No sound in video apps.

[Hooch]

Hello.
I have no sound in video apps.
I can listen to music, I have sound in all games,
I can hear keyboard clicks and notification sound.

Only video sound is missing.
I tried 4 different apps. I tested with video I watched with sound last night.
My device is not muted. I already tried resetting (10s Home and power) and it did t work.

Can you help me?

 

[Tahmidul]

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