Provided are an audio file re-recording method and device, and a storage medium. The method includes: determining first time, the first time being start time of a recorded clip to be re-recorded in an audio file; playing a first recorded clip that has been recorded, the first recorded clip using the first time as end time in the audio file; upon arrival of the first time, collecting first voice data of a user to obtain a second recorded clip; and processing the first recorded clip and the second recorded clip to obtain a re-recorded audio file.

An electronic percussion instrument to control generated sound in accordance with operation to the striking surface includes: a first sensor configured to detect a slapping operation on the striking surface; a second sensor configured to detect a contact operation to the striking surface; and a processor configured to control sound generated in response to detection of a slapping operation by the first sensor in accordance with a place of a contact operation to the striking surface detected by the second sensor.

Technologies are described for identifying familiar or interesting parts of music content by analyzing changes in vocal power using frequency spectrums. For example, a frequency spectrum can be generated from digitized audio. Using the frequency spectrum, the harmonic content and percussive content can be separated. The vocal content can then be separated from the harmonic and/or percussive content. The vocal content can then be processed to identify surge points in the digitized audio. In some implementations, the vocal content is included in the harmonic content during the separation procedure and is then separated from the harmonic content.

A system is described that permits identified musical phrases or themes to be synchronized and linked into changing real-world events. The achieved synchronization includes a seamless musical transitionachieved using a timing offset, such as relative advancement of an significant musical onset, that is inserted to align with a pre-existing but identified music signature, beat or timebasebetween potentially disparate pre-identified musical phrases having different emotive themes defined by their respective time signatures, intensities, keys, musical rhythms and/or musical phrasing. The system operates to augment an overall sensory experience of a user in the real world by dynamically changing, re-ordering or repeating and then playing audio themes within the context of what is occurring in the surrounding physical environment, e.g. during different phases of a cardio workout in a step class the music rate and intensity increase during sprint periods and decrease during recovery periods.

Systems and methods capable of providing adaptive and responsive accompaniment to music with fixed chord progressions, such as jazz and pop, are provided. A system can include one or more sound-capturing devices, a signal analyzer to analyze captured sound signals, and an electronic sound-producing component that produces electronic sounds as an accompaniment.

An evaluation device according to an embodiment includes an acquisition unit acquiring an input sound; a feature value calculation unit calculating a feature value from the input sound acquired by the acquisition unit; a detection unit detecting a break position corresponding to a starting point of each sound included in the input sound acquired by the acquisition unit based on the feature value calculated by the feature value calculation unit; and an evaluation value calculation unit calculating, based on a plurality of break positions detected by the detection unit, an evaluation value regarding a degree of temporal regularity of the plurality of break positions.

A drum assembly includes a drum, a stimulus processor assembly and a light pattern display generator. The drum includes a drum shell that at least partially defines a drum interior. The stimulus processor assembly receives a stimulus, generates an input signal, and converts the input signal to an output signal. The light pattern display generator receives the output signal from the stimulus processor assembly. The light pattern display generator generates a light pattern display in response to the output signal. Additionally, the light pattern display generator projects the light pattern display at least partially within the drum interior. The light pattern display generator can include one or more of an animation laser, a hologram projector and a lumin disk. The stimulus can be generated by the drum or by a source remote from the drum.

According to embodiments of the present invention, a musical performance evaluation method utilizes a musical composition database stored on a server containing musical encodings of all notes to be performed in a musical composition. A student user performing requested musical composition for evaluation may use a client application from a client computing device to receive audio input from the performance and compare identified frequencies to intended frequencies, and identify deviations from pitch, rhythm, and tempo throughout the performance. Deviations may be identified by switching between several pitch detection algorithms based upon a type of note (single note, chord, or plucked string) expected to be played by a student user in real time. Factors for deducting from a performance pitch score and a performance rhythm score are determined and used to calculate a performance pitch score and a performance rhythm score. Error data and scores generated may be transmitted to a server and stored in a historical session database. A student user and an instructor user may review the historical session database to determine the student's progress in musical education.

An electronic percussion instrument to control generated sound in accordance with operation to the striking surface includes: a first sensor configured to detect a slapping operation on the striking surface; a second sensor configured to detect a contact operation to the striking surface; and a processor configured to control sound generated in response to detection of a slapping operation by the first sensor in accordance with a place of a contact operation to the striking surface detected by the second sensor.

Technologies are described for identifying familiar or interesting parts of music content by analyzing changes in vocal power using frequency spectrums. For example, a frequency spectrum can be generated from digitized audio. Using the frequency spectrum, the harmonic content and percussive content can be separated. The vocal content can then be separated from the harmonic and/or percussive content. The vocal content can then be processed to identify surge points in the digitized audio. In some implementations, the vocal content is included in the harmonic content during the separation procedure and is then separated from the harmonic content.