Having a measure of students' understanding of the main concepts useful in acoustics is a way to optimize the content of your teaching. Making this measurement at the end of the course also provides information on the effectiveness of the course. International tests exist in the physics community. They have been optimized in terms of question formulation, redundancy of concepts within several questions, and false answers, which are the most common ones given by students. In mechanics, several tests are being disseminated on a French scale: point mechanics, point statics, solid statics, fluid mechanics. They have been translated into French and made available from any LMS platform at your university. The teacher who uses it to test his students must commit himself to respect a certain number of rules. The students' answers are processed by the members of the AFM's GTT-AUM teaching committee and a summary is sent to the teacher. A comparison of a cohort's results with the national average is also provided. For some tests, remediation tools have been put online, free for the teacher to use them or to invite students to self-study on concepts he failed. Perhaps it is time to create a specific acoustic test, respecting the optimization process of it? Who's up for it?