Hi All, Sorry to be that person to send this multiple times, but I'm still looking for participants for this study.
As part of my PhD I am conducting large scale subjective testing of audio that has been processed using different Time-Scale Modification algorithms, and I would appreciate your assistance. To facilitate this I have used the Web Audio Evaluation Tool to enable subjective testing through a browser, and am conducting the research under Griffith University Ethics Reference 2018/671. The subjective testing can be found at http://www.timrobertssound.com.au/TSM/index.html with each set taking approximately 10-15 minutes to complete. You are able to complete as many or as few sets as you prefer. I currently have ~16600 ratings of files, with the goal to reach 25000. It turns out that people know when audio sounds good and bad, but quality ratings vary quite a bit in the middle. I've added a plot of the current responses to a reddit post requesting assistance. https://www.reddit.com/r/SampleSize/comments/b40q7w/repostacademic_rating_the_quality_of_time_scaled/ [https://preview.redd.it/6ck3htegmln21.png?overlay-align=bottom,left&overlay-pad=8,16&crop=1106:579.057591623,smart&overlay-height=0.10&overlay=%2Fv9vyirk6hl221.png%3Fs%3Db466421949eb723078743745ce6421609d7a9c66&width=1106&height=579.057591623&auto=webp&s=ba3d694a0a52c8260b65ba80e094aee0bd6b98ed]<https://www.reddit.com/r/SampleSize/comments/b40q7w/repostacademic_rating_the_quality_of_time_scaled/> [Repost][Academic] Rating the quality of time scaled audio files (~10 minutes)(Everyone)<https://www.reddit.com/r/SampleSize/comments/b40q7w/repostacademic_rating_the_quality_of_time_scaled/> www.reddit.com Posted in r/SampleSize by u/zygurt • 1 point and 1 comment If you have any questions or suggestions please feel free to contact me. Also, please feel free to pass the link through to anyone who you believe may be interested in this research. Regards, Tim Roberts PhD Candidate B. MusTech, B. Eng ECE
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