LabChirp - Create simple sound effects on Windows.

NWEA Assessments - NWEA Assessments creates a personalized assessment experience by adapting to each student's learning level.

bfxr - An online chiptune sound generator.

Canvas by Instructure - The Canvas LMS is the world's fastest growing learning management system. Check out favorite features and schedule a live demo!

sfxia - Free retro style sound generator for games.

ExamView Assessment Suite - ExamView lets you can create assignments, launch classroom assessment questions and collect real-time responses to evaluate student performance.