1 / 6

Evaluation of Speak

This project involves two parts: an in-depth user study with a friend ("group") and a brief study outside the group, focusing on user perception evaluation of a VoIP application. Experiment details include loss rates, latency variations, connection type comparison, and speech detection settings. The study includes recording user opinions and perceptual quality measures. The report structure includes an introduction, motivation, hypotheses, experiment design, analysis, conclusions, and findings summary.

michaeledwards
Download Presentation

Evaluation of Speak

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Evaluation of Speak Project 2b Due November 4th

  2. Overview • Experiments to evaluate performance of your VoIP application (Project 2) • 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 • Brief, 1-2 minute conversation • Record user opinions (1-10, 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, VoIP use… • Loss rates of 0%, 5%, 20% • Latencies of 40ms, 500ms, 1000ms • Record • Quality score (scale 1-10, or similar) • Subjective comments ("sounded good", "was hard to talk", etc). • Ask to compare with land-line phone call

  6. Report • Introduction (brief) • Motivation and Hypotheses • Background on your software (as needed) • Design of your experiments (brief, since given) • Details on above • Analysis (detailed) • Conclusions (brief) • Summarize findings • Abstract • 1 paragraph • Write last, goes first

More Related