Teaching an audio export comparison

LucasRown

I am preparing a classroom exercise about what changes when an audio file is exported into different formats. A generated instrumental could provide the example, provided students can always return to the original file. I would start with listening notes so that the image does not dictate their initial observations. I found mp3 to spectrogram as a possible reference while planning the visual part. We would then compare documented export settings using the same passage and a consistent playback level. Students should not assume that a difference in the display proves a problem with the source. A worksheet could separate audible observations, export settings, and questions that remain unresolved. The task would end with a comparison rather than a demand to fix the example. Students would record the software used for each export so that their comparison can be repeated later. Which comparison mistakes should I explain before students begin this exercise?