Specifications

Chapter 8. General Settings 66
Scale. Select whether the peak meter displays linear or logarithmic values. The
human ear perceives loudness on a logarithmic scale. If the Scale setting is
set to Logarithmic (dB) scale, the volume values are scaled logarithmically.
The volume meters of digital audio devices usually are scaled this way. On
the other hand, if you are interested in the power level that is applied to
your headphones you should choose Linear display. This setting cannot
be displayed in units like volts or watts because such units depend on your
headphones.
Minimum and maximum range. These two options define the full value range
that the peak meter displays. Recommended values for the Logarithmic
(dB) setting are -40 dB for minimum and 0 dB for maximum. Recommended
values for Linear display are 0 and 100%. Note that -40 dB is approxi-
mately 1% in linear value, but if you change the minimum setting in linear
mode slightly and then change to the dB scale, there will be a large change.
You can use these values for ‘zooming’ into the peak meter.
Default Codepage. A codepage describes the way extended characters that are not
available within the ASCII character set are encoded. ID3v1 tags do not have a
codepage encoding contained so Rockbox needs to know what encoding has been
used when generating these tags. This should be “ISO-8859-1” but to support lan-
guages outside Western Europe most applications use the setting of your operating
system instead. If your operating system uses a different codepage and you are
getting garbled extended characters you should adjust this settings. In most cases
sticking to “ISO-8859-1” would be sufficient.
8.5. System
8.5.1. Battery
Options relating to the battery in the player.
Battery Capacity. This setting can be used to tell Rockbox what capacity (in mAh)
the battery being used has. The default is 950 mAh, which is the capacity value
for the standard battery shipped with the player. Rockbox uses this value for
runtime estimation, not battery percentage calculation. Changing this setting has
no effect whatsoever on actual battery life. This setting only affects the accuracy
of the runtime estimation as shown on screen. Rockbox does not automatically
distinguish between the “L” models and the “simple” models which determine the
default value. If your player is an M5L set the value to 2250 mAh for more accuracy
in the runtime estimation.
8.5.2. Disk
Options relating to the hard disk.
The Rockbox manual (version rUnversioned directory-150517) Iaudio M5