Playback speed for analysis

This is probably a stupid question…
How do I slow the speed of playback so I can identify a particular piece of sound I need to remove?
The Playback Speed bar doesn’t do it for me?

The Playback Speed bar doesn’t do it for me?

Why?

I don’t know-i set it to play at different speeds but it makes no difference, still plays back at normal. I wondered if I was missing something?

See: https://alphamanual.audacityteam.org/man/Play-at-Speed_Toolbar

WC