8 results about "Semitone" patented technology

The invention relates to the technical field of flutes, and discloses a multifunctional semitone conversion flute, which comprises a flute head part, a semitone conversion part and a flute tail part, the semitone conversion part comprises an inner sound hole pipe, an upper handle position semitone switching pipe and a lower handle position semitone switching pipe, wherein the upper handle position semitone switching pipe and the lower handle position semitone switching pipe are rotatably connected to the inner sound hole pipe. Six sound holes are sequentially formed in the inner sound hole tube; a plurality of different upper sound hole groups are formed in the upper handle position semitone switching tube, and at least one of the plurality of upper sound hole groups is provided with semitone holes; a plurality of different lower sound hole groups are formed on the lower handle position semitone switching tube, at least one of the plurality of lower sound hole groups is provided with semitone holes, and each upper sound hole group and each lower sound hole group are respectively provided with three outer sound holes. By rotating the upper handle position semitone switching tube and / or the lower handle position semitone switching tube and arranging the semitone holes in the sound hole group, the semitone can be switched when fingering needs to be changed when different tones are blown, the intonation of the switched semitone is stable, and the problems that the intonation of pressing the semitone is unstable and the technical requirement for a player is high in the prior art are solved.

This invention discloses a modular, keyed wind instrument, belonging to the field of electronic wind instruments. It includes a modular mouthpiece module (for horizontal / vertical blowing), a key module (containing 7-key or 3-key basic units), a speaker module, and optional traditional instrument appearance kits. Through a unified fingering system: the 7-key and 3-key units correspond to fixed solfège syllables, with a default key of C. Pressing the key shifting double keys raises / lowers the key, pressing the octave double keys raises / lowers an octave, and combining the sharp key raises a semitone. This invention achieves a wind instrument with flexible structure, unified fingering, and significantly reduced learning difficulty through modular combination. It contains multiple wind instrument timbres while retaining traditional appearance characteristics, balancing the cultural heritage of traditional instruments with innovative electronic expression.

The invention provides an audio adjustment method and device based on semitone constraint and a storage medium, and relates to the technical field of audio processing. The audio adjustment method based on the semitone constraint comprises the following steps: processing an initial singing audio to obtain a plurality of note segments in the initial singing audio; calculating the pitch deviation between each note segment and the adjacent note segment to obtain the pitch deviation corresponding to each note segment; if the pitch deviation corresponding to the target note segment is not within the preset pitch deviation range, determining a target semitone from a plurality of preset semitone grids; and according to the target semitone, performing pitch adjustment on the target note segment to obtain a first target singing audio. The pitch deviation corresponding to each note segment is obtained through calculation, the pitch deviation corresponding to each note segment can reflect local continuity and stability, the target semitone is determined based on the pitch deviation corresponding to each note segment, pitch adjustment is carried out, lattice jumping and step feeling can be avoided, and then the pitch calibration effect can be improved.

This utility model discloses a keyed bass flute, comprising a flute tube with an inner diameter of 20 mm, a blowhole section and a sound-producing section, the sound-producing section being 605 mm long. The blowhole section has a blowhole and a membrane hole. The sound-producing section, along its length, has twelve finger holes, a fundamental tone hole, and a rear sound hole. The twelve finger holes, from the fundamental tone hole to the membrane hole, are arranged in the following order: first little finger finger hole, first ring finger finger hole, first middle finger finger hole, first index finger finger hole, first interlocking key finger hole, second little finger finger hole, second ring finger finger hole, second middle finger hole, second interlocking key finger hole, second thumb finger hole, second index finger hole, and thumb single-key finger hole. This keyed bass flute, through simple keying and adjustment of the ratio of inner diameter to tube length, achieves the requirements of twelve-tone equal temperament, making modulation convenient. Each semitone has a finger hole, ensuring accurate modulation.

The application discloses a kind of miniature full-function portable electronic musical instrument and its performance control method, it is related to electronic musical instrument technical field, it aims at solving the pain point that the number of existing musical instrument key and functional integrity, entry threshold and professional expansibility cannot be considered, and transposition operation is complex.The application adopts split type double-end design, and 3 core note keys are arranged at both ends, 7 natural tone levels and chord level numbers under the first key system are mapped by 3-bit binary coding, the first key mapping module of built-in musical name, singing name and chord level number is independent, transposition without changing fingering under full tonality is realized;Through 360° rocker assembly separation semitone accurate control and diapason emotion expression, complete performance function is realized in the volume of not more than 90mm×55mm×22mm.The application considers zero threshold entry and professional creation demand, can form full-dimension complement with traditional musical instrument, and is suitable for full-scene music performance and creation.

The invention provides an automatic reasoning audio correction Chinese zither melody generation method. The method comprises the following steps: S1, constructing a rule base and a tone-up / tone-down semitone mapping relation formula according to Chinese zither characteristics; s2, performing frame-level fundamental frequency extraction on the humming audio by adopting a PYIN algorithm to obtain pitch features; (S3); obtaining a minimum up / down tone value through a mapping relation formula, selecting an optimal up / down tone semitone value according to an effect, carrying out overall up / down tone processing on the audio by combining an improved spectrum resampling technology, and extracting beat information; s4, mapping the processed pitch sequence into Chinese zither notes; s5, according to the beat information, the duration information of each frame and the features perceived by the minimum length of the human ear, filtering and merging and stop sound optimization are carried out, and structured notes are generated; s6, according to the constructed rule base, adding feasible Chinese zither skills to construct a preliminary Chinese zither melody; and S7, performing dynamic gain adjustment on the zither melody audio through the frame-level RMS loudness envelope.

The present invention provides an automatic arrangement method, an automatic arrangement device, and a computer program product, which can produce arrangement data that is easy to play and has a reduced number of simultaneously sounding notes from musical piece data. The present invention determines an outer sound symbol, and the outer sound symbol is the highest in pitch among notes that have substantially the same sounding start time in a melody part obtained from the musical piece data. A melody part from which an inner sound symbol is deleted is produced, and the inner sound symbol starts to sound during the sounding period of the outer sound symbol and is low in pitch. For each pitch range in which the pitch range of one octave is staggered by one semitone, a candidate accompaniment part in which the root notes of each chord of the chord data of the musical piece data are arranged to sound at their sounding timing is produced, and an accompaniment part is selected therefrom. The arrangement data obtained from the melody part and the accompaniment part can be set as arrangement data that is easy to play and has a reduced number of simultaneously sounding notes.

The utility model provides a multifunctional nine-tone hole wind instrument. A first positive hole, a second positive hole, a third positive hole, a fourth positive hole, a fifth positive hole and a sixth positive hole are sequentially formed in the front face of a pipe body in the axial direction. A first side hole and a second side hole are formed in the side face of the pipe body, and the first side hole is located on the lower right side of the first front hole. The side hole II is positioned on the left lower side between the positive hole III and the positive hole IV; a back face hole is formed in the back face of the pipe body. According to the utility model, nine sound holes are arranged on the tube body, and each sound hole can be used as 1; the third hole, the fifth hole and the sixth hole of the front hole or the half hole can be used as 1, 12 tones can be played in total, and a strong half scale playing function is achieved. And the horn mouth-shaped conical tube structure at the upper end opening of the tube body can directly produce sound through lip vibration, and can also be inserted into a reed similar to a suona horn to produce sound. 1-6 tone setting holes can be selectively arranged at the lower end of the musical instrument according to different requirements of tone setting, so that not only can the traditional music style be played, but also the western 12-semitone musical instrument can be smoothly played, and the requirements of modern music creation and tone modulation playing are met.