Product
Eureka
For R&D, Eureka makes reading and utilizing patents & technical documents easy.
Eureka AIR
Designed for self-driven R&D workflows. Generate viable solutions, solve complex R&D challenges, empower your innovation with AI.
Eureka Materials
Designed for material experts only. Revolutionize your material R&D, from search, analyze, to developing new materials.
Feature
TechResearch
Generate reliable direction feasibility study reports for your R&D in just a few steps.
TechSeek
Discover and master advanced knowledge NOW. Basics, ideas, possibilities, all at once.
TechMind
As an expert in R&D Theories, TechMind can generates customized viable solutions instantly.
TechRisk
Analyze your overall solution with one click, know your potential R&D risks in advance.
TechMonitor
Get weekly tech updates, stay abreast of the latest tech innovations and key insights.
Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
82results about How to "Reduce false wake-up rate" patented technology
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
Voice wake-up method and apparatus, terminal, and processing method thereof
InactiveCN105575395AIncrease wake rateImprove experienceSpeech recognitionSleep stateWord identification
The invention discloses a voice wake-up method and apparatus, a terminal, and a processing method thereof. The voice wake-up method comprises: a wake-up word voice signal sent out by a terminal user is collected and a wake-up word identification result and a vocal print feature of the wake-up word voice signal are obtained and stored; when a terminal is in a sleep state, a voice signal inputted externally is detected; a voice identification result and a vocal print feature of the voice signal are obtained; the voice identification result and the stored wake-up word identification result as well as a matching result of the vocal print feature and the stored vocal print feature are obtained; and according to the matching result, whether the terminal needs to be woken up is determined; and if so, the terminal is woken up. With the method, technical problems of low user wake-up rate, high wrong wake-up rate, and poor user experience according to the existing voice wake-up technology are solved.
Owner:ZTE CORP
Wake-up word preset confidence threshold adjustment method and system
ActiveCN108847219AIncrease wake rateReduce false wake-up rateSpeech recognitionSimulationOperations research
The invention discloses a wake-up word preset confidence threshold adjustment method and system. The method comprises steps that S11, daily use behavior data of a user is obtained; S12, the wake-up word preset confidence threshold is adjusted according to the daily use behavior data. The method is advantaged in that the wake-up word preset confidence threshold is dynamically set and adjusted through acquiring the daily usage behavior data of the user, personal use characteristics of the user are fully considered, firstly, whether the preset confidence threshold is lowered overall is determinedthrough the daily behavior confidence average value of the user, the preset confidence threshold is further adjusted based on the use number for each time period, the device wake-up rate is effectively improved, and the false wake-up rate is reduced.
Owner:湖州帷幄知识产权运营有限公司
Differential-training-based voice wake-up customization optimization method and system
ActiveCN107123417ALess search computationSequence level modeling is goodSpeech recognitionForward propagationAcoustic model
The invention relates to a differential-training-based voice wake-up customization optimization method and system. After acoustic data with marks are given, neural network forward propagation is carried out by combining an initial neural-network-based acoustic model; a modeling probability for wake-up word marking is obtained by combining a marking sequence and a frame-by-frame acoustic probability; statistics is carried out on lots of texts to obtain a phoneme-level language model and a corresponding searching network is constructed; wake-up word competition item modeling is carried out based on the searching space of the phoneme-level language model and a frame-by-frame acoustic model, thereby obtaining a posterior probability; differential training of the acoustic model is carried out by combining the wake-up word competition item modeling and the wake-up word marking modeling; and the acoustic model obtained by the differential training determines whether to carry out a wake-up operation by comparison of a wake-up word confidence coefficient with an automatic estimation threshold value.
Owner:AISPEECH CO LTD
Voice wake-up method and voice interaction device
InactiveCN106653031AReduce false wake-up rateLow costSpeech recognitionInteraction deviceSpeech identification
The embodiment of the invention provides a voice wake-up method and a voice interaction method. The voice wake-up method comprises the steps of receiving a voice input signal; determining the similarity of the voice input signal and a preset wake-up voice signal exceeds a first preset threshold or not; if so, sending the voice input signal to a cloud server so as to enable the cloud server to perform voice recognition on the voice input signal and return a recognition result; receiving the recognition result which is returned by the cloud server and corresponds to the voice input signal; determining whether the similarity of the recognition result and the preset wake-up voice signal exceeds a second preset threshold or not, wherein the second preset threshold is greater than the first preset threshold; and if so, waking up a voice interaction function. The voice wake-up method and the voice interaction method provided by the embodiment of the invention can give consideration to the requirements of low power consumption and low error wake-up rate.
Owner:HISENSE
Voice wake-up method and device
ActiveCN105869637ASmall scaleSolve the problem of full networkSpeech recognitionSpeech identificationSpeech sound
The invention discloses a voice wake-up method and device. The voice wake-up method comprises steps as follows: acquiring a to-be-processed voice signal; decoding the voice signal according to a pre-generated searching space to obtain a voice recognition result, wherein the searching space comprises a path where an inverse model is located, and the inverse model comprises a first inverse model body generated by training word segmentation results of wake-up words; judging whether the preset number of characters contains at least part of characters in the wake-up words when the preset number of first characters in the voice recognition result is obtained: directly determining cancellation of wake-up operation if at least part of characters in the wake-up words are not contained, and ending decoding of the voice signal. The method has the advantages that the mistaken wake-up rate can be reduced, power consumption can be reduced, and the like.
Owner:BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD
Voice-triggered device, method, and computer readable storage medium
InactiveCN109036428ATroubleshoot wake-up power issuesImprove experiencePower managementSpeech recognitionRecognition algorithmComputer module
The invention belongs to the voice trigging field, and discloses a voice-triggered device, method, and a computer readable storage medium; the voice-triggered device comprises a first level waking unit and a main control unit; the first level waking unit comprises the following parts: a voice obtaining module used for obtaining inputted voice information; a first level waking chip used for using afirst level waking voice identification algorithm to identify the voice information, and sending the voice information to the main control unit if the identification result contains a preset waking word; a first connecting interface connected with the main control unit. The main control unit comprises a second connecting interface connected with the first level waking unit, and a second level waking chip used for receiving the voice information, using a second level waking voice identification algorithm to identify the voice information, and determining the waking is finished when the identification result contains the preset waking word; the main control unit then enters a state that waits a voice operation order. The method and device can solve the waking power consumption problems, canreduce the wrong waking rate, and can improve the user experiences.
Owner:GUANGDONG XIAOTIANCAI TECH CO LTD
Terminal equipment standby wake-up method and device, and computer equipment
ActiveCN107610702APower onReduce the cost of trainingSpeech recognitionElectricityTerminal equipment
The invention provides a terminal equipment standby wake-up method and device, and computer equipment. The method comprises steps of collecting a voice signal of a user of a terminal device and storing them in real time when the terminal device is in a standby state; inputting the voice signal into a wake-up word recognition engine for identification, and obtaining a recognition result, wherein the wake-up word recognition engine stores a recognition model library file of the latest version downloaded from a cloud server when the terminal device is powered on; and when the wake-up word is included in the recognition result, triggering an interrupt signal to wake up the terminal device, so that the terminal device is powered on; and after the terminal device is powered on, reporting the voice signal to enable the cloud server to perform training on a recognition model according to the voice signal, and generating an updated version of the recognition model library file, so that according to the correct wakeup or wrong wakeup voice signal reported by the terminal device, the recognition model is trained, the training cost of the recognition model is reduced, the training efficiency of the recognition model is improved, and the false wake-up rate of the recognition model are effectively reduced.
Owner:BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD
Far field voice awakening method and equipment
ActiveCN107464565AImprove experienceReduce false wake-up rateSpeech recognitionSpeech soundMicrophone array
The embodiment of the invention discloses a far field voice awakening method and equipment, wherein the far field voice awakening method comprises the following steps: a front end audio signal processing chip acquires at least one voice signal in multiple voice signals picked up by a microphone array and determines whether the least one voice signal is a voice awakening signal or not; a primary processor acquires at least two voice signals in the multiple voice signals and determines whether the at least two voice signals are voice awakening signals or not according to a multiple voice awakening and recognizing model; and if the least one voice signal is the voice awakening signal and the at least two voice signals are voice awakening signals, the primary processor controls to execute an awakening operation. Based on the front end audio processing chip and the primary processor, the voice awakening signals are recognized twice for the multiple voice signals picked up by the microphone array, so that the mistaken awakening rate is reduced greatly and the user experience is enhanced.
Owner:BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD
Voice wakeup method, device and system
ActiveCN109410952AWake up accurately and efficientlyReduce false wake-up rateSpeech recognitionLocation information based serviceSpeech soundControl logic
The embodiment of the invention discloses a voice wakeup method. The voice wakeup method comprises the following steps: S101, judging that whether the preset conditions are satisfied or not, if so, carrying out step 103, otherwise, carrying out step 105; S103, activating the operation of waking up voice control logic without a wake-up word; and S105, not activating the operation of waking up voicecontrol logic without the wake-up word. Through the voice wakeup method, the flow of voice interaction between a user and the voice control logic can be simplified, so that the voice interaction is more convenient and rapid, more humanized and more intelligent, the voice interaction efficiency is improved, and the experience degree of the user is improved.
Owner:BEIJING MORAN COGNITIVE TECH CO LTD
Voice awakening optimization method based on cascade DNN
InactiveCN109887511AImprove environmental adaptabilityReduce corpusSpeech analysisFeature extractionAcoustic model
The invention discloses a voice awakening optimization method based on cascade DNN. The method comprises the steps that 1, a voice signal is acquired by a microphone in real time, and feature extraction is conducted to obtain frame-by-frame acoustic features of the real-time voice signal; 2, an acoustic feature sequence is intercepted according to a fixed window length to form a frame serving as first-stage DNN input; 3, forward process calculation of a first-stage DNN acoustic model is carried out, and the acoustic posterior probability of frame-by-frame phonemes is obtained through output; 4, first-stage DNN output is intercepted according to the fixed window length to form a one-frame phoneme posterior probability sequence to serve as second-stage DNN input; 5, second-stage DNN forwardprocess calculation is carried out for judgment, and whether awakening is carried out or not is output. The anti-noise capability of the DNN can be utilized to the maximum extent, the environmental adaptability is high, and the situation that a VAD is manufactured first and then awakening detection is carried out is not needed; a voice background does not need to be independently modeled; the twostages of models can be complementary, so that corpora required by training can be greatly reduced; no language model is generated, and text corpora are not needed.
Owner:武汉水象电子科技有限公司
Voice awakening performance improvement method and device
ActiveCN110473539ASuppress false wakeupQuick pick upSpeech recognitionNeural network learningFalse awakening
The invention discloses a voice awakening performance improvement method and device. The voice awakening performance improvement method comprises the following steps of detecting an input signal in avoice frame form, and judging whether the voice frame is a suspected voice frame or a non-voice frame; determining an effective voice segment based on the determined suspected voice frame and the non-voice frame, and determining a weighting factor based on the ratio of the suspected voice frame and the non-voice frame in the input signal; inputting the effective voice section into an awakening model, wherein the awakening model is a multi-classification model obtained after supervised depth neural network learning is carried out on collected awakening word positive example samples and non-awakening word negative example samples; and acquiring the output of the adaptive awakening model, carrying out weighted calculation on the output by using the weighting factor, and determining whether the equipment is awakened or not based on output after weighing calculation. According to the scheme provided by the invention, the false awakening rate of a noise scene can be effectively inhibited, and further, the awakening rate for a specific user can be improved in a targeted manner.
Owner:AISPEECH CO LTD
Voice wake-up method, device and system
ActiveCN111091828AReduce false wake-up rateImprove experienceDigital data processing detailsSpeech recognitionSound sourcesAcoustic energy
The invention relates to a voice wake-up method. The method comprises the steps: receiving a plurality of voice wake-up messages sent by a plurality of electronic devices, wherein each voice wake-up message comprises a distance and a wake-up energy value, the distance represents the distance between the electronic devices sending the voice wake-up messages and a sound source, and the wake-up energy value represents the energy value of a wake-up word sent by the sound source and received by the electronic devices sending the voice wake-up messages; according to the distances and the wake-up energy values in the plurality of voice wake-up messages of the plurality of electronic devices, determining whether the energy attenuation of the wake-up word emitted by the sound source conforms to theattenuation rule of the sound energy radiated by a point sound source; and when it is determined that the energy attenuation of the wake-up word emitted by the sound source does not accord with the attenuation rule of the sound energy radiated by the point sound source, sending a wake-up forbidding instruction to the plurality of electronic devices. According to the scheme provided by the invention, the false awakening rate of the device can be reduced.
Owner:HUAWEI TECH CO LTD
Voice equipment control method, device and equipment
PendingCN111816178AIncrease wake rateDecrease the wake-up thresholdSpeech recognitionTelecommunicationsSpeech sound
The invention provides voice equipment and a control method, device and equipment thereof, and a storage medium. The method comprises the following steps of acquiring wake-up failure frequency of thevoice equipment in a preset time period, if the wake-up failure frequency is greater than or equal to a first preset frequency, reducing a wake-up threshold corresponding to wake-up information of thevoice equipment, if the wake-up failure frequency is smaller than or equal to a second preset frequency, increasing a wake-up threshold corresponding to wake-up information of the voice equipment, and if the wake-up failure frequency is less than the first preset frequency and greater than the second preset frequency, maintaining a wake-up threshold corresponding to wake-up information of the voice equipment, thereby realizing automatic adjustment of the wake-up threshold of the voice equipment in any usage scenario of the user and in the speaking volume of the user habit. By adopting the technical scheme of the invention, the wake-up rate of the voice equipment can be improved at a relatively low false wake-up rate.
Owner:BEIJING UNISOUND INFORMATION TECH +1
Voice interaction device awakening method, device, equipment and storage medium
The embodiment of the invention provides a voice interaction device awakening method, a device, equipment and a storage medium. The method includes the following steps: collecting a voice signal; extracting first voiceprint features of the voice signal; comparing the first voiceprint features with pre-stored reference voiceprint features; judging whether the content of the voice signal contains anawakening word by using an awakening word recognition model when the comparison results are consistent, and awakening the voice interaction device if the content of the voice signal contains the awakening word. By the embodiment of the invention, awakening error rate of the voice interaction device can be reduced.
Owner:BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD +1
Customized voice wake-up optimization method and system based on discriminative training
ActiveCN107123417BLess search computationSequence level modeling is goodSpeech recognitionSimulationAcoustic model
Owner:AISPEECH CO LTD
Two-stage wakeup method and two-stage wakeup device applied to ambiguity path recognition system
ActiveCN105392189AReduce false wake-up rateReduce power consumptionPower managementSubstation remote connection/disconnectionAmbiguityComputer module
A two-stage wakeup method and a two-stage wakeup device applied to an ambiguity path recognition system are disclosed. The method comprises the following steps: a timed wakeup control module sends a first cycle enable signal to a radio-frequency module; the radio-frequency module receives an external wakeup signal and sends a characterization signal of the external wakeup signal to the timed wakeup control module within the interception time of the first cycle enable signal; when determining that the characterization signal meets a first threshold condition, the timed wakeup control module stops sending the first cycle enable signal, and sends a second cycle enable signal to the radio-frequency module; the radio-frequency module sends the characterization signal of the received external wakeup signal to the timed wakeup control module within the interception time of the second cycle enable signal; and the timed wakeup control module outputs an internal wakeup signal to a system control module when determining that the characterization signal meets a second threshold condition. By adopting the method, the power consumption of the system is reduced greatly. In addition, the device of the invention can achieve all the beneficial effects of the method.
Owner:斯凯瑞利(北京)科技有限公司
Speech recognition method, awakening word detection method and device
ActiveCN110444210AEasy to detectReduce false wake-up rateSpeech recognitionFeature vectorTerminal equipment
Owner:TENCENT TECH (SHENZHEN) CO LTD
Speech recognition method and wake-up word detection method and device
ActiveCN109192210AEasy to detectReduce false wake-up rateSpeech recognitionFeature vectorFalse awakening
The invention discloses a wake-up word detection method, which comprises the following steps: obtaining speech information to be recognized, wherein the speech information to be recognized comprises atarget word set, the target word set is composed of at least two groups of repetitive target words, and each group of target words comprises at least one target word; acquiring a target speech feature vector according to the speech information to be recognized; using the speech recognition model for outputting the probability scores corresponding to each word in the speech information, wherein the target probability scores set includes the target probability scores corresponding to each target word. If the target probability score set satisfies the speech awakening condition, it is determinedthat the speech information to be recognized includes a target awakening word, and the target awakening word belongs to one awakening word in the awakening word set. The invention discloses a wake-upword detecting device and a terminal device. The invention improves the detection performance of the reduplicated awakening word, and has high awakening rate and low false awakening rate.
Owner:TENCENT TECH (SHENZHEN) CO LTD
Voice activity detection method, noise inhibition method and noise inhibition system
InactiveCN109920451AImprove accuracyImprove claritySpeech analysisCorrelation coefficientTime domain
The invention provides a voice activity detection method, which comprises the following steps of obtaining voice signals collected by a microphone and vibration signals collected by a sensor; converting the voice signals from a time domain to a frequency domain; converting the vibration signals from the time domain to the frequency domain; calculating the frequency domain correlation coefficient by using the voice signal and the vibration signals; calculating the detection quantity in the detection frequency range; when the detection quantity is higher than a preset threshold value, judging the voice signals collected by the microphone to be speaking voice of a wearer; otherwise, judging the voice signals collected by the microphone to have noise or interference signals. By calculating thefrequency domain correlation coefficient, the detection quantity is calculated in the detection frequency range, the voice activity detection accuracy is improved; the noise inhibition definition andthe intelligibility of the noise inhibition are improved.
Owner:BESTECHNIC SHANGHAI CO LTD
Intelligent equipment awakening method and device and electronic equipment
ActiveCN111968644AUse habit matchingReduce false wake-up rateSpeech recognitionComputer scienceIntelligent equipment
The invention discloses an intelligent equipment awakening method and device and electronic equipment, and relates to the technical field of intelligent equipment. The method comprises the steps of: when instruction voice is received, determining a standard wake-up threshold value in the current time period and a target user corresponding to the instruction voice, obtaining the target use frequency of the target user for the intelligent equipment in the current time period, obtaining a target wake-up threshold value corresponding to the target use frequency in the current time period, and if the standard wake-up threshold value is different from the target wake-up threshold value, updating the wake-up threshold value of the intelligent equipment in the current time period from the standardwake-up threshold value to the target wake-up threshold value, identifying instruction voice based on the updated wake-up threshold value, and executing awakening operation on the intelligent equipment. Thus, the wake-up threshold of the intelligent equipment in different time periods can be dynamically adjusted, the wake-up rate of the intelligent equipment is improved, and the false wake-up rate is reduced.
Owner:SHENZHEN OURUIBO ELECTRONICS
Training method and device of wake-up model and computer equipment
ActiveCN112365885AReduce false wake-up rateImprove the ability to distinguishSpeech recognitionComputer deviceEngineering
The invention relates to the field of artificial intelligence, and discloses a wake-up model training method. The method comprises the steps of extracting audio frames from specified voice statementsin a training set to obtain an acoustic feature matrix; inputting the acoustic feature matrix into a keyword detector of a first model to obtain a first spatial feature, inputting the acoustic featurematrix into an encoder of a second model to obtain a second spatial feature, the first model being a wake-up model to be trained, and the second model being a trained noise reduction model; calculating the difference between the spatial features of the first spatial feature and the second spatial feature; according to the calculation mode of the difference of the spatial features corresponding tothe specified voice statement, calculating the difference of the spatial features corresponding to all voice statements in the training set; and forming a loss function training wake-up model for training the wake-up model according to the differences of the spatial features corresponding to all the voice sentences and the preset cross entropy loss of the wake-up model. And the feature vector ofthe high-dimensional space is used as a knowledge distillation sample to assist in training a wake-up model, so that the wake-up effect is improved.
Owner:深圳市友杰智新科技有限公司
Wake-up threshold setting method and device, intelligent loudspeaker box and storage medium
The invention discloses a wake-up threshold setting method and device, an intelligent loudspeaker box and a storage medium. According to the method, the probability that a user sound signal appears ineach preset sound source angle area is counted; and a wake-up threshold of each preset sound source angle area is determined according to a preset wake-up threshold and the probability that the usersound signal appears in each preset sound source angle area. A voice interactive device is generally placed at a fixed location in the home, the user sound signal generally appears in certain fixed angle areas, and the wake-up threshold is adjusted according to the probability that the user sound signal appears in each preset sound source angle area, so that the wake-up threshold of the angle areawith the relatively high probability that the user sound signal appears is low, the wake-up threshold of the angle area with the relatively low probability that the user sound signal appears is high,the wake-up threshold of the user sound signal is reduced, the wake-up threshold of a non-user sound signal is improved, the relatively high wake-up rate and the relatively low false wake-up rate areconsidered, and the user experience is improved.
Owner:星络智能科技有限公司
Wake-up model updating method and device
ActiveCN109753665AReduce false wake-up rateGuaranteed quantityMultimedia data queryingProgram loading/initiatingFalse awakeningAlgorithm
The invention provides a wake-up model updating method. The method comprises the following steps of: separating a command word and a wake-up word in original voice data; determining the probability ofcommand words according to the language model, and deleting the command words with the probability lower than a first threshold value in the command words; and inputting the wake-up word into a wake-up model, determining a score output by the wake-up model, and deleting the wake-up word with the score lower than a second threshold value in the wake-up word. Therefore, the built wake-up model withhigher false wake-up probability is updated, command words and wake-up words are screened respectively, and the wake-up words are closer to preset wake-up words by eliminating false wake-up data or distortion data. Meanwhile, the command words serve as training data, the number of the training data is guaranteed, and the false awakening probability of the updated awakening model is lower.
Owner:SOUNDAI TECH CO LTD
Voice interruption wake-up method and device and computer readable storage medium
ActiveCN112311635AImprove interrupt wake-up effectImprove experienceSpeech recognitionHigh level techniquesTelecommunicationsSpeech sound
The invention provides a voice interruption wake-up method and device and a computer readable storage medium. The voice interruption wake-up method is applied to an MCU of a voice electronic device. The method comprises the following steps: obtaining a state parameter and an environment parameter of the current voice electronic device, and the environment parameter comprises external voice data; wherein the state parameters comprise a networking state; executing preset response setting based on the acquired state parameters and the environment parameters; and identifying and analyzing the external voice data, and if identifying and analyzing that the external voice data contains a preset wake-up word, controlling to wake up own voice interaction service. The voice interruption wake-up method is applied to the MCU of the voice electronic device, the interruption wake-up effect of an MCU small system is improved by obtaining the networking state and the voice data and adjusting accordingto the networking state, so that the high wake-up success rate is guaranteed, the false wake-up rate is reduced, and the user experience is improved.
Owner:SHENZHEN ZHIDAGU TECH
Voice wake-up system based on environment detection
InactiveCN109920420AReduce false wake-up rateImprove experienceMeasurement devicesSpeech recognitionElectricitySpeech sound
The invention discloses a voice wake-up system based on environment detection. The system comprises an environment detection module, a wake-up module and a comprehensive judgment module, wherein the environment detection module and the wake-up module are electrically connected with the comprehensive judgment module respectively; the environment detection module is used for detecting the ambient environment; the wake-up module is used for recognizing a voice signal received by intelligent equipment; when a wake-up word is recognized, a wake-up request is sent to the comprehensive judgment module; the comprehensive judgment module is used for receiving the wake-up request sent by the wake-up module, acquiring data sent by the environment detection module and judging whether intelligent equipment is waken up or not. After the system detects a voice wake-up command, whether the intelligent equipment is waken up or not is determined through a method for detecting whether people exist in theambient environment and whether the time is daytime or not or a lamp is turned on or not; the incorrect wake-up rate of the voice wake-up system is reduced and the user experience is improved.
Owner:SICHUAN CHANGHONG ELECTRIC CO LTD
Voice wake-up method and device, electronic equipment and storage medium
ActiveCN111508493AImprove recognition accuracySuppress detection jumpSpeech recognitionFalse awakeningEngineering
The invention discloses a voice wake-up method and device, electronic equipment and a storage medium, and relates to the technical field of voice processing, and the method comprises the steps: obtaining an input voice collected by an audio collector; matching the input voice based on a first voice matching model to obtain a first probability output, the first probability output being used for indicating a probability that the input voice contains a specified text; obtaining at least one probability output output by the first voice matching model before the current first probability output, and taking the probability output as a second probability output; fusing the first probability output and the second probability output to obtain updated first probability output; taking the updated first probability output as a first matching result of matching the input voice by a first voice matching model; and if the first matching result indicates that the input voice contains the specified text, waking up a terminal. According to the method, the historical output and the current output are fused, so that the keyword recognition accuracy can be improved, and the false awakening rate is reduced.
Owner:GUANGDONG OPPO MOBILE TELECOMM CORP LTD
Speech wake-up method and device
PendingCN111883117AReduce false wake-up rateImprove wakeup accuracySpeech recognitionAcousticsSpeech sound
The invention discloses a speech wake-up method and device, electronic equipment and a computer readable storage medium. The method comprises the following steps: acquiring a speech signal; inputtingthe speech signal into a first model, and outputting a first posterior probability of each frame of phoneme in the speech signal through the first model; taking a speech signal corresponding to the phoneme of which the first posterior probability meets a first wake-up condition as a wake-up speech segment; inputting the spectrogram and the posterior probability graph of the wake-up voice segment into a second model, and outputting a second posterior probability of each frame of phoneme in the wake-up speech segment through the second model; if the second posterior probability satisfies a second wake-up condition, performing a wake-up operation. According to the embodiment of the invention, through secondary wake-up confirmation, the false wake-up rate can be reduced, and the wake-up accuracy is improved.
Owner:SOUNDAI TECH CO LTD
Wake-up-free interaction method and device
PendingCN112863508AImprove interactive experienceImprove interaction efficiencySpeech recognitionEngineeringSpoken dialog
The invention discloses a wake-up-free interaction method and device, and the method comprises the steps: responding to a received effective voice signal of a user, and determining a detection interval based on the time period of the effective voice signal; if the effective pointing feature of the user is detected in the detection interval, judging whether the effective voice signal and the effective pointing feature correspond to an effective instruction or not; and if the corresponding effective instruction is judged, processing and feeding back the effective instruction. According to the scheme, the wake-up-free interaction is achieved by combining the pointing feature with voice interaction, the interaction experience of a user and intelligent voice equipment can be improved under the condition that the low wake-up error rate is ensured, the user interaction efficiency can be greatly improved especially in a frequent interaction scene, and meanwhile, the mode of the wake-up feature is used as the multi-mode input of the dialogue system, so that the application scene of the voice dialogue system is enriched.
Owner:AISPEECH CO LTD
Training method of voice wake-up model, and detection method and device of voice false wake-up
ActiveCN114360522AGuaranteed wake-up accuracyWake up accuracy improvedSpeech recognitionNetwork structureEngineering
The invention provides a voice wake-up model training method and a voice false wake-up detection method and device, in a model training stage, a basic network and a classification layer are recognition network structures of an existing voice wake-up model, and an embedded layer is added into an original recognition network structure as a new plug-in. Therefore, a framework of an original identification network structure does not need to be changed, and expansion is easy. In the model application stage, the wake-up accuracy of the foundation is ensured through a first recognition result output by the foundation network and the classification layer; on the basis, a basic network and a vector distance judgment between a second recognition result output by an embedded layer and a wake-up word feature vector are added, so that whether the similarity between the current recognition result of the voice wake-up model and a preset wake-up word reaches a preset condition or not is recognized; therefore, the recognition accuracy of the whole voice wake-up model on similar voices is improved, and the false wake-up rate is effectively reduced.
Owner:深圳市友杰智新科技有限公司
Self-defined awakening method and device applied to intelligent voice equipment
InactiveCN110600029AIncrease wake rateReduce false wake-up rateSpeech recognitionTransmissionSpeech recognition
The invention discloses a self-defined awakening method and device applied to intelligent voice equipment. The method comprises the steps of receiving a registration text set by a user and collectingregistration voice of the user; computing a registration awakening threshold based on the registration text; computing a registration awakening score of the registration voice based on a universal awakening model, and judging that whether the registration awakening score is more than the registration awakening threshold or not; if the registration awakening score is more than or equal to the registration awakening threshold, aligning the registration voice with the registration text, and extracting a voice segment corresponding to each character in the registration text; and extracting a Gaussian posterior feature of the voice segment corresponding to each character, and generating a feature template of the whole registration voice based on the Gaussian posterior feature of each voice segment. According to the scheme provided by the method and the device, the quality of input voice can be optimized in a registration stage, so that the system can be much finer in a score computing module, and finally, a mistakenly awakening rate of similar words also can be reduced while an awakening rate is improved.
Owner:AISPEECH CO LTD
Who we serve
- R&D Engineer
- R&D Manager
- IP Professional
Why Eureka
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Social media
Eureka Blog
Learn More Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com