Patent ID: 11875804
Assignee: FRAUNHOFER GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 8:
9. An encoder, comprising:
an object-based encoding unit for encoding one or more audio object signals to acquire an encoded audio signal comprising the one or more audio object signals, and
an object loudness encoding unit for encoding loudness information on the audio object signals, wherein the loudness information depends on one or more of the audio object signals,
wherein the object-based encoding unit is configured to receive the audio object signals, wherein each of the audio object signals is assigned to exactly one of two or more groups, wherein each of the two or more groups comprises one or more of the audio object signals,
wherein the object-based encoding unit is configured to downmix the audio object signals, being comprised by the two or more groups, to acquire a downmix signal comprising one or more downmix audio channels as the encoded audio signal, wherein the number of the one or more downmix channels is smaller than the number of the audio object signals being comprised by the two or more groups,
wherein the object loudness encoding unit is assigned to receive one or more further by-pass audio object signals, wherein each of the one or more further by-pass audio object signals is assigned to a third group, wherein each of the one or more further by-pass audio object signals is not comprised by the first group and is not comprised by the second group, and
wherein the object loudness encoding unit is configured to determine a first loudness value, a second loudness value and a third loudness value of the loudness information, the first loudness value indicating a total loudness of the one or more audio object signals of the first group, the second loudness value indicating a total loudness of the one or more audio object signals of the second group, and the third loudness value indicating a total loudness of the one or more further by-pass audio object signals of the third group, or is configured to determine a first loudness value and a second loudness value of the loudness information, the first loudness value indicating a total loudness of the one or more audio object signals of the first group, and the second loudness value indicating a total loudness of the one or more audio object signals of the second group and of the one or more further by-pass audio object signals of the third group.