Unreal: Audio > Sound Waves

since: 2016/07/05
update: 2016/07/05
reference:
1. Unreal Engine 4 Documentation | Unreal Engine

A.  新增專案:
     1. New Project > Blueprint > Blank:
        > Desktop / Console  > Maximum Quality > No Starter Content
        > Folder ... > Name ... > Create Project

   2. Content Browser:
        > Add New > Add Feature or Content Pack...

   3. Content Packs:
       > Starter Content > Add to Project

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B. AmbientSound Actor
    1. Content > StarterContent > Audio:
        > 將 sound wav (or sound cue)拖拉到場景裡, 會產生一個 AmbientSound Actor

    2. 屬性

    3. 屬性(續)

    4. 雙擊 sound wav (or sound cue) 進入 AmbientSound Editor     屬性:

    屬性(續):

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C. Trigger Volume
    1. Add a Trigger Volume & Open Level Blueprint:

    2. (Trigger Volume) Add On Actor Begin Overlap:

    
     > 結果:

    3. Play Sound at Location:

    4. Create a Reference to TriggerVolume

   
   > 結果:

    5. TriggerVolume > GetActorLocation 

    6. 回到 Level Editor:
        > 取消勾選: Auto Activate (才不會一進入關卡就播放音效)

    7. 結果: 進入關卡碰觸到 TriggerVolume: