86 results about "Cadence" patented technology

A method for extracting the most representative segments of a musical composition, represented by an audio signal, according to which the audio signal is preprocessed by a set of preprocessors, each if which is adapted to identify a rhythmic pattern. The output of the preprocessors that provided the most periodic or rhythmical patterns in the musical composition selected and the musical composition is divided into bars with rhythmic patterns, while iteratively checking and scoring their quality and detecting a section that is a sequence of bars with score above a predetermined threshold. Checking and scoring is iteratively repeated until all sections are detected. Then similarity matrices between all bars that belong to the musical composition are constructed, based on MFCCs of the processed sound, chromograms and the rhythmic patterns. Then equivalent classes of similar sections are extracted along the musical composition. Substantial transitions between sections represented as blocks in the similarity matrices are collected and a representative segment is selected from each class with the highest number of sections.

The invention provides scoring a performance of a guitar part in a rhythm-action game. It operates in the context of a video game platform in communication with a display and a controller and involves receiving an input performance from the controller including at least one input chord note, each input chord note including an input string value corresponding to a struck string and an input fret value associated with the input string value. Then, a reference performance is provided, which includes at least two reference chord notes to be input at a target time, each reference chord note including a reference string value and a reference fret value associated with the reference string value. Then, a degree of matching is determined between the input performance and the reference performance, and a score is assigned to the input performance based on the degree of matching.

An apparatus for teaching rhythm includes a housing having a plurality of tempo indicator lights and a plurality of beat indicator lights corresponding to the tempo indicator lights, such that the beat indicator lights can be selectively illuminated to indicate a desired beat in a rhythm. Circuitry illuminates the tempo indicator lights in sequence and the selected beat indicator lights in sequence, so that a user may attempt to manually generate a sequence of sounds synchronous with the selectively illuminated beat indicator lights.

A computer implemented method for analysing sounds, such as audio tracks, and automatically classifying the sounds in a space in which arousal is one axis and valence is another axis. The location of a sound or track in that arousal-valence space is automatically determined using a computer implemented system that analyses, measures or infers values for each of the following base feature parameters: harmonicity, turbulence, rhythmicity, sharpness, volume and linear harmonic cost, or any combination of two or more of those parameters.

A user inputs, as a query pattern, a desired search-object rhythm pattern by operating a rhythm input device. At that time, a determination is made of a style of operation performed by a user on a rhythm input device, such as whether the user has operated a single key or a plurality of keys, or duration or intensity of the operation, and then, a user-intended performance part is identified, on the basis of the determined style of operation, from among one or more performance parts constituting a performance data set (automatic accompaniment data set). For the thus-identified performance part, a rhythm pattern search section searches an automatic accompaniment database for an automatic accompaniment data set including a rhythm pattern that matches the input rhythm pattern (query pattern).

The embodiment of the invention discloses a song climax fragment identification method and device. The method comprises the following steps: sampling an audio file of a song, according to the note time value and the rhythm type of the song, dividing the sampling data of the song into sampling data of a plurality of audio paragraphs, obtaining a chord corresponding to the audio paragraph accordingto the sampling data of the audio paragraphs, determining a chord period included in the climax fragment according to the chord trend of the song and the chord corresponding to the audio paragraph, correcting the chord period included in the climax fragment according to the lyric data of the song to obtain a chord period included in the climax fragment, and finally identifying a part, corresponding to the chord period included in the climax fragment after correction, of the song as the climax fragment of the song. According to the method and the device, the climax fragments of the song are identified based on essential factors of the song, such as note time values, rhythm types and chord trends, so that the identification accuracy of the climax fragments of the song is improved.

A computer-implemented method of digital music composition that creates a digital multi-genre musical composition track by downloading a host digital music track of a first genre and two or more separate donor multi-genre musical tracks, and then selectively modulating the instruments and rhythmic patterns of the donor musical tracks by manipulating the rhythmic patterns. The manipulation includes manipulating at least one of the intensities, frequency, sound, beat, and rhythm of the rhythmic pattern. The manipulated donor musical tracks are then integrated into the host musical track to create a combined digital multi-genre musical composition track, which can be downloaded, saved in a file, and replayed as needed.

Systems, devices, and methods for encoding the harmonic structure of a musical composition in a digital data structure are described. Tonal and rhythmic commonalities are identified across the musical bars that make up a musical composition. Individual bars of the musical composition are each analyzed to characterize their respective harmonic fingerprints in various forms, and the respective harmonic fingerprints are compared to sort the musical bars into harmonic equivalence categories. Isomorphic mappings between hierarchical data structures that encode the musical composition based on musicality and harmony, respectively, are also described.

The systems, devices, and methods for encoding the harmonic structure of a musical composition in a digital data structure have broad applicability in computer-based composition and variation of music.

The invention discloses a musical instrument performance point determining and rhythm scoring method. The method includes the steps of S1, obtaining audio performance data; S2, dividing the audio performance data into fixed-length segments, naming the fixed-length segments in sequence, performing short-time Fourier transform, and getting a fixed-proportion spectrogram with the corresponding name;S3, inputting the spectrogram into a target detection framework; S4, selecting whether to delete certain bounding boxes with scores lower than a preset value or not based on certainty scores; S5, according to file names, reorganizing a bounding box sequence; S6, setting the two horizontal coordinates of the bounding boxes as X1 and X2 to obtain the time series of user performance points; S7, performing operation in the steps S1 to S6 on template audio data to obtain the time series of template performance points; S8, using dynamic programming for point matching; and S9, performing scoring. Theoutput data of the audio data after the short-time Fourier transform is used to generating an image by using a color gradient, it is visually reflected that the color is darker, and either the performance point is noise or musical instrument sound is judged.

The invention provides a multi-tone multi-sound-effect dual-part single-string instrument with a music lamp. The single-string instrument is a novel electroacoustic musical instrument which mainly comprises a body, two strings, two shafts, a triangular bridge, a rolling bridge, a string pickup, a sound effect pickup, a rocker, a string binding device, a tone adjusting device, a finger plate, a sound effect device, a hamlet, a music lamp tower, a sound photoelectric conversion device, a foot-controlled hitting device, a pedal keyboard and the like, wherein the two strings are adjusted to form an octave relation, and are used for respectively playing a high part and a low part, or octave harmony of the two parts by singly stirring the strings or string the strings simultaneously, the tone adjusting device and the finger plate are used for matching so as to play a plurality of overtone tone and a plurality of flatness tone, the sound effect device and the sound effect pickup are used for playing sound effects of a plurality of percussion music, hands and feet can be matched for playing, one person plays the instrument but can obtain a playing effect of a small band after the person is skillful in playing the instrument, the music lamp tower flickers during playing, and colors of the lamp are changed along with the change of music tempo, and the instrument has a strong music expressive force and a good visual and audio artistic effect.

The embodiment of the invention provides a method and device for controlling music playing rhythm, electronic equipment and a storage medium. The method comprises the following steps: determining single-beat duration of music; determining an adjustment mode of the music playing rhythm; determining an adjustment object in the music; and adjusting the playing rhythm of the adjustment object according to the music single-beat duration and the adjustment mode. According to the method and device for controlling music playing rhythm, electronic equipment and a storage medium, the music playing rhythm can be accurately controlled by setting three elements of the music single-beat duration, the adjustment mode and the adjustment object, so that audiences are not passive listeners of music any more, and the interactivity between the audiences and the music is enhanced.

The invention provides an education-oriented multi-dimensional singing evaluation method in the technical field of singing evaluation. The method comprises the following steps: S10, acquiring an audio data set comprising to-be-evaluated audio data and standard audio data; S20, performing data cleaning on the audio data set; S30, extracting acoustic features of the audio data set; S40, preprocessing the acoustic features; S50, creating a music feeling evaluation model, an intonation evaluation model, a rhythm evaluation model, an integrity evaluation model, a chicking and spitting evaluation model and a total evaluation model; S60, evaluating the evaluation audio data based on the music feeling evaluation model, the intonation evaluation model, the rhythm evaluation model, the integrity evaluation model, the chicking and spitting evaluation model and the acoustic features, and sequentially generating evaluation values; and S70, enabling the total evaluation model to generate a total evaluation value based on each evaluation value. The education-oriented multi-dimensional singing evaluation method has the advantages that multi-dimensional evaluation of singing is realized, and the accuracy and interpretability of singing evaluation are greatly improved.

For 300 years, elegant Music Notation System, has been developed. Musicians, and lay people, struggled to learn and apply it. The System is overly complex, and Musicians and laymen, struggled to master the Notation System. This Invention, changes that landscape, shedding all complexity, limiting the role of Rhythmic notes, to Rhythms, Time, Duration of sound, without Notes darting, dancing around the staff, up and down, across, for pitches. Emphasis is placed on assigning each musical note, Pitch ID, of Octave number and Note ID. The traditional format of placing Staff, of 5 parallel lines, G, C, F Clefs, # or b (Flat), symbols for Scale, Key, next to Clefs, are all Eliminated. Reading notes on the Stem, bottom-up, LH to RH, for pitch or piano Key information, in concentrated Space-Time Topology of sound, made Reading, Playing music, efficient. Hand-Brush technique and Notation system are invented to enrich sound pallet.