Audio track does not play audio when update mode set to manual

I am trying to implement a pause system for timelines so everything "holds" instead of stops evaluating. I am setting the time manually through playableDirector.time. This all works fine, except audio tracks no longer play at all.

If I attach this to my timeline GameObject:

Code (CSharp):

1.  
2. public class TimelineController : MonoBehaviour {
3.  
4.     public PlayableDirector timeline;
5.  
6.     public bool playing;
7.  
8.     // Use this for initialization
9.     void Start () {
10.         timeline = GetComponent<PlayableDirector>();
11.         playing = true;
12.     }
13.    
14.     // Update is called once per frame
15.     void Update () {
16.         timeline.time = timeline.time + Time.deltaTime;
17.         timeline.Evaluate();
18.     }
19.  
20.  
21. }
22.  

and hit play. I get the timeline playing forward, but no sound. If I change the PlayableDirector back to Update Method: Game Time , everything works.

Is there something I'm missing here?

 

The Pause Resume and Evaluate solution works perfectly for what I'm trying to do. I gathered that it has something to do with Audio using a different clock but that's as far as I could go.

I look forward to proper Pause/Hold, but this will do for now.

Thanks!

 

Hi,

I'm using 2018.2.13f1 and also experiencing no audio playing when using manual update mode for timelines.

Here's a snippet of the code that does the timeline updating (also has logic for looping and holding, since it appears the wrap mode is ALSO ignored in manual time update mode - another undocumented API issue IMO):
Code in Start method to set the timeline to manual update:

Code (CSharp):

1. director.timeUpdateMode = DirectorUpdateMode.Manual;

And then the code in my Update method that updates the playable:

Code (CSharp):

1.                     director.time += (deltaTime * timeScale);
2.  
3.                     switch (director.extrapolationMode)
4.                     {
5.                         case DirectorWrapMode.Hold:
6.                             if (director.time > director.duration)
7.                                 director.time = director.duration;
8.                             break;
9.                         case DirectorWrapMode.Loop:
10.                             director.time = (director.time % director.duration);
11.                             break;
12.                         default:
13.                             Debug.LogError(
14.                                 string.Format("Director '{0}' {1} must either be set to '{2}' or '{3}' (currently '{4}'), otherwise it'll never end",
15.                                 director.name, nameof(PlayableDirector.extrapolationMode), nameof(DirectorWrapMode.Hold), nameof(DirectorWrapMode.Loop), director.extrapolationMode));
16.                             break;
17.                     }
18.  
19.                     director.Evaluate();

Is this fixed in 2018.3 so that audio continues playing when you manually update timelines? at the very least, this limitation should be added to the documentation so that folks using manual mode know what they are getting themselves into...

 

@seant_unity thanks for the response. Is there any plans to support reduced-speed audio playback for manual mode?

if not, how would you suggest playing audio at a reduced speed when you slow down a timeline? Our use case is a freeze effect in an action RPG that slows characters down to a crawl and then freezes them