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WO/2010/005610A1 |
A system (10) is provided for locating and identifying an acoustic event. An acoustic sensor (20) having a pair of concentric opposing microphones (24, 26) at a fixed distance on a microphone axis (MA) is used to measure an acoustic inte...
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WO/2009/155255A1 |
A device to measure or estimate an output of a loudspeaker of an audio device and/or to measure ambient sounds. The output of the loudspeaker may be measured by a microphone placed in proximity to the loudspeaker; or estimated by measuri...
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WO/2009/148989A1 |
The patent discloses a method of verifying that a dialysis machine audio alarm has been sounded. The method senses a waveform of electric power, such as a waveform of the current or voltage that drives a speaker. When the speaker produce...
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WO/2009/143385A2 |
The method defines a user environment based on detected motion data and/or ambient noise data. The user environment is then used to apply an appropriate audio adjustment mode. In one embodiment, the user environment definition further in...
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WO/2009/141482A1 |
The invention relates to a device for capturing and managing ambient sounds, suitable for use in earphones used to listen to music or talk on the telephone, as well as for use in moving vehicles in which a musical appliance is being used...
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WO/2009/138947A1 |
The present invention provides a method and an apparatus for in situ test of transducers comprising sensing elements and associated conditioning preamplifiers. The invention makes it possible to evaluate the characteristics of the comple...
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WO/2009/134537A2 |
A detecting circuit measures at least one response characteristic of an output channel in an electro-acoustic transducer system. A memory stores a plurality of equalizations, each equalization corresponding to a known electro-acoustic tr...
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WO/2009/134127A1 |
A composite microphone comprises a flexible and stretchable substrate (22, 122, 250, 350, 450) with a grid of flexible and stretchable first and second conductors (31a,…,31e, 131a, 131g; 33a,…,33h, 133a, 133g). The first conductors (...
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WO/2009/130388A1 |
The specification and drawings present a new method, apparatus and software product for calibrating multiple microphones (e.g., a microphone array) to match their sensitivity using an ambient noise by creating and updating one or more ca...
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WO/2009/127568A1 |
The present invention relates to a condenser microphone assembly comprising an electro-acoustic transducer element comprising a diaphragm and a back plate, signal processing circuitry operatively connected to the transducer element so as...
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WO/2009/128566A1 |
A sound pickup apparatus includes a plurality of microphones (21a-21d, 22a-22d), and a controller (50) that receives signals from the plurality of microphones respectively. When the controller detects a failure in one of the plurality of...
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WO/2009/118101A2 |
The invention relates to a method for testing and calibrating electronic semiconductor components which convert sound into electrical signals and wherein semiconductor components (18) are acoustically irradiated in a sound chamber (10) w...
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WO/2009/113016A1 |
An apparatus for generating a drive signal for a sound transducer comprises an input processor (101) for receiving an input signal. A drive processor (103) is arranged to generate the drive signal from the input signal and a sound level ...
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WO/2009/104117A1 |
An audio-visual system comprises an optical sensor (OS) for sensing a property of light impinging on an area at or adjacent to a position of a sound transducer (LS) to supply a sense signal (SE) being dependent on the light property, and...
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WO/2009/097407A1 |
A mechanism is provided that monitors secondary microphone signals, in a multi-microphone mobile device, to warn the user if one or more secondary microphones are covered while the mobile device is in use. In one example, smoothly averag...
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WO/2009/087772A1 |
An audio signal from an audio signal source (2) is amplified by an amplifier (4) and supplied to a plurality of speakers (8) arranged in parallel to each other via a speaker line (6). A synthesizer (13) synthesizes a test signal containi...
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WO/2009/081190A1 |
There is provided a method of controlling a noise cancellation system, the noise cancellation system being for use in a device comprising a speaker for receiving a wanted signal and generating a sound signal therefrom, and the noise canc...
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WO/2007/044463A9 |
A method and system for performing automatic plug detection are disclosed (Fig. 11 ). When a plug is inserted into an audio jack, the plug may be detected (step 1105). Detection may occur at power up or upon insertion. When a plug is det...
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WO/2009/068276A1 |
The invention relates to a loudspeaker device comprising at least one loudspeaker (L1, L2) for the playback of audio signals and at least one microphone (M1, M2) for recording ambient noises. The loudspeaker device further comprises an a...
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WO/2009/066194A1 |
An apparatus includes a data processor coupled with a memory that stores a program executable by the data processor; an accessory interface readably coupled with the data processor and an amplifier having an output coupled to the accesso...
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WO/2009/059058A2 |
At least one exemplary embodiment is directed to a method of operating an audio device comprising: measuring sound pressure levels (SPLECM) for acoustic energy received by an ear canal microphone (ECM) during a time increment Δt; and ca...
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WO/2009/059051A2 |
At least one exemplary embodiment is directed to a method of operating an audio device comprising: calculating estimated sound pressure levels for drive signals directed to an ear canal receiver (ECR) during a time increment Δt; calcula...
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WO/2009/022196A1 |
A voltage supply circuitry (200) is capable of coupling to wired audio headset circuitry (210) and configurable to operate in a first mode, wherein the voltage supply circuitry (200) provides a voltage supply to the wired audio headset f...
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WO/2009/010055A1 |
The invention relates to a method of determining an impedance function IF of a load LS driven by an amplifier AM, said method comprising the steps of providing a digital audio signal DAS to said amplifier AM, measuring one of either a cu...
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WO/2009/010056A1 |
The invention relates to a method of determining a class of a load by - providing at least one classifier representing at least one class, - measuring and extracting at least one feature of a measured load, - determining the class of sai...
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WO/2009/010069A1 |
The invention relates to a method of determining a class of a load by - providing at least one classifier representing at least one class, - measuring and extracting at least one feature of a measured load while a signal is provided to s...
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WO/2009/006897A1 |
A noise dosimeter (xOO) for monitoring the exposure to noise of a user wearing a headset is described. The noise dosimeter includes a housing to be worn external to the ear of the user, an earpiece (xO1) for placement in or near an ear c...
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WO/2009/007322A2 |
In a sound reproduction device (1), an output terminal (2) to which a sound transducer (3) is attachable, an amplification device (200), and a control device (100) are provided. The amplification device (200) has an output point (210) wh...
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WO/2008/153589A2 |
A system for monitoring sound pressure levels at the ear includes an ambient sound microphone (ASM) for receiving ambient sounds and an ear canal microphone (ECM) for producing audio signals as a function of ambient sound received at the...
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WO/2008/153588A2 |
A system for monitoring sound pressure levels at the ear includes an ambient sound microphone for receiving ambient sounds and an ear canal microphone for producing audio signals as a function of ambient sound received at the ambient sou...
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WO/2008/131342A1 |
A method (500) for fitting a hearing instrument comprises placing the hearing instrument in situ (512, 804), receiving an audiogram of the user (502), determining a target gain for the hearing instrument as a function of the of the audio...
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WO/2008/125141A1 |
The invention relates to a device having an electro-acoustic converter, having a main emission direction (R) for acoustic waves and comprising a first part (1) and a second part (4), with the first part (1) being displaceable relative to...
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WO/2008/109683A1 |
An acoustic processing module receives an acoustic signal, and outputs an analog output signal. Microphone sensors are provided for generating a corresponding electrical signal in response to the acoustic signal. A signal processing circ...
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WO/2008/109491A1 |
An audiogram classification system is provided. The classification system includes categories for configuration, severity, site of lesion and/or symmetry of an audiogram. A set of rules can be provided for selecting the categories, where...
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WO/2008/103925A1 |
At least one exemplary embodiment is directed to a listening device (100) can include a receiver (102) and means for directing a sound produced by the receiver into an ear of the user, a microphone (104) and means for mounting the microp...
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WO/2008/094756A2 |
A system and method to detect and measure remediated speech intelligibility by evaluating received test audio transmitted across and received in a space or region of interest. Remediation of the test audio may include altering the rate, ...
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WO/2008/073953A2 |
Outputs of a laser and an inclinometer are used to figure adjustments to a sound producing device's position, where both the laser beam of the laser and an output from the inclinometer characterize a general direction of sound produced b...
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WO/2008/061779A1 |
The invention provides a receiver having an electro-acoustic transducer (W), a display unit (AE) and a control unit (SE) for controlling the display unit (AE) on the basis of the signal characteristics of the audio signal.
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WO/2008/056285A1 |
A method of determining the harmonic and anharmonic portions of a response signal (RS) of a device (2), e.g. an electro-acoustic or electric device, comprises the steps of supplying an input signal (IS) to the device (2) causing the devi...
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WO/2008/055238A2 |
A method for performance measurement and optimization of sound systems using electroacoustic measurements and a sliding band integration curve. Nearfield and spatially and temporally averaged broadband farfield responses are measured, av...
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WO/2008/048413A2 |
A low-cost, real-time solution is presented for compensating memoryless non-linear distortion in an audio transducer (154) The playback audio system estimates signal amplitude and velocity, looks up a scale factor from a look¬ up table ...
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WO/2008/036992A2 |
Disclosed are a method and a device for monitoring loudspeaker lines. In said method, a least one alternating current signal having a predefined frequency is fed to a loudspeaker line, the voltage and current are measured, and the input ...
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WO/2008/033450A2 |
An audio system includes a general-purpose computer in the audio signal path to provide, or to enhance, pre-amplification functions. In one embodiment, in response to audio signals from a pre-amplifier, a programmable multimedia controll...
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WO2008010852A9 |
A composition for treating hearing loss includes components that function through different biological mechanisms to provide an additive effect that is equal to or greater than a sum of the effect of the individual components. The compos...
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WO/2008/017684A1 |
A circuit for correcting the output of an audio level meter comprises input means for generating the square or the absolute value of an input signal, a low pass filter having a predetermined attack time (τ a) and release time (τ r), an...
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WO/2008/016531A2 |
Neural networks provide efficient, robust and precise filtering techniques for compensating linear and non-linear distortion of an audio transducer such as a speaker, amplified broadcast antenna or perhaps a microphone. These techniques ...
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WO/2008/006952A2 |
The invention relates to a method of diagnosing the operating state, in situ, of a sound system comprising at least one loudspeaker suitable for being connected to an audio player and arranged in an at least partially closed space, chara...
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WO/2008/005702A2 |
A method (500) of estimating an angle θ of arrival of an audio signal (115) at an audio detector (101) includes (a) detecting the signal at multiple sensors (105, 107); (b) forming (501) a frequency domain representation of each detecte...
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WO/2008/004541A1 |
A loudspeaker output correcting device operable under control of control means (CPU), and comprising (i) a first loudspeaker (SP1) for outputting a first test signal, (ii) a second loudspeaker (SP2) for outputting a second sound signal i...
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WO/2007/135581A2 |
A device (100) for processing audio data, wherein the device (100) comprises a plurality of microphones (101 to 104) each adapted to detect audio data (114 to 117), a plurality of speakers (105 to 108) each adapted to emit acoustic waves...
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