10 results about "Pitch shift" patented technology

The invention discloses a singing voice conversion method based on VITS. The method comprises the following steps of: 1, respectively extracting a bottleneck feature, a fundamental frequency, a singing style feature and a linear spectrogram from the singing of a source singer by utilizing a Whisper superficial layer encoder, an automatic singing transcription model AST and an AutoVC-based pitch-energy encoder, and taking the bottleneck feature, the fundamental frequency, the singing style feature and the linear spectrogram as the input of a VITS-based singing voice conversion model; reconstructing the singing voice by using a VITS-based singing voice conversion model in combination with the voiceprint characteristics of the singer to obtain converted singing voice of the target singer; and 2, performing pitch adjustment according to the pitch difference between the source singer and the target singer through a pitch shifter, and generating a target singing sound with the characteristics of the target singer by taking the bottleneck characteristics, the F0 and the singing style characteristics as the input of a voice conversion model. The method has the characteristics of multi-level refined acoustic feature decoupling, explicit singing style migration, high-fidelity waveform generation and dynamic adaptive pitch conversion.

A sound signal processing device includes a memory and a processor. The memory stores instructions. The processor implements the instructions to input a first sound signal, perform a first signal processing that includes at least first pitch shifting on the first sound signal, and output a first effect processing signal. The processor also implements the instructions to input a second sound signal, perform a second signal processing that includes at least second pitch shifting on the second sound signal, and output a second effect processing signal. The processor also implements the instructions to perform a cross-couple processing of the first effect processing signal and the second effect processing signal. The processor also implements the instructions to set a parameter that imparts continuous variation to a degree of coupling of the first effect processing signal and the second effect processing signal in the cross-couple processing.

To provide an information notification device, an information notification program, an information notification method, and an information notification system capable of notifying a user of information by warning sound and vibration without giving a sense of discomfort to the user.SOLUTION: An information notification device outputs an information notification vibration signal based on an information notification sound signal, and detects a peak frequency of the information notification sound signal, calculates a pitch shift value in pitch shift processing such that the peak frequency is within a predetermined suitable frequency band suitable for vibration notification, and generates the information notification vibration signal by performing pitch shift processing on the information notification sound signal based on the pitch shift value.SELECTED DRAWING: Figure 1

This application relates to an audio processing method, computer device, and computer program product. The method includes: acquiring a set of dry audio files corresponding to a target song, and selecting at least one target dry audio file from the dry audio file that meets preset conditions; the dry audio file is obtained by acquiring sound signals generated by at least one target object singing the target song; acquiring the key of the target song, and using chord progressions matching the key of the song to perform pitch shifting on each of the target dry audio files, obtaining pitch-shifted dry audio files; performing a fusion process on each of the pitch-shifted dry audio files to obtain target harmonic audio files; and mixing the target harmonic audio files with the accompaniment audio files corresponding to the target song to output target accompaniment audio files with chorus effects. This method can improve the efficiency of audio acquisition.

The invention provides a vehicle acoustic early warning method, a computer program product, a storage medium, a controller and a vehicle, according to the vehicle acoustic early warning method provided by the invention, in the running process of the vehicle, in combination with vehicle running data of the vehicle, tone offset processing is performed on original early warning audio data by using a Shannon interpolation algorithm, and the early warning accuracy is improved. The early warning audio data can be used for reflecting the running condition of the vehicle, so that audio playing equipment carried by the vehicle can be used for playing the early warning audio data.

To provide an acoustic signal processing technology which realizes various expressions with intuitive and flexible operation by a user.SOLUTION: An acoustic signal processing unit 4 includes: a first signal processing unit 41 for performing first pitch shift processing on a first acoustic signal SD1; a second signal processing unit 42 for performing second pitch shift processing on a second acoustic signal SD2; a cross coupling unit 50 for cross-coupling a first effect processing signal AD1 outputted from the first signal processing unit 41 and a second effect processing signal AD2 outputted from the second signal processing unit 42; and a parameter setting unit 25 for setting a parameter which continuously changes a coupling degree of the first effect processing signal AD1 and the second effect processing signal AD2 in the cross coupling unit 50.SELECTED DRAWING: Figure 4

An apparatus and method for generating and outputting display data corresponding to sound sources separated by sound source separation processing and performing correction of each sound source data according to user input are provided. The apparatus includes: a sound source separation processing execution unit that executes sound source separation processing; and a voice data editing processing unit that generates display data corresponding to the sound sources separated by the sound source separation processing and outputs the display data to a display unit. A voice data editing processing unit generates display data enabling recognition of a timing offset, a pitch offset, or the like of different sound source data, outputs the display data together with pitch change data associated with a change over time of the sound source data, and performs processing of correcting the sound source data in accordance with a user input.

The invention relates to the field of audio processing, in particular to a tone synthesis method and device, equipment and a medium, and the method comprises the steps: obtaining a to-be-processed audio and a target tone type; extracting key acoustic parameters of the audio to be processed; determining pitch offset, distortion intensity and band-pass formant according to the key acoustic parameters and the target tone type; performing pitch adjustment on the to-be-processed audio according to the pitch offset to obtain a first signal; performing distortion shaping based on the first signal and the distortion intensity to obtain a second signal; performing resonance enhancement according to the second signal and the band-pass formant to obtain a synthetic audio; and the tone synthesis effect can be improved.

Methods, apparatus, systems and articles of manufacture are disclosed to identify media that has been pitch shifted, time shifted, and / or resampled. An example apparatus includes: memory; instructions in the apparatus; and processor circuitry to execute the instructions to: transmit a fingerprint of an audio signal and adjusting instructions to a central facility to facilitate a query, the adjusting instructions identifying at least one of a pitch shift, a time shift, or a resample ratio; obtain a response including an identifier for the audio signal and information corresponding to how the audio signal was adjusted; and change the adjusting instructions based on the information.