Abstract: An audio analysis apparatus includes the following components. A main body includes a discrimination unit and a transmission unit. A strap is used for hanging the main body from a user's neck. A first audio acquisition device is provided to the strap or the main body. A second audio acquisition device is provided to the strap at a position where a distance between the second audio acquisition device and the user's mouth is smaller than the distance between the first audio acquisition device and the user's in a state where the strap is worn around the user's neck. The discrimination unit discriminates whether an acquired sound is an uttered voice of the user or of another person by comparing audio signals of the sound acquired by the first and second audio acquisition devices. The transmission unit transmits information including the discrimination result to an external apparatus.

Abstract: An acoustically isolated support and handle system for a sound pickup system includes vibrationally isolated, releasable connections for an adjustable microphone adapter in front of the reflector and for a pair of support handles and optionally a universal mounting bracket at the rear of the reflector. The handles provide a connection bracket for the optional use of a neck strap that would allow an operator to shift at least a portion of the weight of the device to the operator's neck and back while also providing the option for handheld aiming.

Abstract: Systems and methods for retaining a microphone using a microphone boot are disclosed. The microphone boot may include a sound channeling structure for receiving and delivering sound, and a microphone retaining block for retaining a microphone and passing the sound to the microphone. The sound channeling structure may be secured to a housing of an electronic device. The sound channeling structure may include a sound tube and a hooking component that may be insertable into a tunnel and a slot, respectively, of the microphone retaining block. The sound tube may deliver the sound into the tunnel for passing to the microphone. The hooking component may lock into the slot to secure the sound channeling structure to the microphone retaining block. Thus, the microphone boot may be tightly sealed to prevent leakage of the sound, and may fix the microphone within the electronic device even in the presence of external force.

Abstract: A processing chip for a digital microphone and related input circuit and a digital microphone are described herein. In one aspect, the input circuit for a processing chip of a digital microphone includes: a PMOS transistor, a resistor, a current source, and a low-pass filter. The described processing chip possesses high anti high-frequency interference capabilities and the described input circuit possesses high high-frequency power supply rejection ratio.

Abstract: Systems and methods for a bone-conduction transducer array configured to provide spatial audio are described, in which the bone-conduction transducer array may be coupled to a head-mountable device so as to provide sound, for example, to a wearer of the head-mountable device. Audio information and a vibration transducer from an array of vibration transducers coupled to the head-mountable computing device may be caused to vibrate based at least in part on the audio signal so as to transmit a sound. Information indicating a movement of the wearable computing device toward a given direction may be received. One or more parameters associated with causing the at least one vibration transducer to emulate the sound from the given direction may then be determined, wherein the one or more parameters are representative of a correlation between the audio information and the information indicating the movement.

Abstract: A communication system enhances communications in a noisy environment. Multiple input arrays convert a voiced or unvoiced signal into an analog signal. A converter receives the analog signal and generates digital signals. A digital signal processor determines temporal and spatial information from the digital signals. The processed signals are then converted to audible sound.

Abstract: The embodiments of the present invention provide a packaging component for a microphone, a packaging method for a microphone and an electronic device. The packaging component for the microphone includes: a microphone holder configured to fix the microphone; a housing configured to package the microphone holder; and a fixing member configured to fixedly connect the microphone holder to the housing, wherein the fixing member has a via hole therethrough, and the via hole is communicated with a space of the microphone holder to form an acoustic channel of the microphone. Through the embodiments of the present invention, the problem that the conventional packaging structure cannot apply an enough force to package the microphone is solved, and the waterproof and sealing effect of the microphone is enhanced. In addition, through the packaging component, a space around the sound reception hole of the microphone can be saved.

Abstract: Disclosed are an active delay method and an improved wireless binaural hearing device. The binaural hearing device includes: a first hearing device including a first microphone, an amplifier and a wireless transmitter; and a second hearing device including a second microphone, an amplifier, a wireless transmitter, a wireless receiver which receives a signal from the wireless transmitter, an active delay circuit which synchronizes the received signal with a signal acquired by the second microphone, a neural network which synchronizes the delayed signal, and a speaker which converts the synchronized signal into a voice signal. With this configuration, it is possible to prevent incorrect detection of the position of the sound source or paralalia due to a time delay which is produced in the wireless binaural hearing device and reduce noises due to a time difference between both hearing devices, thereby providing a binaural hearing device with high quality.

Abstract: A microphone includes a polar piece contacting with a first magnetic pole of a first permanent magnet, a yoke body annularly arranged around the polar piece through a magnetic gap G with a predetermined width, a magnetic circuit unit including a tail yoke connected to the yoke body and contacting with a second magnetic pole of the first permanent magnet, and a diaphragm unit provided with a voice coil arranged to vibrate in the magnetic gap. The second magnetic pole of the first permanent magnet contacts with one side of the tail yoke, a first magnetic pole of the second permanent magnet is disposed to contact with other side of the tail yoke, a magnetic path is produced between the second magnetic pole of the second permanent magnet and the yoke body, and the first permanent magnet and the second permanent magnet are polarized in the same sense.

Abstract: A microphone rubber apparatus mounted on an SMD microphone prepared on a printed circuit board to protect the SMD microphone from an external physical impact and the like in a portable communication device such as a portable terminal and a Personal Digital Assistant (PDA). The microphone rubber apparatus includes a microphone holder portion formed to engage with and wrap up a microphone, a connection portion protruding to one side of the microphone holder portion and delivering a transmission sound to the microphone through an inside thereof, and at least one shock absorbing portion deformably formed around the connection portion to ease an impact caused by an external force. Thus, the shock absorbing portion having a wrinkled shape can be deformed no matter in which direction an impact is applied to the portable communication device, thereby easing the impact and preventing the microphone rubber from being detached from the microphone due to the external impact or during a distribution test.

Abstract: A method of attenuating an input signal to obtain an output signal is described. The method comprises receiving the input signal, attenuating the input signal with a gain factor to obtain the output signal, applying a filter having a frequency response with a frequency-dependent filter gain to at least one of a copy of the input signal and a copy of the output signal to obtain a filtered signal, the frequency-dependent filter gain being arranged to emphasize frequencies within a number N of predetermined frequency ranges, N>1; wherein the filter comprises a sequence of N sub-filters, each one of the N sub-filters having a frequency response adapted to emphasize frequencies within a corresponding one of the N predetermined frequency ranges; determining a signal strength of the filtered signal, and determining the gain factor from at least the signal strength.

Abstract: A microphone array apparatus includes: an acquisition unit configured to acquire samples from a sound signal inputted from each of a plurality of microphones, at predetermined time intervals; an operation unit configured to calculate a value based on volumes of the sound signal possessed by a plurality of the samples for each of the sound signals inputted from the plurality of microphones; a correlation coefficient calculator configured to calculate a coefficient of correlation between the sound signals, on the basis of the values calculated for the respective sound signals; and a gain calculator configured to calculate reduction gain for the sound signals inputted from the plurality of microphones, on the basis of the coefficient of correlation.

Abstract: Audio data associated with a plurality of originating sources is obtained, the audio data directed to a participant entity. An originating entity associated with one of the originating sources is determined. A listener focus indication is obtained from the participant entity indicating a listener focus on the originating entity. A spatial positional relationship is determined between the participant and originating entities. A filtering operation is initiated to enhance a portion of the audio data associated with the originating entity, the portion enhanced relative to another portion of the audio data that is associated with the originating sources other than the first one. A spatialization of a stream of the first portion that is based on a participant positional listening perspective is initiated, based on the spatial positional relationship. Transmission of a spatial stream of audio data is initiated to the participant entity, based on the filtering operation and spatialization.

Abstract: A surface mountable microphone package comprises a first microphone and a second microphone. Furthermore, the surface mountable microphone package comprises a first opening for the first microphone and a second opening for the second microphone. The first opening and the second opening are arranged on opposite sides of the surface mountable microphone package.

Abstract: The subject disclosure is directed towards a noise adaptive beamformer that dynamically selects between microphone array channels, based upon noise energy floor levels that are measured when no actual signal (e.g., no speech) is present. When speech (or a similar desired signal) is detected, the beamformer selects which microphone signal to use in signal processing, e.g., corresponding to the lowest noise channel. Multiple channels may be selected, with their signals combined. The beamformer transitions back to the noise measurement phase when the actual signal is no longer detected, so that the beamformer dynamically adapts as noise levels change, including on a per-microphone basis, to account for microphone hardware differences, changing noise sources, and individual microphone deterioration.

Abstract: A connector with an audio receiving module provided for being electrically coupled to a main board of an electronic device includes an insulating base, an audio receiving module and a jack. The insulating base has a containing space and a containing groove, and the containing space has an opening, and the containing groove has a port. The audio receiving module is contained in the containing space and disposed at a position corresponding to the opening and includes a microphone unit and a plurality of pins, and the microphone unit is electrically coupled to each pin. The jack is contained in the containing groove and disposed at a position corresponding to the port. Therefore, the connector can provide an audio receiving effect.

Abstract: An instrument panel for a vehicle that includes a housing, a microphone and an actuator. The microphone is configured to detect a characteristic sound in the housing. The actuator is coupled to the housing, and the actuator is configured to emit the characteristic sound into the housing when actuated.

Abstract: A microphone assembly for use with an aftermarket telematics unit mounted in a passenger compartment of a vehicle is disclosed herein. The aftermarket telematics unit has a chamber having an opening that generally faces towards a rear of the vehicle and the microphone assembly includes, but is not limited to, a directional wideband microphone disposed within the chamber. A preamplifier is internally mounted within the directional wideband microphone. The preamplifier has an electrical lead and is both electrically and structurally attached to the aftermarket telematics unit via the electrical lead. The electrical lead is the sole means of physical attachment between the directional wideband microphone and the preamplifier, on the one hand, and the aftermarket telematics unit on the other hand.

Abstract: A system includes a first housing that houses a plurality of mechanical keys. A first microphone that is configured to detect a dynamic noise is located within the first housing and under the mechanical keys. A second microphone is configured to detect acoustic waves that include speech and to convert the acoustic waves into an electrical audio signal. The dynamic noise is not associated with the detected speech. The system further includes a dynamic audio signal filter that is configured to suppress, in the electrical audio signal, dynamic noise, and the dynamic audio signal filter is activated in response to the first microphone detecting the dynamic noise.

Abstract: A remote controlled robot system that includes a robot and a remote control station. The robot includes a binaural microphone system that is coupled to a speaker system of the remote control station. The binaural microphone system may include a pair of microphones located at opposite sides of a robot head. the location of the microphones roughly coincides with the location of ears on a human body. Such microphone location creates a mobile robot that more effectively simulates the tele-presence of an operator of the system. The robot may include two different microphone systems and the ability to switch between systems. For example, the robot may also include a zoom camera system and a directional microphone. The directional microphone may be utilized to capture sound from a direction that corresponds to an object zoomed upon by the camera system.

Abstract: An adaptor for retaining and suspending cabled microphones comprises a main body having a first threaded end and an opposite second threaded end with a circumferential flange separating the first and second threaded ends and extending from the main body. A bore extends longitudinally through main body. A cap threads onto the first threaded end and a nut threads onto the second threaded end. The microphone cable extends through a bore in each of the nut and the cap and through the bore 20 through main body. An O-ring is captured between the cap and main and prevents relative movement between the cable and the main body when the cap is tightened, and creates a plenum seal through the adaptor.

Abstract: An audio analysis apparatus includes the following components. A strap has an end portion connected to a main body and is used to hang the main body from a user's neck. A first audio acquisition device is at the end portion or in the main body. Second and third audio acquisition devices are at positions separate from the end portion by substantially the same predetermined distances, on the respective sides of the strap extending from the user's neck. An analysis unit discriminates whether an acquired sound is an uttered voice of the user or another person by comparing audio signals of acquired by the first and second or third audio acquisition devices and detects an orientation of the user's face by comparing the audio signals acquired by the second and third audio acquisition devices. A transmission unit transmits the analysis result to an external apparatus.

Abstract: A low-noise pre-amplifier with an active load element is integrated into a microphone. The microphone has an acoustic sensor coupled to the intrinsic pre-amplifier. A controllable current source is coupled to the intrinsic pre-amplifier and supplies a pre-amplifier bias current. A current source controller is coupled to the current source and controls the amplitude of the pre-amplifier bias current to maintain the intrinsic pre-amplifier at a bias point at which the intrinsic pre-amplifier amplifies microphone signals produced by the acoustic sensor. The intrinsic pre-amplifier may be actively regulated at the pre-determined bias point using negative feedback. Alternatively, the intrinsic pre-amplifier may be set to the pre-determined bias point by sweeping the pre-amplifier bias current for the intrinsic pre-amplifier over a range of currents.

Abstract: An eyewear device includes a noise cancelling microphone array, and corresponding method for the same. The eyewear device and its method of use facilitates human-machine interaction using speech recognition by reducing unwanted noise that corrupts the desired speech and thereby reduces errors in speech. The eyewear device includes an eyeglasses frame, an array of microphones coupled to the eyeglasses frame, the array of microphones including at least a first microphone and a second microphone, the first microphone coupled to the eyeglasses frame about a temple region, the temple region can be located approximately between a top corner of a lens opening and a support arm, and providing a first audio channel output, and the second microphone coupled to the eyeglasses frame about an inner edge of the lens opening, and providing a second audio channel output. Embodiments can further include a third and fourth omni-directional microphone, providing a third and fourth audio channel, respectively.

Abstract: An apparatus including a microphone; and a recording system including the microphone. The recording system includes a vibration bridge configured to couple the microphone to an apparatus chassis to receive surface vibrations when the apparatus chassis is coupled to a surface so as to create a file comprising surface texture information.

Abstract: An acoustic camera for using a MEMS microphone array comprises: an acoustic sensor apparatus (30) comprising a print circuit board (20) on which the plural of MEMS microphone (10) are mounted, to send signals for the detected sound to a data collection unit (40); a data collection unit (40) connected to the acoustic sensor apparatus (30), which samples analog signals related to sound transmitted from the acoustic sensor apparatus (30) to transform into digital signals and transmit them to the central processing unit (40); a central processing unit (50) connected to the data collection unit (40), which calculates noise level based on digital signals related to sound transmitted from the data collection unit (40); and a display unit (60) which is connected to the central processing unit (50), which displays in color the noise level calculated at the central processing unit.

Abstract: There is provided a capacitor microphone comprising a microphone capsule (100), which has an at least partially electrically conductive diaphragm (110) and a counterelectrode (120) associated therewith. The counterelectrode (120) has a printed circuit board (21) having a carrier of an insulating material (121a) and at least one electrically conductive surface (121b).

Abstract: A sound input device includes a housing, a microphone housing, a vibrator, and first and second sound guide components. The housing has first and second sound collection holes. The microphone housing has first and second microphone sound holes. The first and second sound guide components communicate with the first and second sound collection holes and the first and second microphone sound holes, respectively. The microphone housing has a first microphone inner space that communicates with the first microphone sound hole and one side of the diaphragm of the vibrator, and a second microphone inner space that communicates with the second microphone sound hole and the other side of the diaphragm. A spacing between the first sound collection hole and the second sound collection hole is wider than a spacing between the first microphone sound hole and the second microphone sound hole.

Abstract: A recording/reproducing apparatus includes a plurality of unidirectional microphones and a plurality of direction indicator switches. The unidirectional microphones are each disposed in the periphery with a predetermined angle interval therebetween, whereas the direction indicator switches are able to indicate other directions other than a plurality of directions corresponding to the unidirectional microphones. In a normal reproducing mode, a plurality of audio signals which are picked up by the unidirectional microphones and subsequently recorded is read and reproduced in parallel. When any one of the direction indicator switches is operated, only the audio signal emitted in the designated direction is selectively read and reproduced. When another direction other than a plurality of directions corresponding to the unidirectional microphones is designated, audio signals picked up by two unidirectional microphones which are disposed to sandwich the designated direction is selectively read and reproduced.

Abstract: A transducer assembly utilizing at least two MEMS transducers is provided, the transducer assembly preferably defining either an omnidirectional or directional microphone. In addition to at least first and second MEMS transducers, the assembly includes a signal processing circuit electrically connected to the MEMS transducers, a plurality of terminal pads electrically connected to the signal processing circuit, and a transducer enclosure housing the first and second MEMS transducers. The MEMS transducers may be electrically connected to the signal processing circuit using either wire bonds or a flip-chip design. The signal processing circuit may be comprised of either a discrete circuit or an integrated circuit. The first and second MEMS transducers may be electrically connected in series or in parallel to the signal processing circuit. The first and second MEMS transducers may be acoustically coupled in series or in parallel.

Abstract: According to an embodiment, a method of reducing noise in a signal received at a processing stage of an acoustic system includes, at the processing stage identifying at least one frequency which causes a system gain of the acoustic system to be above an average system gain of the acoustic system; providing a noise attenuation factor for reducing noise in the signal for the at least one frequency, the noise attenuation factor for the at least one frequency based on the system gain for that frequency; and applying the noise attenuation factor to a component of the signal at that frequency.

Abstract: The present publication describes a calibration method and apparatus, in which an electrical calibration signal is formed, an audio signal is formed in the loudspeaker from the calibration signal, the response of the audio signal is measured and analyzed, and the system is adjusted on the basis of the measurement results. The calibration signal is formed in the loudspeaker in such a way that it is essentially a sinusoidal signal, the frequency of which scans at least substantially through the entire audio frequency range.

Abstract: An electronic device is provided. The electronic device includes a case frame having an opening, a first unit, and at least one external environment sensor. The opening has a predetermined size and is formed in the case frame. The first unit is disposed inside the electronic device and is configured to perform a first function via the opening. The at least one external environment sensor is disposed inside the electronic device and detects an external environment condition via the opening. The electronic device uses an already formed opening for data input/output as an external connection path for the external environment sensor to avoid creating a separate opening for the external environment sensor.

Abstract: An air cushioned microphone cable retractor and receptacle assembly for use in controlling the deployment and retraction of a limited length of microphone cable includes a hollow cylindrical housing portion, in which a pulley mounted to a piston is disposed. A microphone cable is connected to the pulley, and then to the microphone, which is configured to reside in a top receptacle when not in use. In use, the microphone may be pulled out and away from the receptacle, at which time air above the piston is permitted to readily escape from above while the overall resistance is determined by operation of a lower relief valve. When the microphone is placed back in the receptacle, the weight of the piston pulls the cable back within the housing, with air venting structure providing an air damping feature to slow the retraction of the cable.

Abstract: A portable electronic device including an outer case having a wall in which a transducer-associated acoustic hole is formed. An inner case may be positioned inside the outer case. The inner case can include an acoustic port that opens to the transducer-associated acoustic hole and a relief port that opens to the outer case. A transducer having a diaphragm facing the acoustic port of the inner case is mounted within the inner case. A valve is further positioned over the relief port. The valve is configured to reduce an impact of an incoming air burst on the diaphragm.

Abstract: A device includes a microphone array fixed to the device. A signal processor produces an audio output using audio beamforming with input from the microphone array. The signal processor aims the beamforming in a selected direction. An orientation sensor—such as a compass, an accelerometer, or an inertial sensor—is coupled to the signal processor. The orientation sensor detects a change in the orientation of the microphone array and provides an orientation signal to the signal processor for adjusting the aim of the beamforming to maintain the selected direction. The device may include a camera that captures an image. An image processor may identify an audio source in the image and provide a signal adjusting the selected direction to follow the audio source. The image processor may receive the orientation signal and adjust the image for changes in the orientation of the camera before tracking movement of the audio source.

Abstract: There is provided a microphone comprising a microphone capsule and a microphone capsule suspension. The microphone capsule suspension has a first and a second housing portion and a decoupling unit. In that case the microphone capsule is mounted to the decoupling unit for solid-borne sound decoupling. The decoupling unit is in turn fixed to the first and/or second housing portion. The decoupling unit has a shape-changing portion which under loading changes its shape. The decoupling unit has at least two arms which each have a first and a second end. The second ends of the arms respectively have a fixing portion for receiving a microphone capsule. Each arm has a shape-changing portion which changes its shape under a first loading and an elastic portion which permits elastic deformation in respect of length as from a second loading.

Abstract: There is provided a narrow directional condenser microphone having an acoustic tube, in which a condenser microphone unit having a large effective diaphragm area is arranged on the rear end portion side of the acoustic tube to achieve high sensitivity without an increase in the diameter of the acoustic tube. In a narrow directional condenser microphone in which a unidirectional condenser microphone unit configured by arranging a diaphragm and a backplate opposedly via a spacer is arranged on the rear end side of an acoustic tube 10, the narrow directional condenser microphone is provided with a unit pair assembly 20 configured by opposedly combining two of the condenser microphone units 20R and 20L with the diaphragm side thereof being parallel to each other, and the unit pair assembly 20 is arranged on the rear end side of the acoustic tube 10 in such a manner that the condenser microphone units 20R and 20L are arranged symmetrically with respect to the tube axis X of the acoustic tube 10.

Abstract: An electrically powered flame simulator comprises at least two light sources, an integrated circuit electrically connected to the light sources for intermittently illuminating at least one of the light sources independently of other light sources such that the light sources together provide the effect of a flickering movement, and a power source for providing power to the integrated circuit. The flame simulator may be mounted in a decorative or ornamental device such as a candle or fire log, or used on decorative clothing, or may be part of a hazard or warning system. One or more solid state light sources may also be used.

Abstract: An electronic device has a housing in which components are installed. The components contain audio components having audio ports and terminals. Elastomeric material is molded over the surface of an audio component so that the leads attached to the terminals protrude through the elastomeric material. The protruding portions of the leads are bent back to lie flush with the surface of the elastomeric material. The elastomeric material are configured to form elastomeric structures with an opening that is aligned with the audio port in a component. The housing of an electronic device has one or more openings that form an audio port. The opening in the elastomeric structures that are molded onto the audio component is aligned with the audio port in the housing and the audio port in the audio component. Mesh structures cover the audio port in the housing.

Abstract: There is provided a sound collecting device, including: an orientation direction forming section that forms an orientation direction of a microphone array; and a control section that, when a characteristic in a frequency band of a synthesized signal obtained by synthesizing the acoustic signals corresponds to a characteristic of an acoustic signal corresponding to a sound other than a target sound, controls the orientation direction forming section such that an orientation direction that is a direction that is different than an orientation direction of the microphone array at a present point in time is formed, and, when the characteristic in the frequency band of the synthesized signal does not correspond to a characteristic of an acoustic signal corresponding to a sound other than the target sound, controls the orientation direction forming section such that the orientation direction of the microphone array is maintained.

Abstract: A method and apparatus for capturing image and sound during interactivity with a computer program is provided. The apparatus includes an image capture unit that is configured to capture one or more image frames. Also provided is a sound capture unit. The sound capture unit is configured to identify one or more sound sources. The sound capture unit generates data capable of being analyzed to determine a zone of focus at which to process sound to the substantial exclusion of sounds outside of the zone of focus. In this manner, sound that is captured and processed for the zone of focus is used for interactivity with the computer program.

Abstract: An electronic device may be provided with environmental sensors. Environmental sensors may include one or more environmental sensor components and one or more acoustic components. Acoustic components may include a speaker or a microphone. Environmental sensor components may include a temperature sensor, a pressure sensor, a humidity sensor, or other sensors or combinations of sensors for sensing attributes of the environment surrounding the device. The environmental sensor may have an enclosure with an opening. The enclosure may be formed from a rigid support structure and a portion of a printed circuit. The opening may be formed in the rigid support structure or the printed circuit. The opening in the enclosure for the environmental sensor may be aligned with an opening in an outer structural member for the device. The outer structural member may be a housing structure or a cover layer for a device display.

Abstract: An electronic device may have a conductive housing with an antenna window. Antenna structures may be mounted adjacent to the antenna window. The antenna structures may have a dielectric carrier. Patterned metal antenna traces may be formed on the surface of the dielectric carrier. A proximity sensor may be formed from a flexible printed circuit mounted on the dielectric carrier. The flexible printed circuit may have a tail that contains a transmission line for feeding the antenna structures. The transmission line may include a positive signal conductor that is maintained at a desired distance from the conductive housing using a polymer sheet. A portion of the antenna structures may protrude between a microphone and a camera module. Plastic camera module housing structures may have an inner surface coated with a shielding metal. A U-shaped conductive fabric layer may be used as a grounding structure.

Abstract: A boundary microphone includes: a base made of metal; a cover that is made of metal and has a plurality of holes through which a sound wave is guided; a microphone unit that converts sound into an electric signal; and a microphone unit holder slidably provided on the base and holds the microphone unit. The microphone unit holder has a knob. The base has a hole through which the knob of the microphone unit holder penetrates the base. The knob of the microphone unit holder and the hole of the base are so provided that the microphone unit holder can be moved with the microphone unit by a movement of the knob within a range defined by the hole.

Abstract: In reverberant environments, reflected waves including an echoic sound and a muffled sound affect and disable recognition of sound arrival directions. As a result, the subjective clearness of the sounds deteriorates. In order to enhance the clearness of a reproduced sound in a reverberant environment, a pre-processing filter unit corrects an input sound signal portion having a frequency band relating to human auditory recognition on a sound wave arrival direction, and speakers reproduce the sound signal. The correction involves attenuating an input sound signal in the frequency band portion, based on the relationship between the frequencies of the input sound signal and the magnitude of influence to the recognition of the sound wave arrival direction. This attenuation is achieved by filtering using filter coefficients that are set by a first filter characteristic setting unit using hearing characteristic parameters that are set by a hearing characteristic setting unit.

Abstract: Systems and methods for retaining a microphone using a microphone boot are disclosed. The microphone boot may include a sound channeling structure for receiving and delivering sound, and a microphone retaining block for retaining a microphone and passing the sound to the microphone. The sound channeling structure may be secured to a housing of an electronic device. The sound channeling structure may include a sound tube and a hooking component that may be insertable into a tunnel and a slot, respectively, of the microphone retaining block. The sound tube may deliver the sound into the tunnel for passing to the microphone. The hooking component may lock into the slot to secure the sound channeling structure to the microphone retaining block. Thus, the microphone boot may be tightly sealed to prevent leakage of the sound, and may fix the microphone within the electronic device even in the presence of external force.

Abstract: A microphone compensation system responds to changes in the characteristics of individual microphones in an array of microphones. The microphone compensation system provides a communication system with consistent performance despite microphone aging, widely varying environmental conditions, and other factors that alter the characteristics of the microphones. Furthermore, lengthy, complex, and costly measurement and analysis phases for determining initial settings for filters in the communication system are eliminated.

Abstract: A speaker system includes a case defining a center hole and a body surrounding the center hole, an electroacoustic transducer received in the center hole of a case, and a microphone. The body of the case defines a sidewall, a bottom extending outwards from the sidewall, and a projecting element extending upwardly from the bottom and opposite to the sidewall. A slot is formed between the projecting element and the sidewall, and the microphone is positioned in the slot.

Abstract: A system and method for use in filtering of an acoustic signal are provided for producing an output signal of attenuated amount of diffuse sound in accordance with predetermined parameters of desired output directional response and required attenuation of diffuse sound. The system includes a filtration module and a filter generation module including a directional analysis module and filter construction module.