Introducing a new Test-Method for Diagnostic Speech Quality Assessment in a Conversational Situation
Introducing a new Test-Method for Diagnostic Speech Quality Assessment in a Conversational Situation
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引入一种新的对话情境下诊断性语音质量评估测试方法
DOI：
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发表时间：
2016
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通讯作者：
Sebastian Möller
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文献类型：
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作者：
Friedemann Köster;Sebastian Möller
传统的评估传输语音质量的方法通常受限于特定的限制。一方面，这些方法只要求测试参与者判断整体质量是如何感知的，另一方面，用户被放置在模拟的情况下，如语音或只说话，这并不反映现实。为了克服这种限制，在对话情况下的语音质量进行了分析，分为三个单独的阶段，并确定七个相应的质量相关的感知维度的对话。所提取的维度可以组合用于整体质量评估，并且可以单独用于诊断质量下降的技术原因。在这篇文章中，我们提出了一种新的方法，直接评估在会话的情况下确定的质量尺寸。这种新的分析评估方法的好处是减少了实验工作，因为减少了必要的尺度数量，从而减少了每个条件的判断数量。此外，该方法能够分析会话语音质量以进行诊断和优化。
Traditional methods for assessing the quality of transmitted speech are usually limited to specific restrictions. On the one hand, the methods only ask test participants to judge how the overall quality is perceived, and on the other hand users are placed in simulated situations, like listeningor speaking-only, that do not reflect reality. To overcome this limitations the speech quality in a conversational situation was analyzed by dividing a conversation into three separate phases and identifying seven corresponding quality-relevant perceptual dimensions. The extracted dimensions can be combined for the overall quality assessment and may separately be used to diagnose the technical reasons of quality degradation. In this article, we present a new method for directly assessing the identified quality dimensions in a conversational situation. The benefit of this new analytic assessment method is the reduced experimental effort due to the reduced number of necessary scales and thus the number of judgments per condition. Additionally, the method enables to analyze conversational speech quality for diagnosis and optimization.