Something chimes, no window, no badge. What Just Pinged Me? was already listening: it records each sound as it happens and names the source — not “Safari” but the tab’s title and URL, the app behind a helper process, the Notification Center ping, or a script and the file it played (“Played Glass.aiff”). Repeats fold into one row with a count, and every entry has a play button. Free, 1.1MB, macOS 15, no network connection of any kind.