44results about How to "Natural sound" patented technology

The method provides a spectral speech description to be used for synthesis of a speech utterance, where at least one spectral envelope input representation is received. In one solution the improvement is made by manipulation an extremum, i.e. a peak or a valley, in the rapidly varying component of the spectral envelope representation. The rapidly varying component of the spectral envelope representation is manipulated to sharpen and/or accentuate extrema after which it is merged back with the slowly varying component or the spectral envelope input representation to create an enhanced spectral envelope final representation. In other solutions a complex spectrum envelope final representation is created with phase information derived from one of the group delay representation of a real spectral envelope input representation corresponding to a short-time speech signal and a transformed phase component of the discrete complex frequency domain input representation corresponding to the speech utterance.

A method for synthesizing voice based on rhythm character includes text processing program formed by text standardizing step, rhythm structure analysis step and language treatment step, synthetic element selecting program formed by element confirming step, matching step, pasting-up step, optimizing and screening step; voice synthesization processing program formed by base frequency outline generating step of phrase unit, base frequency outline generating step of syllable unit and intonation superposing step.

A method for processing voice synthetic text based on rhythm structure includes comparing inputted text with preset special symbol table to output legal pronunciation character string, comparing legal pronunciation character string according to participle rule and rhythm structure analysis rule to output labeled character string with rhythm structure information, comparing labeled character string with preset rhythm rule and phonetic table word by work and outputting label phonetic code string labeled rhythm information.

Waveform data representative of singing voices of a singing music piece are analyzed to generate melody component data representative of variation over time in fundamental frequency component presumed to represent a melody in the singing voices. Then, through machine learning that uses score data representative of a musical score of the singing music piece and the melody component data, a melody component model, representative of a variation component presumed to represent the melody among the variation over time in fundamental frequency component, is generated for each combination of notes. Parameters defining the melody component models and note identifiers indicative of the combinations of notes whose variation over time in fundamental frequency component are represented by the melody component models are stored into a pitch curve generating database in association with each other.

A method and system consistent with the present invention parses text into syllables. The text is converted into a sequence of "phonemes," basic units of pronounceable and audible speech, divided by syllables. The text may be converted into phonemes using a phonetic dictionary, and the phonemes transformed into another phoneme sequence using a set of transformation rules that are ranked for evaluation to determine the syllable barriers.

A system for actively damping the low-frequency coloration of sound in a listening room is provided comprising an acoustic wave sensor, an acoustic wave actuator, and an electronic feedback controller. The listening room defines at least one mode of low-frequency coloration. The acoustic wave actuator is substantially collocated with the acoustic wave sensor within the listening room. The electronic feedback controller is operative to generate a signal at its output by applying a feedback controller transfer function. The feedback controller transfer function comprises a second order differential equation including a first variable representing a predetermined damping ratio and a second variable representing a tuned natural frequency and creates a 90 degree phase lead substantially at the resonant frequencies of at least one mode of low-frequency coloration. The feedback controller output signal represents a rate of change of volume velocity to be produced by the acoustic wave actuator. Further provided are methods for actively damping the low-frequency coloration of sound within a listening room and systems for actively treating noise within a fluid-carrying duct, including those which employ active low- and high-pass acoustic filters.

The invention provides a method and system for simulating reading and pronunciation of a real person. The method comprises the following steps: inputting a text to be pronounced into a classification model constructed in advance; splitting the text to be pronounced into a plurality of words and obtaining a text vector of each word in sequence; obtaining voice vectors corresponding to the words according to the text vectors of the words; and converting the voice vectors into audios and playing the audios through a player. According to the method, through the classification model constructed in advance, the text to be pronounced is split into the plurality of words, the voice vectors corresponding to the words are obtained according to the obtained text vectors of the words, and the corresponding audios are output for playing, so that the generated sound is nature, and the whole piece of text can be read with a sentence and a paragraph as a basic unit; and each word has different pronunciation, tone and pause and the like unique properties, and thus the real person pronunciation effect is achieved.

A system and method of providing sound reinforcement in a classroom, an office, a conference room, an auditorium, or any other suitable venue. The system includes at least one microphone, a receiver, a sound masking signal generator, a system controller, and a plurality of spatially distributed loudspeakers. The microphone detects the speech of a talker, generates at least one voice signal corresponding to the detected speech, and provides the generated voice signal to the receiver. The sound masking signal generator generates at least one sound masking signal having a specified sound masking spectrum. The system controller receives the voice signal and the sound masking signal from the receiver and the sound masking signal generator, respectively, and provides the voice and sound masking signals to the loudspeakers over respective channels. The loudspeakers emit acoustic voice and sound masking signals simultaneously and directly into the venue to obtain a more uniform sound field coverage for the acoustic voice signals and more uniform levels of the acoustic sound masking signals throughout the venue.

An apparatus and method for artificial reverberation having one or more input summing nodes receiving an input signal and which each feed a first series of delay elements and the output of which is thereafter summed, weighted, and fed back to the input summing nodes. Also, a feedback summing node which further feeds a second delay element which feeds an output with a signal which has multi-dimensional or multi-delay reverberation relative to the input signal. An alternative embodiment further feeds one or more of the first delay element outputs weighted via an output gain to an output summing node which also sums the output of the second delay element and provides a summed output having a multi-dimensional or multi-delay reverberation. The embodiment is easily and economically implemented via conventional integrated electronic circuits, a combination of analog and digital electronics, digital signal processors, microprocessors, micro-controllers, or computer algorithms.

The present invention discloses a sound amplification wooden guitar, including a resonator, a sound hole, strings and a bridge, wherein, the resonator is composed of an upper panel, a lower panel and side panels, the sound hole is arranged on the upper panel, the strings are arranged over the sound hole, and the bridge is used for fixing one ends of strings. The sound amplification wooden guitar also includes a pickup device, an audio amplification module, a vibration enhancing device, and a power module, wherein, the pickup device is used for converting the mechanical vibration of strings to electrical signals, the audio amplification module is used for amplifying the electrical signals, the vibration enhancing device is used for converting the amplified electrical signals to the mechanical vibration and transmitting the mechanical vibration to the upper panel and the lower panel of the resonator, and the power module is used for providing a power source. The sound amplification wooden guitar can solve an acoustic wooden guitar volume problem that had plagued guitar players for a long time, greatly enhance the music performance, and drive the guitar music far-reaching development. The sound amplification wooden guitar has the very high market value in consideration of the huge inventory and demands of the acoustic wooden guitar in the globe.

The invention discloses a vehicle carpet high in sound absorption performance and a manufacturing method thereof. The carpet is formed by combining a carpet blank, a bonding layer, a composite sound absorption pad and sound absorption foam from top to bottom. The composite sound absorption pad is a composite material pad which is formed by mixing 30% of cotton fibers and 70% of polyester fibers, in this way, holes still exist after the cotton fibers are formed through roasting, the sound absorption capacity is improved, and the requirement for the strength of polyester products can also be met; meanwhile, all the layers are arranged according to a certain density ratio, and thus it is guaranteed that the optimum sound absorption effect can be achieved.

The invention discloses a manufacturing method of super bass drum paper and belongs to the technical field of electroacoustic products. The manufacturing method includes the steps of firstly, beating; secondly, making paper; thirdly, reinforcing neck parts; fourthly, spraying varnish; fifthly, spraying or tossing glue; sixthly, cutting; seventhly, forming; eighthly, applying glue to edges; ninthly, adhering; tenthly, sewing and reinforcing. The manufacturing method has the advantages that the bass quality of the super bass drum paper is increased, distortion rate is lowered to a large degree, the physical performance such as filling power, damping performance, lightweight performance and stiffness-flexibility combination of the obtained drum paper is well improved, a loudspeaker using the drum paper can have a good sound effect, and sounds are soft, gentle and elegant, relaxing, natural and less prone to fatigue causing.

The invention provides semi-decompression full-paper drum paper. Drum paper pulp is obtained through beating, pulping and bleaching and mixing with filler and a chemical assistant; the drum paper pulp is subjected to pulp fishing; after the pulp fishing, the drum paper pulp is treated by saturated steam and then extruded for dewatering; the surface quality of paper is improved, and the tightness and strength of the paper are enhanced; in a hot compression moulding technology, a low-temperature decompression technology is adopted; in the process, the pulp fiber is not damaged remarkably due to low temperature, low pressure and no paper compression; the strength and flexibility of the drum paper are effectively improved; meanwhile, the stereoscopic impression of medium-frequency human voice is improved, and the voice is moist and real; the layering of low frequency is improved, thus the voice is thick, does not noisy or harsh, and the tone quality is clear, natural and transparent.

A system and a method for speech generation which assist the speech of those with a disability or a medical condition such as cerebral palsy, motor neurone disease or a dysarthia following a stroke. The system has a user interface having a multiplicity of states each of which correspond to a sound and a selector for making a selection of a state or a combination of states. The system also has a processor for processing the selected state or combination of states and an audio output for outputting the sound or combination of sounds. The sounds associated with the states can be phonemes or phonics and the user interface is typically a manually operable device such as a mouse, trackball, joystick or other device that allows a user to distinguish between states by manipulating the interface to a number of positions.

A magnetic energy guide angle sound effect type loudspeaker comprises a washer, a voice coil, T iron, a permanent magnet, a support and a vibrating diaphragm, and an annular guide angle upper convex ring is arranged on the upper edge of an inner hole of the washer; an upper groove is formed in the upper edge of an inner hole of the washer, the edge of the upper groove protrudes to form an annular lead angle upper protruding ring, the upper groove in the upper edge of the inner hole of the washer is one or a combination of any two of an arc shape, a trapezoid shape, a triangle shape, a right angle shape and a step shape, an annular lead angle pad is fixed to the upper end of the inner hole of the washer, and the edge of the annular lead angle pad protrudes to form an annular lead angle upper protruding ring. The loudspeaker has the advantages that after the structure of the washer is changed, the magnetic energy is provided for the voice coil through the annular lead angle upper convex ring after reducing means such as contraction and expansion, the loudspeaker is high in sound pressure, good in sound effect and natural in tone, and the sound effect can be adjusted according to the size or width of the annular lead angle upper convex ring; the original loudspeaker can also be modified by adopting the structure of the annular lead angle pad.