Meter Toolbar
From Audacity Development Manual
The Meter Toolbar, showing the playback and recording meter
The green bar shows the playback level, and the red bar shows recording level.
Monitoring
When you are preparing to record it is useful to monitor the input without actually pressing the record button. This is useful for setting levels and checking that you have the input source that you expect.
There are two ways to turn input monitoring on and off:
- Left-click on the recording meter to turn monitoring on. Click again to turn monitoring off.
- Click on the downward-pointing arrow beside the microphone symbol - the meter drop-down menu appears. Choose "Begin Monitoring" or "Stop Monitoring" as appropriate.
Undocking and Resizing
The meter toolbar can also be undocked and displayed as a window in its own right. It can be resized, giving longer scales for the meters and hence a more accurate view of the volume levels.
What the shades and bars mean
The image below shows the floating vertical meter bar, along with descriptions of the various shades and bars.

