Preview voice
POST/api/v2/voices/{id}/preview sync
Get a short playable sample (`preview_url`) for any voice id from GET /api/v2/voices. Premium preset voices are listed with a null preview_url until first use; this generates and stores their sample (no credits charged), so later calls and GET /api/v2/voices return it directly.
curl -X POST "https://influencerstudio.com/api/v2/voices/{id}/preview" \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{}'Join Influencer Studio Today
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