application provides a wireless voice adapting apparatus 10, as shown in fig. 1, the wireless voice adapting apparatus 10 includes a sound pickup apparatus 110, a main control apparatus 120 and an interface 130, where the main control apparatus 120 may further include a Pulse Code Modulation (PCM) device 121, a Digital Signal Processing (DSP) device 122, a wake-up unit 123 and a main controller 124; wherein, the pickup apparatus 110, the pulse code modulator 121, the digital signal processor 122, the main controller 124 and the interface 130 are sequentially connected, and the pickup apparatus 110 is further sequentially connected with the wake-up unit 123 and the main controller 124; interface 130 is used for data communication with loudspeaker 20.
Specifically, the input end of the pulse code modulator 121 is connected with the output end of the sound pickup device 110, and the output end of the pulse code modulator 121 is connected with the input end of the digital signal processor 122; the pulse code modulator 121 can convert a voice signal with continuous time and continuous values into a digital signal with discrete time and discrete values. The output of the digital signal processor 122 is connected to a main controller 124.
When the wireless speech adapter 10 is not in an operating state, for example, in a sleep state, it is in a speech wake-up mode by default. The wake-up unit 123 is configured to, when the wireless speech adapter 10 is in the speech wake-up mode, receive speech information through the sound pickup device 110, perform preliminary recognition on the speech information, obtain a recognition result, and send the recognition result to the main controller 124, specifically, the wake-up unit 123 may complete recognition on whether the speech information is a preset wake-up speech signal when obtaining the recognition result for speech recognition, and send the recognition result carrying information that the wake-up recognition is successful to the main controller 124 when recognizing that the speech information is the preset wake-up speech signal, and the main controller 124 may determine that the wake-up recognition is successful after receiving the recognition result, and then may switch the wireless speech adapter 10 to the speech control mode; if the wake-up unit 123 recognizes that the voice message is not a predetermined wake-up voice signal, it may not be necessary to send the voice message to the main controller 124. In addition, as an alternative embodiment, the identification result obtained by the wake-up unit 123 may also be an intermediate result of a preliminary identification conversion, and the wake-up unit 123 may forward the intermediate result to the main controller 124, and the main controller 124 further distinguishes the identification result to determine whether the identification result is a preset wake-up voice signal. In the embodiment of the application, the identification result obtained by the identification of the waking unit 123 carries the relevant information of the voice waking identification, and the main controller 124 can know whether the identification result is the preset waking voice signal from the relevant information. Since the voice recognition by the wake-up unit only needs to distinguish whether the voice is a wake-up signal, and does not need to recognize specific voice content, the accuracy of the voice recognition by the wake-up unit 123 may be lower, so that the voice recognition may be implemented by using components with lower power consumption, for example, the wake-up unit 123 may include a microprocessor and a memory, and does not need to use a high-power-consumption device such as a pulse code modulator, so that the power consumption of the wireless voice adaptation apparatus 10 may be effectively saved.
When the wireless speech adapter 10 is in the speech control mode, the speech information received by the sound pickup device 110 is forwarded to the pulse code modulator 121, processed by the pulse code modulator 121, and then forwarded to the digital signal processor 122. The dsp 122 is configured to perform decoding, synchronization, and variable sampling on the digital signal from the pulse code modulator 121, and the dsp 122 processes the digital signal from the pulse code modulator 121 and sends the processed digital signal to the main controller 124 for recognition and determination, and the main controller 124 may be configured with a recognition unit, so that the main controller 124 has a voice recognition function, and the main controller 124 performs corresponding operations according to the recognition and determination result.
Wherein the speaker 20 may have one or more interfaces 130, the speaker 20 may be a conventional speaker 20 without wireless communication function or voice function.
In one embodiment, in the case that the wireless speech adapter 10 is connected to the external sound box 20 through the interface 130, the sound pickup device 110 is configured to receive the speech information and send the received speech information to the wake-up unit 123 when the wireless speech adapter 10 is in the speech wake-up mode, and send the received speech information to the pulse code modulator 121 when the wireless speech adapter 10 is in the speech control mode; the wake-up unit 123 is configured to identify the received voice information and send an identification result to the main controller 124; the pulse code modulator 121 and the digital signal processor 122 are used for converting the received voice information into a digital signal recognizable by the main controller 124 and sending the digital signal to the main controller 124; the main controller 124 is used for controlling the wireless voice adapter 10 to switch to the voice control mode according to the received recognition result, and for performing recognition processing on the digital signal from the digital signal processor 122 and controlling audio playing of the sound box 20 according to the processing result of the digital signal.
The wireless voice adaptation device 10 of the above-mentioned embodiment of the present application, when connecting wireless voice adaptation device 10 to sound box 20 through interface 130 for use, gather user's speech information through pickup apparatus 110, and utilize and awaken the unit 123 to realize that the pronunciation of low-power consumption awakens up, after pronunciation awaken up the completion, utilize pulse code modulator 121, digital signal processor 122 and main control unit 124 handle the speech information of gathering, and output corresponding data message to sound box 20, through this wireless voice adaptation device 10, can various sound boxes 20 of adaptation connection, make traditional sound box 20 also can realize the audio playback of user's speech control sound box 20, the audio control efficiency of traditional sound box 20 has effectively been promoted. Compared with the existing intelligent voice sound box 20 on the market, the wireless voice adaptation device 10 of the application can have smaller preparation cost and volume and lower power consumption, the voice control of the intelligent voice sound box 20 can be realized by connecting the wireless voice adaptation device 10 with the sound box 20, and the intelligent voice sound box is easier to carry while saving cost.
In one embodiment, as shown in fig. 2, the wireless speech adapter 10 may further include a wireless communication device 140 and a protocol processor 125; the protocol processor 125 may be built in the main control device 120, wherein the wireless communication device 140, the protocol processor 125 and the digital signal processor 122 are connected in sequence; the wireless communication device 140 is used for wireless communication connection with the external terminal 30.
The wireless communication device 140 may include an antenna and a communication module, and the wireless communication device 140 is connected to the external terminal 30 through the antenna in a wireless communication manner. The wireless communication connection mode between the wireless speech adapter 10 and the external terminal 30 may include other wireless communication modes such as bluetooth, WIFI or 2.4G communication, and correspondingly, the communication module in the wireless speech adapter 10 may be a bluetooth component, a WIFI module or a WLAN component, etc.
The protocol processor 125 is configured to perform protocol processing on the signal from the wireless communication device 140 to divide the signal into corresponding protocol signals, where the protocol signals may include bluetooth signals or WLAN signals.
The external terminal 30 is an electronic device that can access the internet cloud, and the external terminal 30 may include an intelligent terminal device such as a mobile phone, a personal computer, a tablet computer, and a server. When receiving the data request from the wireless speech adapter 10, the external terminal 30 may call the stored audio information or download the audio information matching the data request from the cloud in a wireless downloading manner, and return the audio information to the wireless speech adapter 10.
In one embodiment, when the sound box 20 is connected to the wireless voice adaptation device 10 of the above embodiment, the sound pickup device 110 is configured to receive voice information and send the received voice information to the pulse code modulator 121 when the wireless voice adaptation device 10 is in the voice control mode; the pulse code modulator 121 and the digital signal processor 122 are used for converting the received voice information into a digital signal recognizable by the main controller 124 and transmitting the digital signal to the main controller 124; the protocol processor 125 is used for performing protocol signal conversion on the interactive data between the main controller 124 and the wireless communication device 140; the main controller 124 is used for performing identification processing on the received digital signal, and:
receiving audio information of the external terminal 30 from the wireless communication device 140 through the protocol processor 125 according to the processing result of the digital signal, and transmitting the audio information to the sound box 20 through the interface 130; the audio information is used to instruct the speaker 20 to play the audio information;
or
Scheduling data information preset by the wireless voice adaptation device according to the processing result of the digital signal, and transmitting the data information to the sound box 20 through the interface 130; the data information is used to instruct audio playback of loudspeaker 20.
The digital signal processor 122 decodes, synchronizes, and samples the digital signal from the protocol processor 125, and the main controller 124 further operates to generate a digital signal that can be transmitted through an interface 130 (e.g., a USB interface).
The wireless voice adaptation device 10 of the above embodiment implements wireless data intercommunication with the external terminal 30 through the built-in wireless communication device 140 and the protocol processor 125, so that audio data specified by the voice information can be retrieved from the external terminal 30 according to the voice information input by the user, and the retrieved audio data is sent to the sound box 20 for playing. So that the user can conveniently specify the playing content of the sound box 20 by voice.
The interface 130 of the wireless audio adapter 10 is used to connect to the speaker 20 for data communication with the speaker 20, and therefore, the interface 130 of the wireless audio adapter 10 needs to match with the type of the interface 130 carried by the speaker 20. In one embodiment, as shown in fig. 3, the interface 130 of the wireless voice adaptation apparatus 10 of the embodiment of the present application may include a USB interface, and accordingly, the main control apparatus 120 further includes a USB controller 126 connected between the main controller 124 and the USB interface, where the USB controller 126 is configured to perform format conversion on interactive data between the main controller 124 and the USB interface; the USB interface of the wireless audio adapter 10 is used for matching with the USB interface of the speaker 20. In addition to the USB interface, the interface 130 of the wireless voice adaptation device 10 may also include an SD interface, or other types of physical interfaces that can be adapted to the speaker 20.
In this embodiment, one or more types of physical interfaces are disposed in the interface 130 of the wireless audio adapter 10 to realize the adaptive connection with the sound box 20.
In one embodiment, as shown in fig. 3, the wireless voice adaptation device 10 further includes a key device 150, the key device 150 is connected to the main controller 124; the key device 150 is used for receiving key information of a user and transmitting the key information to the main controller 124; the main controller 124 is configured to perform identification processing on the received key information, and control the sound box 20 to perform corresponding operations through the interface 130 according to a processing result of the key information.
Specifically, the key device 150 may collect key information, send the key information to the main controller 124, convert the key information into recognizable data by the main controller 124, send the recognizable data to the protocol processor 125 for protocol signal conversion, or send the recognizable data to the speaker 20 for corresponding operations.
In this embodiment, the user can also press keys to output some conventional operation instructions through the key device 150 disposed on the wireless voice adaptation device 10, thereby improving the applicability of the wireless voice adaptation device 10.
In one embodiment, as shown in fig. 3, the wireless speech adapter 10 further comprises a display device 160, the display device 160 is connected to the main controller 124, and the display device 160 is used for displaying the operating status information of the wireless speech adapter 10.
In this embodiment, the user can intuitively know the operating state of the wireless speech adapter 10 through the display device 160 provided on the wireless speech adapter 10.
The present application further provides a wireless voice adaptation system, as shown in fig. 4, the system includes the wireless voice adaptation device 10 according to any of the above embodiments, further includes an external terminal 30 and a sound box 20; the external terminal 30 is connected to the wireless speech adapter 10 through the wireless communication device 140 in a wireless communication manner, and the wireless speech adapter 10 is in data communication with the sound box 20 through the interface 130.
In the wireless voice adaptation system, the wireless voice adaptation device 10 is internally provided with the pulse code modulator 121, the digital signal processor 122, the main controller 124, the sound pickup device 110 and the interface 130, the wireless voice adaptation device 10 can be connected with the sound box 20 for use through the interface 130, voice information of a user is collected through the sound pickup device 110 of the wireless voice adaptation device 10, voice information is recognized by using the wake-up unit 123 to wake up the voice information, the wireless voice adaptation device 10 is woken up, the voice information collected in the wake-up state is processed by using the pulse code modulator 121, the digital signal processor 122 and the main controller 124, data information of the wireless voice adaptation device or audio information of the external terminal 30 is called according to a processing result and is sent to the sound box 20 to realize voice control of audio playing of the sound box 20, and the wake-up voice information is recognized through the wake-up unit 123 which is independently arranged, the power consumption of voice awakening recognition is reduced, and the audio control efficiency of the traditional sound box 20 is effectively improved.
The present application further provides an audio playing control method applicable to the wireless speech adaptation apparatus 10 according to any of the above embodiments, as shown in fig. 5, including the following steps:
s510, the sound pickup device receives voice information and sends the received voice information to a wake-up unit when the wireless voice adaptation device is in a voice wake-up mode;
in this step, when the wireless voice adaptation device is in the voice wake-up mode and when the user sends a voice to the wireless voice adaptation device, the pickup device collects voice information corresponding to the voice and transmits the collected voice information to the wake-up unit.
S520, the awakening unit identifies the received voice information and sends an identification result to the main controller;
in this step, the wake-up unit identifies the received voice message, and specifically, the wake-up unit may identify whether the received voice message is a preset wake-up voice message. When the received voice information is distinguished to be the preset awakening voice information, the recognition result containing the preset awakening voice information is sent to the main controller, and when the received voice information is distinguished not to be the preset awakening voice information, the information can be selected not to be sent to the main controller, so that unnecessary energy loss is avoided. Of course, when it is determined that the received voice message is not the preset wake-up voice message, the wake-up unit may also select to send the recognition result containing the non-preset wake-up voice message to the main controller, so that the main controller performs a corresponding control prompting operation according to the recognition result of the wake-up recognition failure, and the like.
S530, when the received recognition result is a preset awakening voice signal, the main controller controls the wireless voice adaptation device to switch to a voice control mode;
in this step, when the main controller receives a recognition result which is sent by the awakening unit and contains a preset awakening voice signal, the wireless voice adapter device is controlled to be switched to a voice control mode;
s540, the sound pickup device receives the voice information and sends the received voice information to the pulse code modulator when the wireless voice adaptation device is in a voice control mode;
in the step, when the wireless voice adaptation device is in a voice control mode, the sound pickup device receives voice information and sends the received voice information to the pulse code modulator;
s550, the pulse code modulator converts the received voice information into a first digital signal and transmits the first digital signal to the digital signal processor;
the voice information collected by the sound pick-up device is an analog signal with continuous time and continuous values, and the pulse code modulator can convert the analog signal into a digital signal with discrete time and discrete values. In this step, the pulse code modulator converts the received voice information into a first digital signal with discrete time and discrete value, and transmits the first digital signal to the digital signal processor.
S560, the digital signal processor converts the first digital signal into a second digital signal which can be identified by the main controller and transmits the second digital signal to the main controller;
in this step, the digital signal processor performs decoding, synchronization, variable sampling, and other processing on the first digital signal, converts the first digital signal into a second digital signal required by the main controller for identification, and transmits the second digital signal to the main controller.
And S570, the main controller identifies the received second digital signal, and controls the audio playing of the loudspeaker box according to the processing result of the second digital signal.
In this step, the main controller calls the voice recognition data stored in the wireless voice adaptation device through the configured recognition unit, performs recognition processing on the received second digital signal, and controls audio playing of the sound box according to the processing result of the second digital signal.
The audio playing control method comprises the steps that through a pulse code modulator, a digital signal processor, a main controller, a sound pick-up device and an interface which are arranged in a wireless voice adaptation device, when the wireless voice adaptation device is in a voice wake-up mode, the sound pick-up device sends collected voice information of a user to a wake-up unit, the wake-up unit is used for completing identification operation of the wake-up voice information, the wake-up voice is identified through the independently arranged wake-up unit with low power consumption, the voice can be identified in a low power consumption mode when high-precision voice identification is not needed, the main controller controls the wireless voice adaptation device to be switched to a voice control mode when receiving an identification result of successful identification, and after the wake-up operation of the wireless voice adaptation device is completed, the voice information is identified and operated in a high-precision mode through the pulse code modulator, the digital signal processor and the main controller, therefore, the overall energy utilization rate of the wireless voice adaptation device can be improved, and the energy consumption of the wireless voice adaptation device is reduced. In addition, by the method, the wireless voice adaptation device can realize the audio playing of the traditional sound box under the condition of being connected with the traditional sound box by the voice of a user, and the audio control efficiency of the traditional sound box is effectively improved.
In one embodiment, as shown in fig. 6, the controlling, by the main controller in S570, the audio playing of the sound box according to the processing result of the second digital signal includes:
s571, the main controller identifies and judges whether the second digital signal is the preset voice control information; the voice control information comprises a first voice control instruction or a second voice control instruction;
s572, when the main controller judges that the second digital signal is a preset first voice control instruction, the main controller initiates a data acquisition request corresponding to the first voice control instruction to the external terminal through the digital signal processor, the protocol processor and the wireless communication device in sequence; the data acquisition request is used for indicating an external terminal to perform local query or cloud downloading on audio data corresponding to the data acquisition request and returning the audio data to the wireless communication device;
s573, the main controller receives the audio data returned by the external terminal through the wireless communication device, the protocol processor and the digital signal processor, and outputs the audio data to the sound box through the interface; the audio data is used for instructing the loudspeaker box to play the audio data.
S574, when the main controller judges that the second digital signal is a preset second voice control instruction, inquiring an audio control instruction corresponding to the second voice control instruction from self-stored data, and sending the audio control instruction to the sound box through an interface; the audio control instruction is used for instructing the sound box to regulate and control the audio playing parameters. Such as audio play or pause, fast forward or rewind, audio play volume size, and the like.
In this embodiment, the main controller can utilize the memory resource or the cloud downloading function of the external terminal according to the recognition result of the second digital signal, and the external terminal calls the required audio data and sends the audio data to the sound box for playing, so that the function that the user plays the designated audio data through the voice control sound box is realized. The main controller can also call self-stored data to control the playing parameters of the sound box according to the recognition result of the second digital signal, so that the user can control the parameters of the sound box, such as volume and the like, through voice.
In one embodiment, as shown in fig. 7, the S530 main controller controls the wireless voice adaptation apparatus to switch to the voice control mode when the received recognition result is the preset wake-up voice signal, including:
s531, when the received recognition result is a preset awakening voice signal, the main controller controls the wireless voice adaptation device to switch to a voice control mode and maintains the voice control mode for a preset time period;
s532, is the main controller receiving the second digital signal converted from the user' S voice information through the sound pickup device, the pulse code modulator, and the digital signal processor within a preset time period?
If yes, go to step S570;
if not, executing the following step S533;
s533, the main controller controls the wireless voice adaptation device to switch to a voice wake-up mode;
when the main controller is in a voice control mode, the main controller continuously monitors voice information of a user through the sound pickup device; when the main controller is in the voice wake-up mode, the main controller prohibits the operation of identifying and judging the voice control information.
In this embodiment, the main controller may be provided with two different modes, the main controller needs to wake up the wireless voice adapter device in the voice wake-up mode first, and then can receive the second digital signal containing the voice control information in the preset time period when the wireless voice adapter device is switched to the voice control mode after being wakened up, and recognize the second digital signal to execute the corresponding control operation, and after the wireless voice adapter device is not wakened up in the voice wake-up mode or is waken up overtime, the second digital signal containing the voice control information cannot be recognized and judged, so as to avoid the misoperation caused by the unconscious voice information recording recognition in the using process.
In one embodiment, the audio playback control method further includes: when the received recognition result is the preset awakening voice signal, the main controller controls the wireless voice adaptation device to be switched from the dormant state to the working state when the wireless voice adaptation device is in the dormant state.
In this embodiment, the wireless voice adapter can be kept in a dormant state when not working, and can be automatically switched to a working state when being awakened when needed, so that the power consumption of the wireless voice adapter can be saved.
In another embodiment, the audio playback control method further includes: when the received recognition result is the preset awakening voice signal, the main controller controls the sound box to reduce the volume to the preset volume range or suspend the audio output of the sound box through the interface when the wireless voice adapter device is in the working state.
In this embodiment, when the wireless voice adaptation device is in an operating state, the current sound box may be playing audio, and if a wake-up voice signal is received, the main controller controls the sound box to reduce the volume to a preset volume range or suspend audio output to the sound box through the interface, so as to reduce interference of audio playing on voice control information recording, and improve accuracy of subsequent voice control information identification and judgment.
In one embodiment, the audio playback control method further includes:
when the received recognition result is a preset awakening voice signal, the main controller reads the prestored awakening reply information corresponding to the awakening voice signal and sends the awakening reply information to the sound box through the interface; the wake-up reply message is used for instructing the sound box to play the wake-up reply message.
In this embodiment, the main controller controls the sound box to play the wake-up reply message after the wake-up is completed, so that the user can be prompted about the current use state of the wireless voice adaptation device, and the user can conveniently execute the required voice control operation according to the prompt.
In one embodiment, the data retrieval request is further used for instructing the external terminal to return null data to the wireless communication device when the audio data corresponding to the data retrieval request is not acquired by either local query or cloud download;
the audio playing control method further comprises the following steps:
the main controller receives data returned by the external terminal through the wireless communication device, the protocol processor and the digital signal processor; when the data is identified to be null data, the main controller outputs preset claim failure prompt information to the sound box through the interface, and the claim failure prompt information is used for indicating the sound box to broadcast voice information corresponding to the claim failure prompt information.
In this embodiment, when the main controller fails to request data from the external terminal, the null data is fed back to the wireless voice adaptation device, so that the main controller controls the sound box to broadcast voice information corresponding to the acquisition failure prompt information according to the received null data, and prompts a user that the audio data indicated by the voice is failed to be retrieved.
In order to make the technical scheme and technical effect of the audio control method of the embodiment of the present application clearer, the following illustrates the voice control process of the sound box by using the wireless voice adaptation device in two different situations, namely, the sleep state and the working state.
In case one, the implementation steps of the wireless voice adaptation device being powered on but in a dormant state are as follows:
the method comprises the following steps: the wireless voice adaptation device acquires a signal for waking up voice;
the wake-up voice may be 1 or more fixed voices capable of being recognized by the wireless voice adaptation device, such as: voice "kids", voice "wake up" or voice "dad call you", etc.
Step two: the wireless voice adapter is matched with the sound box to play the first reply voice;
the first reply voice is the reply voice given by the wireless voice adapting device after the awakening voice is analyzed by the wireless voice adapting device to meet the recognition condition; the reply voice may be a voice fixedly stored in the wireless voice adaptation apparatus, and when the reply voice is played, a combination of 1 or more pieces may be played, such as: the voice "hello", the voice "hello, i am here", etc.
Step three: the wireless voice adaptation device acquires a signal for controlling voice;
the control voice is obtained after the wireless voice adaptation device confirms that the awakening voice meets the recognition condition or meets the recognition condition and broadcasts the reply voice; in a certain time, when the wireless voice adaptation device identifies the awakening voice signal, the wireless voice adaptation device can identify the voice control signal; the certain time may be, for example, 5 to 7 s; after the certain time, the wireless voice adaptation device (2) needs to be awakened again to be able to recognize the voice control signal.
Step four: the wireless voice adapting device is matched with the sound box to give a second reply voice and execute corresponding operation or broadcast corresponding music;
the second reply voice, including the signal that the wireless voice adaptation device recognized or did not recognize the control voice, and the voice played by the sound box, includes: the voice is "good", "no problem", the voice "i don't know what you say", etc.; after the control voice signal is recognized, the wireless voice adaptation device can call out the music song of the external terminal, so that the music song can be played in the sound box, or the control voice can realize the function operation of controlling the sound box, such as: sleep, volume adjustment, etc.
In case two, the implementation steps of the wireless voice adaptation device which is powered on but in the working state are as follows:
the method comprises the following steps: the wireless voice adaptation device acquires a signal for waking up voice;
the wake-up voice may be 1 or more fixed voices capable of being recognized by the wireless voice adaptation device, such as: voice "kids", voice "wake up" or voice "dad call you", etc.
Step two: the wireless voice adapter is matched with the sound box to pause music playing or turn down volume playing and play first reply voice;
when the wireless voice adaptation device identifies the awakening voice signal, in order to better identify the upcoming control voice signal, the playing music is firstly paused or the volume is turned down to a range capable of identifying the control voice signal; the first reply voice is the reply voice given by the wireless voice adapting device after the awakening voice is analyzed by the wireless voice adapting device to meet the recognition condition; the reply voice may be a voice fixedly set in the wireless voice adaptation apparatus, and when the reply voice is played, a combination of 1 or more pieces may be played, such as: the voice "hello", the voice "hello, i am here", etc.
Step three: the wireless voice adaptation device acquires a signal for controlling voice;
the control voice is obtained after the wireless voice adaptation device confirms that the awakening voice meets the recognition condition or meets the recognition condition and broadcasts the reply voice; in a certain time, when the wireless voice adaptation device identifies the awakening voice signal, the wireless voice adaptation device can identify the voice control signal; after the certain time, the wireless voice adapter needs to be awakened again to be able to recognize the voice control signal.
Step four: the wireless voice adapting device is matched with the sound box to give a second reply voice and execute corresponding operation or broadcast corresponding music;
the second reply voice, including the signal that the wireless voice adaptation device recognized or did not recognize the control voice, and the voice played by the sound box, includes: the voice is "good", "no problem", the voice "i don't know what you say", etc.; after the control voice signal is recognized, the wireless voice adaptation device can call out the music song of the external terminal, so that the music song can be played in the sound box, or the control voice can realize the function operation of controlling the sound box, such as: sleep, volume adjustment, etc.
It should be understood that although the various steps in the flowcharts of fig. 5-7 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least some of the steps in fig. 5-7 may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performance of the sub-steps or stages is not necessarily sequential, but may be performed in turn or alternating with other steps or at least some of the sub-steps or stages of other steps.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (12)

1. A wireless voice adaptation device is characterized by comprising a pickup device, a main control device and an interface; the main control device comprises a pulse code modulator, a digital signal processor, a wake-up unit and a main controller;
the pickup device, the pulse code modulator, the digital signal processor, the main controller and the interface are sequentially connected, and the pickup device is further sequentially connected with the awakening unit and the main controller;
the interface is used for data intercommunication with the sound box;
the pickup device is used for receiving voice information and sending the received voice information to the awakening unit when the wireless voice adaptation device is in a voice awakening mode, and sending the received voice information to the pulse code modulator when the wireless voice adaptation device is in a voice control mode;
the awakening unit is used for carrying out primary identification on the received voice information and sending an intermediate result obtained by the primary identification to the main controller; the wake-up unit comprises a microprocessor and a memory;
the pulse code modulator is used for converting the received voice information into a first digital signal and transmitting the first digital signal to the digital signal processor;
the digital signal processor is used for converting the first digital signal into a second digital signal which can be identified by the main controller and transmitting the second digital signal to the main controller;
the main controller is used for further identifying according to the received intermediate result, controlling the wireless voice adapter device to switch to a voice control mode when the identification result is a preset awakening voice signal, and maintaining the wireless voice adapter device in the voice control mode for a preset time period;
the main controller is further used for controlling the wireless voice adaptation device to switch to a voice wake-up mode when the second digital signal is not received within the preset time period; when the second digital signal is received in the preset time period, the received second digital signal is identified and processed, and the audio playing of the sound box is controlled according to the processing result of the second digital signal;
the main controller is also used for controlling the wireless voice adaptation device to be switched from the dormant state to the working state when the recognition result is a preset awakening voice signal when the wireless voice adaptation device is in the dormant state; when the wireless voice adapter device is in a working state and the recognition result is a preset awakening voice signal, the sound box is controlled by the interface to reduce the volume to a preset volume range or pause the audio output of the sound box.
2. The wireless voice adaptation device of claim 1, further comprising a wireless communication device and a protocol processor;
the wireless communication device, the protocol processor and the digital signal processor are connected in sequence;
the wireless communication device is used for being in wireless communication connection with an external terminal.
3. The wireless voice adaptation device according to claim 2, wherein the protocol processor is configured to perform protocol signal conversion on the interaction data between the main controller and the wireless communication device;
the main controller is used for identifying and processing the received second digital signal, receiving audio information of an external terminal from a wireless communication device through the protocol processor according to a processing result of the second digital signal, and transmitting the audio information to a sound box through the interface, wherein the audio information is used for indicating the sound box to play the audio information; or
The main controller is used for identifying and processing the received second digital signal, scheduling preset data information in the wireless voice adaptation device according to the processing result of the second digital signal, and transmitting the data information to the sound box through the interface, wherein the data information is used for indicating the audio playing of the sound box.
4. The wireless voice adapter according to claim 1, wherein the interface comprises a USB interface, the main control device further comprises a USB controller connected between the main controller and the USB interface, and the USB controller is configured to perform format conversion on interactive data between the main controller and the USB interface;
the USB interface of the wireless voice adapter device is used for being connected with the USB interface of the sound box in a matching mode.
5. The wireless voice adaptation device according to any one of claims 1 to 4, further comprising a key device, wherein the key device is connected with the main controller;
the key device is used for receiving key information of a user and transmitting the key information to the main controller;
the main controller is used for identifying and processing the received key information and controlling the sound box to execute corresponding operation through the interface according to the processing result of the key information.
6. The wireless voice adaptation device according to any one of claims 1 to 4, further comprising a display device, wherein the display device is connected with the main controller, and the display device is used for displaying the operating state information of the wireless voice adaptation device.
7. A wireless voice adaptation system, comprising the wireless voice adaptation device of any one of claims 1 to 6, further comprising an external terminal and a sound box;
the external terminal is in wireless communication connection with the wireless voice adaptation device through the wireless communication device, and the wireless voice adaptation device is in data intercommunication with the loudspeaker box through the interface.
8. An audio playing control method based on the wireless voice adaptation device of any claim 1 to 6, characterized by comprising:
the pickup device receives voice information and sends the received voice information to the awakening unit when the wireless voice adaptation device is in a voice awakening mode;
the awakening unit carries out primary identification on the received voice information and sends an intermediate result obtained by the primary identification to the main controller;
the main controller further identifies according to the received intermediate result, and controls the wireless voice adapter to switch to a voice control mode and maintain the wireless voice adapter in the voice control mode for a preset time period when the identification result is a preset awakening voice signal; when the recognition result is a preset awakening voice signal, if the wireless voice adaptation device is in a working state, controlling the wireless voice adaptation device to be switched from a dormant state to the working state, and if the weak wireless voice adaptation device is in the working state, controlling the sound box to reduce the volume to be within a preset volume range or suspending audio output of the sound box through an interface;
the sound pickup device receives voice information and sends the received voice information to the pulse code modulator when the wireless voice adaptation device is in a voice control mode;
the pulse code modulator converts the received voice information into a first digital signal and transmits the first digital signal to a digital signal processor;
the digital signal processor converts the first digital signal into a second digital signal which can be identified by a main controller and transmits the second digital signal to the main controller;
when the main controller does not receive the second digital signal within the preset time period, the main controller controls the wireless voice adaptation device to switch to a voice wake-up mode;
and when the main controller receives the second digital signal in the preset time period, the main controller identifies and processes the received second digital signal, and controls the audio playing of the sound box according to the processing result of the second digital signal.
9. The audio playback control method of claim 8, wherein the controlling, by the master controller, the audio playback of the speaker according to the processing result of the second digital signal comprises:
the main controller identifies and judges whether the second digital signal is preset voice control information or not; the voice control information comprises a first voice control instruction or a second voice control instruction;
when the main controller judges that the second digital signal is a preset first voice control instruction, a data acquisition request corresponding to the first voice control instruction is initiated to an external terminal through a digital signal processor, a protocol processor and a wireless communication device in sequence; the data acquisition request is used for indicating the external terminal to locally inquire or download audio data corresponding to the data acquisition request through a cloud end and returning the audio data to the wireless communication device; the main controller receives audio data returned by the external terminal through the wireless communication device, the protocol processor and the digital signal processor, and outputs the audio data to the sound box through an interface; the audio data is used for instructing the sound box to play the audio data;
when the main controller judges that the second digital signal is a preset second voice control instruction, inquiring an audio control instruction corresponding to the second voice control instruction from self-stored data, and sending the audio control instruction to a sound box through an interface; the audio control instruction is used for indicating the sound box to regulate and control the audio playing parameters of the sound box.
10. The audio playback control method according to claim 9, wherein when the main controller is in the voice control mode, the main controller continuously monitors voice information of a user through the sound pickup device; and when the main controller is in a voice awakening mode, the main controller forbids the recognition and judgment operation of the voice control information.
11. The audio playback control method according to claim 9 or 10, further comprising:
when the recognition result is a preset awakening voice signal, the main controller reads the prestored awakening reply information corresponding to the awakening voice signal and sends the awakening reply information to the sound box through an interface; the awakening reply information is used for indicating the sound box to play the awakening reply information.
12. The audio playing control method according to claim 9 or 10, wherein the data request is further configured to instruct the external terminal to return null data to the wireless communication device when no audio data corresponding to the data request is acquired by local query or cloud download;
the method further comprises the following steps:
the main controller receives data returned by the external terminal through the wireless communication device, the protocol processor and the digital signal processor;
when the data are identified to be null data, the main controller outputs preset claim failure prompt information to the sound box through the interface, wherein the claim failure prompt information is used for indicating the sound box to broadcast voice information corresponding to the claim failure prompt information.
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