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Evaluation of Speak

Evaluation of Speak. Project 2b Due March 30 th. Overview. Experiments to evaluate performance of your audioconference (proj2) Focus not only on how your software performs, but also design, implementation of experiments analysis writeup. Details. Two parts

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Evaluation of Speak

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  1. Evaluation of Speak Project 2b Due March 30th

  2. Overview • Experiments to evaluate performance of your audioconference (proj2) • Focus not only on how your software performs, but also • design, implementation of experiments • analysis • writeup

  3. Details • Two parts • in-depth user study with friend (called “group”) • More forgiving users, less objective • brief user study outside group • For both parts, evaluate by user perception • 1-2 minute conversation • Record user opinions (1-100, or similar) • Pencil and paper, software, …

  4. In Group • Baseline case: 0% loss, UDP, no speech detection, 40ms • Compare versus: • Loss: 0%, 1%, 5%, 10%, 20% • Latency (by increasing the sample interval): 40ms, 100ms, 250ms, 500ms, 1000ms • Connection type: TCP, UDP • Speech detection: on, off • Pick (and justify) Perceptual Quality measure

  5. Outside Group • 1-3 people outside of your group • Record some basic information • age, gender, profession… • Loss rates of 0%, 5%, 20% • Record • Quality score (scale 1-100, or similar) • Subjective comments ("sounded good", "was hard to talk", etc). • Ask to compare with phone call

  6. Report • Introduction (brief) • hypotheses and motivation • Background on your software (optional) • Design of your experiments (brief, since given) • details on above • Analysis (detailed) • Conclusions (brief) • summarize findings • Abstract • 1 paragraph • Write last, goes first

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