- Professional Transcription
- Speech Recognition
Error rates among professionally trained transcribers are less than 1%. An untrained transcriber or crowdsourced captioning could have error rates as high as 5%. Speech recognition, depending on the technology used, will have error rates from 5% to 40%.
Captions with 99 to 100% accuracy have excellent intelligibility. Captions with accuracy between 95-98% have moderate intelligibility. Captions with accuracy between 90 and 95% have poor intelligibility. Intelligibility of captions with less than 90% accuracy is extremely poor.