36 results about "Note value" patented technology

The invention discloses a keyboard musical instrument playing guidance system and a teaching method. The keyboard musical instrument playing guidance system comprises a main control chip, a storage device, a key detection device, a real-time reminding device, a plurality of indicating devices, a transcoding device, an MIDI (Musical Instrument Digital Interface) synthesizer, an audio decoder, an audio amplifier, an audio output device and a recording device. When the keyboard musical instrument playing guidance system and the teaching method are applied, music information in the storage device is sent to the main control chip, playing information is preprocessed by the main control chip and then transmitted to the indicating devices to indicate the press-down time and the note value of keys at corresponding positions, and the indicating devices intuitively prompt a user of the keys to be played and the playing time, thus solving the problem of difficulty in self-determination exercise of a player. Meanwhile, a real-time reminding unit can remind whether the player plays correctly in time, so that a better learning effect is achieved, the player can master the rhythm of music score notes better, and the threshold of self learning is greatly reduced.

A method and device to aid musicians interested in composition, improvisation, and music theory. Various embodiments provide interactive reference tools that organize musical concepts including chord harmonies, chord progressions, cord substitutions, modes, key transpositions, and alternative scales, illustrating how these aspects of music theory are related. A cylindrical first surface having presented upon it musical information in the form of columns of note values and / or intervals may be positioned inside a cylindrical second surface. A second surface, a cylindrical sleeve, may have presented upon it one or more music reference tools which display music theoretic forms and structures in a key-independent manner. The surfaces may comprise printable surfaces on which the musical information and reference tools may be printed, or a digital display device on which the musical information and reference tools may be displayed. The second surface may be proximate to the first surface such that the second surface may be operable to slide over the first surface. The second surface may include various transparent and opaque areas, such that when the second surface is moved over the first surface, a portion of the musical information on the first surface may be viewable through the transparent areas of the second surface. The music reference tools and the viewable portion of the musical information may be operable to display music theoretic forms for particular keys, wherein the key-specific music theoretic forms vary as a function of the position of the second surface with respect to the first surface.

Methods, systems, and devices are described for automatically converting audio input signal data into musical score representation data. Embodiments of the invention identify a change in frequency information from the audio signal that exceeds a first threshold value; identify a change in amplitude information from the audio signal that exceeds a second threshold value; and generate a note onset event, each note onset event representing a time location in the audio signal of at least one of an identified change in the frequency information that exceeds the first threshold value or an identified change in the amplitude information that exceeds the second threshold value. The generation of note onset events and other information from the audio input signal may be used to extract note pitch,note value, tempo, meter, key, instrumentation, and other score representation information.

The present invention discloses a method and device for generating lyrics files. The method comprises: obtaining note information of a target midi file, wherein the note information consists of the note values of notes in the target midi file and a pair of play starting time and play time of duration having an incidence relation and corresponding to each note value; obtaining lyrics text data corresponding to the target midi file; and corresponding to lyrics characters in the lyrics text data to the note information in the target midi file, and obtaining a lyrics file, wherein each lyrics character in the lyrics file corresponds to one or more than one note values. According to the invention, the technical problem is solved that the play time of the notes in the generated lyrics file is not accurate.

The invention discloses a singing skill detection system for vocal music teaching. The singing skill detection system comprises a sound acquisition module, a throat position detection module, a characteristic signal acquisition module, a data processing module, a sound processing module, a pitch extractor, a beat extractor, an overtone feature extraction module , a note pitch and note value model construction module, a singing skill primary evaluation module, a singing skill comprehensive evaluation module, an expert decision-making module, and a central processor. The singing skill detection system completes data acquisition and evaluation during an entire singing skill detection process based on a computer system, is high in automation level, and wide in coverage. The throat position and stability, tone quality, audio penetration, overtone utilization and pronunciation retaining in singing can be detected and analyzed in one time, thereby providing a targeted training scheme.

The embodiments of the invention disclose a song audio splicing method and device. The method includes the following steps that: the singing audio data of a plurality of users for a target song are obtained, wherein the singing audio data contain acappella audio data of each phrase of the target song; the fundamental frequency information of the acappella audio data of each phrase sung by the users is extracted, music note value sequences corresponding to the fundamental frequency information of the acappella audio data of each phrase sung by different users are obtained; the fundamental frequency range sum of the acappella audio data of a target phrase sung by a target user in the users is calculated according to the music note value sequences; phrase acappella audio data corresponding to the target phrase in the target song are determined from the acappella audio data of the target phrase sung by the users; and the spliced audio data of the target song are generated according to the phrase acappella audio data corresponding to each phrase of the target song. With the song audio splicing method and device of the invention adopted, the spliced audio data of the target song can be generated, and the utilization rate of the acappella audio data can be improved.

The embodiment of the invention discloses a song climax fragment identification method and device. The method comprises the following steps: sampling an audio file of a song, according to the note time value and the rhythm type of the song, dividing the sampling data of the song into sampling data of a plurality of audio paragraphs, obtaining a chord corresponding to the audio paragraph accordingto the sampling data of the audio paragraphs, determining a chord period included in the climax fragment according to the chord trend of the song and the chord corresponding to the audio paragraph, correcting the chord period included in the climax fragment according to the lyric data of the song to obtain a chord period included in the climax fragment, and finally identifying a part, corresponding to the chord period included in the climax fragment after correction, of the song as the climax fragment of the song. According to the method and the device, the climax fragments of the song are identified based on essential factors of the song, such as note time values, rhythm types and chord trends, so that the identification accuracy of the climax fragments of the song is improved.

The invention belongs to the field of music, in particular relates to a method for processing electronic musical instrument signals and a system for processing the electronic musical instrument signals, wherein signals which are simultaneously played by a plurality of electronic musical instruments can be processed through the method and the system. The method for processing the electronic musical instrument signals comprises the following steps of: determining more than two electronic musical instruments which are prepared for playing; determining a common playing mode of the more than two electronic musical instruments; prompting playing information according to the determined common playing mode; receiving MIDI (Musical Instrument Digital Interface) signals which are respectively generated by the more than two electronic musical instruments according to the playing information, wherein each MIDI signal comprises one or more of transmission strength, note value, speed and pitch; and evaluating the accuracy of the MIDI signals which are respectively sent by the more than two electronic musical instruments to obtain evaluation results according to the predetermined common playing mode. The system for processing electronic musical instrument signals comprises an instrument determining module, a mode determining module, a display, a multi-port receiver and an evaluation module.

The invention discloses a trill identification method and a trill identification device. The trill identification method comprises steps that target audio data corresponding to a target song comprising at least one identification note is acquired; the audio data fragment of the target audio data corresponding to the identification note is extracted, and the first fundamental frequency of the audio data fragment is extracted, and then a corresponding first note value sequence is acquired; the first note value sequence is divided into at least two note value sequence fragments according to at least one preset periodic value, and by aiming at every preset periodic value, a note distance between the two adjacent note value sequence fragments of the at least two note value sequence fragments is calculated, and is used as the periodic note distance corresponding to the periodic value; the minimum value of the periodic note distance is determined, and a target period corresponding to the minimum value is acquired; when the target period is smaller than a preset periodic threshold value, the target audio data is determined to be trill audio data. By adopting the trill identification method and the trill identification device, the identification of the trills of the audio data is realized.

Methods, systems, and devices are described for automatically converting audio input signal data into musical score representation data. Embodiments of the invention identify a change in frequency information from the audio signal that exceeds a first threshold value; identify a change in amplitude information from the audio signal that exceeds a second threshold value; and generate a note onset event, each note onset event representing a time location in the audio signal of at least one of an identified change in the frequency information that exceeds the first threshold value or an identified change in the amplitude information that exceeds the second threshold value. The generation of note onset events and other information from the audio input signal may be used to extract note pitch, note value, tempo, meter, key, instrumentation, and other score representation information.

A music and math teaching system teaches fraction computations utilizing musical note names and note values in the form of blocks with varying lengths while simultaneously teaching rhythmic topics of time signatures, beats, and tempo. A rhythm board is used to mount note blocks and beat blocks in the process and a blind is used to block the vision of a student working with the blocks.

A method and an information processing apparatus to generate a digital score file of a song are described. The information processing apparatus includes processing circuitry. The processing circuitry is configured to obtain a candidate audio file satisfying a first condition from audio files of unaccompanied singing of the song without instrumental accompaniment. The processing circuitry is configured to divide the candidate audio file into valid audio segments based on timing information of the song, and extract pieces of music note information from the valid audio segments. Each of the pieces of music note information includes at least one data set of a music note in the song. The data set includes an onset time, a duration, and a music note value of the music note. The processing circuitry is configured to generate the digital score file based on the pieces of music note information.

A stringed instrument tuner that detects vibrations of the string being played via an integrated circuit and displays the nearest musical note value and the deviation of that strings pitch relative to an in-tune reference pitch This tuner has a clothes pin like design that allows it to be easily mounted on a stringed instrument, such as a guitar, by squeezing the top legs of the device and applying pressure to the coil mechanism to exert force on the lower jaws so that that they open up to allow clamping and securement onto the instrument. The electronics housing is built into one of the legs of the clothes pin tuner adjacent to where the user squeezes the clothes pin with their thumb. The electronics housing contains an integrated circuit, battery, and LED display

The invention is suitable for the technical field of data processing, and provides a rhythm generating method and a rhythm generating device based on voice synthesis, a terminal device and a computerreadable storage medium. The method comprises the following steps: acquiring the target lyrics, the beat type and the bar number, and calculating the note value of the rhythm according to the beat type and the bar number; acquiring at least two preset notes, generating at least two simulated rhythms based on the target lyrics, the note value of the rhythm and the at least two preset notes, and scoring each simulated rhythm, thus obtaining the rhythm scores, wherein each character in the target lyrics corresponds to at least one preset note; and determining the simulated rhythm corresponding tothe maximal rhythm score value as the target rhythm, and outputting the target rhythm. According to the technical scheme, by automatically generating the rhythm and preferentially selecting the rhythm with the high score, the convenience and accuracy of rhythm generation are promoted.

The invention provides a note value prompting method and system and an electronic device thereof. The method includes the steps of selecting to-be-trained notes and beats; displaying a section or multiple sections of tracks with note prompting marks and a movable light spot on a display interface of the electronic device, wherein the note prompting marks are correspondingly set on the tracks according to the to-be-trained notes; prompting people to play the to-be-trained notes according to the beats and the to-be-trained notes; making the light spot move along the tracks when training starts; promoting people to play the to-be-trained notes when the light spot moves to the note prompting marks. People are prompted of the value lengths of the to-be-trained notes on the two aspects of visual sense and auditory sense, students can more visually understand and study the values of different notes, and the self-study of the students is more convenient.

The invention relates to a nautical chart isobath simplification safety assessment method comprising the following steps: reading plane positions of all nodes on a pre-simplified isobath of the nautical chart; determining a shoal water zone and a deepwater zone of the pre-simplified isobath according to water depth noted values of two sides of the pre-simplified isobath of the nautical chart; reading the plane positions of all nodes of the corresponding simplified isobath on the nautical chart; using space analysis to obtain the depth expansion sections of the simplified isobath in the deepwater zone; building one or more depth expansion areas formed by the depth expansion sections crossing with the pre-simplified isobath; respectively calculating the total length of the simplified isobath, the total length of the depth expansion sections, and the total area of the depth expansion areas; calculating an isobath simplification depth expansion length percentage and an average depth expansion distance, and using the two indexes to quantitatively assess the nautical chart isobath simplification safety.

A monitoring method and system. The method includes receiving by a software application within a computing system, data comprising a first data point associated with an operating parameter for a characteristic associated with the computing system. The software application converts the data point into a mathematical value and associates the mathematical value with a scaled value. The software application associates the scaled value with a first timbre and a harmonic interval and generates a first musical note value from the scaled value. The first musical note value is transmitted to an amplifier device within the computing system. The amplifier device generates a first audible musical note from the first musical note value and presents the first audible musical note to a user of the computing system.

The invention discloses an electronic music score editing system, which comprises a man-machine interaction module, a music score parameter editing module, a music score generating module and a musicscore playing module, wherein the man-machine interaction module is used for a user to register and log in, to meet various inquiry requirements and to input relevant control commands; the music scoreediting module is used for inputting notes, pitches and note values in a blank filling mode; the music score generating module is used for forming a group of (note pitch model and note value model) sequences according to the notes, the pitches and the note values input by the music score parameter editing module, and generating a corresponding music score according to the sequences; and the musicscore playing module is used for converting the music scores into an audio format to be played. The notes, the pitches and the note values in the music scores are input in the blank filling mode, sothat the automatic generation of the music score can be realized; great convenience is brought to the use by the user; and the edition of electronic music score resources in various formats can be realized.

The invention discloses a novel optimal music score note rapid positioning algorithm device and a novel optical music score note rapid positioning algorithm method. Staff is currently a universal musical work musical notation method in the world. A note value of a note means indicates the corresponding position of a note head in five lines of the staff according to a sound specifically produced by the note. The number of factors determining the specific position of the note head of the note in the five lines of the staff is great, and the factors commonly determine the final positioning of the note head according to certain combined computational relationships. The novel optimal music score note rapid positioning algorithm device and the novel optical music score note rapid positioning algorithm method provided by the invention are accurate in note positioning. The method comprises the following steps of: establishing a coordinate system according to the staff, and dividing the coordinate ranges of each musical clef and each tone mark; determining the coordinate range of the musical clef according to the musical clef; determining the coordinate range of the tone mark according to the tone mark; and determining a final note position according to the ranges of the musical clef and the tone mark. The invention is a technical innovation in the field of electronic musical score development.

The invention relates to big data analysis and provides a poetry melody generating method, an electronic device and a computer-readable storage medium. The method comprises a step of constructing a sample music library for storing poem samples and soundtrack samples, a step of extracting poetic sample structure features to form a sample structure feature matrix, a step of extracting high pitch ofsoundtrack samples to form a high pitch matrix, a step of constructing a first probability matrix of the correspondence between the structural features and high pitch and a second probability matrix of a transition relationship between adjacent pitches, a step of constructing a new poetry feature matrix without a soundtrack, a step of generating a new poetry pitch sequence through the first probabilistic matrix and the second probability matrix according to the above structure feature matrix, a step of randomly selecting a soundtrack sample segment, orderly extracting note time values and obtaining a new poetry time value sequence, a step of constructing a new poetry initial melody sequence through the new poetry pitch sequence and the time value sequence, and a step of selecting a melodysequence of a soundtrack sample corresponding to a poetic sample with the highest structural feature matching degree and the initial melody sequence to perform genetic exchange operation to obtain thefinal melody of a new poetry.

The invention discloses an end-to-end music score note identification method based on deep learning. The method is divided into three steps in total: (1) data preprocessing: downloading a corresponding data set from MuseScore, and recoding pitch and value labels; and (2) data enhancement: performing data enhancement on the recoded music score data; the invention providing four different enhancement methods; and (3) an end-to-end model: using a deep convolutional neural network model for end-to-end music score note identification, inputting the enhanced data into the model, and the output of the model being the note value and pitch. The music score note recognition model based on deep learning is provided for the printed music score, namely, the whole music score image is input into the model, the value and pitch of notes on the music score are directly output, the model is completely end-to-end, and the multi-voicemusic score image can be accurately identified.

Music data is easily and positively produced from a melody the user imagined to himself / herself, without the need of musical expertise. Accepted are an input of a melody voice the user is singing to himself / herself and a key depression corresponding to a rhythm of the melody voice to be inputted. Depending upon a timing of the accepted key depression, voice pitch and note value are extracted from the melody voice. The produced music data is format-changed into a file for outputting at a terminal unit, and then sent toward the terminal unit.

The invention discloses a trill identification method and a trill identification device. The trill identification method comprises steps that target audio data corresponding to a target song comprising at least one identification note is acquired; the audio data fragment of the target audio data corresponding to the identification note is extracted, and the first fundamental frequency of the audio data fragment is extracted, and then a corresponding first note value sequence is acquired; the first note value sequence is divided into at least two note value sequence fragments according to at least one preset periodic value, and by aiming at every preset periodic value, a note distance between the two adjacent note value sequence fragments of the at least two note value sequence fragments is calculated, and is used as the periodic note distance corresponding to the periodic value; the minimum value of the periodic note distance is determined, and a target period corresponding to the minimum value is acquired; when the target period is smaller than a preset periodic threshold value, the target audio data is determined to be trill audio data. By adopting the trill identification method and the trill identification device, the identification of the trills of the audio data is realized.

The invention discloses a notation method for video animation, and relates to a music score notation method in the field of music. A staff, a numbered musical notation or other musical score notation methods are expression methods for notation reading using paper, and a musical note of the musical sore in the video cannot move; the notation method for the video animation combines the staff and the numbered musical notation, regroups the shape and the structure, removes the poor and retains the good; and music score which can move and be played in a video is created through the computer animation method. The moving score can accurately grasp the duration value of the music note during a motion; the visually moving score can guide the speed of standard rhythm notation for notation reading and singing; auditory electronic background guides the high and low for notation reading and singing, so that a person that cannot read notation can sing a new song as long as the person can read the lyrics.

The invention discloses an automatic playing method and device of a stringed musical instrument. The method comprises the steps of generating a machine-visualized music score image according to a music score image, wherein the machine-visualized music score image comprises a time value region and a note matrix region, and each row of the note matrix region corresponds to each string of a to-be-played stringed musical instrument, obtaining the row where the note numerical value of each column of the note matrix region is located and the note time value corresponding to each column, determininga string plucking rule of a string plucking mechanism of the playing device, and obtaining the note numerical value of each column of the note matrix region, the row where the note numerical value islocated and the note time value corresponding to each column, and determining the string pressing rule of the string pressing mechanism of the playing device. Automatic identification and automatic playing of the music score by a machine are realized, complex operation of manually inputting music score data is avoided, and time and manpower are saved; the automation degree of stringed musical instrument playing is improved, and the consistency and reliability of stringed musical instrument playing are guaranteed.