APPARATUS AND METHOD FOR AUDIO CODING

An audio encoding apparatus comprises an audio receiver (201) that receives audio items representing an audio scene, and a metadata receiver (203) receives input presentation metadata of the audio items describing presentation constraints for rendering of the audio items. The presentation constraint...

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Bibliographische Detailangaben
Hauptverfasser:	DE BONT, FRANSISCUS, M., J, KOPPENS JEROEN G H, DILLEN PAULUS HENRICUS ANTONIUS
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ACOUSTICS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY MUSICAL INSTRUMENTS PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION SPEECH ANALYSIS OR SYNTHESIS SPEECH OR AUDIO CODING OR DECODING SPEECH OR VOICE PROCESSING SPEECH RECOGNITION
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Beschreibung
Zusammenfassung:	An audio encoding apparatus comprises an audio receiver (201) that receives audio items representing an audio scene, and a metadata receiver (203) receives input presentation metadata of the audio items describing presentation constraints for rendering of the audio items. The presentation constraints constrain rendering parameters that can be adjusted when rendering the audio item. An audio encoder (205) generates encoded audio data for an audio scene by encoding a plurality of audio items, where the encoding is adjusted in response to input presentation metadata. Metadata circuitry (207) generates output presentation metadata from the input presentation metadata. The output presentation metadata includes data for the encoded audio item that restricts the degree to which adjustable parameters rendered when rendering the encoded audio item can be adjusted. The output (209) generates an encoded audio data stream comprising the encoded audio data and the output presentation metadata. 一种音频编码装置包括接收表示音频场景的音频项目的音频接收