190 results about "Acoustic processing" patented technology

The invention provides a low-delay streaming voice interaction system with an interruption processing function, and relates to the technical field of artificial intelligence. Necessary preprocessing and acoustic feature extraction are performed through a real-time acoustic processing module, and distortion and complex environmental noise introduced by an interaction channel are resisted through a robustness enhancement technology; the streaming acoustic decoding module performs acoustic modeling, language model application and decoding in real time in parallel, and outputs an ultra-low-delay text transfer result stream; the real-time acoustic processing module is combined with a signal processing technology and is responsible for detecting user voice activity in a high-precision and ultra-low-delay manner, and particularly judging the real-time voice activity state of a user through the user voice activity in an AI voice playing period; an efficient and low-delay bidirectional streaming network transmission mode is adopted between modules of the system and between the modules and a communication platform, and it is ensured that audio streams, acoustic feature streams, text streams and control signals can be transmitted and processed in real time with extremely low end-to-end delay.

The invention relates to the technical field of sound effect optimization, and discloses a sound effect optimization method and device based on a coaxial loudspeaker echo wall sound box, and the method comprises the steps: carrying out the acoustic response measurement and acoustic feature analysis of the coaxial loudspeaker echo wall sound box, and obtaining a frequency domain acoustic response characteristic curve; performing acoustic partition calculation on the internal space of the coaxial loudspeaker echo wall sound box to obtain a spatial arrangement parameter of an acoustic processing unit; carrying out acoustic center positioning calculation on the coaxial loudspeaker to obtain a space coordinate parameter and an axial inclination angle parameter of the coaxial loudspeaker; carrying out sound reflection angle calculation and material combination optimization on the inner wall structure of the echo wall sound box to obtain an inner wall geometric curvature parameter and a box body material lamination parameter; sound pressure level frequency response curve analysis and sound phase positioning precision measurement are carried out on the inner wall geometric curvature parameters and the box body material lamination parameters, sound box acoustic performance verification data are obtained, the uniformity of the sound field in the sound box is guaranteed, and then the acoustic performance of the sound box is improved.

The invention discloses an open architecture system for an underwater acoustic signal processor, and belongs to the technical field of underwater acoustic signal processors. The system comprises a hardware resource pool, a standardized algorithm container group, a visual processing link construction module, a containerized deployment and scheduling platform and a data processing and communication plane. According to the system, special hardware resources are pooled, an underwater sound processing algorithm is packaged into a standardized container, a user is allowed to arrange a processing flow in a graphical mode, an intelligent scheduling platform dynamically deploys the algorithm container to matched hardware for execution according to real-time resource conditions, and meanwhile, an efficient and reliable data communication channel is provided. According to the method, the problems that a traditional system is closed, poor in expansibility and low in resource utilization rate are solved, elastic sharing of hardware resources, agile deployment of an algorithm and flexible construction of a flow are achieved, and openness, flexibility and overall efficiency of an underwater acoustic signal processing system are remarkably improved.

The embodiment of the invention provides an acoustic model generation method and device, electronic equipment and a storage medium, and relates to the technical field of artificial intelligence. Comprising text content, audio pediatric data corresponding to the text content, text rhythm features corresponding to the text content and acoustic features corresponding to the audio pediatric data, and the acoustic model comprises a secondary rhythm representation correction module and an acoustic processing unit; inputting the text content, the audio data, the acoustic features and the text rhythm features into a second-level rhythm representation correction module for correction, and performing parameter tuning on the second-level rhythm representation correction module based on a correction result to obtain a second-level rhythm representation correction module after tuning; performing model training according to the text content, the audio data, the acoustic features and the optimized secondary rhythm representation correction module to obtain a loss function; and performing parameter optimization on the acoustic processing unit according to the loss function to obtain an acoustic model meeting a preset condition.

The recognition rate can be improved even in a noise environment and without relying on the voice-recognition result. An acoustic signal processing device includes a spatial filter control unit, a spatial filter storing unit, and an acoustic processing unit. The spatial filter control unit outputs a spatial filter for emphasizing the target voice component and suppressing the noise component for N number of temporally-synchronized acoustic signals (N≥2) recorded at different positions. The spatial filter storing unit stores therein the spatial filter. Using the spatial filter read from the spatial filter storing unit, the acoustic processing unit emphasizes the target voice component in the acoustic signals, and suppresses the noise component in the acoustic signals. The spatial filter control unit further includes a determining unit, a voice spatial correlation calculating unit, a noise spatial correlation calculating unit, a spatial correlation storing unit, and a spatial filter calculating unit.

The invention provides an impedance combined type broadband silencer based on a sound wave black hole gradient structure and a design method, and belongs to the technical field of noise control and environmental protection engineering, the whole impedance combined type broadband silencer is of an axisymmetric cylindrical structure, and the impedance combined type broadband silencer is composed of an inlet and outlet channel and a middle-section expanding type acoustic processing area; the expanded acoustic processing area comprises an inlet and outlet side expansion cavity, a composite impedance gradient perforation section and a porous sound absorption material layer. According to the sound wave black hole type multi-stage perforated ring structure, the sound wave black hole type multi-stage perforated ring structure composed of an axial uniform-parameter perforated ring belt and a radial gradient perforated ring belt is sequentially constructed in the silencer, so that the thickness of a perforated ring and the aperture and the perforation rate of the perforated ring belt are arranged on a propagation path according to a parameter gradient rule; porous materials are filled among the annular bands to form a gradient impedance composite dissipation system, so that sound waves are sequentially subjected to focusing and dissipation caused by geometric gradual shrinkage and viscosity and heat dissipation of porous media in the propagation process, and low-frequency enhanced absorption and wide-frequency-band continuous sound absorption are achieved.

To enhance user experience.SOLUTION: A detection unit detects the orientation of a user P1 on the basis of signals output from a sensor. A display processing unit changes the orientation of a virtual camera 61 arranged in a virtual space so as to follow the orientation of the user P1 detected by the detection unit, and causes a display to display the image of the virtual space obtained by the virtual camera 61. An audio processing unit causes a plurality of speakers 30 to output audio in the virtual space, including a predetermined specific sound A5, in such a manner that the specific sound A5 is output from a specific direction toward the user P1 in accordance with the orientation of the user P1 detected by the detection unit.SELECTED DRAWING: Figure 7

Provided is an acoustic processing apparatus in which a microelectromechanical systems (MEMS) device is effectively arranged. The acoustic processing apparatus includes an enclosure, a sound duct extending from the enclosure, and a MEMS device housed in the sound duct.

The present disclosure provides a speech processing method, apparatus, device and storage medium, which relate to the field of artificial intelligence, and in particular to the field of speech technology. The specific implementation scheme is: based on the parameter characteristics of the streaming acoustic processing module in the acoustic model, an acoustic processing filling block is obtained; the acoustic processing filling block is added to the i-th data block to be acoustically processed to obtain the i-th target acoustic processing data block; wherein the i-th data block to be acoustically processed is obtained by slicing the data to be processed into n data blocks to be acoustically processed; the i is a natural number not greater than n, and the n is a natural number not less than 2; the i-th target acoustic processing data block is input into the streaming acoustic processing module in the acoustic model for streaming acoustic processing to obtain the i-th streaming acoustic processing result.

The invention discloses an acoustic processing method for directionally generating, grouping and managing sound frequency bands and eliminating and counteracting the sound frequency bands, which comprises the following steps of: S1, carrying out AD (Analog to Digital) sampling on analog sound signals to be processed to obtain digital sound signals to be processed; s2, performing dynamic frequency band division on the to-be-processed digital sound signal to obtain a plurality of frequency band signals; s3, mapping the plurality of frequency band signals into a plurality of sound source groups; s4, each sound source group generates a directive sound signal pointing to the target area by using the sound radiation unit of the sound source group, and after the directive sound signal is synchronously transmitted to the target area, an actual mixed sound signal is formed; and S5, detecting, eliminating and counteracting a sound wave counteracting effect generated by the actual mixed sound signal in the target area. According to the method, high-quality accurate directional propagation can be realized, and the adaptability to a complex environment is enhanced.

The invention provides a low-noise mounting device and a noise reduction structure design method thereof, and relates to the technical field of aviation noise control. The design method of the noise reduction structure of the low-noise installation device comprises the steps of obtaining unsteady pressure pulsation data of the surface of a calculation model; wherein the calculation model has main body structure characteristics of the low-noise mounting device; obtaining the maximum position of the unsteady pressure pulsation amplitude on the surface of the calculation model according to the unsteady pressure pulsation data, and dividing a plurality of acoustic processing areas by taking the maximum position as the center in an outward expansion manner; calculating each acoustic processing area to obtain a corresponding target frequency; the acoustic impedance matching structure is selected according to the target frequency, so that acoustic structures with specific frequency characteristics can be designed for different acoustic processing areas, accurate control over multi-band noise by the mounting device is achieved, and the effect noise of machine body mounting is facilitated. Especially, the ideal noise reduction effect is achieved on the installation effect noise of the open type rotor engine.

Furniture such as desks and other items are provided with sound absorbing features consisting of micro-perforations extending through structures having vertical surfaces. The micro-perforations are formed using a LASER cutting tool or a punch and are either cylindrical or frustoconical. The micro-perforations are formed in drawer facings, doors, support structures, and free-standing objects and storage devices having vertical surfaces. The micro-perforations have diameters in the range of 0.20 to 0.70 mm. The micro-perforations have been found to increase sound absorption of a desk by as much as 4 Sabins within the frequency range of 100 to 5,000 Hz. Structural panels consisting of front and rear micro-perforated panels surrounding a porous central core may be employed in such furniture.

In the sound processing method, sound information relating to a sound including a predetermined sound and meta-information including information relating to a space in which the predetermined sound is reproduced are acquired (S1), and sound processing for generating a sound signal is performed on the basis of the sound information and the meta-information. The sound signal indicates a sound (S2) including a direct sound to a user from a sound source object and an initial reflected sound reaching the user, and an output sound signal (S3) including the sound signal is output. In sound processing, a parameter for generating an initial reflected sound is determined, the parameter including a position of a dummy sound source object that generates the initial reflected sound in a space (S21), and the initial reflected sound is generated on the basis of the determined parameter (S22). At least a portion of the parameter varies over time in accordance with a predetermined condition.

The invention discloses a tomography and targeted energy thermal therapy system and method based on an acousto-optic coupling functional film layer, and relates to the technical field of noninvasive medical diagnosis and treatment. The system comprises an intelligent processing carrier, an acousto-optic coupling function film layer, a scanning mechanism, an energy treatment module and a processing and temperature control module. The intelligent processing carrier at least comprises a 20Hz-20kHz audio unit, a pickup unit, an optical signal unit and a processor; the acousto-optic coupling functional film layer is of a single physical structure and is inseparable, acoustic frequency conversion focusing imaging and targeted warm delivery at 42-47 DEG C are achieved in the same physical area in a time-sharing mode, the acoustic processing layer achieves 1000-8000 frequency doubling through a multi-stage resonance microcavity array, and the echo signal-to-noise ratio is larger than or equal to 15 dB; the scanning mechanism comprises a plurality of modes such as rotation, translation, multi-device array, human body movement, local limb movement, human body bearing support device movement and the like; the energy forms cover all types of light, electromagnetism, radio frequency and the like capable of generating a warm effect, including but not limited to non-contact or contact energy delivery modes. The traditional Chinese medicine composition is suitable for tumors, infections, inflammations, and all lesions sensitive to temperature of 42-47 DEG C including nervous system lesions such as amyotrophic lateral sclerosis, Alzheimer's disease, Parkinson's disease, multiple sclerosis and the like, is low in cost, free of radiation and easy to popularize, and has extremely high creativity and practical value.

An acoustic aural development system. A medical device is worn by an infant while the infant is in a neonatal intensive care unit (NICU) and is in communication with an acoustic processing station. The device and station protect the child's hearing by active acoustic filtering, while, at the same time, provides aural stimulation for development. Acoustic filtering is done at the acoustic processing station to reduce power and electronics required by the wearable medical device.

A method for optimizing acoustic performance in listening spaces addresses limitations in room acoustics for music production and reproduction. The method comprises two optimization steps: a multi-objective room optimization method applicable to any room shape and a multi-objective treatment optimization method that iteratively searches a library of potential acoustical treatments to determine optimal solutions for each accessible area. The method utilizes a multi-objective search engine to simultaneously optimize several critical acoustic metrics, including low-frequency response, spatial variation around listening positions, early reflections, modal temporal decay, and mid-to-high-frequency reverberation time. The integration of both optimization methods provides comprehensive acoustic control across the entire audible spectrum.

A fluid dispensing system includes a dispenser that includes a nozzle configured to dispense a fluid material to form an initial fluid portion for placement in and / or on a dispense location; and an acoustic processing system configured to manipulate the initial fluid portion to form a modified fluid material and / or a displaced fluid material. The fluid dispensing system moreover includes where the dispenser and / or the acoustic processing system are configured to place the modified fluid material and / or a displaced fluid material at the dispense location and form a deposited fluid material and / or to form a distributed fluid portion.

The present disclosure relates to an acoustic processing device that can suppress the occurrence of excessive atmospheric pressure changes in the eardrums of a user. Provided is an acoustic processing device comprising: a driver unit having a diaphragm; and a housing in which the driver unit is housed. The diaphragm has a vent hole that communicates a first space on a first surface side of the driver unit in the housing and a second space on a second surface side on the reverse side of the first surface. The present disclosure can be applied to, for example, an earphone device.

Provided is an acoustic processing device worn on the body of a user, the acoustic processing device being provided with: a sound collection unit that acquires ambient sound around the user; a receiving unit that receives feature information for a specific speech included in the speech output from the acoustic output device to the user; a processing unit that performs, on the basis of the feature information, acoustic processing on the ambient sound around the user collected by the sound collection unit; and the output unit outputs the environment sound processed by the processing unit to a user.

To provide an acoustic processing device that heightens a sense of realism given to acoustics listeners.SOLUTION: An acoustic processing device 1 comprises an acquisition unit 41, a storage unit 3, a processing unit 42, and a provision unit 43. The acquisition unit 41 acquires place information concerning a place where the sound field of an acoustic content 32 is reproduced. The storage unit 3 stores acoustic information 34 related to acoustics in a location corresponding to the place information. The processing unit 42 converts the acoustic characteristic of the acoustic content 32 into an acoustic characteristic corresponding to the location on the basis of the place information. The provision unit 43 provides the acoustic content 32 and the acoustic information 34 having been converted into the acoustic characteristic corresponding to the location. The acquisition unit 41 acquires the altered acoustic information 34. The storage unit 3 stores the acoustic content 32 and the acoustic information 34 associating with each other.SELECTED DRAWING: Figure 2

To enhance user experience.SOLUTION: A detection unit detects the orientation of a user P1 on the basis of signals output from a sensor. A display processing unit changes the orientation of a virtual camera 61 arranged in a virtual space so as to follow the orientation of the user P1 detected by the detection unit, and causes a display to display the image of the virtual space obtained by the virtual camera 61. An audio processing unit causes a plurality of speakers 30 to output audio in the virtual space, in such a manner that the orientation of a sound field formed by the audio in the virtual space output from the speakers 30 does not change even if the orientation of the virtual camera 61 changes.SELECTED DRAWING: Figure 8

The invention is suitable for the technical field of acoustic processing, and provides a voice propagation method capable of absorbing and reflecting, used equipment comprises a panel installed in a recording studio, the panel is provided with a plurality of conversion grooves arranged in a rectangular array, and the conversion grooves are internally provided with conversion assemblies capable of converting between a sound absorption mode and a reflection mode. A driving assembly for controlling the conversion assemblies to operate is arranged on the outer side of the panel, and the operation steps include S1, when pure'dry sound 'needs to be recorded in the recording studio, the driving assembly is started, the driving assembly drives the conversion assemblies in all the conversion grooves to operate, and the conversion assemblies are converted into sound absorption modes, and S2, when mixed sound needs to be recorded, the driving assembly is started, and the driving assembly drives the conversion assemblies in all the conversion grooves to operate. According to the sound processing method, the static state is converted into the dynamic state, one-key switching of acoustic scenes is achieved, and seamless conversion between the sound absorption mode and the reflection mode can be achieved in the same physical space according to actual requirements.

To improve a user experience.SOLUTION: In a virtual space, a first area 51 and a second area 52 that are adjacent mutually are provided. An acoustic effect added to a voice in the virtual space is correlated with each of the first area 51 and the second area 52. A boundary sound source 65 that is a virtual sound source is disposed in a boundary between the first area 51 and the second area 52. An acoustic processing section adds an acoustic effect correlated with an area positioned on a side close to a virtual microphone 62 in a boundary sound source 65 in the first area 51 and the second area 52 to a boundary voice that is a voice of the boundary sound source 65 obtained by the virtual microphone 62 disposed in the virtual space. An acoustic output section allows a speaker to output the boundary voice to which an acoustic effect is added by the acoustic processing section.SELECTED DRAWING: Figure 2

A storage unit stores a first transfer function representing a transfer characteristic of a sound from a sound source for each sound source direction, a sound source direction estimating unit calculates a conversion coefficient of an acoustic signal for each channel in a frequency domain and a spatial spectrum for each sound source direction on the basis of the first transfer function and estimates a sound source direction in which the spatial spectrum becomes a maximum as an estimated sound source direction, a transfer function estimating unit estimates a transfer function for the estimated sound source direction as a second transfer function by normalizing the conversion coefficients among channels, and a transfer function updating unit updates the first transfer function for the estimated sound source direction using the second transfer function.

To adjust the sound quality depending on how the sound is transmitted.SOLUTION: An ear device 100 includes a control unit 110 that performs acoustic processing on the basis of humidity data acquired by a humidity acquisition unit 150 when performing acoustic processing on the surrounding sound acquired by a sound acquisition unit 130 and outputting it from a sound output unit 140.SELECTED DRAWING: Figure 5

Title: Acoustic treatment device for a vehicle cooling system. Acoustic treatment device (1) intended to equip a cooling system of a vehicle and comprising at least one wall (4) participating in delimiting a duct (2) for the circulation of an airflow, the acoustic treatment device (1) comprising at least one network of resonators (16) formed by one or more rows (18) of resonators (16) arranged around the duct (2) perpendicular to an axis of elongation (A) of the duct, each resonator (16) of a row (18) of resonators (16) comprising at least one cavity (20) disposed in the wall (4) and a neck (22) connecting said cavity (20) to the duct (2), characterized in that, at least for a given dimension of the cavity (20) or of the neck (22), at least one resonator (16) of the row (18) has a value different from the value of the corresponding dimension of the other resonators (16) of the row (18). (Figure 3)

An acoustic treatment panel includes at least one acoustically resistive layer, a reflective layer and at least one cellular structure interposed between the acoustically resistive layer and the reflective layer. The cellular structure includes cylindrical and identical main tubes which are closed at one end by the acoustically resistive layer and at the other end by the reflective layer, spacer zones between the main tubes, the spacer zones being sealed relative to one another, cutouts made at an end of certain main tubes, in contact with the reflective layer, and / or secondary tubes positioned in the main tubes and / or in the spacer zones, the cutouts and / or the secondary tubes being configured to generate acoustic cells of different dimensions from identical main tubes.

The embodiment of the application relates to the technical field of robot control, and particularly relates to a robot multi-cavity sound production device.The device comprises a control module and at least one sound production module; the control module comprises a processor and a signal driver; the sound production module comprises a vibration module and an acoustic cavity in communication with the vibration module; the sound production module is in communication connection with the signal driver of the control module through a cable or a wireless communication module, the vibration module is arranged to be driven by the control module to generate an initial sound wave, the acoustic cavity is arranged to acoustically process the initial sound wave, and when the sound production module is multiple, the multiple sound production modules are arranged at different positions of a head, a neck or a trunk of a robot body respectively.The device can simulate the spatial listening of human sound production and the sound characteristics of the common sound production of multiple positions, enhances the authenticity of robot sound production, makes the robot output have natural human voice characteristics, enhances the immersion and naturalness of human-computer interaction, and improves the interaction experience.

The invention relates to a training method of an acoustic processing model, a voice processing method and a related product. The method comprises the steps of determining a first frequency spectrum of a sample object based on voices of the sample object in different preset time periods; performing fusion processing on the sample phoneme of the sample object in the current time period and the first frequency spectrum through an acoustic processing model to obtain fusion feature information; and performing acoustic processing on the fused feature information to obtain a second frequency spectrum, and training an acoustic processing model based on the difference between the second frequency spectrum and the label frequency spectrum of the sample phonemes. By adopting the method, the synthesized voice timbre is stable and more real.