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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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...