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High-precision medical speech recognition through synthetic data and semantic correction: UNITED-MEDASR

24 Nov 2024arXiv:2412.00055archive 2025-07-28

Sourav Banerjee, Ayushi Agarwal, Promila Ghosh

Automatic Speech Recognition (ASR) systems in the clinical domain face significant challenges, notably the need to recognise specialised medical vocabulary accurately and meet stringent precision requirements. We introduce United-MedASR, a novel architecture that addresses these challenges by integrating synthetic data generation, precision ASR fine-tuning, and advanced semantic enhancement techniques. United-MedASR constructs a specialised medical vocabulary by synthesising data from authoritative sources such as ICD-10 (International Classification of Diseases, 10th Revision), MIMS (Monthly Index of Medical Specialties), and FDA databases. This enriched vocabulary helps finetune the Whisper ASR model to better cater to clinical needs. To enhance processing speed, we incorporate Faster Whisper, ensuring streamlined and high-speed ASR performance. Additionally, we employ a customised BART-based semantic enhancer to handle intricate medical terminology, thereby increasing accuracy efficiently. Our layered approach establishes new benchmarks in ASR performance, achieving a Word Error Rate (WER) of 0.985% on LibriSpeech test-clean, 0.26% on Europarl-ASR EN Guest-test, and demonstrating robust performance on Tedlium (0.29% WER) and FLEURS (0.336% WER). Furthermore, we present an adaptable architecture that can be replicated across different domains, making it a versatile solution for domain-specific ASR systems.

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Tasks

Automatic Speech RecognitionAutomatic Speech Recognition (ASR)Speech RecognitionSynthetic Data Generationspeech-recognition

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United-Syn-Med

Results from the paper archive 2025-07-28

TaskDatasetModelMetricValueRank at snapshotLeaderboardReport
Speech Recognition Europarl-ASR EN Guest-test United-MedASR (764M) WER 0.26 #1 of 3 Archive leaderboard report
Speech Recognition LibriSpeech test-clean United Med ASR Word Error Rate (WER) 0.985 #1 of 64 Archive leaderboard report
Speech Recognition Tedlium United-MedASR (764M) Word Error Rate (WER) 0.29 #1 of 4 Archive leaderboard report

Ranks are positions in the archive's leaderboards as they stood at the 2025-07-28 snapshot. Results published since then are not among these rows, so a rank here is not a current standing.

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