Audio Encoding and Decoding
An audio encoder ( 109 ) has a hierarchical encoding structure and generates a data stream comprising one or more audio channels as well as parametric audio encoding data. The encoder ( 109 ) comprises an encoding structure processor ( 305 ) which inserts decoder tree structure data into the data st...
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| creator | HOTHO GERARD HERMAN PURNHAGEN HEIKO KJORLING HANS MAGNUS KRISTOFER SCHILDBACH WOLFGANG HORICH HOLGER RODEN KARL JONAS SCHUIJERS ERIK GOSUINUS PETRUS |
| description | An audio encoder ( 109 ) has a hierarchical encoding structure and generates a data stream comprising one or more audio channels as well as parametric audio encoding data. The encoder ( 109 ) comprises an encoding structure processor ( 305 ) which inserts decoder tree structure data into the data stream. The decoder tree structure data comprises at least one data value indicative of a channel split characteristic for an audio channel at a hierarchical layer of the hierarchical decoder structure and may specifically specify the decoder tree structures to be applied by a decoder A decoder ( 115 ) comprises a receiver ( 401 ) which receives the data stream and a decoder structure processor ( 405 ) for generating the hierarchical decoder structure in response to the decoder tree structure data. A decode processor ( 403 ) then generates output audio channels from the data stream using the hierarchical decoder structure. |
| format | Patent |
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| subjects | ACOUSTICS MUSICAL INSTRUMENTS PHYSICS SPEECH ANALYSIS OR SYNTHESIS SPEECH OR AUDIO CODING OR DECODING SPEECH OR VOICE PROCESSING SPEECH RECOGNITION |
| title | Audio Encoding and Decoding |
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