Ask before you record
Confirm that your lecturer and institution permit recording. Respect the preferences of other people whose voices may be captured. Use recordings for the purpose everyone agreed to.
Record a short test
Check microphone permission, available storage and whether your phone can hear the speaker clearly. A quick playback test is more useful than discovering an inaudible recording after class.
Leave yourself signposts
Add a bookmark when a difficult explanation or useful example begins. A short label such as exam technique saves time when you revisit the audio. Pair a recording with its course and give it a meaningful name.
Review, then keep what matters
Listen with a specific question in mind. Use playback speed and bookmarks to find the section you need. Recordings consume device storage, so review your files regularly. Use bookmarks and linked notes to capture the parts that matter most.