CONCEPT FOR AUDIO ENCODING AND DECODING FOR AUDIO CHANNELS AND AUDIO OBJECTS

摘要

Audio encoder for encoding audio input data to obtain audio output data includes an input interface for receiving a plurality of audio channels, a plurality of audio objects and metadata related to one or more of the plurality of audio objects; a mixer for mixing the plurality of objects and the plurality of channels to obtain a plurality of pre-mixed channels, each pre-mixed channel including audio data of a channel and audio data of at least one object; a core encoder for core encoding core encoder input data; and a metadata compressor for compressing the metadata related to the one or more of the plurality of audio objects, wherein the audio encoder is configured to operate in at least one mode of the group of two modes.

主权项

1. Audio encoder for encoding audio input data to acquire audio output data comprising:
an input interface configured for receiving a plurality of audio channels, a plurality of audio objects and metadata related to one or more of the plurality of audio objects; a mixer configured for mixing the plurality of objects and the plurality of channels to acquire a plurality of pre-mixed channels, each pre-mixed channel comprising audio data of a channel and audio data of at least one object; a core encoder configured for core encoding core encoder input data; and a metadata compressor configured for compressing the metadata related to the one or more of the plurality of audio objects, wherein the audio encoder is configured to operate in both modes of a group of at least two modes comprising a first mode, in which the core encoder is configured to encode the plurality of audio channels and the plurality of audio objects received by the input interface as core encoder input data, and a second mode, in which the core encoder is configured for receiving, as the core encoder input data, the plurality of pre-mixed channels generated by the mixer and to encode the plurality of pre-mixed channels.