What the cost ranges are based on
**Automated ASR**: industry-published rates from Google Cloud Speech-to-Text, AWS Transcribe, Azure Speech, and similar APIs cluster around $0.02-0.04 per minute, or $1.20-$2.40 per hour. The calculator uses $1.50/hour as a midpoint estimate. Captioning platforms (including EventRecast) bundle these underlying API costs with their own infrastructure and charge above the raw ASR rate; this calculator estimates the underlying delivery cost, not the platform markup.
**Human captioners (CART)**: rates published by NCRA-affiliated agencies and the broader stenography market typically run $2-3 per minute or $120-$180 per hour. The calculator uses $150/hour as a midpoint.
**Hybrid**: assumes automated for 80% of content with human upgrades for 20% (keynote sessions, public-facing high-stakes content). Cost is roughly 0.8 × automated + 0.2 × human.
**Translation multiplier**: each additional language multiplies the base captioning cost by ~1.3 for automated (translation runs as a follow-on pass on automated source captions, with ASR-equivalent compute). For human captioners, additional languages typically require additional captioners — closer to a 1.7-2.0× multiplier per language.