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Multitask Learning for Grapheme-to-Phoneme Conversion of Anglicisms in German Speech Recognition ...
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Improving Grapheme-to-Phoneme Conversion for Anglicisms in German Speech Recognition
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In: Fraunhofer IAIS (2021)
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Using Automatic Speech Recognition in Spoken Corpus Curation
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In: Fraunhofer IAIS (2020)
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Abstract:
The newest generation of speech technology caused a huge increase of audio-visual data nowadays being enhanced with orthographic transcripts such as in automatic subtitling in online platforms. Research data centers and archives contain a range of new and historical data, which are currently only partially transcribed and therefore only partially accessible for systematic querying. Automatic Speech Recognition (ASR) is one option of making that data accessible. This paper tests the usability of a state-of-the-art ASR-System on a historical (from the 1960s), but regionally balanced corpus of spoken German, and a relatively new corpus (from 2012) recorded in a narrow area. We observed a regional bias of the ASR-System with higher recognition scores for the north of Germany vs. lower scores f or the south. A detailed analysis of the narrow region data revealed -- despite relatively high ASR-confidence -- some specific word errors due to a lack of regional adaptation. These findings need to be considered in decisions on further data processing and the curation of corpora, e.g. correcting transcripts or transcribing from scratch. Such geography-dependent analyses can also have the potential for ASR-development to make targeted data selection for training/adaptation and to increase the sensitivity towards varieties of pluricentric languages.
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Keyword:
ASR; automatic transcription; corpus curation; oral corpora; pluricentric; Ripuarian; spoken German
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URL: http://publica.fraunhofer.de/documents/N-592788.html
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Speech Analytics in Research Based on Qualitative Interviews. Experiences from KA3
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In: Fraunhofer IAIS (2018)
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KA3. Weiterentwicklung von Sprachtechnologien im Kontext der Oral History
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In: Fraunhofer IAIS (2017)
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