22 results about "Musical tone" patented technology

According to one aspect of the present invention, an electronic musical instrument generates a string tone signal output from one of the left and right channels based on an input excitation signal corresponding to a specified pitch, and generates a string tone signal output from the other of the left and right channels based on an accumulated signal obtained by accumulating the outputs of the first closed-loop circuit (36A-39A), the second closed-loop circuit (36B-39B), and the third closed-loop circuit (36D-39D) arranged corresponding to the pitch.

The application discloses a piano music segmentation and note recognition algorithm based on a deep learning network, and comprises the following steps: based on a recurrent neural network, obtaining the starting point of each single tone from a continuous piano audio; according to the starting point of each single tone, segmenting a complete piano audio signal into several single tone audios; constructing an audio data set for pitch recognition; pre-processing signals in the audio data set, drawing a transformed spectrogram, and simultaneously segmenting the spectrogram according to the frequency band of each fundamental frequency to obtain a sub-spectrogram; taking the multiple sub-spectrograms segmented from the spectrogram as input, and recognizing the pitch through multiple convolutional neural networks. Compared with a traditional time domain method, the application no longer depends on the selection of a threshold, improves the generalization ability, compared with a traditional frequency domain method, simplifies the calculation process, and improves the running speed.

This invention relates to the field of music education technology, specifically to a musical instrument playing training system and method based on real-time pitch monitoring. The system includes a musical instrument acoustic waveform analysis module, a tuning frequency tracking module, a pitch deviation analysis module, a muscle memory reshaping guidance module, and a musical instrument mastery blind spot positioning module. In this invention, by sensing the vibration envelope and reconstructing the energy distribution of the overtone series, the core musical tone components are accurately extracted from a complex acoustic environment, improving the accuracy of fundamental frequency identification and enhancing the ability to capture microscopic pitch drift. This effectively solves the problem of poor anti-interference in traditional detection methods, transforming pitch deviation into a concrete physiological cause analysis, optimizing the depth of performance mechanism analysis and enhancing the physical correction directionality. It achieves precise integration of correction actions and performance rhythm, ensuring the scientific nature of muscle memory reshaping and significantly reducing functional pitch deviation. By tracking the rate of movement deformation and tracing the source of technical bottlenecks, it optimizes musical instrument mastery and improves the level of intelligent music training.

An electronic percussion instrument, a control device for the electronic percussion instrument, and a control method thereof are capable of localizing a sound image in a manner that a sound is heard from a place where a percussion is struck. The control device for the electronic percussion instrument inputs a musical sound signal corresponding to a percussion on a percussion surface to a first amplifier for amplifying a signal connected to a first speaker disposed on a back side or around a first percussion surface, and inputs the musical sound signal to a second amplifier for amplifying a signal connected to a second speaker disposed on the back side or around the first percussion surface at a timing later than a timing of input to the first amplifier.

An electromagnetic wave musical sound sensing control system comprises an electromagnetic wave transceiver, a microcontroller, a band-pass filter, a down-conversion module, an audio power amplifier and a loudspeaker. The system is based on the FMCW radar principle, and the distance between the hand and the radar is linearly mapped into an intermediate frequency signal; carrying out splicing processing on intermediate frequency signals of data truncation between Chirp through a missing segment backfilling algorithm based on template matching, and eliminating time domain discontinuity; after 20kHz band-pass filtering, the intermediate frequency is down-converted to a range which can be perceived by human ears of 20Hz-20kHz by using an analog multiplier and a low-pass filter, and a loudspeaker is driven to produce sound; pitch changes in real time along with the gesture distance, and non-contact audio interaction is achieved; the system has the advantages of real-time response, continuous and natural tone and simple structure, and is suitable for scenes of music interaction, education, rehabilitation and the like.

Systems, methods, and apparatuses for imprinting a predefined pattern in a freshly rolled or heated asphalt surface of a traffic lane to create varying frequencies that produces musical notes are descried. A ridged steel, grid-like template can be progressively compressed into a roadway's heated and pliable asphalt surface using a drum roller or other surface compactor. The template is then manually lifted clear of the asphalt surface and the asphalt is allowed to cool to its natural hardened state. What results is a linear pattern of divots imprinted into about one-third width of either the right or left side of the traffic lane. The patterned asphalt surface can be treated with a thin coating of colored coating or legends and symbols to enhance the location of the musical notes on the roadway.

The application relates to a pitch estimation method based on a compression excitation block, which converts an audio file into a log-mel spectrogram, so that the input audio is converted into a high-level representation easier for a machine to understand, redundant information is screened out, and information helpful to pitch extraction is retained and strengthened. A compression excitation block is used to extract features of the log-mel spectrogram, and global features of the audio are extracted; meanwhile, a self-attention mechanism is introduced to extract important local features, a pitch representation corresponding to the input audio is obtained through a coding-decoding structure, a pitch probability matrix is obtained through an estimation module, and finally, a pitch estimation result of the audio file is determined according to the pitch probability matrix. The application effectively solves the problem of difficult pitch estimation of opera audio, and improves the accuracy of the pitch prediction result of human voice music.

A musical tone signal generation apparatus, method, and storage medium that utilizes an all-pass filter for efficient processing. The method involves setting a first delay unit that generates a delay corresponding to a specified pitch, setting its pre-stage delay unit as a 0th delay unit, and its post-stage delay unit as a 2nd delay unit. At least three fractional delay blocks are connected to the first, 0th, and 2nd delay units, respectively. In a scenario where, based on a change in the specified pitch, one of the 0th and 2nd delay units is set as a new first delay unit, and the pre-stage delay unit of the new first delay unit is set as a new 0th delay unit, and the post-stage delay unit of the new first delay unit is set as a new 2nd delay unit, one of the 0th and 2nd delay units continues to be connected to the fractional delay blocks, and at least one of the new 0th and new 2nd delay units is then changed to be connected to at least one of the fractional delay blocks other than the fractional delay block connected to the new first delay unit.

An electronic wind instrument and a control method thereof are provided, which can switch between a need for breathing and no need for breathing by a simple operation. The electronic wind instrument includes an acquisition section that acquires an operation on a performance operation element, a breathing detection section that detects breathing, and a control section that generates a musical sound signal in accordance with at least either of the detected breathing and the operation acquired by the acquisition section. The control section switches between a first mode in which the detection of the breathing is a condition for generating a musical sound signal and a second mode in which a musical sound signal is generated based on the operation regardless of the detection of the breathing in accordance with a result of the detection of the breathing.

The application discloses a noise resistance and adaptability measuring method based on beta band time gradient measurement, characterized in that two types of abnormal data sensing test tasks, i.e., a music condition and a noise condition, are set, and the brain electrical signals of the tested personnel in the two types of tasks are collected; the baseline normalized band power average value of the beta band in the time window of 300-400 ms in the Fz channel of the tested personnel under different tasks is calculated; the minimum time gradient serial number between the beta power of the music.abnormal and the noise.abnormal, the music.normal and the noise.normal is calculated respectively; the smaller the minimum time gradient serial number, the stronger the noise resistance; if the minimum time gradient serial number is smaller, the stronger the noise adaptability; if the same tested personnel is represented as noise.normal, the tested personnel is of a normal sensitive type to noise; if the same tested personnel is represented as noise.hyper, the tested personnel is of a hyper sensitive type to noise; and the method has the advantages that the noise resistance and adaptability of the tested personnel are objectively and directly evaluated.

Provided are an electronic musical instrument, a musical sound output method, and a musical sound output program capable of independently generating different musical sounds, that is, a normal musical sound and a special musical sound, through an operation on a single key. In a case where the position of a key becomes equal to or lower than a sound generation start position while the speed of the key is maintained higher than a speed threshold value, the normal musical sound of the key is generated while the special musical sound is not generated. In a case where the speed becomes equal to or lower than the speed threshold value before the position of the key reaches the sound generation start position, the special musical sound of the is generated while the normal musical sound is not generated.

The invention relates to the technical field of chimes, in particular to a harmonic therapeutic healing health-care chime which comprises a suspension bracket, a chime group composed of a plurality of U-shaped sound tubes is suspended on the suspension bracket, openings of the U-shaped sound tubes are arranged downwards, and musical scales of the chime group adopt musical sound sequence combination with the fundamental frequency of 380Hz-500Hz. The chime provided by the invention adopts a pure yellow clock 432Hz fundamental frequency musical sound sequence combination, the smooth rhythm and penetrating power of the chime can effectively soothe the body, relax nerves and promote cell and body repair, and ultrasonic waves, infrasonic waves, second-order harmonic waves and third-order harmonic waves generated during playing can deconstruct and kill microorganisms and viruses, so that the therapeutic and healing value of expelling evil and eliminating diseases is fully exerted, and the chime has a good application prospect. The problem that a traditional chime is difficult to accurately adapt to the modern health care acoustic therapy and healing requirements is solved.

The invention discloses a multifunctional electronic musical instrument which comprises a fingerboard area which is arranged in a multi-string and multi-product matrix mode and comprises a plurality of fingerboard keys, a first tone key area which comprises a plurality of first tone keys which are linearly arranged along a first direction, and a second tone key area which comprises a plurality of second tone keys which are linearly arranged along a second direction, the pronunciation module is used for outputting musical sound; the control module is electrically connected with the fingerboard key, the first tone key and the sounding module respectively; the control module is configured to respond to continuous pressing of the fingerboard key in a preset continuous mode, and control the pronunciation module to output continuous tenuto; and in response to triggering of any first tone key, controlling the pronunciation module to make a single tone with a corresponding pitch. Two-hand cooperation of musical instrument playing is achieved, meanwhile, continuous tenuto of the fingerboard area and single tone of the first tone key area are combined, fingering is simple, the fingerboard area is arranged in a multi-string and multi-product mode, grades and string position pitches are distinguished, the keys are adopted, operation of a player is facilitated, and unification and high efficiency of musical instrument playing are achieved.

The invention discloses a noise resistance and adaptive capacity measuring method based on beta-band time gradient measurement, which is characterized by comprising the following steps of: setting two types of abnormal data perception test tasks of musical sound conditions and noise conditions, and collecting electroencephalogram signals of a tested person in the two types of tasks; calculating a normalized band power average value of a base line of a beta band within a time window of 300-400ms in an Fz channel under different tasks of the tested personnel; the smaller the minimum time gradient sequence number of beta power having no statistical difference between the abnormal, the musical sound, the normal and the noise is, the higher the noise resistance capability is, and the smaller the minimum time gradient sequence number of beta power having no statistical difference between the abnormal, the musical sound, the normal and the noise is; if the noise is smaller, the noise adaptability is higher; if the same person to be tested is detected, the person to be tested is in a noise normal sensitive type; if yes, the detected person is in a noise hypersensitive type; the method has the advantage of objectively and directly evaluating the noise resistance and adaptability of the tested person.

The invention discloses a control method of an electronic musical instrument, the electronic musical instrument and a computer readable storage medium. The method comprises the following steps: loading a drum musical sound to be played in response to a preset operation; and controlling the electronic musical instrument to synchronously play the target musical sound and the drum musical sound in response to the playing operation of the target musical sound under the condition that the drum musical sound to be played is loaded. Therefore, in response to the preset operation, the drum musical sound to be played can be loaded, so that the drum musical sound to be played can be loaded in advance, the drum musical sound can be synchronously played under the condition that the electronic musical instrument is controlled to play the target musical sound, and then the synchronism of playing actions and effects is guaranteed to a certain extent. Moreover, compared with the mode that playing is interrupted to trigger the drum machine, the electronic musical instrument can be controlled to synchronously play the drum machine musical sound in response to the playing operation of the target musical sound under the condition that the drum machine musical sound to be played is loaded, and a user does not need to interrupt playing, so that the playing difficulty of the musical instrument and the operation difficulty of the user can be simplified, and the user experience is guaranteed.

The application relates to an audio processing method, device and electronic equipment. The method comprises: performing audio repair by using an audio repair strategy based on an audio type of a target audio frame; wherein the target audio frame is determined according to frame types of a current audio frame and a previous audio frame; the frame types comprise normal audio frames, packet loss audio frames and repaired audio frames; the audio types comprise human voice clear tone, human voice turbidity and music tone; the audio repair strategy is used to generate repair frame data according to the audio type of the target audio frame; and the repair frame data is used to replace audio frames or data fusion. The application can improve the continuity of repaired audio, thereby improving the auditory experience of a user.

An information processing apparatus includes an input interface and at least one processor. The at least one processor selects at least one musical instrument via the input interface, acquires a parameter value corresponding to the selected musical instrument, generates a random number based on a random function, and changes a pitch of a musical sound emitted based on musical sound data based on the generated random number and the parameter value.

To provide an electronic wind instrument, a pitch switching method, and a pitch switching program that enable easy switching to musical tones based on different pitches simply by adjusting the breath of the performer to the first and second mouthpieces. [Solution] When the intensity index value Vr, which corresponds to the first exhalation intensity V1 based on the air velocity of the exhaled air blown into the upper inlet 310 and the second exhalation intensity V2 based on the air velocity of the exhaled air blown into the lower inlet 311 located adjacent to the upper inlet 310, is greater than or equal to the first pitch change threshold Tcrd, the sound production of a musical tone based on a different pitch that is one octave higher than the key pitch is initiated. This makes it easy to switch to a musical tone based on a different pitch by adjusting the air velocity of the exhaled air blown into the upper inlet 310 and the lower inlet 311 by the performer, similar to how it is done with actual wind instruments such as a flute.

A controller that controls a musical sound generation device has an acquisition unit that acquires gaze information of a user, a display control unit that displays a plurality of operating portions associated with control commands of the musical sound generation device on a display unit, and displays a pointer for selecting the operating portion on the display unit based on the gaze information acquired by the acquisition unit, a determination unit that determines selection of an operating portion overlapping at least a part of the pointer among the plurality of operating portions, and a communication unit that transmits, to the musical sound generation device, information conforming to a MIDI standard corresponding to the operating portion of which the selection has been determined by the determination unit.

This invention provides an amplifier capable of outputting a waveform of a musical tone signal exceeding the power supply voltage, and a method for outputting the waveform of the musical tone signal. The amplifier includes: a power supply; an input terminal for the musical tone signal; an amplification circuit that amplifies the musical tone signal using the power supply; and a jumper circuit connected to the output terminal of the amplification circuit to output a waveform exceeding the voltage value of the power supply.

This invention provides an electronic musical instrument, its power control device, power control method, and recording medium, which can utilize multiple power sources, including: a sound processing circuit for processing sound signals corresponding to the operation of playing components; an output jack for connecting the sound signals to an amplifier; a headphone jack for connecting the sound signals to headphones; a switch for turning the power of the electronic musical instrument on / off; and a control circuit that, based on: information indicating the power supply status of a first power source supplied from an AC adapter, a second power source supplied from a USB cable, and a third power source supplied from a battery; information indicating the presence or absence of the insertion of an output plug into an output jack, the insertion of a headphone plug into a headphone jack, the connection of a USB cable to a USB jack, and the on / off operation of the switch; and information indicating the on / off state of the power supply of the electronic musical instrument, determines whether power supply is required and selects the power source from the first, second, and third power sources for supply.

The invention discloses an electronic musical instrument, a tone adjusting method and a computer readable storage medium. The electronic musical instrument includes a controller and a tone adjustment assembly, the tone adjustment assembly including an input assembly and an encoder input assembly configured to generate an input action in response to a tone adjustment input operation; the encoder is configured to generate a first target signal according to an input action; the controller is configured to determine a first target tone group number and a first target tone tuning name of a musical tone to be played according to the first target signal, so that the musical tone to be played is played according to the first target tone group number and the first target tone tuning name, and the adjustment range of the first target tone group number is from two groups of big characters to five groups of small characters. Therefore, the requirement of a user for adjusting the tones of the electronic musical instrument can be met, so that the user can adjust all pitch areas of the tone group numbers from the lower part to the two big character groups and from the upper part to the five small character groups according to the requirement of the range, and full-range tone modification is realized.