10 results about "Pitch correction" patented technology

Techniques have been developed to facilitate the capture of performances on handheld or other portable computing devices and, in some cases, the pitch-correction and mixing of such vocal performances with backing tracks for audible rendering on such devices. Captivating visual animations and / or facilities for listener comment and ranking are provided in association with an audible rendering of a performance, e.g., a vocal performance captured and pitch-corrected at another similarly configured mobile device and mixed with backing instrumentals and / or vocals. Geocoding of captured vocal performances and / or listener feedback may facilitate animations or display artifacts in ways that are suggestive of a performance or endorsement emanating from a particular geographic locale on a user manipulable globe. In this way, implementations of the described functionality can transform otherwise mundane mobile devices into social instruments that foster a unique sense of global connectivity and community.

In various applications, the system provides a method for processing audio signals, including: receiving, by a processor, a digital audio signal from a recorded audio file; analyzing, by the processor, the digital audio signal to identify pitch distortion caused by changes in momentary sound level; determining, by the processor, an amount of compensation of the audio signal to correct the identified pitch distortion; dynamically adjusting, by the processor, the digital audio signal by the compensation amount to correct the identified pitch distortion; and outputting, by the processor, the digital audio signal to an audio transducer device of a listener to improve a listening experience for the listener of the recorded audio file.

The present application relates to the technical field of musical instrument tuning, and particularly relates to a self-learning musical instrument pitch correction device capable of eliminating environmental noise. The present application comprises an image acquisition module, a vibration feature acquisition module, a fundamental frequency acquisition module, a correction indication module and a self-learning recording module. The image acquisition module is used to collect string vibration images to physically isolate noise, the vibration feature acquisition module is used to track string displacement to generate vibration feature data, the fundamental frequency acquisition module is used to perform frequency domain transformation and interpolation on the data to obtain the actual vibration fundamental frequency, the correction indication module is used to compare with the standard pitch and output a graded color indication and a tuning direction, and the self-learning recording module is used to analyze previous deviation data to generate stability evaluation and maintenance suggestions. The present application realizes sound classification level pitch detection and correction without sound collection, and improves the tuning reliability in a noisy environment.

The invention discloses a no-reference sound correction method based on a music score big language model, and relates to a mismatch song correction method in the technical field of intelligent audio processing. The objective of the invention is to solve the problems of poor pitch and rhythm collaborative correction effect, low note feature extraction precision and easy loss of emotional expression in a non-reference scene in the existing sound correction technology. The method comprises the following steps: S1, acquiring and preprocessing off-tune singing audio data; s2, carrying out note accurate segmentation on the preprocessed audio; s3, note level features are extracted, and Octuple-MIDI symbolization input is generated; s4, realizing non-reference pitch-rhythm joint error correction through a music score big language model, and outputting a standard MIDI sequence; s5, based on a standard MIDI sequence, completing cooperative accurate correction of the sound pitch and the rhythm of the song; and S6, outputting the natural corrected singing sound through a high-fidelity synthesis technology. The method is used in the field of off-tune singing processing such as karaoke entertainment, AI music creation, singing sound correction and the like.

An audio pitch correction method and apparatus, and an electronic device, which relate to the technical field of audio processing. The method comprises: acquiring singing audio to be processed (S101); performing speech recognition on said singing audio, so as to obtain audio description information; and performing pitch recognition on said singing audio, so as to obtain initial pitch information (S102); on the basis of the audio description information, correcting boundary information of the initial pitch information, so as to obtain pitch information (S103); on the basis of the audio description information, determining an original song pitch template corresponding to said singing audio, and on the basis of the pitch information, correcting the original song pitch template corresponding to said singing audio, so as to obtain a reference original song pitch template (S104); and on the basis of the reference original song pitch template and the pitch information, determining adjustment pitch information, and on the basis of the adjustment pitch information, performing pitch correction on said singing audio, so as to obtain pitch-corrected audio (S105). The method combines the results of pitch recognition and speech recognition to jointly determine pitch information, and dynamically determines a reference original song pitch template on the basis of the pitch information, such that the obtained adjustment pitch information is more accurate, and pitch-corrected audio is more consistent with an original song in terms of pitch and is more aligned with the actual singing performance of a user, thereby improving the overall quality of the audio.

The invention relates to a vehicle (1) comprising media playing means (2) for outputting songs in a cabin. The vehicle according to the invention is characterized in that: a song determination means (3) for detecting and acquiring following singing of at least one vehicle occupant (4) during the output of a song; a singing analysis means (5) for detecting the deviation between the following singing (6) of the vehicle occupant (4) and the original singing included in the song; and a singing indication means (7) configured to display at least the deviation between the following singing (6) and the original singing to the vehicle occupant (4) and / or to record the following singing (6), to compensate the deviation of the following singing (6) by automatic pitch correction, and to output the compensated following singing via the media playback means (2).

The embodiment of the application provides an audio correction method and device, an electronic device and a storage medium, and belongs to the technical field of speech recognition. The method comprises the following steps: acquiring sample audio, and acquiring an original audio correction model; performing pitch feature extraction on the sample audio according to a pitch encoder; performing pitch correction processing on an original pitch vector according to a generator; performing content feature extraction on the sample audio according to a content encoder; performing content correction processing on an original content vector according to the generator; performing audio fusion processing on the corrected pitch vector and the corrected content vector according to the generator; performing audio quality discrimination on the corrected audio according to a target discriminator; adjusting parameters of the original audio correction model according to target discrimination data to obtain a target audio correction model; and performing audio correction on the target audio acquired in advance according to the target audio correction model. The embodiment of the application can be applied to financial technology, improve the audio quality, and further improve the accuracy of speech recognition.

The application provides a pitch correction method and device based on fundamental frequency modulation, equipment and medium, relates to the technical field of speech processing, and comprises the following steps: extracting a speech content sequence from an original song audio to be corrected; obtaining a timbre feature vector of a target speaker corresponding to the original song audio; performing fundamental frequency coding on a target fundamental frequency curve of a target song corresponding to the song audio to obtain a fundamental frequency condition feature of the target song; performing first feature linear modulation on the speech content sequence and the fundamental frequency condition feature to obtain a pitch mean condition; performing condition diffusion according to the pitch mean condition, the timbre feature vector and the fundamental frequency condition feature to generate a target mel-frequency spectrum; and performing audio waveform reconstruction according to the target mel-frequency spectrum to obtain a target song audio after pitch correction. The application can improve the pitch correction effect of the song.

The invention provides a tone-constraint-based tone height correction method and computer equipment, and the method comprises the steps: determining a monaural audio and an accompaniment audio from preset song audios, carrying out the tone recognition of the monaural audio, obtaining the tone recognition information, and carrying out the tone height correction of the monaural audio according to the tone recognition information through employing a preset tone constraint condition, and carrying out tone height correction on the monaural voice audio to obtain a target voice audio, and generating a target song audio according to the target voice audio and the accompaniment audio. Therefore, tone height correction is carried out according to the tone identification information, the mismatch probability is reduced, the consistency of the overall tonality color and style of the song is ensured, and the auditory feeling is further improved.

The application discloses a pitch positioning and recognizing method based on human voice separation, which comprises the following steps: firstly, selecting a corresponding real contrast file according to a to-be-recognized singing video and preprocessing; then, adopting an end-to-end human voice separation technology to separate human voice from the processed data to obtain a human voice file; constructing a pitch positioning and recognizing network, which comprises an input layer, a relationship layer and an output layer; finally, inputting the human voice file obtained by the human voice separation into the constructed pitch positioning and recognizing network to realize pitch positioning and recognizing. In the method, the pitch positioning and recognizing network is constructed, the pitch and a standard line are visualized, the curve comparison between the human voice and the sound synthesized after pitch correction can be directly observed, the rights and interests of audience fans are maintained, and the universality and accuracy are improved compared with the prior art.