Transcription accuracy vs. transcription quality: why the gap matters

The text discusses the limitations of using Word Error Rate (WER) as the sole measure of transcription quality in speech-to-text systems, pointing out that while WER quantifies the accuracy of word transcription, it fails to account for factors that affect the perceived quality, such as speaker mislabeling, formatting issues, and entity errors. These discrepancies create a gap between the system's technical accuracy and users' perception of accuracy, which is critical as it influences trust and user satisfaction. The article highlights the importance of addressing perceived quality by focusing on elements like speaker diarization, audio tag management, and real-time corrections, which can significantly impact user experience even if they do not affect WER. It suggests that the industry's future lies in enhancing perceived quality through newer metrics such as Semantic WER and Missed Entity Rate, which consider meaning preservation and entity-specific accuracy, thereby aligning more closely with user expectations and experiences.