Defines the audio source for the default (the 0th) media channel.
property AudioSource: TRVAudioSource;
In the simplest case, sound is read from TRVMicrophone component assigned to this property. No additional property settings are required.
But when reading sound from TRVCamReceiver, you need to specify additional properties, because this receiver can receive data from multiple senders, and each sender may send multiple media channels. In this case, in addition to assigning TRVCamReceiver to VideoSource, you need to specify:
•SourceGUID to specify the sender
•SourceAudioIndex to specify media channel of the sender specified in SourceGUID
See the scheme in the topic about SourceAudioIndex.