codingMode property
Mono (Audio Description), Mono, Stereo, or 5.1 channel layout. Valid values depend on rate control mode and profile. "1.0 - Audio Description (Receiver Mix)" setting receives a stereo description plus control track and emits a mono AAC encode of the description track, with control data emitted in the PES header as per ETSI TS 101 154 Annex E.
Implementation
final AacCodingMode? codingMode;