Electrical audio signal processing systems and devices inventions 06/06

20060140412 - Multi parametrisation based multi-channel reconstruction: A multi-channel synthesizer for generating at least three output channels using an input signal having at least one base channel, the base channel being derived from the original multi-channel signal, the input signal further including at least two different up-mixing parameters, and an up-mixer mode indication indicating, in a first...

20060140413 - Method and apparatus for classifying signals, method and apparatus for generating descriptors and method and apparatus for retrieving signals: The input signal can be quickly and accurately classified and a descriptor can be generated according to the result of classification. Then, the input signal can be retrieved on the basis of the result of classification or the descriptor. A signal processing apparatus comprises a time block splitting section 3...

20060140414 - Method and device for measuring sound wave propagation time between loudspeaker and microphone: A device 1 for measuring a propagation time of a sound wave comprises a sound source means 11 and a calculation means 12. The sound source means 11 outputs a time stretched pulse as a sound source signal input to a speaker 3. The calculation means 12 calculates a cross-correlation...

20060140416 - Active hearing protection system and method: The invention relates to a hearing protection system comprising a first and a second hearing protection device (10), each hearing protection device comprising an active unit (16) comprising an acoustic input transducer (18, 19) for converting ambient sound into input audio signals, and an acoustic output transducer (22) for transforming...

20060140415 - Method and system for providing active hearing protection: The invention relates to a method for providing hearing protection to a person, comprising: providing each of the person's ears with a hearing protection device (10, 12) in such a manner that an acoustic attenuation of at least 10 dB averaged over the audible frequency range is achieved; converting, by...

20060140417 - Method and apparatus for audio signal enhancement: A method for audio signal enhancement comprising obtaining (222) a first audio signal from a first physical microphone element and obtaining a second audio signal from a second physical microphone element. The audio signals are array processed (226) to generate a virtual linear first order element and a virtual non-linear...

20060140418 - Method of compensating audio frequency response characteristics in real-time and a sound system using the same: A method of compensating audio frequency response characteristics of a portable sound system can be performed using acoustic characteristics of a user measured in real-time. The method of compensating the audio frequency response characteristics can be used by a portable sound system. The method includes generating an acoustic characteristics curve...

20060140419 - Vacuum tube audio frequency power amplifier variable amplitude clipper: The Vacuum Tube Audio Frequency Power Amplifier Variable Amplitude Clipper provides a new method of varying vacuum tube power amplifier output power/volume to the loudspeaker. The amplitude at which power tube clipping occurs can be varied allowing one to take advantage of the inherent volume compression and output limiting at...

20060140420 - Eye-based control of directed sound generation: In one aspect, an electronic system includes a source of an audio signal, a sound projector, an imaging system, and a controller. The sound projector is operable to generate at least one directed sound beam based on the audio signal. The imaging system is operable to capture images of a...

20060140421 - Sound fishing lure and method for using: A sound fishing lure with a speaker system. A power source provides power to an integrated circuit chip programmed to produce electronic signals that when transmitted to the speaker produce animal sounds. Fish hearing the sounds are attracted to the fishing lure. In a preferred embodiment, the chip is programmed...

20060140422 - Apparatus and method for receiving inputs from a user: An apparatus (300) and method (500) for receiving inputs from a user (102) is provided. The inputs from the user may be head gestures and/or speech of the user. The head gestures refer to movements of the head of the user. The apparatus includes an accelerometer (303) for receiving inputs...

20060140423 - Condenser microphone and method for manufacturing the same: A condenser microphone includes a housing and a microphone unit arranged within the housing. The microphone unit includes an annular retainer oriented in confronting relation to the front end wall of the housing, a movable diaphragm connected to the annular retainer, an annular spacer connected to one side of the...

20060140424 - Piezoelectric panel speaker: A piezoelectric panel speaker improved in frequency characteristics has a panel and a piezoelectric exciter for vibrating the panel. The exciter includes a casing and a piezoelectric exciter element accommodated in the casing. The casing has an outer surface with a part positioned proximate to and facing one side surface...

20060140426 - Hearing protection device and use of such a device: The invention relates to a hearing protection device comprising two earplugs (10, 12) to be worn at least in part in a user's right and left ear canal, respectively, and flexible means (14) for mechanically connecting the two earplugs, wherein at least one of said earplugs comprises an acoustic output...

20060140425 - Personal monitoring system for a user and method for monitoring a user: The invention relates to a personal monitoring system for a user, comprising: at least one of a sensor (26, 28) for sensing an internal body parameter of the user and a sensor (14, 26, 28) for sensing an ambient parameter of the ambient around said user, an earpiece (10) for...

20060140427 - Process for the visualization of hearing ability: For the visualisation of the hearing ability or hearing recognition respectively of a person with or without a hearing device at least one hearing dimension as for instance the loudness recognition is being made visible by means of a picture by varying at least one picture parameter such as for...

20060140428 - Mobile wireless communications device with slidable configuration providing hearing aid compatibility features and related methods: A mobile wireless communications device is for a user wearing an electronic hearing aid adjacent an ear of the user and may include an upper housing and a lower housing being slidably connected together for sliding between a retracted position and an extended use position. An audio output transducer may...

20060140429 - Heating aid with acoustic feedback suppression: A hearing aid having an input transducer (2), a signal processor (3), an output transducer (4) and an adaptive filter (5) for generating a feedback cancellation signal (101) further comprises a norm estimator (10) generating a first norm signal (109) indicative of a norm of the electrical input signal and...

20060140430 - Method for manufacturing an ear device having a retention element: The invention relates to a method for manufacturing a first ear device having (12) a first retention element (14) to be worn at least in part in at least one of the outer ear and the ear canal of a user and a second ear device (12′) having a second...

20060140431 - Multielement microphone: An improved microphone assembly (128) is provided for porting two microphones (240, 242) of an opposing pair used for beam forming through a single symmetric porting structure (244). The microphone assembly (128) includes a first microphone capsule (240), a second microphone capsule (242) and a porting structure (244). The porting...

20060140432 - Waterproof microphone: An anterior wall of a case has a central aperture and two discharge apertures extending from the central aperture. There is an anterior chamber inside the anterior wall. Moisture such as rain water, even if entering the anterior chamber, is smoothly discharged out of the case from the discharge apertures...

20060140433 - Dual sided ear cup: The present embodiments provide dual sided ear cup systems (620) operable with devices, such as a communication device (120). The dual sided ear cup system includes a transducer (622) that generates acoustical signals from both a front side (624) and a back side (626). The system preferably further includes a...

20060140434 - Fabricating method of earphone: A fabricating method of earphone is provided. A housing is provided first in this method. The housing has a holding space, an entrance-end and a corresponding output-end. The housing has a stopping-portion in the output-end. Then, a micro speaker is disposed into the holding space from the entrance-end of the...

20060140435 - Headset including boom-actuated microphone switch: A headset (110, 500) includes a boom-actuated switch (134, 534) for enabling and disabling a microphone (132, 532). The headset (110, 500) includes a pivotal boom (226, 526) for supporting the microphone (132, 532). The headset (110, 500) further includes communication circuit (114, 144) for communicating with a communication device...

20060140436 - Method and system for assembling electroacoustic transducers: Method and system are disclosed for facilitating automatic assembly of electroacoustic transducers for listening devices, such as hearing aids. The method and system provide the components of the electroacoustic transducer in the form of carriers. Each carrier includes a frame surrounding a preformed component. The preformed component is attached to...

20060140437 - Acoustic device and flat speaker thereof: A flat speaker includes a casing with a display window, a vibratory sound panel mounted to the display window and having a display region and an exciter mount region, a display screen disposed internally of the display region, and an exciter mounted to the inner surface of the exciter mount...

20060140438 - Flat panel speaker, electronic device having same, and structure and method for mounting same: A structure and method for mounting a flat panel speaker are provided which are capable of reliably and accurately positioning a diaphragm in a cabinet and of improving an acoustic characteristic of the flat panel speaker. At least one first protruding portion formed in rectangular portions strikes a first side...

20060140439 - Gasket member, diaphragm, flat panel speaker, method of mounting same flat panel speaker, and method of assembling electronic device: A method of mounting a flat panel speaker is provided which is capable of reliably preventing entry of dust and of shortening assembling time. By bonding a gasket member to a diaphragm, by pasting a separator to a gasket member side opposite to the diaphragm and, by sandwiching the diaphragm...

20060133618 - Stereo compatible multi-channel audio coding: A parametric representation of a multi-channel audio signal having parameters suited to be used together with a monophonic downmix signal to calculate a reconstruction of the multi-channel audio signal can efficiently be derived in a stereo-backwards compatible way when a parameter combiner is used to generate the parametric representation by...

20060133619 - Spatial sound conference system and method: The spatial sound conference system enables participants in a teleconference to distinguish between speakers even during periods of interruption and overtalk, identify speakers based on spatial location cues, understand low volume speech, and block out background noise using spatial sound information. Spatial sound information may be captured using microphones positioned...

20060133620 - Method and apparatus for frame-based loudspeaker equalization: A method and apparatus for loudpeaker equalization are described. In one embodiment, the method comprising generating a set of parameters using an invertible, non-linear system based on input audio data and output data corresponding to a prediction of an output of a loudspeaker in response to the input data, and...

20060133623 - System and method for microphone gain adjust based on speaker orientation: A system and method for automatically adjusting the gain of an audio system as a speaker's head moves relative to a microphone includes using a video of the speaker to determine an orientation of the speaker's head relative to the microphone and, hence, a gain adjust signal. The gain adjust...

20060133621 - Wireless telephone having multiple microphones: The present invention is directed to a wireless telephone having a first microphone and a second microphone and a method for processing audio signal in a wireless telephone having a first microphone and a second microphone. The wireless telephone includes a first microphone, a second microphone, and a signal processor....

20060133622 - Wireless telephone with adaptive microphone array: A wireless telephone having an array of microphones and a digital signal processor (DSP) and a method of processing audio signals from a wireless telephone having an array of microphones and a DSP. The wireless telephone includes an array of microphones and a DSP. Each microphone in the array is...

20060133624 - Apparatus and method for audio content analysis, marking and summing: An apparatus and method for the analysis, marking and summing of audio channel content and control data, the apparatus and method generating a summed signal carrying combined audio content, marking and summing data in the summed signal....

20060133625 - Audio amplifier attachable to speaker system by way of magnetic coupler and method therefor: An audio amplifier and speaker system are stacked and magnetically coupled together. The audio amplifier is coupled for receiving an audio signal. A first securing assembly is provided on a bottom surface of the amplifier. The first securing assembly may be a foot formed on the bottom surface of the...

20060133626 - Capacitor microphone: A capacitor microphone in which a microphone case is made of a conductive material, has a microphone case connector connecting a cable connector at one end of a microphone cable to an internal circuit of a microphone, and is in electrical connection with the cable connector, and in which a...

20060133627 - Audio communication unit: A voice communication unit for communicating though a barrier includes an outer audio unit including an outer voice sensing device and an outer voice reproducing device, an inner audio unit including an inner voice sensing device and an inner voice reproducing device, and a signal processing unit which connects the...

20060133628 - System and method for forming and rendering 3d midi messages: MIDI-generated audio streams or other input streams of audio events are perceptually associated with specific locations in 3D space with respect to the listener. A conventional pan parameter is redefined so that it no longer specifies the relative balance between the audio being fed to two fixed speaker locations. Instead,...

20060133629 - In-ear monitor with hybrid diaphragm and armature design: An in-ear monitor for use with either a recorded or a live audio source is provided. The disclosed in-ear monitor combines a single diaphragm driver and a single armature driver within a single earpiece, thereby taking advantage of the capabilities of each type of driver. Preferably, the diaphragm is used...

20060133630 - In-ear monitor with hybrid dual diaphragm and single armature design: An in-ear monitor for use with either a recorded or a live audio source is provided. The disclosed in-ear monitor combines a pair of diaphragm drivers and a single armature driver within a single earpiece, thereby taking advantage of the capabilities of both types of driver. Preferably, the diaphragm is...

20060133631 - In-ear monitor with shaped dual bore: A multi-driver in-ear monitor for use with either a recorded or a live audio source is provided. If a pair of drivers is used, each driver has an individual sound delivery tube. If three drivers are used, the outputs from two of the drivers are merged into a single sound...

20060133632 - In-ear monitors with removable cables: An audio monitor system that includes a pair of in-ear monitors, each of which includes a connector and a corresponding detachable cable, is provided. Each connector may include a two pin jack assembly and each detachable cable may include a corresponding two pin plug assembly. Preferably, each plug assembly of...

20060133633 - Mobile telephone with metal sensor: A mobile telephone including a hearing aid compatible system for coupling an output of the mobile telephone to a hearing aid device of a user; and a metal detector system adapted to detect a metal object brought into proximity relative to the mobile telephone....

20060133634 - Method of obtaining a three-dimensional image of the outer ear canal: The present invention relates to a method of obtaining a three-dimensional (3D) image of the outer ear canal. This will be achieved by scanning at least the outer ear canal by use of a video camera, transmitting the image data of the video camera through a connection to a service...

20060133635 - Apparatus for the measuring of fluid levels and pumping of the same: A device for employing sonic transmissions is utilized to determine fluid level in a well or a container. The device may be utilized while the well is operating. It is known that wells replenish fluid at different rates even in the same formation or well field. Increased well production at...

20060133636 - Sound tube tuned multi-driver earpiece: A method of optimizing the audio performance of an earpiece and the resultant device are provided. The disclosed earpiece combines at least two drivers within a single earpiece. If a pair of drivers is used, each driver has a discrete sound delivery tube. If more than two drivers are used,...

20060133637 - Loudspeaker with integrated spider standoff ring: A loudspeaker is provided in which the outer diameter or foot of the spider is over molded with a standoff formed of a plastic material in an injection molding tool so that the spider and standoff form an integral unit. The standoff, in turn, is glued or otherwise affixed to...

20060133638 - Audio speaker utilizing an unanchored magnet for primary force generation: A speaker apparatus has a container holding a volume of ferrofluid, a permanent magnet suspended in the ferrofluid, and a magnetic excitation apparatus proximate the container. Operation of the excitation apparatus causes movement of the permanent magnet, translated through the ferrofluid to walls of the container, which walls act as...

20060133639 - Diaphragm for loudspeaker - magnesium alloy base and multi-layers ceramic structure: A diaphragm for loudspeakers comprises the magnesium base alloy as a substrate, in which the content of magnesium is over than 90% and the outer layers are porous oxide ceramic layers. The composite multi-layers structure of this magnesium base diaphragm is formed by the process of micro-arc plasma-electrolytic treatment (MAPET),...

20060133640 - Loudspeaker lead wire management system: This invention is directed to a loudspeaker having a lead wire management system including guides located at both the voice coil and the frame of the speaker. Each guide is angled allowing them to control the arc at which the lead wires extend between the voice coil and frame, and...

20060126851 - Acoustic correction apparatus: An acoustic correction apparatus processes a pair of left and right input signals to compensate for spatial distortion as a function of frequency when said input signals are reproduced through loudspeakers in a sound system. The sound-energy of the left and right input signals is separated and corrected in a...

20060126853 - Audio signal processing method and apparatus: In case of carrying out a correction process for outputting an inputted audio signal from a speaker having a predetermined input-output characteristic and in a case, as for the predetermined input-output characteristic of the speaker, when characteristic in which linearity of an output level with respect to an input signal...

20060126852 - Method and system for processing a sound field representation: A method of processing a sound field representation which can be used to provide a representation which has been modified by at least spatial processing. The method includes: the establishment of an initial representation of the sound field and the establishment of a representation which has been modified by filtering...

20060126854 - Acoustic apparatus: An acoustic apparatus includes a plurality of speakers that is arranged in predetermined individual positions; a plurality of sound sources that sends respective independent audio signals; an audio signal processing unit that sends sound field generation signals of a plurality of channels based on an audio signal supplied from a...

20060126855 - Method and device for determining acoustical transfer impedance: A method and device for determining acoustical transfer impedance The method comprises generating an acoustical volume velocity Q in the listening position, measuring a response quantity p, such as sound or vibration, at a suspected source position resulting from the volume velocity Q, and determining the acoustical transfer impedance Zt...

20060126856 - Volume control method and audio device: A volume control method. An audio device. A portable communication system. First, an audio signal is input. At least one environmental noise is detected. An output gain is then determined based on the environmental noise, and the audio signal is amplified based thereon. The environmental noise comprises noises from various...

20060126857 - Speaker diagnostics based upon driving-point impedance: A speaker (100) having a diagnostic capability, as well as a circuit (101) and related methods (500) for performing speaker diagnostics based upon a driving-point impedance are provided. The speaker includes a flexible cone (104) and a voice coil (106) connected to the flexible cone for driving the flexible cone...

20060126858 - Room volume and room dimension estimation: One embodiment of the invention includes a processing subsystem (30) responsive to the detection of sound coming from a room (26) to establish an acoustic impulse response for the room (26), and determine a number of sound reflections corresponding to the impulse response. This subsystem (30) is further operable to...

20060126859 - Sound system improving speech intelligibility: The invention relates to a method and a device for improving speech intelligibility for a listener receiving a speech signal output through a transducer in a noisy environment, where in the speech signal prior to the output one or more parameters have been modified in a signal processor corresponding to...

20060126862 - Distributed audio system: A distributed stereo system includes two (or more) speakers; a source of audio signals; an amplifier in the same room as the speakers that drives the speakers; and a mains-operated electrical power supply to power the amplifier. The amplifier is remote from the signal source and power supply and is...

20060126860 - Flexible lighting and sound configuration: An audio output device (101) is configured to transmit an audio signal to an external power amplifier (107). The transmission of the audio signal can be accomplished by means of a wireless transmitter (401) or standard audio cable (103). The power amplifier (107), a low voltage power supply (111), and...

20060126861 - Personal listening device for events: Herein is disclosed a method and apparatus for transmitting sound generated at an event to those in attendance at the event. This is accomplished by a system that collects an acoustic audio signal generated at a first location within a fixed space. The system also conditions the audio signal without...

20060126863 - System and method for controlling a recording studio: A wireless remote control system for controlling an audio recording system in a recording studio is disclosed. This system incorporates a small wireless remote that can be mounted directly on the user's body that may include an arm, wrist, leg, belt, or any member. This remote controller may also be...

20060126864 - Circuit and method for eliminating pop noise in digital audio amplifier using dual power supply: Provided are a circuit for and a method of eliminating pop noise in a digital audio amplifier using dual power supply, which are simple, drop in price, and can be readily implemented in a semiconductor chip. According to an existing technique, pop noise is eliminated using a relay. However, in...

20060126865 - Method and apparatus for adaptive sound processing parameters: An input sound signal (210) is processed in order to meet a target dynamic range (910, 920). At least one gain, specific to the input sound signal (210), is applied to the input sound signal (210) to produce a processed sound signal (214). A dynamic range of the processed sound...

20060126866 - Dynamic volume control: In accordance with one aspect of the dynamic volume control, an indication that a user desires to input oral data to a system through one or more microphones of the system is received. In response to receipt of the indication, a volume level for audible signals output by one or...

20060126867 - Multi-input gain control circuit: A method and apparatus for selecting and mixing electronic signals. The circuit has an operational amplifier and two or more ganged, tapped-resistors in which the tap divides the resistance into a first and a second resistance. The tapped-resistors are connected so that either the first or the second resistance provides...

20060126868 - Method for manufacturing a crystal device: A method of manufacturing a crystal device includes applying substantially simultaneously a first light that is absorbed by a crystal plate and excites an energy level of a substance constituting the crystal plate from a ground state to a first excited state, and a second light that excites the energy...

20060126869 - Flat piezoelectric speaker actuator: m

20060126870 - Portable computer and side direction sound box thereof: A side direction sound box is disposed in a mainframe of a portable computer. The sound box includes a first shell, an amplifier, and a second shell. The first shell has a first surface. The amplifier is disposed on the first surface of the first shell. The second shell is...

20060126871 - Audio reproducing apparatus: In an audio reproducing apparatus, first and second filters convolute impulse responses corresponding to transfer functions from a position where a right-hand sound source is located to the right and left ears of the listener into an audio signal, respectively, and third and fourth filters convolute impulse responses corresponding to...

20060126873 - Apparatus for generating magnetic field in portable wireless terminal for the hearing impaired: Disclosed is an apparatus for generating a magnetic field in a portable wireless terminal for a hearing impaired person. In the apparatus, an amplifier amplifies a voice-band electric signal received from a CODEC to a predetermined level, and a coil converts the amplified electric signal into a corresponding magnetic signal....

20060126872 - Method to adjust parameters of a transfer function of a hearing device as well as hearing device: A method to adjust parameters of a transfer function of a hearing device is disclosed, the method comprising the steps of extracting features of an input signal fed to the hearing device, classifying the extracted features into one of several possible classes, selecting a class corresponding to a best estimate...

20060126874 - Hearing-aid anchoring element: An anchoring system for anchoring a percutaneous attachment for a direct bone-conduction hearing-aid or an outer ear prosthesis to the skull bone, comprising a fixture portion, the fixture portion having a threaded portion. A flange is disposed at one end of the fixture portion. The flange has a surface facing...

20060126875 - Electrical and mechanical connection between head worn communication device and accessory thereto: The invention concerns an electrical and mechanical connection between a head worn communication device and an accessory thereto. Mechanical connection means and electrical connection points at the communication device are placed at one and the same surface part, and further connection means and electrical connection points at the accessory are...

20060126876 - Remote magnetic activation of hearing devices: A magnetic switch assembly for hearing devices designed for remote activation by the user is highly miniaturized with a self-contained latching mechanism. The switch is activated and deactivated by the user via a hand-held magnet placed in proximity to the hearing device. The switch assembly includes a miniature reed switch...

20060126877 - Method for simulating a movement by means of an acoustic reproduction device, and sound reproduction arrangement therefor: A system and method is disclosed for simulating a movement in a predetermined direction relative to a reference point in the surroundings of an acoustic reproduction device, wherein at least two virtual sound sources are produced via the acoustic reproduction device. The acoustic reproduction device is preferably controlled using a...

20060126878 - Audio playback method and apparatus using line array speaker unit: A multi-channel audio system is constituted using at least one line array speaker unit, in which plural speakers are arrayed in line, wherein the same audio signal is supplied with a prescribed delay time to each of the speakers, thus forming plural sound beams. The plural sound beams are reflected...

20060126879 - Speaker module: A speaker module comprising a housing, a speaker enclosure, a speaker unit and a buffer element is provided. The housing has an orientating element connected to an inner wall of the housing to form a mounting space inside the housing. The speaker enclosure is disposed inside the mounting space. The...

20060126880 - Microphone: A microphone includes a tubular housing extending along a longitudinal axis, a perforated cover mounted on a front open end of the housing and having a circular cross section along a plane transverse to the longitudinal axis, and a positioning ring sleeved on the perforated cover and having an outer...

20060126881 - Headphone: The present invention aims to provide headphones having no headband in which left and right driver units are connected by a cord passed behind the neck, wherein the headphones will not slip off if hung on the shoulders when not being used and are intended to improve fashionableness; in headphones...

20060126882 - Earphone: Earphones are provided. An earphone includes a first speaker, a second speaker, and an extendable winding structure. The first speaker can hang on one ear of a person. The second speaker is detachably fixed on the first speaker. The extendable winding structure is disposed in the first speaker and connected...

20060126883 - Device with speaker and retractable cable unit: A device with speakers can include a cable unit with a connection plug connectable to a portable media unit. The cable can provide an audio signal from the portable media unit to a speaker of the device. The cable be attached to the portable media unit. A removable module for...

20060126884 - Method and device for cooling ultrasonic transducers: The invention relates to a method and a device for cooling ultrasonic transducers. The inventive device is characterised in that it consists of at least one piezo stack (4) and at least two cylindrical transducer bodies (5), which together with the piezo stack (4) form an λ/2 oscillator. In multiple...

20060126885 - Sound transducer for solid surfaces: A sound transducer (10) for imparting acoustical energy directly to a solid surface (12) while achieving the sound quality and frequency response found only in conventional diaphragm speakers. The sound transducer (10) comprises a pair of symmetrical magnet assemblies (16, 18), a pair of symmetrical voice coils (66, 68), and...

20060126886 - Sound transducer for solid surfaces: A sound transducer (10) for imparting acoustical energy directly to a solid surface (12) while achieving the sound quality and frequency response found only in conventional diaphragm speakers. The sound transducer (10) comprises a pair of symmetrical magnet assemblies (16, 18), a pair of symmetrical voice coils (66, 68), and...

20060115090 - Stereo widening network for two loudspeakers: The invention relates to a method, a system, a module, an electronic device and to a computer program product for widening a two-channel input. Two audio channels are input and filtered by equalizing said channels. The filtered channels are mixed with their opposite channels in a cross-talk network and output...

20060115091 - Apparatus and method of processing multi-channel audio input signals to produce at least two channel output signals therefrom, and computer readable medium containing executable code to perform the method: An apparatus to process m-channel audio input signals to produce n channel output signals, and n is less than m. This apparatus includes a first filter unit to reduce a correlation between at least two channel audio input signals among the m-channel audio input signals, a virtual sound source generation...

20060115092 - Encoding device and decoding device: The present invention relates to an encoding device for saving the number of bits of codes. In step S11, the differential value between a normalization coefficient Bi to be encoded and a normalization coefficient Bi-1 for an encoding unit Ai-1 in a band adjacent to the lower side of an...

20060115093 - Audio signal processing method and apparatus: When an inputted audio signal is outputted from a speaker device having a predetermined input-output characteristic, the predetermined input-output characteristic being selected such that the linearity of an output level with respect to an input signal is approximately assured at a level equal to a predetermined level or more and...

20060115094 - Howling suppression device and howling suppression method: An acoustic feedback suppression apparatus according to the present invention comprises a notch filter (109) for filtering out acoustic feedback components, a plurality of first sample fast Fourier transformation means (118 to 120) for performing frequency analysis of every 512 data samples, a plurality of peak frequency detecting means (121...

20060115095 - Reverberation estimation and suppression system: A signal processing system detects reverberation. The system may suppress the reverberation and improve signal quality. The system analyzes frequency bands of an input signal to determine whether reverberation characteristics are present. When reverberation is detected, the system may attenuate the reverberant frequency band to reduce or eliminate the reverberation....

20060115096 - Adaptive noise reduction method and device: A variable period pulse signal and a sampling clock are supplied to a counter 32 within an adaptive signal processor 30, where an input period is counted by the sampling clock and the counted value is supplied to a timing generator 34. From the timing pulse, a variable read-address generator...

20060115097 - Microphone system with directional response: Hearing aid with a microphone system for providing a directional response by generating a fixed forward pointing directivity pattern and a fixed backward pointing directivity pattern and where the forward and backward directivity pattern signals are mixed at a ratio, which ensures energy minimization of the output signal, and where...

20060115098 - Method and apparatus to reconstruct high-frequency components of an audio signal: A method and apparatus to reconstruct high-frequency components of an input audio signal. The apparatus includes a frequency inverter to invert the frequency spectrum of the input audio signal, a band pass filter which filters out the higher frequency components of the input audio signal, a converter which shifts the...

20060115099 - Cord bush and control box for microphone: The present invention provides a cord bush that makes it possible to reliably inhibit a liquid such as water from running along a cord, the length of which can be adjusted, into a control box through as well as a microphone control box including the cord bush. A first flock...

20060115100 - Parametric coding of spatial audio with cues based on transmitted channels: A binaural cue coding scheme in which cue codes are derived from the transmitted audio signal. In one embodiment, an encoder downmixes C input channels to generate E transmitted channels, where C>E>1. A decoder derives cue codes from the transmitted channels and uses those cue codes to synthesize playback channels....

20060115101 - Multiple amplifier synchronization system: The present invention allows multi-amplifier systems to be implemented, while avoiding the difficulties associated with current multi-amplifier systems. One amplifier is a “master”, which controls the settings a plurality of other amplifiers (the slaves). If an adjustment needs to be made, only the master needs to be adjusted. The amplifier...

20060115102 - Surface mountable transducer system: The present invention relates to a surface mountable acoustic transducer system, comprising one or more transducers, a processing circuit electrically connected to the one or more transducers, and contact points arranged on an exterior surface part of the transducer system. The contact points are adapted to establish electrical connections between...

20060115103 - Systems and methods for interference-suppression with directional sensing patterns: System (10) is disclosed including an acoustic sensor array (20) coupled to processor (42). System (10) processes inputs from array (20) to extract a desired acoustic signal through the suppression of interfering signals. The extraction/suppression is performed by modifying the array (20) inputs in the frequency domain with weights selected...

20060115104 - Method of manufacturing an active hearing device and fitting system: A method for manufacturing an active hearing device which is fitted towards the needs of an individual includes manufacturing an active hearing device with at least one adjustable transfer characteristic between an acoustic input signal and a mechanical output signal; categorizing an acoustic signal to be applied as a fitting...

20060115105 - Acoustically tailored hearing aid and method of manufacture: An apparatus and method for tailoring the audio frequency response of a hearing aid or other ear piece by altering the physical characteristics of the device to more accurately compensate for a user's specific hearing loss attributes. The device has a bore formed within its ear piece shell which provides...

20060115106 - Condenser microphone unit: The present invention provides a condenser microphone unit that enables stabilization of the conduction between an impedance converter (FET) and a rear pole plate constituting a condenser section. A condenser microphone unit 11 includes a rear pole plate 14 forming a condenser section 12 together with a diaphragm 13, an...

20060115107 - Inertial voice type coil actuator: The present invention provides an intertial-type voice actuator that includes a magnetic flux conductive material core with a continuous channel. The channel has antifringing groove. The actuator employs a radially polarized cylindrical magnet spaced in the channel to form a magnetic gap and a conductive coil positioned at least partially...