[Object] To provide a mechanism capable of characterizing data appropriately. [Solution] An information processing apparatus includes: an acquisition section that acquires first feature information, to which meaning is assigned, and second feature information, to which meaning is not assigned; and a generation section that generates time-series data having features indicated by the first feature information and the second feature information acquired by the acquisition section.

Collaboratively creating musical harmonies includes receiving a user selection of a particular harmony. In response to this selection, there is displayed on a display screen of a computing device a plurality of musical note indicators or notes to specify a first harmony part of a musical piece to be performed. Real-time pitch detection is used to determine a pitch of each note which is voiced by a person, and a graphic indication of the actual pitch which is sung is displayed in conjunction with the musical note indicators.

A method of monitoring an operating event of a combustion engine includes receiving a noise signal sensed by a knock sensor disposed in or proximate to the combustion engine, correlating the noise signal with a musical instrument digital interface (MIDI) fingerprint having at least an ADSR envelope indicative of the operating event, and detecting if the operating event has occurred based on the correlating of the noise signal with the fingerprint.

Provided is an apparatus for providing an accompaniment based on a humming melody. The apparatus includes a user input receiver configured to receive a humming melody of a user, a melody extractor configured to measure a pitch from the received humming melody, a key extractor configured to extract a key from the humming melody, and a chord generator configured to generate a chord for each measure based on the humming melody.

A method and system for visualizing music using a perceptually conformal mapping system are provided. A music source file is input into a processor configured to carry out a series of steps on audio cues identified within the music and ultimately generate a simultaneous visual representation on a display device. The series of steps include application of one or more perceptually conformal mapping systems that essentially induce a synesthetic experience in which a person can experience music both acoustically and visually at the same time. The device extracts cues from the music that are designed to specifically capture fundamentals of human appreciation, maps them into visual cues, then presents those visual cues synchronized with the source music.

Method for transcription of voiced musical note includes segmenting an electronic audio signal into a plurality of musical note segments, and sampling each note segment to obtain a plurality of audio samples. For each audio sample, an autocorrelation is computed to determine a probability value associated with certain audio frequencies contained within the audio sample. Local maxima are identified in the energy associated with one or more audio frequencies comprising each audio sample and a corrective function applied to reduce the occurrence of octave errors. A true pitch of each note segment is then determined by converting the pitch identification problem to one involving a shortest path through a graph or network of node. Edge weights are computed for a plurality of adjacent nodes i, j comprising the graph, where each node represents one of the musical note segments.

A method of generating a musical score file for one or more target musical instruments with a score generation component based on input audio data. The score generation component finds candidate musical notes within the input audio data using a frequency analysis to identify segments that share substantially the same audio frequency, and finds a best match for those candidate musical notes in audio data associated with target musical instruments in a sound database. A generated musical score file can be printed as sheet music or audibly played back over speakers.

A method for selectively muting a portion of a digital audio file has a user account that is associated to a PC device and is managed by a remote server. The system for executing the method has a set of playback modulation processes that enable the user to control how an audio file is played. The method begins by inputting the audio file into a splitter process in order to identify a set of distinct audio tracks. The method then identifies every word found in the audio file and synchronizes a textual transcript of the words with a timeline of the song. The user is then prompted to mute a desired track from the set of distinct audio tracks. Additionally, the user can select a desired process to further manipulate one or more distinct tracks from the set of distinct audio tracks.

A system for music transcription that includes: a musical instrument; a computer; a communication link between the musical instrument and the computer; and software residing on memory within the computer adapted to interpret audio sound from the musical instrument and transcript musical notes onto a visible music scale. The musical notes are transcribed onto a treble clef and a bass clef, where the musical instrument includes at least one of a guitar, keyboard, horn, woodwind or other musical instrument. A tablature may also be provided for a stringed instrument. The communication link includes a microphone on the computer, where the microphone transmits music to a processor for interpretation.

A method and system for automatically generating the lyrics of a song is provided to reduce the time and cost of song transcription. The method may include isolating vocal content from instrumental content for a provided audio input. The vocal content may be processed or normalized to obtain a natural vocal content. A speech recognizer may then be utilized to transcribe a plurality of words of the natural vocal content. The plurality of words may then be organized and saved as a lyric time code. The lyric time code may be stored with an audio file or used to generate dynamic outputs associated with the vocal content. The system may include hardware and software to provide deep neural networks used by artificial intelligence to carry out steps of the method.