4 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.