Patent application number | Description | Published |
20100223061 | Method and Apparatus for Audio Coding - In accordance with an example embodiment of the present invention, there is provided an apparatus for encoding an audio signal in two or more encoding stages, the audio signal comprising a set of frequency components. The apparatus comprises a frequency component selection unit configured to select a number of frequency components from the set for encoding in a current encoding stage, the selected frequency components being components of the set that have not been encoded to a non-zero value in a preceding encoding stage; and an encoding unit configured to encode at least one of the selected frequency components to a non-zero value using a number of bits less than or equal to a predetermined number of bits allocated for the current encoding stage. | 09-02-2010 |
20100305727 | ENCODER - An encoder for encoding an audio signal comprising at least two channels, the encoder configured to generate an encoded signal comprising at least a first part, a second part and a third part, wherein the encoder is further configured to: generate the first part of the encoded signal dependent on at least one combination of first and second channels of the at least two channels; generate the second part of the encoded signal dependent on at least one difference between the first and second channels of the at least two channels; and generate the third part of the encoded signal dependent on at least one energy ratio of the first and second channels of the at least two channels. | 12-02-2010 |
20100324708 | ENCODER - An encoder for encoding an audio signal comprising at least two channels; the encoder being configured to generate an audio difference signal dependent on at least two channels of the audio signal, wherein the audio difference signal comprises at least two parts, encode at least one part of the audio difference signal to produce a second audio difference signal and generate at least one indicator, wherein each indicator identifies the at least one part of the audio difference signal. | 12-23-2010 |
20120121091 | AMBIENCE CODING AND DECODING FOR AUDIO APPLICATIONS - A method comprising determining at least one first parameter, wherein the first parameter is dependent on a difference between at least two audio signals; determining at least one second parameter, wherein the second parameter is dependent on at least one directional component of the at least two signals; and generating at least one ambience coefficient value dependent on the at least one first parameter and the at least one second parameter. | 05-17-2012 |
20120215788 | Data Processing - A method comprising: receiving sample data for a plurality of channels, wherein the sample data comprises a plurality of separate sample values and each sample value may be identified using at least a channel index that differentiates between channels and a sampling index that differentiates between sample values; performing energy compaction with respect to at least one of the channel indexes and the sampling indexes to create compacted sample values where each compacted sample value may be identified using at least a channel index that differentiates between channels and a sampling index that differentiates between sample values; and selecting some but not all of the compacted sample values for further program. | 08-23-2012 |
20120310396 | Processing of Multi-Device Audio Capture - It is inter alia disclosed to select, by a first apparatus ( | 12-06-2012 |
20130204631 | COMPRESSED SAMPLING AUDIO APPARATUS - Apparatus comprising at least one processor and at least one memory including computer code, the at least one memory and the computer code configured to with the at least one processor cause the apparatus to at least perform: transforming an audio signal into a sparse domain signal, the sparse domain signal representing the audio signal; transforming the sparse domain signal into a measurement domain signal; determining a sampling pattern dependent on the measurement domain signal; and measuring the measurement domain signal dependent on the sampling pattern. | 08-08-2013 |
20130226322 | AUDIO SCENE APPARATUS - Apparatus comprising at least one processor and at least one memory including computer code, the at least one memory and the computer code configured to with the at least one processor cause the apparatus to at least perform: determining whether a further apparatus is capturing an audio signal neighbouring the apparatus; determining a capture characteristic based on whether the further apparatus is capturing an audio signal neighbouring the apparatus; and capturing the audio signal based on the capture characteristic. | 08-29-2013 |
20140105406 | AUDIO SCENE MAPPING APPARATUS - An apparatus comprising: a receiver configured to receive at least one audio signal from a recording apparatus; the receiver further configured to receive at least one orientation indicator from the recording apparatus, each orientation indicator associated with one at least audio signal; a recording direction determiner configured to determine a recording orientation of the recording apparatus dependent on the at least one audio signal; a relative distance determiner configured to determining a relative distance of the recording apparatus from a sound source dependent on the at least one audio signal; and a relative position determiner configured to determining a relative position of the recording apparatus dependent on the orientation indicator and relative distance. | 04-17-2014 |
20150043756 | AUDIO SCENE MAPPING APPARATUS - An apparatus comprising: at least one processor and at least one memory including computer code for one or more programs, the at least one memory and the computer code configured to with the at least one processor cause the apparatus to at least perform: receiving at least two signals comprising at least two audio signals from at least two recording apparatus recording within an audio scene an audio source, wherein the first of the at least two audio signals is configured to represent a first frequency range and the second of the at least two audio signals is configured to represent a second frequency range; scaling the at least two audio signals; and combining the at least two audio signals to generate a combined audio signal representation of the audio source. | 02-12-2015 |
20150063070 | ESTIMATING DISTANCES BETWEEN DEVICES - A mobile recording device comprises means for detecting an audio signal emitted by the first device and means for measuring a strength of the audio signal. A server or the mobile comprises means for using the measured signal strength to estimate a distance between the first and second devices. A server comprises means for storing first and second collections of data sets, each of the data sets of the first collection comprising an emission time stamp, each of the data sets of the second collection comprising a reception time stamp and data indicative of a received signal strength; means for using emission time stamps and reception time stamps of the data sets to identify a data set of the first collection that corresponds to a data set of the second collection; and means for using the data indicative of the signal strength from the identified data set of the second collection to estimate the distance between devices that are sources of the identified data sets. | 03-05-2015 |
20150089051 | DETERMINING A TIME OFFSET - A method comprises storing primary time-stamped media and secondary time-stamped media provided by a first device; storing primary time-stamped media and secondary time-stamped media provided by a second device; and using the secondary time-5 stamped media from the first and second devices to determine a time offset between the primary media from the first and second devices. | 03-26-2015 |