All Resemble media now mirrored to Cloudflare R2

What's new

IndoxHub now mirrors every media asset Resemble produces — TTS audio, audio enhance/edit results, watermark output, and user uploads — to Cloudflare R2. Responses include an audio_url (a presigned R2 URL) plus an expires_at timestamp so clients know exactly when an asset will be deleted.

Per-asset retention

Asset type	Retention
TTS generated audio	7 days
Audio enhance / edit / watermark output	7 days
Voice design candidates	14 days
STT input / generic uploads	30 days
Voice-clone source recordings	PERMANENT
Built voice models	PERMANENT

Identity assets (voice clones, trained voices) are kept forever. Disposable derivatives expire on a short clock to control storage cost.

Marking voice-clone uploads as permanent

When uploading audio meant for cloning a voice, pass purpose=voice_clone in the multipart form to land the file under voice-recordings/ (no expiry):

curl https://api.indoxhub.com/api/v1/resemble/uploads \
  -H "Authorization: Bearer $INDOXHUB_API_KEY" \
  -F "[email protected]" \
  -F "purpose=voice_clone"

Other purposes: stt_input, watermark_input, audio_job_input. Default (no purpose) lands under uploads/ with 30-day retention.

Why R2

• Zero egress fees — large audio playback hits the bucket from end-user browsers; egress dominates the bill at scale.
• Per-user isolation — keys follow {prefix}{user_id}/{YYYY}/{MM}/{DD}/{HHMMSS}-{request_id}.{ext} so per-user GDPR delete is one command.
• Rollback safe — AWS S3 path stays in place; flip STORAGE_BACKEND=s3 to instantly revert.

What you should do

• Use the new audio_url field — it's a clean R2 presigned URL valid for 1 hour. The original Resemble URL is still in resemble_url as a fallback.
• Read expires_at — show users when their generated audio will disappear.
• Tag voice-clone uploads — pass purpose=voice_clone so we keep the source recording forever.