| Patent application number | Description | Published |
|---|
| 20080201153 | Generation of Multi-Channel Audio Signals - A decoder ( | 08-21-2008 |
| 20080205658 | Audio Coding - A spatial decoder unit ( | 08-28-2008 |
| 20080243520 | AUDIO CODING - A method of encoding a multi-channel audio signal including at least a first signal component (LF), a second signal component (LR) and a third signal component (RF). The method comprises the steps of encoding the first and second signal components by a first parametric encoder ( | 10-02-2008 |
| 20080275904 | Method of Generating and Methods of Filtering a User Profile - A method of generating a user profile ( | 11-06-2008 |
| 20080281590 | Method of Deriving a Set of Features for an Audio Input Signal - The invention describes a method of deriving a set of features (S) of an audio input signal (M), which method comprises identifying a number of first-order features (f | 11-13-2008 |
| 20080281895 | Method and Device for Calculating a Similarity Metric Between a First Feature Vector and a Second Feature Vector - The method of calculating a similarity metric between a first feature vector of a first audio and/or video signal and a second feature vector of a second audio and/or video signal of the invention comprises the step of calculating a distance between the first feature vector and the second feature vector, both the first feature vector and the second feature vector comprising a feature value of a second dimension, wherein a weighting factor is used that gives a stronger weight to the first dimension than to the second dimension. The electronic device of the invention comprises electronic circuitry, which is operative to perform the method of the invention. The software of the invention makes a programmable device operative to perform the method of the invention. | 11-13-2008 |
| 20090034744 | AUDIO SIGNAL ENHANCEMENT | 02-05-2009 |
| 20090043591 | AUDIO ENCODING AND DECODING - An audio encoder comprises a multi-channel receiver ( | 02-12-2009 |
| 20090055194 | ENCODING AND DECODING OF MULTI-CHANNEL AUDIO SIGNALS - An encoding device ( | 02-26-2009 |
| 20090083040 | ENCODING AND DECODING A SET OF SIGNALS - An encoding device ( | 03-26-2009 |
| 20090287495 | SPATIAL AUDIO - In summary, this application describes a psycho-acoustically motivated, parametric description of the spatial attributes of multichannel audio signals. This parametric description allows strong bitrate reductions in audio coders, since only one monaural signal has to be transmitted, combined with (quantized) parameters which describe the spatial properties of the signal. The decoder can form the original amount of audio channels by applying the spatial parameters. For near-CD-quality stereo audio, a bitrate associated with these spatial parameters of 10 kbit/s or less seems sufficient to reproduce the correct spatial impression at the receiving end. | 11-19-2009 |
| 20100076774 | AUDIO DECODER - An audio decoder ( | 03-25-2010 |
| 20100153469 | ELECTRONIC DEVICE AND METHOD OF CREATING A SEQUENCE OF CONTENT ITEMS - The method of creating a sequence of content items of the invention comprises a first step of determining a second content item having a second value ( | 06-17-2010 |
| 20100191537 | BINAURAL OBJECT-ORIENTED AUDIO DECODER - A binaural object-oriented audio decoder comprising decoding means for decoding and rendering at least one audio object based on head-related transfer function parameters is proposed. Said decoding means are being arranged for positioning an audio object in a virtual three-dimensional space. Said head-related transfer function parameters are being based on an elevation parameter, an azimuth parameter, and a distance parameter. Said parameters are corresponding to the position of the audio object in the virtual three-dimensional space. The binaural object-oriented audio decoder is configured for receiving the head-related transfer function parameters, whereby said received head-related transfer function parameters are varying for the elevation parameter and the azimuth parameter only. Said binaural object-oriented audio decoder is characterized by distance processing means for modifying the received head-related transfer function parameters according to a received desired distance parameter. Said modified head-related transfer function parameters are being used to position the audio object in the three-dimensions at the desired distance. Said modification of the head-related transfer function parameters is based on a predetermined distance parameter for said received head-related function parameters. | 07-29-2010 |
| 20100215199 | METHOD FOR HEADPHONE REPRODUCTION, A HEADPHONE REPRODUCTION SYSTEM, A COMPUTER PROGRAM PRODUCT - A method for headphone reproduction of at least two input channel signals is proposed. Said method comprises for each pair of input channel signals from said at least two input channel signals the following steps. First, a common component, an estimated desired position corresponding to said common component, and two residual components corresponding to two input channel signals in said pair of input channel signals are determined. Said determining is being based on said pair of said input channel signals. Each of said residual components is derived from its corresponding input channel signal by subtracting a contribution of the common component. Said contribution is being related to the estimated desired position of the common component. Second, a main virtual source comprising said common component at the estimated desired position and two further virtual sources each comprising a respective one of said residual components at respective predetermined positions are synthesized. | 08-26-2010 |
| 20100246832 | METHOD AND APPARATUS FOR GENERATING A BINAURAL AUDIO SIGNAL - An apparatus for generating a binaural audio signal includes a de-multiplexer and decoder which receives audio data comprising an audio M-channel audio signal which is a downmix of an N-channel audio signal and spatial parameter data for upmixing the M-channel audio signal to the N-channel audio signal. A conversion processor converts spatial parameters of the spatial parameter data into first binaural parameters in response to at least one binaural perceptual transfer function. A matrix processor converts the M-channel audio signal into a first stereo signal in response to the first binaural parameters. A stereo filter generates the binaural audio signal by filtering the first stereo signal. The filter coefficients for the stereo filter are determined in response to the at least one binaural perceptual transfer function by a coefficient processor. The combination of parameter conversion/processing and filtering allows a high quality binaural signal to be generated with low complexity. | 09-30-2010 |
| 20110040398 | MULTI-CHANNEL ENCODER - In a method of encoding input signals (CH | 02-17-2011 |
| 20110058679 | Method, Device, Encoder Apparatus, Decoder Apparatus and Audio System - A method and a device are described for processing a stereo signal obtained from an encoder, which encodes an N-channel audio signal into spatial parameters (P) and a stereo down-mix comprising first and second stereo signals (L | 03-10-2011 |
| 20110082699 | SIGNAL CODING AND DECODING - An encoding device ( | 04-07-2011 |
| 20110082700 | SIGNAL CODING AND DECODING - An encoding device ( | 04-07-2011 |
| 20110106540 | STEREO CODING AND DECODING METHOD AND APPARATUS THEREOF - A method of encoding input signals (l, r) to generate encoded data ( | 05-05-2011 |
| 20110106545 | TEMPORAL AND SPATIAL SHAPING OF MULTI-CHANNEL AUDIO SIGNALS - A selected channel of a multi-channel signal which is represented by frames composed from sampling values having a high time resolution can be encoded with higher quality when a wave form parameter representation representing a wave form of an intermediate resolution representation of the selected channel is derived, the wave form parameter representation including a sequence of intermediate wave form parameters having a time resolution lower than the high time resolution of the sampling values and higher than a time resolution defined by a frame repetition rate. The wave form parameter representation with the intermediate resolution can be used to shape a reconstructed channel to retrieve a channel having a signal envelope close to that one of the selected original channel. The time scale on which the shaping is performed is shorter than the time scale of a framewise processing, thus enhancing the quality of the reconstructed channel. On the other hand, the shaping time scale is larger than the time scale of the sampling values, significantly reducing the amount of data needed by the wave form parameter representation. | 05-05-2011 |
| 20110166866 | SIGNAL SYNTHESIZING - A method of synthesizing a first (L) and a second (R) output signal from an input signal (x). The method comprises: filtering ( | 07-07-2011 |
