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129 results about "Voice change" patented technology

A voice change or voice mutation, sometimes referred to as a voice break, commonly refers to the deepening of the voice of people as they reach puberty. Before puberty, both sexes have roughly similar vocal pitch, but during puberty the male voice typically deepens an octave, while the female voice usually deepens only by a few tones.

Method for recognizing sound-groove based on affection compensation

InactiveCN101226742AImprove the immunityExtended Modeling InformationSpeech recognitionVoice changeSpeech sound
The invention relates to a sound-groove identification method based on emotion compensation. The emotion compensation includes three portions of emotion detection, character compensation and emotion expansion, comprising of calculating voice emotion factors to be according to the emotion detecting technique, compensating the voice change caused by emotion change respectively from the two layers of character and mode and finally improving robustness of the sound-groove identification technique to the emotion change. The invention has the advantages that the invention breaks through the inconsideration of sound-groove emotion change of the existing sound-groove identification technique, deals with the voice change caused by emotion change from the two layers of character and mode and strengthens resisting power to the voice emotion drift. The character layer standardizes the voice feature within the modeling ability of the training model by means of emotion degradation, normalization and barrier to reach the purpose of inhibiting the influence of the user emotion on the identification property. The mode layer obtains large scale emotion voices by employing the reverse way of synthesizing emotion voice by emotion changing rule, thereby greatly expanding the modeling information of the sound-groove model and resoling the difficulty of obtaining emotion data.
Owner:ZHEJIANG UNIV

Voice change detection method and system, mobile terminal and storage medium

The invention is applicable to the technical field of automatic speaker verification, and provides a voice change detection method and system, a mobile terminal and a storage medium. The method comprises the following steps of acquiring sample voice data, and carrying out feature extraction on the sample voice data to obtain a cqt voice feature; carrying out optimization processing on the cqt voice feature to obtain a cqcc voice feature, and inputting the cqcc voice feature into a preset convolutional neural network for model training in order to obtain a voice detection model; and acquiring to-be-detected voice, inputting the to-be-detected voice into the voice detection model for voice analysis, and carrying out voice change judgement on the to-be-detected voice according to an analysisresult of the voice detection model. According to the voice change detection method and system, the mobile terminal and the storage medium, the manual feature selection is not needed, the model training is carried out by adopting a convolutional neural network based mode, the accuracy of subsequent voice change detection for the to-be-detected voice is improved, and the resolution of the voice detection model is improved through extraction and optimization based on the cqt feature.
Owner:XIAMEN KUAISHANGTONG TECH CORP LTD

Voice change detection method, terminal and computer readable storage medium

The invention discloses a voice change detection method, a terminal and a computer readable storage medium. The method comprises the following steps of when a detection request is received, obtaininginformation of an object to be detected; detecting whether the object to be detected conforms to a corresponding preset condition or not; if so, obtaining corresponding data of voice to be detected; detecting whether the data of the voice to be detected conforms to the preset voice change detection voice condition or not; if so, obtaining corresponding feature information of voiceprints to be detected and voice counterfeiting judging results through a preset voice change detection model; detecting whether a preset voiceprint feature database is in a latest updated state or not; if so, obtaining the preset voiceprint feature information corresponding to the feature information of the voiceprints to be detected; calculating the matching degree between the feature information of the voiceprint features to be detected and the preset voiceprint feature information; and determining whether the voice data to be detected is artificially counterfeited voice data or not. Therefore, the technicalproblem of low detection accuracy of the artificially counterfeited voice is solved, and the detection accuracy of the voice data to be detected is improved.
Owner:SPEAKIN TECH CO LTD

Voice replacement method

The invention relates to a voice replacement method. The method comprises the steps of determining a replaced person in an audio / video resource, wherein the audio / video resource is a resource comprising audio information and image information, or the resource only comprising the image information, or the resource only comprising the audio information; determining an appointed person; obtaining audio information of the appointed person; and playing each frame of the audio / video resource in sequence, wherein for any frame, a playing mode comprises the fact that if any frame comprises the audio information corresponding to the replaced person, the audio information corresponding to the replaced person is replaced by the audio information of the appointed person, and then the audio replaced frame is played; if the any frame does not comprise the audio information corresponding to the replaced person and comprises the image information corresponding to the replaced person, the image information corresponding to the replaced person in the any frame is played, and moreover, the audio information of the appointed person is played; and if the any frame does not comprise the audio information corresponding to the replaced person and also does not comprise the image information corresponding to the replaced person, the frame is directly played. Person voice change after the audio / video resource is produced is realized, participation and interactivity and are improved.
Owner:北京易捷胜科技有限公司

Microphone connection live broadcast method and related equipment

The invention provides a microphone connection live broadcast method and related equipment, and the method comprises the steps: obtaining an original audio inputted by an anchor in real time based ona terminal and a target tone selected by the anchor based on the terminal if any terminal triggers a sound changing live broadcast mode in a live broadcast process of microphone connection of a plurality of terminals; performing tone conversion on the original tone in the original audio based on the target tone to obtain a converted target audio; and mixing the target audio with acquired originalaudios input by other microphone-connected terminals to obtain a mixed stream audio, and sending the mixed stream audio to all microphone-connected terminals and audience terminals entering a microphone-connected live broadcast room. In the scheme, a server performs tone conversion on an original audio input by a terminal triggering a voice-changing live broadcast mode in real time to obtain a target audio. Therefore, audiences entering the live broadcast room can watch conveniently. Through adoption of the method, microphone connection live broadcast is performed, so that the live broadcast watching experience of the user can be improved, and the user stickiness to the live broadcast platform is enhanced.
Owner:广州方硅信息技术有限公司

Frequency domain voice blind separation method for multi-frequency-band switching call media node (CMN) nonlinear function

InactiveCN102543098AEfficient outputIdeal separation of speechSpeech analysisIntermediate frequencyVoice change
The invention discloses a frequency domain voice blind separation method for multi-frequency-band switching call media node (CMN) nonlinear function, which belongs to the technical field of speech enhancement and is characterized in that frequency domain speech is divided into the two frequency bands of low frequency and middle frequency based on kurtosis distribution characters. Three types of multi-frequency-band schemes are applied for switching a nonlinear function of a plurality of CMN algorithms, at least one scheme is led to be most matched with Gaussian performance and symmetry of frequency domain speech. Compared with single nonlinear function CMN algorithms, the frequency domain voice blind separation method for multi-frequency-band switching CMN nonlinear function is capable ofbeing adapted to voice changes in terms of Gaussian performance and symmetry, and remarkably improves voice separation performance. When an ordinary amplitude correlation method is adopted for voice sequence regulation of all frequency points, the separation signal to noise ratio of two paths of voice can be increased by 11dB at most, and the frequency domain voice blind separation method is stable is performance, easy in software and hardware achievement, and capable of being widely used in key technologies of computer perception and decision-making, unmanned driving and the like so as to achieve the speech enhancement function, and further improves entire performance of voice signal processing tasks such as voice recognition and content understanding.
Owner:DALIAN UNIV OF TECH
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