Use this endpoint when a Cartesia voice does not provide a direct preview URL in search results.
Response
Returns binary audio content (audio/*) for immediate playback.
Audio MIME type returned by Cartesia preview media.
Public cache header for preview media (public, max-age=3600).
HTTP/1.1 200 OK
Content-Type: audio/mpeg
Cache-Control: public, max-age=3600
[binary audio data]
If a voice has no preview sample, this endpoint returns 404.