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Access Audio Track Volume

Discussion in 'Timeline' started by mutafikah, Jul 24, 2018.

  1. mutafikah

    mutafikah

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    I have an audio track on a timeline. I'd like to be able to change the volume of this track by code. I've tried accessing the volume of the audiosource which is attached to it, but this doesn't change the timeline's volume. Is there a way to access the volume of a timeline audio track?

    Thanks!
     
    mutafikah, Jul 24, 2018
    #1

  2. seant_unity

    seant_unity

    Unity Technologies

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    No, but it's something we are looking to add soon.
     
    seant_unity, Jul 24, 2018
    #2
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  3. FURKANKAHVECI

    FURKANKAHVECI

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    2019.1 ?
     
    FURKANKAHVECI, Apr 11, 2019
    #3

  4. seant_unity

    seant_unity

    Unity Technologies

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    Volume in 2019.1, animated volume in 2019.2.
     
    seant_unity, Apr 11, 2019
    #4
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  5. Wrymnn

    Wrymnn

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    I have taken look at AudioTrack, but still cannot find volume accessor/setter. Using Unity 2019.2.8
     
    Wrymnn, Oct 24, 2019
    #5

  6. ewanuno

    ewanuno

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    assign an Audiosource to the Audiotrack, then control the volume of that Audiosource, either directly or via a mixer.
     
    ewanuno, Oct 24, 2019
    #6

  7. seant_unity

    seant_unity

    Unity Technologies

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    The volume can be accessed from the inspector, or from the the curve editor. If you select a clip, you can edit the volume in the inspector (but it is not animated, except for using ease/blend in/out).

    upload_2019-10-24_8-17-30.png
     
    seant_unity, Oct 24, 2019
    #7

  8. Ilya_Krav

    Ilya_Krav

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    Is it added?
     
    Ilya_Krav, Jul 31, 2020
    #8

  9. seant_unity

    seant_unity

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    Yes, from 2019.1 if I recall correctly.
     
    seant_unity, Aug 3, 2020
    #9

  10. Ilya_Krav

    Ilya_Krav

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    Can you tell me how to use by code?
     
    Ilya_Krav, Aug 14, 2020
    #10

  11. seant_unity

    seant_unity

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    Unfortunately, the necessary fields don't seem to in the public API so it can't be used to set their value directly.

    However, you can set an animated value for them using the following:

    Code (CSharp):
    1. audioTrack.CreateCurves("nameOfAnimationClip");
    2. audioTrack.curves.SetCurve(string.Empty, typeof(AudioTrack), "volume", AnimationCurve.Linear(0,0,1,1));
    3. audioTrack.curves.SetCurve(string.Empty, typeof(AudioTrack), "stereoPan", AnimationCurve.Linear(0,-1,1,1));
    4. audioTrack.curves.SetCurve(string.Empty, typeof(AudioTrack), "spatialBlend", AnimationCurve.Linear(0,0,1,1));
     
    seant_unity, Aug 24, 2020
    #11