https://www.physicsclassroom.com/interactive/sounds-waves/audio-analyzer-sim
Audio Analyzer allows a user to sample a sound, display its pressure fluctuations as an oscilloscope-style representation, and make measurements to determine...
audio analyzer
https://www.rohde-schwarz.com/in/applications/measurement-of-play-only-devices-like-mp3-players-with-r-s-audio-analyzer-upv-application-note_56280-15445.html
Measurement of Play-only devices like MP3 Players with R&S Audio Analyzer UPV
measurementplaydeviceslike