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.

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.

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.