This is not an effect from a resource pack. If this is a duplicate, I'm sorry. I can't look through 5+ pages of posts.
https://www.youtube.com/watch?v=Cwey-SM3c4w&feature=youtu.be
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duplicates 1
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The sound issue is being tracked in MCPE-73220.
and the hair is WAI per MC-177101
The hair matches Java. Sound does not.