Inserts an Audio Track key at the given time in seconds. The track_idx must be the index of an Audio Track.
stream is the AudioStream resource to play. start_offset is the number of seconds cut off at the beginning of the audio stream, while end_offset is at the ending.
Inserts an Audio Track key at the given time in seconds. The track_idx must be the index of an Audio Track. stream is the AudioStream resource to play. start_offset is the number of seconds cut off at the beginning of the audio stream, while end_offset is at the ending.