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Searching: audio signal





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Patent # Description
US-9,386,387 Audio measurement amplifier
A circuit for conditioning an acoustic transducer driving signal includes an inner feedback circuit having a test signal input for receiving a test signal, a...
US-9,386,385 Method and apparatus to evaluate audio equipment via filter banks for dynamic distortions and or differential...
A testing method or apparatus utilizes filter banks to measure time varying or dynamic harmonic distortion or intermodulation distortion from a device. With a...
US-9,386,374 Apparatus and method for keeping output loudness and quality of sound among different equalizer modes
An apparatus and method for keeping output loudness and quality of sound in different equalizer modes. The apparatus includes a gain setting unit configured to...
US-9,386,372 Embedded speaker protection for automotive audio power amplifier
A method of operating a speaker system including a speaker coupled to an amplifier, and a dedicated digital speaker protection circuit includes turning on the...
US-9,386,371 Psychoacoustic adaptive notch filtering
Improved systems and methods for psychoacoustic adaptive notch filtering are provided. By accounting for psychoacoustic properties of an audio signal as well as...
US-9,386,369 Audio signal processing apparatus and method of controlling the same
When a first noise and second noise to be generated after the first noise are generated within a predetermined period, a noise reduction unit is controlled so...
US-9,386,366 Active design of exhaust sounds
A sound generator system (1, 70), for a vehicle with internal combustion engine (15) and/or electric motor, has an electroacoustical transducer (11) and a...
US-9,386,364 Waterproof microphone device
This waterproof microphone device includes a plurality of microphones, a housing, and a plurality of air-impermeable cover members. The plurality of microphones...
US-9,386,363 Speaker apparatus suitable for use with a computer
A speaker apparatus suitable for use with a computer operable for communicating audio signals to the speaker apparatus. The speaker apparatus includes a housing...
US-9,386,191 Synchronisation of audio and video playback
A method of playing audio content to a viewer in synchronisation with a video content. The method comprises receiving and digitising an ultrasonic signal...
US-9,386,162 Systems and methods for reducing audio noise
Various embodiments of systems and methods for reducing audio noise are disclosed. One or more sound components such as noise and network tone can be detected...
US-9,386,123 Distributed audio playback and recording
Techniques are disclosed for providing distributed audio playback and recording functionality according to certain embodiments. In such embodiments one or more...
US-9,385,883 Daisy chain devices and systems for digital signal switching and distribution
The invention provides systems, devices, methods and software to daisy chain multiple individual transmitters, optionally nodes, optionally extenders, and...
US-9,385,779 Acoustic echo control for automated speaker tracking systems
A processing system can include a tracking microphone array; audio tracker circuitry connected to the tracking microphone array to track an audio source based...
US-9,385,676 System and method for dynamically mixing audio signals
A system and method for dynamically mixing audio signals may calculate a signal amplitude for each of two or more audio signals. The signal amplitude may be the...
US-9,384,754 Removal of audio noise
A system for removing noise from an audio signal is described. For example, noise caused by content playing in the background during a voice command or phone...
US-9,384,750 Oversampling in a combined transposer filterbank
The present invention relates to coding of audio signals, and in particular to high frequency reconstruction methods including a frequency domain harmonic...
US-9,384,749 Encoding device, decoding device, encoding method and decoding method
By copying to a high-frequency band portion (extension band) a low-frequency band portion in which peaking has been set to a sufficiently low state, this...
US-9,384,746 Systems and methods of energy-scaled signal processing
A method includes determining a first modeled high-band signal based on a low-band excitation signal of an audio signal, where the audio signal includes a...
US-9,384,745 Article of manufacture, system and computer-readable storage medium for processing audio signals
Embodiments of an article of manufacture, a system for processing audio signals and a computer-readable storage medium containing program instructions for...
US-9,384,744 Audio signal coding device and audio signal coding method
An audio signal coding device divides a frequency spectrum obtained from an input digital signal to a plurality of bands, scales and quantizes divided frequency...
US-9,384,742 Methods and apparatuses for encoding and decoding object-based audio signals
Provided are an audio encoding method and apparatus and an audio decoding method and apparatus in which audio signals can be encoded or decoded so that sound...
US-9,384,739 Apparatus and method for error concealment in low-delay unified speech and audio coding
An apparatus for generating spectral replacement values for an audio signal has a buffer unit for storing previous spectral values relating to a previously...
US-9,384,737 Method and device for adjusting sound levels of sources based on sound source priority
A system for generating one or more enhanced audio signals such that one or more sound levels corresponding with sounds received from one or more sources of...
US-9,384,726 Feedback microphones encoder modulators, signal generators, mixers, amplifiers, summing nodes
A noise-cancelling system includes headset for generating a feedback signal for noise-cancellation in response to sound externally generated from the headset....
US-9,384,723 Method of retrieving processing properties and audio processing system
Techniques for storing and retrieving processing properties for processing an audio signal in an audio processing system, such as, an audio mixing console are...
US-9,384,675 Simulator for skill-oriented training
A simulator for skill-oriented training is presented. The simulator includes a platform having a sensor and provides an immersive virtual training environment....
US-9,383,964 Independent game and chat volume control
Methods and systems are provided for independent audio volume control. For example, an audio component (e.g., implemented in an element of an audio setup) may...
US-9,383,963 Quantity adjusting apparatus
To realize a change in a volume that does not give a user a feeling of strangeness even when a great processing load is put on a volume determining unit. A...
US-9,380,527 Method for reducing the energy consumption in a wireless communication terminal and communication terminal...
The invention relates to a wireless communication terminal able to transmit and/or receive video, audio or data signals in a first and a second frequency band...
US-9,380,524 Enhanced call recording for dual-SIM dual-active wireless communication devices
A multi-Subscriber Identity Module (SIM) wireless communication device includes: a first communications unit; a second communications unit; a recording unit;...
US-9,380,400 Optimizing audio systems
A system with speakers in a listening environment is optimized acquiring data to determine characteristics of the acoustic field generated by the speakers. Test...
US-9,380,389 Multipath interference reduction
The invention provides an audio signal processing system in which a magnitude spectrum of a frequency domain audio signal is processed based on a measure of...
US-9,380,388 Channel crosstalk removal
Techniques for removing crosstalk from a system, e.g., an audio system, having first and second (e.g., left and right) channels. In an aspect, first and second...
US-9,380,385 Compressor based dynamic bass enhancement with EQ
Systems and methods for enhancing the low frequency response of a loudspeaker for relatively low input level audio signals and protect the loudspeaker for...
US-9,380,373 Gaming headset with programmable audio paths
A headset having game, chat and microphone audio signals is provided with a programmable signal processor for individually modifying the audio signals and a...
US-9,380,262 Mobile terminal and method for operating same
The present invention relates to a mobile terminal, and a method for operating the same. According to an embodiment of the present invention, a method for...
US-9,380,161 Computer-implemented system and method for user-controlled processing of audio signals
A computer-implemented system and method for user-controlled processing of audio signals is provided. An audio signal including a reference segment and a...
US-9,380,159 Method and system for informing a user that a call is no longer on hold
Methods and systems for detecting completion of hold time for a user on a call are provided herein. In some embodiments, a method for detecting completion of...
US-9,380,150 Methods and devices for automatic volume control of a far-end voice signal provided to a captioning...
Apparatuses and methods are disclosed for automatic volume control of an audio stream reproduced by a captioning communication service for use by a call...
US-9,380,035 Decoding of encrypted file
A method and system for decoding an encrypted file. A recipient computer: receives, from a sender computer, the encrypted file having a filename that includes...
US-9,379,900 Information mixer and system control for attention management
Systems and methods for controlling various aspects of ensemble experiences and system control for attention management are disclosed. In one embodiment, a...
US-9,379,777 Near field communication circuitry used for hearing aid compatibility
An apparatus including a coil antenna; and near field communication (NFC) circuitry connected to the coil antenna. The NFC circuitry is configured to create a...
US-9,379,688 Aircraft radio with improved standby performance
An aircraft radio comprises a receiver, an audio output, and a processing element. The receiver is tuned to a first radio frequency which provides a first audio...
US-9,378,753 Self-organized acoustic signal cancellation over a network
A system for self-organized acoustic signal cancellation over a network is disclosed. The system may transmit an acoustic sounding signal to an interfering...
US-9,378,752 Sound processing device, sound processing method, and sound processing program
A sound processing device includes a separation unit configured to separate at least a music signal and a speech signal from a recorded audio signal, a noise...
US-9,378,751 Method and system for digital gain processing in a hardware audio CODEC for audio transmission
In a hardware audio CODEC which processes audio signals from a plurality of inputs, voltage and/or power levels of the input audio signals may be adjusted such...
US-9,378,749 LPC residual signal encoding/decoding apparatus of modified discrete cosine transform (MDCT)-based unified...
Disclosed is an LPC residual signal encoding/decoding apparatus of an MDCT based unified voice and audio encoding device. The LPC residual signal encoding...
US-9,378,748 Reduced complexity converter SNR calculation
The present document relates to audio encoding/decoding. In particular, the present document relates to a method and system for reducing the complexity of a bit...
US-9,378,747 Method and apparatus for layout and format independent 3D audio reproduction
A method for encoding audio signals, for later reproduction in arbitrary three-dimensional loudspeaker layouts, based on the generation of an intermediate...
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