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Searching: audio signal





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Patent # Description
US-9,083,783 Detecting double talk in acoustic echo cancellation using zero-crossing rate
A method for acoustic echo cancellation in a communication device is provided that includes receiving a first near-end audio signal in the communication device,...
US-9,083,782 Dual beamform audio echo reduction
A telephonic device having a speakerphone function has a loudspeaker and a plurality of microphones. The plurality of microphones are coupled to a plurality of...
US-9,083,776 Echo mitigation in a conference call
In an example embodiment, an example method is provided for echo mitigation in a conference call. In this method, a test audio signal is transmitted to a...
US-9,083,443 Intelligent notification appliance circuit and system
An intelligent notification appliance circuit has a controller and one or more addressable notification appliances coupled with a single pair of wires. The...
US-9,083,298 Techniques for distortion reducing multi-band compressor with timbre preservation
Distortion reducing multi-band compressor with timbre preservation is provided. Timbre preservation is achieved by determining a time-varying threshold in each...
US-9,083,288 High level capable audio amplification circuit
The present invention relates to an audio amplification circuit with first and second signal channels which generate first and second digital audio signals with...
US-9,082,413 Electronic transaction authentication based on sound proximity
A computer program product comprises computer usable program code for receiving data describing a proposed electronic transaction between first and second...
US-9,082,411 Method to reduce artifacts in algorithms with fast-varying gain
A method and device reduce artifacts in an audio processing algorithm for applying a time and frequency dependent gain to an input audio signal. The method...
US-9,082,410 Audio processing apparatus, audio processing method, and image capturing apparatus
An audio processing apparatus includes a first microphone, a second microphone, and a masking unit configured to mask movement of air from outside of the...
US-9,082,399 Method and apparatus for processing an audio signal using window transitions for coding schemes
An apparatus for processing an audio signal and method thereof are disclosed. The present invention includes receiving, by an audio processing apparatus, an...
US-9,082,398 System and method for post excitation enhancement for low bit rate speech coding
In accordance with an embodiment, a method of decoding an audio/speech signal includes decoding an excitation signal based on an incoming audio/speech...
US-9,082,396 Audio signal synthesizer
The invention relates to an audio signal synthesizer, the audio signal synthesizer comprises a transformer for transforming the down-mix audio signal into...
US-9,082,395 Advanced stereo coding based on a combination of adaptively selectable left/right or mid/side stereo coding and...
The application relates to audio encoder and decoder systems. An embodiment of the encoder system comprises a downmix stage for generating a downmix signal and...
US-9,082,387 Noise burst adaptation of secondary path adaptive response in noise-canceling personal audio devices
A personal audio device, such as a wireless telephone, generates an anti-noise signal from an error microphone signal and injects the anti-noise signal into the...
US-9,078,111 Method for providing voice call using text data and electronic device thereof
A method for providing a voice call using text data and an electronic device thereof are provided. The method includes converting the detected text data into...
US-9,078,077 Estimation of synthetic audio prototypes with frequency-based input signal decomposition
An approach to forming output signals both permits flexible and temporally and/or frequency local processing of input signals while limiting or mitigating...
US-9,078,076 Sound system
Methods and systems for processing audio data, such as spatial audio data, in which one or more sound characteristics of a given component of a spatial audio...
US-9,078,066 Touch input surface speaker
Processing an audio signal is disclosed. A source audio signal to be rendered by a touch input medium is received. An indication of an event where the touch...
US-9,078,065 System and method for displaying sound as vibrations
There is provided a method and a system for presenting audio signals as vibrotactile stimuli to the body in accordance with a Model Human Cochlea (MHC). Audio...
US-9,078,064 Earphone assembly with moisture resistance
An acoustic system includes a receiver (or microphone), a tube, or a moisture resistant screen. The receiver is capable of outputting an audio signal, while the...
US-9,078,062 Driving of parametric loudspeakers
A parametric loudspeaker system comprises a pre-compensator (305) for generating a pre-compensated envelope signal by applying a pre-compensation to the input...
US-9,078,058 Applications for a two-way wireless speaker system
The two-way wireless speaker system of this invention increases sound fidelity by enabling speakers to acknowledge receipt of audio data packets. This provides...
US-9,078,057 Adaptive microphone beamforming
The present invention relates to adaptive beamforming in audio systems. More specifically, aspects of the invention relate to a method for adaptively estimating...
US-9,078,055 Localization of a wireless user equipment (UE) device based on single beep per channel signatures
A scheme for localizing a wireless user equipment (UE) device's relative position with respect to a spatial configuration based on audio signatures received via...
US-9,078,042 Apparatus and method for processing an interactive service
A method of processing an interactive service and an apparatus thereof are disclosed. The present invention includes receiving uncompressed audio content or...
US-9,078,018 Audio/video and data signal redistribution system
A system and method for routing an output signal comprising at least one channel carrying a selected program to the user selecting the selected program. Based...
US-9,077,936 Integrated IF SAW filter in baseband digital design for analog TV (or hybrid) tuner
A filter for processing a digital TV composite signal having a video component and an audio component includes a digital video filter and a digital audio...
US-9,077,853 System and method for a conference server architecture for low delay and distributed conferencing applications
Systems and methods for conducting a multi-endpoint video signal conference are provided. Conferencing endpoints are linked by pairs of a reliable and a less...
US-9,077,694 Agile network protocol for secure communications using secure domain names
A client device comprises: (a) a memory, (b) an application program, and (c) a signal processing configuration. The memory is configured and arranged to...
US-9,077,461 Streaming of digital data to a portable device
The present invention achieves wireless delivery of media streams to portable devices for providing media information related to a show or attraction for the...
US-9,077,435 Communication channel using logarithmic detector amplifier (LDA) demodulator
A method is provided for communicating signals at a low power level in an electromagnetic interference (EMI) environment. A first device transmits a modulated...
US-9,077,295 Class D amplification device
A controller 103 that conducts various controls corresponding to input information selects target voltage information and target dead time information...
US-9,076,459 Apparatus and method to classify sound to detect speech
Audio frames are classified as either speech, non-transient background noise, or transient noise events. Probabilities of speech or transient noise event, or...
US-9,076,458 System and method for controlling noise in real-time audio signals
A system for processing a digital audio signal that includes a plurality of samples is disclosed. The system comprises a magnitude determination module, a...
US-9,076,456 System and method for providing voice equalization
Systems and methods for providing voice equalization are provided. In exemplary embodiments, acoustic signals are received from both a near-end and a far-end...
US-9,076,455 Temporal interpolation of adjacent spectra
Embodiments of the present invention exploit redundancy of succeeding FFT spectra and use this redundancy for computing interpolated temporal supporting points....
US-9,076,452 Apparatus and method for generating audio signal having sound enhancement effect
An audio apparatus includes a decay pattern generator configured to generate a decay pattern to be applied in an early reflection region, and generate an audio...
US-9,076,450 Directed audio for speech recognition
Techniques are described for selecting audio from locations that are most likely to be sources of spoken commands or words. Directional audio signals are...
US-9,076,447 Acoustic activity detection apparatus and method
Streaming audio is received. The streaming audio includes a frame having plurality of samples. An energy estimate is obtained for the plurality of samples. The...
US-9,076,444 Method and apparatus for sinusoidal audio coding and method and apparatus for sinusoidal audio decoding
A method and apparatus for sinusoidal audio coding and decoding are provided. The method for sinusoidal audio coding includes performing sinusoidal analysis on...
US-9,076,440 Audio signal encoding device, method, and medium by correcting allowable error powers for a tonal frequency...
A disclosed encoding device converts an audio signal into frequency spectra, determines allowable error powers with respect to bands divided by the frequency of...
US-9,076,438 Audio processing method and apparatus by utilizing a partition domain spreading function table stored in three...
An audio processing method is disclosed. In the audio processing method, a modified discrete cosine transform (MDCT) algorithm is utilized to transform a...
US-9,076,437 Audio signal processing apparatus
An apparatus comprising at least one processor and at least one memory including computer program code the at least one memory and the computer program code...
US-9,076,433 Apparatus and method for generating a synthesis audio signal and for encoding an audio signal
An apparatus for generating a synthesis audio signal using a patching control signal has a first converter, a spectral domain patch generator, a high frequency...
US-9,076,432 Encoding apparatus, encoding method, and program
An encoding apparatus includes a noise detector configured to detect noise included in a certain band in accordance with an audio signal, a gain controller...
US-9,076,431 Filter architecture for an adaptive noise canceler in a personal audio device
A personal audio device, such as a wireless telephone, includes an adaptive noise canceling (ANC) circuit that generates an anti-noise signal from a reference...
US-9,076,427 Error-signal content controlled adaptation of secondary and leakage path models in noise-canceling personal...
A personal audio device, such as a wireless telephone, generates an anti-noise signal from a microphone signal and injects the anti-noise signal into the...
US-9,076,425 Apparatus and method for reducing digital noise of audio signal
Provided are an apparatus and method for reducing digital noise. The digital noise reducing apparatus includes: a clarified signal generator configured to...
US-9,075,697 Parallel digital filtering of an audio channel
An electronic audio apparatus is described that uses a digital audio filter in which a splitter separates an input frame of discrete time audio into different...
US-9,075,572 Media enhancement dock
Systems and methods are provided for enhancing the video and audio capabilities of an electronic device (102) using a media enhancement dock (150, 250)....
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