Speech-To-Screen: Listening Experiment Data and Statistical Analyses spreadsheets

An Excel spreadsheet related to the Speech-To-Screen listening experiment conducted in the Listening Room at the University of Salford in 2017 as part of the EPSRC-funded S3A Future Spatial Audio at Home project. The aim of the experiment was to test the effect on speech intelligibility of different binaural auralisations of speech and noise related to headphone playback with small-screen devices.
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The experiment involved a speech-in-noise test, whereby subjects had to identify target words, in this case - letter-number pairs - in spoken sentences played simultaneously with either speech-shaped noise (SSN) or speech-modulated noise (SMN). Colated correct word scores converted to word recognition percentages then acted as a proxy for quantifying speech intelligibility for the different conditions tested.
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Spreadsheet includes: 
* Read Me page - including an overview of the independent variables;
* Raw data collected: letter-number combinations entered by subjects into a graphical user interface for each trial;
* Correct word scores for each trial;
* Scores summed by subject and combination of conditions, then converted to ratios and percentages;
* Criterion checks for use of 3-way RMANOVA;
* Statistical analyses using 3-way RMANOVA and post-hoc pairwise comparisons;
* Further analyses, including quantified intelligibility of the 16 different speakers' content from the GRID speech corpus used.

本数据集为2017年英国索尔福德大学听音室开展的语音-屏幕（Speech-To-Screen）聆听实验相关Excel电子表格，该实验隶属于英国工程与物理科学研究委员会（EPSRC）资助的S3A家用未来空间音频（S3A Future Spatial Audio at Home）项目。本实验旨在测试搭配小型显示屏设备的耳机播放场景下，语音与噪声的不同双耳听觉化（binaural auralisation）处理方案对语音清晰度（speech intelligibility）的影响。

本次实验采用噪声环境下的语音识别测试流程：受试者需在同时播放的语音句子中识别目标词汇，本实验中目标词汇为字母-数字对，背景噪声可选语音形噪声（speech-shaped noise, SSN）或语音调制噪声（speech-modulated noise, SMN）。将收集到的正确识别词汇数转换为单词识别率，以此作为量化不同测试条件下语音清晰度的替代指标。

该电子表格包含以下内容：
* 说明文档页：涵盖实验自变量的概述信息；
* 原始采集数据：受试者在每个试次中通过图形用户界面输入的字母-数字组合结果；
* 各试次的正确词汇识别得分；
* 按受试者个体及测试条件组合汇总的得分，并转换为比值与百分比；
* 用于三因素重复测量方差分析（3-way RMANOVA）的适用性校验数据；
* 采用三因素重复测量方差分析及事后两两比较的统计分析结果；
* 进一步分析结果，包括本次实验所用GRID语音语料库（GRID speech corpus）中16位不同说话人的语音内容可懂度量化结果。