Under that display, the Winamp displays the recording quality of the .MP3. The kbps display shows kilobits per second; the kHz display shows the frequency at which the MP3 is being played back. Next to that are two displays that are lit up to denote if the file is a Mono or Stereo recording.
Audio Frequency Stereo/Mono
The second slider bar controls the balance between left and right speakers.
Back track Skip back to previous song in playlist
Play Play current song in playlist or resume from pause
Pause Stop playing but hold current position in current song
Stop Stop playing current song
Next track Skip ahead to next song in playlist
Open file Click to open a new file
Shuffle Set playmode play songs in random order
Repeat Constantly loop current playlist