Patent ID: 11916982
Assignee: TENCENT AMERICA LLC
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method for signaling multiple audio mixing gains in a teleconference using Real-time Transport Control Protocol (RTCP) feedback, performed by at least one processor and comprising:
receiving an input audio stream from a 360-degree video stream, the input audio stream including mixing gains;
declaring an RTCP feedback rate, which indicates a frequency of a trigger of initiating an RTCP feedback and comprises a different bitrate than a streaming of the input audio stream, for receiving the mixing gains, based on an allocated bandwidth; and
signaling the mixing gains using the declared RTCP feedback rate, wherein
a receiver of the input audio stream indicates a capability of receiving the audio mixing gains using a Session Description Protocol (SDP) attribute: a=rtcp−fb: * audio-mixing-gain,
the receiver is configured to send event-based immediate feedback based on determining that events per interval are at least one of
less than or equal to a ratio of an RTCP allocated bandwidth to an average RTCP packet size, and
equal to an average number of events reported per time interval, and

the event-based immediate feedback is determined to not be triggered for intervals smaller than an interval equal to or less than a ratio of the average RTCP packet size to the RTCP allocated bandwidth.