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arXiv 2201.06841eess.AScs.CLcs.SD

Human and Automatic Speech Recognition Performance on German Oral History Interviews

Fraunhofer Institute for Intelligent Analysis and Information Systems (IAIS)(弗劳恩霍夫智能分析与信息系统研究所);Haus der Geschichte der Bundesrepublik Deutschland Foundation (HdG)(德意志联邦共和国历史之家基金会);Autonomous Intelligent Systems (AIS), Computer Science Institute VI, Univ. of Bonn(波恩大学计算机科学第六研究所自主智能系统)

Michael Gref, Nike Matthiesen, Christoph Schmidt, Sven Behnke, Joachim Köhler

英文摘要:

Automatic speech recognition systems have accomplished remarkable improvements in transcription accuracy in recent years. On some domains, models now achieve near-human performance. However, transcription performance on oral history has not yet reached human accuracy. In the present work, we investigate how large this gap between human and machine transcription still is. For this purpose, we analyze and compare transcriptions of three humans on a new oral history data set. We estimate a human word error rate of 8.7% for recent German oral history interviews with clean acoustic conditions. For comparison with recent machine transcription accuracy, we present experiments on the adaptation of an acoustic model achieving near-human performance on broadcast speech. We investigate the influence of different adaptation data on robustness and generalization for clean and noisy oral history interviews. We optimize our acoustic models by 5 to 8% relative for this task and achieve 23.9% WER on noisy and 15.6% word error rate on clean oral history interviews.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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