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how do I move API generated caption?

I tried using the position argument for subtitles but for some reason, when I have the subtitle arguments, the caption disappears altogether.

Question About EU Server Availability for Real-Time Avatars

Hi HeyGen Team,

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Cost

Do I need an API subscription and a HeyGen subscription? If I do will I still get unlimited videos for the API?

Session timeout after 30 seconds

We have bought the pro plan and our sessions are getting disconnected after 30 seconds, we are using both :
activityIdleTimeout, and

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Quality of audio in real time streaming

I can't find any documentation on the output quality of the audio ( sample rate) in avatar real time streaming mode; What is it?

Weebhook: Payload structure for events photo_avatar_generation.success and .fail

I need the exact webhook payload structure for photo_avatar_generation.success and photo_avatar_generation.fail?
I couldn't find any examples in the docs. I need to know what fields are in event_data.
Would be super helpful to see a real example. Thanks!

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video off mode

In streaming avatar, is it possible to start an avatar without displaying the avatar screen (video off)?