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首页> 外文期刊>Journal of the Audio Engineering Society >Perceptual Objective Listening Quality Assessment (POLQA), The Third Generation ITU-T Standard for End-to-End Speech Quality Measurement Part Ⅰ-Temporal Alignment
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Perceptual Objective Listening Quality Assessment (POLQA), The Third Generation ITU-T Standard for End-to-End Speech Quality Measurement Part Ⅰ-Temporal Alignment

机译：感知目标听觉质量评估（POLQA），第三代ITU-T端到端语音质量测量标准，第一部分-时间对齐

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摘要

In two closely related papers we present POLQA (Perceptual Objective Listening Quality Assessment), the third generation perceptual objective speech quality measurement algorithm, standardized by the International Telecommunication Union (ITU-T) as Recommendation P.863 in 2011. The algorithm is composed of two separate parts, a temporal alignment that finds speech parts that belong together and a perceptual model that builds an internal representation of the aligned input and output of the device under test. This paper (Part Ⅰ) provides the basics of the POLQA approach and outlines the core elements of the underlying temporal alignment. The newly developed alignment approach allows assessing the latest Voice over IP technology that often introduces sudden align jumps (mostly in silent intervals) as well as slowly changing time scalings (mostly during speech activity), either using a pitch preserving technique like PSOLA (Pitch Synchronous Overlap Add) or a straight forward technique equivalent to sample rate changes.
机译：在两篇密切相关的论文中，我们介绍了第三代感知客观语音质量测量算法POLQA（感知客观收听质量评估），该算法在2011年被国际电信联盟（ITU-T）标准化为P.863建议书。两个独立的部分，一个时间对齐方式可以找到属于一起的语音部分，而一个感知模型则可以建立被测设备的对齐输入和输出的内部表示形式。本文（第一部分）提供了POLQA方法的基础，并概述了基本时间对齐的核心要素。新开发的对齐方式可以评估最新的IP语音技术，该技术通常会使用PSOLA（音高同步）等音高保持技术，引入突然的音高跳跃（主要是在无声间隔内）以及缓慢变化的时间缩放（主要是在语音活动期间）。重叠叠加）或等效于采样率变化的直接方法。

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