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9025776 |
Decorrelating audio signals for stereophonic and surround sound using coded and maximum-length-class sequences
Methods and systems for processing an audio signal are provided. The method includes generating a pseudorandom sequence and generating at least one reciprocal of the pseudorandom sequence such... |
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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... |
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9014377 |
Multichannel surround format conversion and generalized upmix
An audio signal is processed in the frequency domain to convert an input signal format to an output signal format. That is, a multichannel audio signal intended for playback over a predefined... |
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9002035 |
Graphical audio signal control
Signal processing section of a terminal converts acquired audio signals of a plurality of channels into frequency spectra set, calculates sound image positions corresponding to individual... |
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8989394 |
Active delay method and a improved wireless binaural hearing device using the same method
Disclosed are an active delay method and an improved wireless binaural hearing device. The binaural hearing device includes: a first hearing device including a first microphone, an amplifier and a... |
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8971542 |
Systems and methods for speaker bar sound enhancement
A sound reproduction apparatus comprising a loudspeaker bar having a plurality of loudspeakers. A loudspeaker bar controller coupled to the loudspeaker bar for processing audio data for the... |
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8971541 |
Method and apparatus for multiplexing audio program channels from one or more received broadcast streams to provide a playlist style listening experience to users
A method and apparatus are provided for generating a personalized radio channel playlist by simultaneously buffering tracks from multiple received channels from one or more source streams and... |
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8958585 |
Sound image localization apparatus
Multiple independent sound images are formed by integrally performing uncorrelation processing and sound image localization processing on an input audio signal with signal processors that use... |
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8958584 |
Apparatus, method, and medium for removing crosstalk
An apparatus, method, and medium of removing crosstalk are provided. The apparatus for removing crosstalk in each of audio signals of a plurality of channels, includes: a position recognition unit... |
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8942980 |
Method of navigating in a sound content
A method of navigating in a sound content wherein at least one key word is stored in association with at least two positions representative of said key word in the sound content, and wherein the... |
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8929572 |
Method and apparatus for expanding listening sweet spot
A method and apparatus of expanding a listening sweet spot. A method of expanding a listening sweet spot with respect to signals output from speakers includes: obtaining an HRTF (head related... |
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8891774 |
Acoustic signal processing apparatus, processing method therefor, and program
The present invention relates to an acoustic signal processing apparatus that suppresses auditory noise caused in a difference signal generated by acoustic signals of a plurality of channels, a... |
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8891775 |
Method and encoder for processing a digital stereo audio signal
The invention discloses a method and an encoder for processing a digital audio stereo signal. A digital audio encoder for coding such audio signal comprises a predictive Temporal Noise Shaping... |
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8879754 |
Sound reproducing system with superimposed digital signal
A home use sound reproduction system for Hi-fi, with digital signal transfer from a playback unit via a control unit to one or more active loudspeakers, each including or arranged beside an... |
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8873762 |
System and method for efficient sound production using directional enhancement
A system and method for generating virtual microphone signals having a particular number and configuration for channel playback from an intermediate set of signals that were recorded in an initial... |
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8831230 |
Amplifier crosstalk cancellation technique
This document discusses apparatus and methods for configuring and providing crosstalk cancellation to maintain channel separation in a multi channel system. In an example, an amplifier circuit can... |
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8831231 |
Audio signal processing device and audio signal processing method
An audio signal processing device includes a processing unit for convoluting head-related transfer functions with audio signals of a plurality of channels, and the processing unit includes a... |
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8824688 |
Apparatus and method for generating audio output signals using object based metadata
An apparatus for generating at least one audio output signal representing a superposition of at least two different audio objects comprises a processor for processing an audio input signal to... |
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8804970 |
Low bitrate audio encoding/decoding scheme with common preprocessing
An audio encoder has a common preprocessing stage, an information sink based encoding branch such as spectral domain encoding branch, a information source based encoding branch such as an... |
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8793125 |
Method and device for decorrelation and upmixing of audio channels
A device (1) for converting a first number (M) of input audio channels into a second, larger number (N) of output audio channels comprises: decorrelation units (3) for decomposing the input audio... |
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8787584 |
Audio metrics for head-related transfer function (HRTF) selection or adaptation
A method includes detecting, via a first microphone coupled to a user's left ear, a sound, detecting, via a second microphone coupled to the user's right ear, the sound, determining a time... |
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8779962 |
Audio device switching with reduced pop and click
This document discusses, among other things, apparatus and methods including an analog-to-digital controller (ADC) configured to receive an enable signal and to provide an ADC output signal to... |
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RE44980 |
System and method for controlling states of a device
A system and method for automatically changing a state of a device coupled to a headphone device is provided. The system comprises a means for detecting if at least one earpiece of the headphone... |
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8750524 |
Audio signal processing device and audio signal processing method
When a correlation between an L channel and an R channel of a reproduction-target sound source is considerably high, virtual sound obtained from a reproduction signal is often more likely to be... |
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8737626 |
Audio signal decoding device and method of balance adjustment
Disclosed is an audio signal decoding device and a method of balance adjustment that reduces a fluctuation of a decoded signal orientation and maintains a stereo perception. An interchannel... |
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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... |
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8712058 |
Apparatus and method for encoding/decoding signal
An encoding method and apparatus and a decoding method and apparatus are provided. The decoding method includes extracting an arbitrary down-mix signal and compensation information necessary for... |
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8705747 |
Object-based 3-dimensional audio service system using preset audio scenes
Provided are an object-based three dimensional (3-D) audio service system using preset audio scenes and a method thereof. The system and the method are suggested for enabling a user to easily and... |
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8705779 |
Surround sound virtualization apparatus and method
A surround sound virtualization apparatus and method. The surround sound virtualization apparatus may include an audio decoder to perform head-related transfer function (HRTF) filtering, and a... |
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8699963 |
Mobile communication device with receiver speaker
An audio subsystem in a mobile communication device has a speaker. In one implementation, the audio subsystem has a higher-gain power amplifier, a lower-gain power amplifier, and a switching... |
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8693951 |
Wireless audio frequency playing apparatus and wireless playing system using the same
A wireless audio frequency playing apparatus and a wireless playing system using the same are provided. The wireless playing system includes a wireless remote controller and the wireless audio... |
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8693706 |
Pseudo bass generating apparatus
A pseudo bass generating apparatus includes a first 4th-order LPF, an absolute value circuit, a clip circuit, a multiplier, a first adder for subtracting an output signal of the multiplier from an... |
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8687829 |
Apparatus and method for multi-channel parameter transformation
A parameter transformer generates level parameters, indicating an energy relation between a first and a second audio channel of a multi-channel audio signal associated to a multi-channel... |
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8666081 |
Apparatus for processing a media signal and method thereof
A method for processing a media signal, comprising: receiving, by an audio processing apparatus, an audio signal including a first channel signal and a second channel signal; estimating center... |
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8666080 |
Method for processing a multi-channel audio signal for a binaural hearing apparatus and a corresponding hearing apparatus
Wearers of hearing apparatuses and in particular of hearing device systems having two speakers are to be able to enjoy the experience of spatial multi-channel reproduction. Provision is... |
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8638945 |
Apparatus and method for encoding/decoding signal
An encoding method and apparatus and a decoding method and apparatus are provided. The decoding method includes skipping extension information included in an input bitstream, extracting a... |
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8638946 |
Method and apparatus for creating spatialized sound
A method and apparatus for creating spatialized sound, including the operations of determining a spatial point in a spherical coordinate system, and applying an impulse response filter... |
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8625820 |
Amplifier circuit audio circuit and electronic device
An amplifier circuit which, includes a first input for receiving a first input signal and a second input for receiving a second input signal. A first amplifier section is connected to the first... |
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8625808 |
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 images can be localized at any desired... |
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8625811 |
Method and apparatus for encoding and decoding stereo signal and multi-channel signal
Provided are a method and apparatus for encoding and decoding a stereo signal or a multi-channel signal. According to the method and apparatus, a stereo signal or a multi-channel signal can be... |
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8619998 |
Spatial audio enhancement processing method and apparatus
The present invention describes techniques that can be used to provide novel methods of spatial audio rendering using adapted M-S matrix shuffler topologies. Such techniques include headphone and... |
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8620012 |
Apparatus and method for providing stereo effect in portable terminal
An apparatus and a method for providing a stereo effect when playing an audio file at a portable terminal are provided. The apparatus includes a component extractor for extracting a mono component... |
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8620011 |
Method, medium, and system synthesizing a stereo signal
A method, medium, and system generating a 3-dimensional (3D) stereo signal in a decoder by using a surround data stream. According to such a method, medium, and system, a head related transfer... |
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8620006 |
Center channel rendering
An audio system including a rendering processor for separately rendering a dialogue channel and a center music channel. The audio system may include circuitry for extracting one or both of the... |
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8615092 |
Sound processing device, correcting device, correcting method and recording medium
A sound processing device includes: a plurality of sound input units; a detecting unit for detecting a frequency component of each sound input to the plurality of sound signal unit, the each sound... |
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8611546 |
Method and apparatus for remotely switching noise reduction modes in a radio system
A radio configured to dynamically control cancellation of undesired signals in an audio stream. The radio includes a noise cancellation processor configured to receive an audio stream from a user... |
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8605914 |
Nonlinear filter for separation of center sounds in stereophonic audio
In accordance with some embodiments of the present invention there is provided a system, a method and a circuit for processing a stereo audio signal. According to some embodiments, the system for... |
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8594336 |
Sound image localization apparatus
A sound image localization apparatus comprises an L direct output section that produces an output signal by inputting an audio signal of a rear left audio input channel to a filter having a... |
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8588947 |
Apparatus for processing an audio signal and method thereof
An apparatus for processing an audio signal and method thereof are disclosed. The present invention includes an apparatus for a processing a signal, the apparatus comprising: a wire/wireless... |
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8588440 |
Sweet spot manipulation for a multi-channel signal
An apparatus, such as a decoder is arranged to modify the sweet-spot of a spatial M-channel audio signal by modifying spatial parameters. Specifically, a receiver (201) receives an N-channel audio... |