Have you tried soundbraid?
yes but it only manages the already sndio volume range.
i mean when i play music in hyperbola it sound less louder than when my past experience with parabola (both played at default available max volume).
its not very critical issue, but i like hearing my dangdut music with a lot more volume
anyway if other of you are dj like me i just discovered these mpv overrides (you might put them in mpv.conf)
volume-max=( value between 100-1000)
# very high gain, distort audio quality
# fair audio gain, keeps audio quality