[pulseaudio-tickets] [Bug 93193] pulseaudio fails to adjust volume for USB sound stick but ALSA works

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=93193

--- Comment #12 from Raymond <superquad.vortex2 at gmail.com> ---
If volume at step 0 is minimum and step 53 is maximum loudness

You need to modify driver to report correct dB range by shift the dB range and
calibrate by find out how many steps can reduce a sine wave  signal to half

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