Multi-channel encoder

In a method of encoding input signals (CH1 to CH3; 400 to 450) in a multi-channel encoder (5; 15) to generate corresponding output data having down-mix output signals (610, 620) together with complementary parametric data (600), the method includes a first step of down-mixing input signals (CH1 to C...

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Bibliographische Detailangaben
Hauptverfasser:	DEN BRINKER ALBERTUS CORNELIS, HOTHO GERARD HERMAN, BREEBAART DIRK JEROEN, VERBITSKIY EVGENY ALEXANDROVITCH
Format:	Patent
Sprache:	eng
Schlagworte:	ACOUSTICS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY MULTIPLEX COMMUNICATION MUSICAL INSTRUMENTS PHYSICS SPEECH ANALYSIS OR SYNTHESIS SPEECH OR AUDIO CODING OR DECODING SPEECH OR VOICE PROCESSING SPEECH RECOGNITION STEREOPHONIC SYSTEMS
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Beschreibung
Zusammenfassung:	In a method of encoding input signals (CH1 to CH3; 400 to 450) in a multi-channel encoder (5; 15) to generate corresponding output data having down-mix output signals (610, 620) together with complementary parametric data (600), the method includes a first step of down-mixing input signals (CH1 to CH3; 400 to 450) to generate the corresponding down-mix output signals (610, 620), and a second step of processing the input signals (CH1 to CH3; 400 to 450) during down-mixing to generate the parametric data (600) complementary to the down-mix output signals (610, 620). Processing of the input signals (CH1 to CH3; 400 to 450) involves including information in the down-mix signals (610, 620) which is useable during subsequent decoding of the down-mix output signals (610, 620) and the parametric data (600) to determine at least some parameter data and thereby enabling representations of the input signals (CH1 to CH3; 400 to 450) to be subsequently regenerated.