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author | Dana Conrad <dconrad@fastmail.com> | 2021-04-13 20:59:45 -0500 |
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committer | Solomon Peachy <pizza@shaftnet.org> | 2021-04-17 12:09:19 +0000 |
commit | 4dc602dd7f763a2ceea7c3e01501cdc3e9de375c (patch) | |
tree | 73dddc9beed4b103940f50415d6575496332f8e6 /rbutil/jztool/jztool.c | |
parent | a9d3e9a13d17c9036e88b4e4a0df40f210cf06d6 (diff) | |
download | rockbox-4dc602dd7f763a2ceea7c3e01501cdc3e9de375c.tar.gz rockbox-4dc602dd7f763a2ceea7c3e01501cdc3e9de375c.zip |
erosq: Tweak volume scale to be approximately correct
Tested on eros q, everything measured from line out,
open circuit.
- volume steps were approximately double the dB they
were labelled as, so "-2 dB" would result in a change
of about -4 dB from maximum (0, +6.2dBV)
- maximum volume defining the line out volume only
changed every 10 values, and then was not close
to correct- "-10 dB" resulted in -2.5 dB from maximum
This gets the volume dB approximately correct, and
maximum volume correctly sets the line out volume.
I was unable to get odd values in the max volume
to work, so set the step size to 2 instead of one.
For "consumer level" (-10dBV), set to -16.
For "Pro level" (+4dBu -> ~1.8dBV), set to -4.
Change-Id: I898b85d768153579a893b23551019af88f865d21
Diffstat (limited to 'rbutil/jztool/jztool.c')
0 files changed, 0 insertions, 0 deletions