[Bug] Using IAudioPlayer.SetScheduledStartTime() or IAudioPlayer.SetDelay() doesn't fully setup the player before playing

[Zallist]

When using IAudioPlayer.SetScheduledStartTime() or IAudioPlayer.SetDelay() you're not guaranteed to fully setup or trigger everything that a normal play would, since AudioSource.PlayScheduled() runs on the DSP thread and can start playing music before the frame's Update cycle runs.

Missing things:

• Trigger any MusicPlayer decorators
• Assign an outputAudioMixerGroup (AudioTrack)
• Trigger SetPlayPosition() for trimmed audio
• Trigger OnStart() callbacks, or an initial OnUpdate()
• Whatever else happens AFTER yield return WaitForScheduledStartTime(); in PlayControl()

This is most apparent when playing a very short sound clip set to trigger between frames, with all output mixer groups muted. The sound can still be heard and has a null output mixer group.

Workaround for now: BroAudio.Play(sound).OnStart(p => p.SetScheduledStartTime(dspTime))

Since this causes all the normal setup to be done before triggering PlayScheduled.