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.

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.

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 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 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.

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 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.

An electro-motor drive, in particular for a fan drive of a motor vehicle, includes a commutator motor, a motor shaft of which is rotatably mounted on axially opposite sides in shaft bearings facing away from the bearing shield in order to substantially dampen the sound of at least bearing play-related contact noise and vibration or humming noise.

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 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 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.