6 results about "Time signature" patented technology

A music notation system for string instruments features a time signature indicator and measure sections with representations arranged in a single horizontal plane to eliminate spatial recognition requirements and avoid navigation across multiple information planes. Each representation includes colored numbers denoting fret positions and string colors, spatially arranged to eliminate the need for musicians to leap across different vertical positions when reading sequential notes. Graphical indicators positioned separately from and in proximity to the colored numbers specify note duration, with visual separation isolating rhythmic components from note identification. This reduces visual processing complexity, providing a method for string instrument players to interpret and perform musical compositions accurately without requiring spatial recognition skills.

A device to determine a number of beats per bar from a music data includes at least one processor configured to calculate a weighted average beat level waveform from a first beat level waveform obtained for a first frequency band and a second beat level waveform obtained for a second frequency band; calculate autocorrelation on the weighted average beat level waveform by varying an amount of a shift interval for the autocorrelation; determine a plurality of the shift intervals at which correlation values of the autocorrelation are n highest, where n is a positive integer greater than or equal to 2; and determine the number of beats per bar based on the determined plurality of the shift intervals at which the correlation values of the autocorrelation are n highest.

The application is suitable for the technical field of audio signal rhythm detection, and provides a music rhythm detection method and device, terminal equipment and computer readable storage medium, comprising: obtaining style information of an audio signal; determining model parameters according to the style information; loading the model parameters into a target rhythm recognition model, wherein the target rhythm recognition model is used for recognizing the rhythm of the audio signal input into the target rhythm recognition model, and the target rhythm recognition model is trained by a plurality of first sample audio signals whose style information is known; and obtaining a rhythm detection result of the audio signal according to the audio signal and the target rhythm recognition model loaded with the model parameters. The above method can effectively perform rhythm detection on music signals of different time signatures and style types.

The invention provides a music signal feature extraction and light dynamic mapping control method and system, and the method comprises the steps: carrying out the recognition of a music beat based on a model, recognizing a bar, a beat time point, the number of bars, and a beat number, and calculating the beat speed; identifying music styles and emotions, classifying song styles and identifying emotional tendencies; drumbeat point feature analysis and recognition, particularly recognition of striking points of a bottom drum and a military drum; music segmentation identification, wherein music segmentation identification is carried out based on music style identification; special event detection: detecting high voice, silence accompaniment, special drumbeat at the beginning and weakening at the end; performing popular song color system switching identification and execution; and generating a light driving file, and realizing music signal characteristic and light dynamic mapping control based on the above results. The technical problems that in the prior art, due to the fact that music signal feature extraction is not accurate, the synchronous interaction effect of lamplight and music is insufficient, and music rhythm, style and emotion changes cannot be fully expressed can be effectively solved.

A processor-based automated method of identifying and assembling tessellating rhythmic patterns for a generative composition system maintains coherent musical form between musical bars. The applied method artificially controls, over time, tension and resolution in music to maintain good form by manipulating the correlation between rhythmic output and its rhythmic template. The system takes a time signature for a musical bar, and partitions it into multiple timeslots (TSn) of equal duration. A rhythmic template generator (112) partitions the timeslots into a grid (402) such that combinations of groupings of multiples of two timeslots, three timeslots or combinations of groupings of two and three timeslots are identified within a single bar for the bar. For each grouping, a single rhythmic event marker or "beat" is initially placed in its first timeslot, with beat insertion also completed for all alternative rhythm templates of the grid. Each rhythmic template provides a tessellation over a selectable number of bars. Following selection of one rhythmic template as a prime or root, its event marker positions are populated with notes using probabilistic note position selecting algorithms (619a-d) specific to particular instruments (609, 611, 614, 616), and styles. Since all selected instruments contributing to rhythm share a common root, even with varying note density, musical coherence is observed, and good form maintained between tessellating bars. Harmonics later overlay the generated rhythm(s) in a complementary process.

The invention relates to a dynamic stave generation method based on an MIDI file, and the method comprises the steps: analyzing note event data based on the MIDI file; stave mapping processing is carried out on the note event data, and the positions and styles of notes on a stave are determined; instantiating the note preform to display the note based on the mapping result; according to the note attributes, generating corresponding note rods, cross rods, detents, nodal lines and the like; the music speed and the beat number are dynamically adjusted by analyzing the dynamic time signature and the beat number information per minute in the MIDI file. According to the method, the standard staff is generated in real time by reading the MIDI file, accurate interaction with a user is achieved, meanwhile, elements such as notes and note rods are allowed to be replaced with dynamic prefabricated parts (such as cartoon notes and 3D effects), and the interestingness and teaching effect of music learning are improved.