[Bug 379323] [NEW] pavucontrol playback volume meter inaccurate

[Peepsalot]

Public bug reported:

Binary package hint: pavucontrol

In pavucontrol, volume meter shows 100% even when volume level is
lowered to around 90%

Steps to reproduce:
1. Generate a tone at 100% amplitude.  I used audacity to create this tone.  (I can upload the test tone I used if that helps.)
2. Use any audio application to play this tone file.  Set audio application's volume to 100%
3. Open pavucontrol and view the control for this application on the "playback" tab
4. While test tone plays, set the playback volume in pavucontrol for this app to 100%, and slowly lower the volume while watching the volume meter.

Actual Results:
The volume meter stays at 100% even after volume is lowered.  Only past around 90% does the volume meter start to lower, after which it rapidly drops. 

Expected results:
Volume meter should not show 100% when volume setting is less than 100%

attaching example screenshots

** Affects: pavucontrol (Ubuntu)
     Importance: Undecided
         Status: New

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pavucontrol playback volume meter inaccurate
https://bugs.launchpad.net/bugs/379323
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