Matches 1 - 50 out of 314 1 2 3 4 5 6 7 >

AcclaimIP-ad

Match Document Document Title
9025775 Apparatus and method for adjusting spatial cue information of a multichannel audio signal  
An apparatus for enhancing a multichannel audio signal comprising at least two channels configured to: estimate a value representing a direction of arrival associated with a first audio signal...
9020171 Method for control of adaptation of feedback suppression in a hearing aid, and a hearing aid  
A method for controlling adaptation of a feedback suppression filter in a hearing aid comprises the step of suspending the adaptation of the feedback suppression filter when the level of a hearing...
9014397 Signal processing device and signal processing method  
A signal processing device includes: a detection unit generating a digital detection signal corresponding to motion of a diaphragm of a speaker to output the digital detection signal; a gain...
8995673 Audio power management system  
An audio power management system manages operation of audio devices in an audio system. The audio power management system includes a parameter computer, a threshold comparator and a limiter. Audio...
8971550 ***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST***
Signal processing device and signal processing method
 
A signal processing device includes: a detection unit generating a digital detection signal corresponding to motion of a diaphragm of a speaker to output the digital detection signal; a gain...
8964999 Audio reproduction device and audio reproduction method  
A method, apparatus, and computer-readable storage medium for processing a sound signal is provided. The method includes receiving first reference data associated with a positional relationship...
8953818 Spectral band substitution to avoid howls and sub-oscillation  
A listening device for processing an input sound to an output sound, includes an input transducer for converting an input sound to an electric input signal, an output transducer for converting a...
8942381 Control of a loudspeaker output  
A method of controlling a loudspeaker output comprises deriving an admittance function over time from the voice coil voltage and current. In combination with a delta function, the force factor of...
8929565 Output phase modulation entrainment containment for digital filters  
Method and apparatus for entrainment containment in digital filters using output phase modulation. Phase change is gradually introduced into the acoustic feedback canceller loop to avoid...
8903108 Near-field null and beamforming  
Devices and methods are disclosed that allow for selective acoustic near-field nulls for microphone arrays. One embodiment may take the form of an electronic device including a speaker and a...
8891786 Selective notch filtering for howling suppression  
Systems, methods, and other embodiments associated with selective notch filtering for howling suppression are described. According to one embodiment, an apparatus includes a howling detector that...
8873764 Acoustic echo suppression unit and conferencing front-end  
An acoustic echo suppression unit according to an embodiment of the present invention includes and input interface for extracting a downmix signal from an input signal, the input signal including...
8842846 Method and apparatus for polarity detection of loudspeaker  
A method and apparatus for polarity detection. The method includes applying a band-pass filter to an impulse response of a loudspeaker, applying an exponential weighting to the band-pass filtered...
8837748 Method and apparatus for receiving and playing a signal in a radio receiver  
A method and apparatus for receiving and playing a signal in a radio receiver to suppress microphonic feedback are provided by alternately pitch shifting a received audio signal. The pitch of the...
8831934 Speech enhancement method and system  
A method of speech enhancement in a room (10) includes the steps of capturing audio signals from a speaker's voice by a microphone (12), estimating an ambient noise level in the room from the...
8824703 Amplifier circuit  
There is provided an audio amplifier circuit (200), comprising: an input, for receiving an input signal; an amplifier (205) for receiving a modified input signal and outputting an amplified...
8798274 Acoustic apparatus, acoustic adjustment method and program  
An acoustic apparatus which outputs test signals from a plurality of speakers configuring a multichannel reproduction system and adjusts acoustic characteristics by picking up response signals...
8798281 Control of a loudspeaker output  
A method of modeling the frequency-dependent input-voltage-to-excursion transfer function of a loudspeaker, comprises, for a plurality of measurement frequencies, measuring a voltage and current...
8761408 Signal processing apparatus and signal processing method  
A signal processing apparatus includes: one or more detection means for detecting movement of a diaphragm of a speaker in correspondence with feedback methods that are different feedback methods;...
8755538 Tuning sound feed-back device  
Disclosed is a tuning sound (TS) feedback apparatus. The tuning sound (TS) feedback apparatus includes: a TS pick-up casing which is disposed and fixed inside or near the hearing organ of a sound...
8750525 Method to maximize loudspeaker sound pressure level with a high peak to average power ratio audio source  
A system is provided to protect a loudspeaker (144) by controlling a level of an applied audio signal. A control signal is generated by applying an input audio signal (115) to the collective...
8731207 Apparatus and method for computing control information for an echo suppression filter and apparatus and method for computing a delay value  
An embodiment of an apparatus for computing control information for a suppression filter for filtering a second audio signal to suppress an echo based on a first audio signal includes a computer...
8681997 Adaptive beamforming for audio and data applications  
A system and method for performing efficient directed sound and/or data to a user utilizing position information. Various aspects may, for example, comprise determining position associated with...
8675882 Sound signal processing device and method  
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...
8675883 Apparatus and associated methodology for suppressing an acoustic echo  
A new acoustic echo suppressor and method for acoustic echo suppression is described herein. Exemplary embodiments of the acoustic echo suppressor use one linear regression model for each subband....
8670571 Frequency control based on device properties  
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...
8666091 Method for reducing a disturbance in an input signal caused by an output signal in a multi-port connector, multi-port connector, and mobile device  
A method for reducing a disturbance in an input signal caused by an output signal in a multi-port connector, a multi-port connector circuit for reducing a disturbance in an input signal caused by...
8660272 Parameter setting method and audio apparatus  
A method of setting a parameter for an audio apparatus including a delay processing unit which applies a delaying process and an amplifying process on an input audio signal in accordance with the...
8660281 Method and system for a multi-microphone noise reduction  
A method for a multi microphone noise reduction in a complex noisy environment is proposed. A left and a right noise power spectral density for a left and a right noise input frame is estimated...
8634564 Signal processing device and method, and a program  
A signal processing device includes: a sound adjustment amount calculation unit which calculates a sound adjustment amount for adjusting sound characteristics of each channel to a predetermined...
8634576 Output phase modulation entrainment containment for digital filters  
Method and apparatus for entrainment containment in digital filters using output phase modulation. Phase change is gradually introduced into the acoustic feedback canceller loop to avoid...
8630426 Howling suppression using echo cancellation  
A method for reducing howling in a communication system containing collocated mobile devices is presented. In a transmitter, an audio signal is received at a microphone. Acoustic feedback is...
8594342 Transducer device including feedback circuit  
A transducer device includes an acoustic transducer, a parameter extractor and a feedback circuit. The parameter extractor is configured to extract an operating parameter from the acoustic...
8588431 Electrical system for a speaker and its control  
An electrical apparatus includes a frame, a speaker connected to the frame, a digital signal processor in communication with the speaker to receive audio data and control data to control the...
8571225 Method and circuit for testing an audio high-frequency loudspeaker being part of a loudspeaker system  
The present invention relates to a method and a circuit for testing a tweeter, said tweeter being part of a loudspeaker system, wherein the method includes the steps of: applying a high-frequency...
8571226 Automatic polarity adaptation for ambient noise cancellation  
A sound reproducing device has a loudspeaker arranged to produce sound from an audio signal provided by an audio signal source. A microphone is positioned to pick up ambient noise and generate a...
8571227 Noise cancellation earphone  
An active noise cancellation earphone (1) has an acoustic path including a cavity (36) and a pipe (20) leading to the auditory canal (40) which are arranged to form an oscillator in use which has...
8565441 Method and apparatus for reducing resonance of loudspeaker  
A method and apparatus for reducing resonance of a loudspeaker by using a model derived from a software simulated loudspeaker are provided. The method includes generating a model to determine...
8553899 Output phase modulation entrainment containment for digital filters  
Method and apparatus for entrainment containment in digital filters using output phase modulation. Phase change is gradually introduced into the acoustic feedback canceller loop to avoid...
8538040 Drivers and methods for driving a load  
Embodiments of the present invention provide methods and devices for controlling a command signal applied to a load. In embodiments of the invention, current through and voltage across a load are...
8509450 Dynamic audibility enhancement  
A method of enhancing an audio signal includes the steps of: a) receiving a primary audio input signal, b) receiving a detected audio signal which comprises: A) an echo component derived from...
8483398 Methods and systems for reducing acoustic echoes in multichannel communication systems by reducing the dimensionality of the space of impulse responses  
Various embodiments of the present invention are directed to adaptive methods for reducing acoustic echoes in multichannel audio communication systems. Acoustic echo cancellation methods determine...
8483403 ***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST***
System and method for directionally radiating sound
 
An audio system for a vehicle has at least one source of audio signals. A respective directional loudspeaker array is mounted at each seat position and coupled to the at least one source. The at...
8477976 Method for the detection of whistling in an audio system  
A method for detecting whistling in an audio system includes determining an average frequency of an input signal of the audio system, sampling the input signal in consecutive blocks of at least...
8477952 Audio system with feedback detection means  
The invention concerns in a first aspect an audio system comprising a microphone, audio signal processing means, an output transducer and means for detecting a possible feedback tone and the...
8452034 Entrainment avoidance with a gradient adaptive lattice filter  
Method and apparatus for signal processing an input signal in a hearing assistance device to avoid entrainment, the hearing assistance device including a receiver and a microphone, the system...
8428278 Improvements to systems for acoustic diffusion  
Described is a unit for amplifying and processing audio signals for driving an electro-acoustic transducer (D), comprising: an input for audio signals; a processor for audio signals (107); an...
8401207 Motional feedback system  
An audio amplifier is operated in an audio system with optimized source impedance to minimize distortion in a loudspeaker that is paired with the audio amplifier. The audio amplifier provides an...
8396233 Beam forming in spatialized audio sound systems using distributed array filters  
A system includes multiple speakers arranged in a speaker array configuration. The system also includes one or more filters configured to filter audio signals and generate filtered audio signals....
8345886 Method and apparatus for detecting malfunctioning speaker  
A method and apparatus for detecting a malfunctioning speaker are provided. The apparatus detects a speaker abnormality by identifying the state of the speaker when turning the power on or off,...
Matches 1 - 50 out of 314 1 2 3 4 5 6 7 >