Some examples described in this disclosure are performed at a first electronic device (e.g., a computer system) that is in communication with a display and one or more input devices. In some examples, the first electronic device detects a change in a physical environment of the first electronic device due to movement of one or more physical objects in the physical environment indicative of a user input. In some examples, the first electronic device performs a first action at the first electronic device or at a second electronic device in communication with the first electronic device in accordance with the change in the physical environment due to movement of the one or more physical objects in the physical environment.

A stringed instrument tuner that senses the vibration of all the strings of the instrument independently and simultaneously via ultraviolet reflective light sensors that are immune to interference from ambient alternating-current lighting. The pitches of the strings are then measured continuously in real-time and transmitted wirelessly to a receiver that simultaneously graphically displays how far out-of-tune all of the strings are so that the musician can instantly see which strings need tuning and tune them quickly. The receiver may be a smartphone, smartwatch, smart glasses, computer, self-tuning system, or a dedicated wearable receiver-display unit.

A computer-implemented method includes obtaining a trained model trained to store a relationship between first performance information and evaluation information. The first performance information includes a plurality of performance units. The evaluation information includes a plurality of pieces of evaluation information respectively associated with the plurality of performance units. The method also includes obtaining second performance information including an evaluation of each performance unit of the plurality of performance units. The method also includes processing the second performance information using the trained model to infer the evaluation of the each performance unit.

The present invention provides a band-pass filtering adaptive response method and system for music lamp strip. The method comprises the following steps: Step 1: obtaining sound data acquired by a microphone in real time, and sequentially filtering the obtained sound data through a low-pass filter; Step 2: classifying the filtered sound data by a volume classifier, so as to classify the continuous changes of sound into a number of discrete classifications; Step 3: determining a BPM of the sound data according to a classification result of the volume classifier; Step 4: determining a acquisition frequency of MCU according to the determined BPM; Step 5: acquiring the classification result of the volume classifier by MCU according to the determined acquisition frequency; Step 6: controlling color change and/or brightness change of LED lamp on the music lamp strip according to the classification result acquired by MCU.

Systems for a touchless musical instrument, where the touchless musical instrument includes: multiple sensors, where each sensor detects a presence of an object within a predetermined distance of the sensor; an audio speaker; a processor electrically connected to the sensors and the audio speaker; and executes instructions on the process to: receive, from the plurality of sensors, an object detection signal indicating a location of the object with respect to the plurality of sensors; generate an audio output signal based on the location of the object indicated by the object detection signal; and generate an audible output from the audio speaker by transmitting the audio output signal to the audio speaker.

A recommendation information provision device includes at least one processor that is configured to acquire a result of scoring relating to a user's singing of a musical piece for each section in time; acquire pitch information representing pitches of notes configuring the musical piece in the section; build a learning model predicting a result of scoring relating to the user's singing of a musical piece from the pitch information using the result of scoring and the pitch information as training data; acquire a result of scoring relating to a user's singing of a target musical piece by inputting the pitch information to the learning model while changing pitches of notes into a plurality of types; and output a setting detail of the pitches of the notes as the recommendation information on the basis of results of scoring for the pitch information of the plurality of types.

The present disclosure relates to a sound source file structure, to output lyrics as audible sounds right before melodies corresponding to the lyrics start, to help a user to remind the lyrics based on accompaniment for a song after the accompaniment starts to be provided, and to help the user to sing based on correct lyrics corresponding to the melodies. The sound source file structure may include one or more backing sound source layers in which backing sounds based on beats and rhythms are placed, a melody sound source layer in which melody notes corresponding to lyrics based on beats and rhythms and a rest section corresponding to a rest are placed, and a lyric voice source layer in which a lyric voice is placed at a position corresponding to a rest section.

Exemplary embodiments of the present disclosure are directed towards system for enhancing multimedia content with visual effects based on audio characteristics, comprising computing device comprises multimedia content enhancing module enables end-user to record multimedia content using camera; enables to select audio track and combine with multimedia content recorded; sends audio track and multimedia content recorded to cloud server; cloud server comprising multimedia analyzing and visual effects retrieving module to receive and analyze beat characteristics of audio track and multimedia content recorded; categorize visual effects and filters and deliver to the computing device; multimedia content enhancing module displays categorized visual effects and filters on computing device and enables end-user to select and apply categorized visual effects and filters on multimedia content to create enhanced multimedia content; enables the end-user to share and post enhanced multimedia content on computing device.

Systems, devices, and methods for segmenting musical compositions are described. Discrete, musically-coherent segments (such as intro, verse, chorus, bridge, solo, and the like) of a musical composition are identified. Distance measures are used to evaluate whether each bar of a musical composition is more like the bars that directly precede it or more like the bars that directly succeed it, and each respective series of musically similar bars is assigned to the same respective segment. Large changes in the distance measure(s) between adjacent bars may be used to identify boundaries between abutting musical segments. Computer systems and computer program products for implementing segmentation are also described. The results of segmentation may advantageously be applied in computer-based composition of music and musical variations, as well as in other applications involving labelling, characterizing, or otherwise processing music.

User interface techniques provide user vocalists with mechanisms for solo audiovisual capture and for seeding subsequent performances by other users (e.g., joiners). Audiovisual capture may be against a full-length work or seed spanning much or all of a pre-existing audio (or audiovisual) work and in some cases may mix, to seed further contributions of one or more joiners, a user's captured media content for at least some portions of the audio (or audiovisual) work. A short seed or short segment may span less than all (and in some cases, much less than all) of the audio (or audiovisual) work. For example, a verse, chorus, refrain, hook or other limited “chunk” of an audio (or audiovisual) work may constitute a short seed or short segment. Computational techniques are described that allow a system to automatically identify suitable short seeds or short segments. After audiovisual capture against the short seed or short segment, a resulting, solo or group, full-length or short-form performance may be posted, livestreamed, or otherwise disseminated in a social network.