67 results about "Hum" patented technology

The present invention discloses a digital music search method and a device therefore, which can search the music with the designated melody by taking musical melody as the keyword. The present invention provides two melody input methods to a user: playing and humming. The humming input method adopts a series of signal processing methods to analyze the humming audio signal and extract the melodic information. A musical database adopts a reverse algorithm to compile an index, thus increasing the search efficiency. The device provided by the present invention is divided into a server terminal and a client terminal; the server terminal is to maintain the musical database and the index thereof and responds the search query of the client terminal; the client terminal is to collect the melodic input of the user, receive and display the search result of the server. The present invention utilizes the musical melody to search the music, thus compensating the shortcoming of the traditional text-based search method and helping the user to search the wanted music without text information. The user can use computers, mobile phones and other common equipment for music search.

The invention discloses a humming computer music searching method based on longest matching subsequence algorithm, which comprises the following steps of (1) fundamental tone frequency extraction, (2) music characteristic database construction, (3) characteristic expression achieving and (4) searching matching. The method has the advantages of improving integral speed of similarity calculation, improving searching efficiency of a searching engine, constructing an accurate music searching platform for karaoke, a network engine based on content search and a multifunctional intelligent mobile terminal platform and being capable of being widely used in fields of relative plugs of the network searching engine and the like. The method for music characteristic extraction, music characteristic expression and similarity accurate calculation can conduct accurate calculation on a humming searching system, enables music search to be accurate, slight and happy, and has strong practical value and reality meaning.

The invention belongs to the technical field of computer application and provides a humming type music retrieval method and system based on note modeling. According to the humming type music retrieval method and system based on note modeling, modeling and parameter training are conducted on standard notes according to the Gaussian hybrid model technology, similarity calculation is conducted between a note resolved from a humming voice and a duration time sequence of the note and the standard notes of all key melodies in a base and the duration time sequences of the standard notes, and an optimal result is obtained. The humming type music retrieval method and system based on note modeling have the outstanding advantages that adding of new models and parameter training do not need to be conducted when new songs are added into a song library, and the popularization and application prospect is broad.

Embodiments of the invention provide an audio classification method and an apparatus thereof. The method comprises the following steps of according to collected training data, based on a depth nerve network, training and acquiring an audio classification model; extracting an audio characteristic from the audio data; and inputting the audio characteristic into the audio classification model, outputting and acquiring a classification result of the audio data, wherein the classification result includes a recording audio, a voice song searching audio and a humming audio. In the prior art, a classification correct rate between the humming audio and the voice song searching audio is low. In the embodiments of the invention, the above problem can be solved, audio classification accuracy is increased and then song searching accuracy can be increased too.

The invention discloses a method for searching a hummed song by using a mobile terminal and the mobile terminal thereof. The method for searing the hummed song by using the mobile terminal includes obtaining audio information of humming of users by using a microphone of the mobile terminal; extracting musical notes for song searching from the audio information; and searching a target song in a local or network data base by adopting dynamic wrapping algorithm according to the musical notes. The mobile terminal comprises the microphone for obtaining the audio information of the humming of the users; an extracting module connected with the microphone and used for extracting the musical notes from the audio information for searching the songs; and a searching module connected with the extracting module and used for searching the target song from a plurality of songs to be selected, and the songs to be selected are stored in the local or network data base. Users conduct searching in the data base by using the received hummed audio so as to search corresponding songs according to a hummed melody.

The invention belongs to the technical field of application of computers, and provides a humming music reading method and system based on music note and duration modeling. According to the humming and music reading method and system based on the music note and duration modeling, a music theory gauss mixed model library comprising a music note and music pitch model set and a music note and duration model set is established, model parameter training is carried out on all the models in the music theory gauss mixed model library in advance through a music theory gauss mixed model training unit, and a music theory gauss mixed model library revaluation training unit can be selected to carry out revaluation training on model parameters. When humming music reading is carried out, music pitch characteristic extraction, music theory information decoding recognition, rhythm extraction and music theory processing and conversion are respectively carried out on collected user humming voice, and lastly, a standard music score is output. The humming music reading system is high in recognition rate, good in stability, adaptable to individual singing behavior characteristics and capable of serving as a creation assistant and a backup tool for professional staff and music lovers, and has popularization and application value and industrialization prospects.

A method for querying music databank in high efficiency way based on song-humming includes picking up melodic outline of querying music inputted by user, dividing said outline according to n element syntax and expanding generated query set, using each element in expanded query set to seek Haxi index to obtain intermediate result, obtaining melodic outline of each music matching to input part by sequencing all intermediate results as per music coding, calculating match-degree of each music in intermediate result, selecting a numbers of music codes with highest match-degree and taking their music names being returned back to user.

In a hybrid drive train with torsional vibration dampers of a hybrid motor vehicle, including an internal combustion engine, an electric machine, a clutch and a transmission, a first spring damping system is arranged between the internal combustion engine and the electric machine and a second spring damping system is arranged between the electric machine and the transmission, each damping system being provided with an arrangement of springs and a centrifugal pendulum for reducing humming noises in a hybrid drive train in the low speed driving range of the hybrid motor vehicle.

The invention discloses a multimedia playing method and device with the function of voice controlling and humming searching. The multimedia playing method includes the following steps that a user selects a working mode and voice data are collected and pre-processed; under the voice control mode, the voice data and grammar rules are uploaded to a voice recognizing service terminal to undergo voice identification and playing control or resource management is carried out according to an identification result. Under the humming research mode, a fundamental voice sequence is extracted from the voice data and converted into a note sequence. A matching research service terminal is used for finding out identity information of matched multimedia resources and the corresponding multimedia resources are downloaded to the local. The multimedia playing device comprises a human-computer interaction module, a voice input module, a voice data processing module, a central processor, a media storage module, a playing and decoding module, an audio output module, a network interface module, the matching research service terminal and the like. The multimedia playing method and device with the function of voice controlling and humming searching have the advantages of being capable of releasing hands of a user, bringing good experiences to the user, convenient to use, accurate in humming detection and wide in application range.

The invention provides a large-scale humming melody matching system based on data level paralleling and graphic processing unit (GPU) acceleration and aims at solving the problem that the existing practical large-scale humming retrieval system is lacked and is low in performance and the like. The system mainly comprises a humming melody extraction module, a humming retrieval melody base building module and a humming melody matching module based on data level paralleling. Due to the fact that the system faces a newly-developing application of large-scale humming retrieval, the new technologies of data level paralleling, and GPU acceleration and the like are completely utilized, forceful support is provided for performance improvement of the large-scale humming retrieval system, and the system has wide application prospects.

The invention relates to an APP humming composition system and a method thereof. The system comprises an APP client logging module, an APP client selection module, an audio data transmit-receive module, an audio data obtaining module, an audio data coordination module, an audio data storage module, an audio data synthesis module and an audio data finishing module. The APP humming composition system and the method thereof have the advantages that a song is divided into 5 parts according to the structure of the song, the song is fragmented according to the five parts and the five parts are recombined to complete an accompaniment, rules of popular music are summaries, universal chord blocks are created, the universal chord blocks are spliced at will, and a user can compose the composition by splicing the chord blocks and autonomously humming and enjoy the entertainment of song fragmentation and recombination of a new song; in addition, the style and the keynote of the song are selected, the APP humming composition system and the method thereof are simple and easy to understand, and the professional language is popular and visual, so that the user can directly make selections without understanding the meaning. By adopting the APP humming composition system and the method thereof, a common person can make a song of himself without the need of knowing musical instruments and arrangement, and the song of the user himself can be output by one time of humming.

A system and method for retrieving musical information from a database based on a melody fragment. The system may be used by a person without formal musical training to retrieve musical data (e.g., the name of a song, bibliographic information about a song, or the song itself) from a database by providing the melody or fragment of the melody of the desired music to a computer interface. The melody may be provided by singing, humming, whistling, or playing a musical instrument, for example, a keyboard. The inputted melodic information is encoded using relative changes in pitch and rhythm throughout the melody. The encoded information is then compared using a matching algorithm to similarly encoded melodic information representative of many musical pieces (e.g., songs). Results may also be sorted using a weighted algorithm.

A backyard wildlife feeder with a base member, a central vertical post, a plurality of feeding trays, a plurality of canopy members, a water retaining tray, and plurality of leaf shaped photovoltaic panels. The vertical post has a plurality of plug together sections, the lowest of which attaches to the base. The feeding trays are circular and include a central aperture to allow the vertical post to penetrate through from one tray to the next. The feeding trays are each capped by a canopy member which protects food stored in the trays. One the feeding trays include small orifices to accommodate the feeding of humming birds. One tray includes a hive type assembly for the nesting of bees. The top tray is capable of retaining water and acting as a bird bath. A ladder extends from the base to the lowest the feeding tray which can contain squirrel food.

The invention discloses a music humming searching method conducting matching based on binary approach dynamic time warping and relates to the technical field of audio searching and humming searching. The method includes two portions: first utilizing musical instrument digital interface (MIDI) music files to build a music data base; then extracting characteristics of a humming fragment, conducting matching based on the binary approach dynamic time warping with a music data base model and returning a searching result. The method includes the following steps: first conducting normalization, band-pass filtering, pre-emphasis, windowing framing and the like on the humming fragment; then conducting silencing section filtering, keynote detection, mid-value smoothing and the like; finally conducting matching based on the binary approach dynamic time warping, sequencing matching rates from the high to the low and returning the result. The method has the advantages of achieving note sequence time point alignment and note relative pitch of music searching and remarkably improving searching hit rate.

The invention provides a layer-progressive method for searching song melodies, which belongs to the melody search technical field, and is characterized in that a humming recording data acquisition module is arranged on a PC so as to save hums input from a speaker sound card as humming recording data; a humming melody feature extraction module extracts a humming note sequence and a framing humming pitch sequence which include melody features from the humming recording data; a song library melody feature extraction module extracts a note sequence and a framing pitch sequence from the midi file including song melodies; a quick search module performs a quick search in the whole song library for a relatively-small alternative melody set by a note-based search method; and an accurate search module performs a search in the alternative melody set for the ultimate result by a framing-based search method. The melody search method has the characteristics of high accuracy and high speed.

The invention discloses an advertisement identification method based on audio, which comprises the following steps: a) acquiring audio of audio video advertisement and collecting the detailed information of the commodity corresponding to the advertisement; b) extracting melody characteristic of the advertisement audio and storing the melody characteristic of the advertisement audio together with the commodity information in a database; c) obtaining a humming audio recorded by a user and extracting the melody characteristic of the humming audio; and d) searching the melody characteristic of the advertisement audio similar to that of the humming audio from the database, and if finding out, returning the community information corresponding to the melody characteristic of the advertisement audio to the user. By adoption of the advertisement identification method disclosed by the invention based on audio, the search comparison can be performed fast and exactly and the community information corresponding to the advertisement audio is returned to the user in time.

The invention discloses a backing alarm radar and an audible alarm method thereof, consisting of a main controller module, ultrasonic distance monitoring modules, an LED light indicating module and a buzzer alarm module; wherein, the main controller module consists of a single chip microprocessor, a crystal oscillating circuit module and a download input interface module; the method is characterized in that the single chip microprocessor adopts AT89S51; the number of the ultrasonic distance monitoring modules are five, which are respectively arranged at the middle part, the left part, the right part, the left upper part and the right upper part of the tail part of the vehicle; the LED light indicating module is used for indicating the specific orientation of the obstacle. The invention not only can determine the distance between the tail of the vehicle and the obstacle, but also eliminates the blind area or dead angle for observation, thus greatly improving the safety when the vehicle is moved backward and providing great convenience for the backing operation of a driver; as a buzzer alarm is provided with three types of alarm sounds with distance prompt, the driver can grasp the distance between the tail of the vehicle and the obstacle, thus greatly avoiding the phenomenon of side swipe or collision.

Flatware and tableware having signaling means for aiding a visually impaired user in locating and retrieving food from the tableware using the flatware. A signaling means assembly is housed within the flatware handle, the assembly having a magnet and a spring. The tableware has a central food-receiving surface and a metal upper rim. Upon bringing the signaling means assembly of the flatware into close proximity with the tableware metal rim, a magnetic force is exchanged that pulls the magnet towards the tableware, compresses the spring, and serves as a guide to the user. After the flatware moves past the rim, the magnet oscillates upon the spring and causes the flatware to vibrate. The vibrations generates a humming sound that signals to the user that contact has been established.

This embodiment is a noise cancellation system for electric stringed instrument comprises of passive pickup circuit with non humbucking pickup coils called a signal coil. Each signal coil senses the unwanted electromagnetic radiation from the surrounding and produce a noise voltage that gives humming and buzzing noise through an amplifier. This embodiment cancels the noise by injecting a current signal directly into the signal coil. The impedance of the signal coil in parallel with the impedance already loading the signal coil, transform the current signal back to a voltage equal and opposite to the noise voltage; thereby, canceling each other and eliminates the noise.

The invention provides an embedded humming retrieval method based on 16-bit DSP (Digital Signal Processing) platform application. The method comprises the steps of acquiring a humming melody of a user and storing the humming melody according to a PCM (Pulse Code Modulation) format; extracting fundamental tones from the humming melody according to a short-time autocorrelation algorithm to obtain PV (pitch value) information; performing note segmentation and post-processing to the PV information, converting the PV information into NOTE format information and removing false fundamental tone information to obtain a melody to be retrieved; converting MIDI (Musical Instrument Digital Interface) music library information into NOTE format information to obtain a standard MIDI music template library; matching the melody to be retrieved with the standard MIDI music template library through an NLS (Note-based Linear Scaling) algorithm and an NRA (Note-based Recursive Alignment) algorithm to obtain matching scores, wherein the NLS algorithm is obtained by modifying a traditional frame-based LS (Linear Scaling) algorithm into an algorithm based on NOTE information, and the NRA algorithm is obtained by modifying a traditional frame-based RA (Recursive Alignment) algorithm into an algorithm based on the NOTE information; and ordering according to the matching scores and outputting matching results. The embedded humming retrieval method based on the 16-bit DSP platform application can realize high-efficiency accurate retrieval, and the adaptability is wide.

The invention discloses a safe energy-saving portable road construction warning sign. The structure of the warning sign comprises a warning sign board, energy-saving prompting light beads, a light brightness controlling device, a solar battery cell, a foldable supporting frame, an infrared ranging device, a safe energy-saving control device and a portable handle, the warning sign board is of a rectangular structure, the energy-saving light beads are embedded in the front surface of the warning sign board and are electrically connected with each other through parallel connection, the energy-saving prompting light beads are electrically connected with the light brightness controlling device, and the solar battery cell is obliquely arranged above the warning sign board and is movably connected with the warning sign board through the foldable supporting frame. According to the warning sign, the brightness of the prompting light beads are controlled to be darker when no vehicles or pedestrians pass by, when the vehicles and the pedestrians pass by, the brightness of the light beads are automatically adjusted according to the range, the warning sign has a humming warning function, passing vehicles and pedestrians can be effectively warned to effectively improve the safety performance of the road construction warning sign, and functions of energy saving and power saving are achieved.

The present invention discloses a dynamic planning based humming melody extracting and matching search method. The humming melody extracting and matching search method comprises the specific steps of: acquiring a section of a song hummed by a user through a microphone in a form of audio signal; solving a logarithm energy curve of an input signal and smoothing the curve; dynamically estimating an energy threshold value of an audio region according to a maximum value and a minimum value of the curve; cutting off sections with continuous sounds and enabling each section to correspond to each hummed note; solving a base frequency of each frame of hummed signal based on a time domain self-correlated method, and carrying out down type conversion on the base frequency to obtain a half-tone unit; calculating the pitch of an audio frame by adopting a rule based method, and carrying out melody curve smoothing to remove noise sections, so as to finally obtain effective humming melodies; aiming at the representation of three stages of pitch outline line melodies, carrying out melody matching on indexed network audio files based on a recursive calculation method for a minimum editing distance between pitch outline lines; and taking the plurality of network audio files with the highest total point in similarity as a searching result to be returned back to the user.

A clinical thermometer is disclosed. The thermometer comprises a housing, circuit board, base seat, humming plate and spring characterized in that the base seat has a speaker box slot and a speaker cover plate with the humming plate mounted therein, circuit connection is formed between the humming plate and the circuit board by the spring, and the length of the base seat is shorter than the circuit board such that the electronic components which are required to be inspected are exposed outside the base seat, thereby minimizing the inspection time and replacement time of the components.

Embodiments of the invention provide a music retrieval method and apparatus. The method comprises the steps of obtaining a fundamental frequency sequence corresponding to a humming melody; performing fast Fourier transform on the fundamental frequency sequence, comparing the transformed fundamental frequency sequence with music pre-stored in a music information library, and obtaining a first candidate music set according to a comparison result; filtering the music in the first candidate music set by utilizing a piecewise aggregate approximation (PPA) distance method to obtain a second candidate music set; and processing the music in the second candidate music set to obtain and display a music retrieval result. According to the embodiments of the invention, the music retrieval efficiency can be improved, the waiting time of a user can be shortened, the system resource consumption can be reduced, and the system processing capability can be improved.

A sound wave generator includes a speaker control circuit (4) and a speaker (2). The speaker control circuit includes a signal generating unit (3) that is configured to generate an electric signal having a humming frequency property. The humming frequency property includes a plurality of frequencies that have an overtone relationship with respect to A Hz and are pitched at the A Hz, the A Hz being a target generation frequency and corresponding to a low pitch frequency in an audible range. The speaker (2) generates a sound wave from the electric signal by applying the electric signal to a vibration plate (1) that produces the sound wave.

A sound wave generator includes a speaker control circuit and a speaker. The speaker control circuit includes a signal generating unit that is configured to generate an electric signal having a humming frequency property. The humming frequency property includes a plurality of frequencies that have an overtone relationship with respect to A Hz and are pitched at the A Hz, the A Hz being a target generation frequency and corresponding to a low pitch frequency in an audible range. The speaker generates a sound wave from the electric signal by applying the electric signal to a vibration plate that produces the sound wave.

The invention discloses a method for searching a hummed song by using a mobile terminal and the mobile terminal thereof. The method for searing the hummed song by using the mobile terminal includes obtaining audio information of humming of users by using a microphone of the mobile terminal; extracting musical notes for song searching from the audio information; and searching a target song in a local or network data base by adopting dynamic wrapping algorithm according to the musical notes. The mobile terminal comprises the microphone for obtaining the audio information of the humming of the users; an extracting module connected with the microphone and used for extracting the musical notes from the audio information for searching the songs; and a searching module connected with the extracting module and used for searching the target song from a plurality of songs to be selected, and the songs to be selected are stored in the local or network data base. Users conduct searching in the data base by using the received hummed audio so as to search corresponding songs according to a hummed melody.

The invention discloses a reception method and electronic equipment. The method comprises that a trigger instruction is obtaioned; response to the trigger instruction is made; a sound output assembly of the electronic equipment plays an accompanied song; when the accompanied song is played, a first collection assembly of the electronic equipment collects and processes first audio data of a collected object in real time; and after that the accompanied song is played, a display output assembly of the electronic equipment displays second audio data aimed at completion of processing of the first audio data and third audio data aimed at completion of processing of the first audio data, and the sound effect of the second audio data played by the sound output assembly is different from that of the third audio data played by the sound output assembly. At least the humming audio of users can be output timely, the audio output effects are not single, and reception experience of the users is further improved.

Disclosed is a backlight unit that is suitable for reducing humming noise that occurs when power is applied for dimming control. The present invention provides a backlight unit including a plurality of lamps arranged over a bottom cover, first and second lower structures respectively mounted at opposite ends of the lamps, the first and second lower structures having a groove between adjacent lamps, sound absorbing pads disposed within the grooves, common electrodes mounted on the first and second lower structures having the sound absorbing pads thereon respectively, and first and second upper structures respectively coupled to the first and second lower structures. The first and second upper structures have a plurality of ribs that press down on the common electrodes and sound absorbing pads.