Titlebook: Influencing Factors in Speech Quality Assessment using Crowdsourcing; Rafael Zequeira Jiménez Book 2022 The Editor(s) (if applicable) and

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Influence of Language, be challenging and expensive. Additionally, it is difficult to control the language proficiency of crowd-workers. Consequently, some listeners may end up participating in a listening test of a target language other than their mother tongue.

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Method,g method used in practice. This chapter introduces relevant information regarding the test procedures in crowdsourcing and the laboratory necessary to understand the studies conducted throughout this thesis. Additionally, the speech databases employed in most of the experiments are presented.

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Impact of Background Noise,nd not enough information about their playback system and background environment. The validity of data gathered in a disturbed environment is questionable, especially in speech quality assessment studies.

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978-3-030-93312-8The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Switzerl

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https://doi.org/10.1007/978-3-030-93310-4speech quality assessment; crowdsourcing; speech degradation conditions; speech quality studies in crow

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Rafael Zequeira JiménezPresents findings from ITU-T Recommendation P.808 which sets the methodology.Includes a framework to collects reliable speech quality scores in crowdsourcing.Provides two datasets of labeled environme

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