manual nitpicking: minus sign

for negative numbers, use math mode instead of hyphen
(e.g $-1$ instead of -1)

Change-Id: Idb5733ce5c4984bfbe12b01e0b54109fe0e3bff6

manual/configure_rockbox/display_options.tex

@@ -270,8 +270,8 @@
     \item[Minimum and maximum range.]
       These two options define the full value range that the peak meter
       displays. Recommended values for the \setting{Logarithmic} (dB) setting
-      are {}-40~dB for minimum and 0~dB for maximum. Recommended values
-      for \setting{Linear} display are 0 and 100\%. Note that {}-40~dB is
+      are $-40$~dB for minimum and 0~dB for maximum. Recommended values
+      for \setting{Linear} display are 0 and 100\%. Note that $-40$~dB is
       approximately 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'

manual/configure_rockbox/playback_options.tex

@@ -192,7 +192,7 @@ you to configure settings related to audio playback.
       much, so here you can compensate for that. Please note that a
       (large) positive pre-amp setting can cause clipping, unless
       prevent clipping is enabled.  The pre-amp can be set to any
-      decibel (dB) value between -12~dB and +12~dB, in increments of 0.5~dB.
+      decibel (dB) value between $-12$~dB and +12~dB, in increments of 0.5~dB.
     \end{description}
 
 \section{Track Skip Beep}

manual/configure_rockbox/recording_settings.tex

@@ -222,25 +222,25 @@ More information can be found at \wikilink{VolumeTriggeredRecording}.
     automatically controlling the gain while recording.
     \begin{description}
       \item[Safety (clip).]
-        This preset will lower the gain when the levels get too high (-1~dB)
+        This preset will lower the gain when the levels get too high ($-1$~dB)
         and will never increase gain.
         
       \item[Live (slow).]
         This preset is designed to be used for recording of live shows and has
         quite large headroom for loud parts. It heads for a nominal target peak
-        level of -9~dB and will slowly increase or decrease gain to reach it.
+        level of $-9$~dB and will slowly increase or decrease gain to reach it.
         
       \item[DJ-Set (slow).]
-        This preset heads for a nominal target peak level of -5~dB and will
+        This preset heads for a nominal target peak level of $-5$~dB and will
         slowly increase or decrease gain to reach it.
         
       \item[Medium.]
-        This preset heads for a nominal target peak level of -6~dB and will
+        This preset heads for a nominal target peak level of $-6$~dB and will
         increase or decrease gain to reach it.
 
       \item[Voice (fast).]
         This preset is designed to be used for voice recording and heads for a
-        nominal target peak level of -7~dB and will quickly increase or
+        nominal target peak level of $-7$~dB and will quickly increase or
         decrease gain to reach it.
     \end{description}
 

manual/configure_rockbox/sound_settings.tex

@@ -17,22 +17,22 @@ change to customise your listening experience.
       an otherwise low volume level.
   }
   The volume can be adjusted from a
-  \opt{iriverh100,iriverh300}{minimum of -84~dB to a maximum of 0~dB.}%
+  \opt{iriverh100,iriverh300}{minimum of $-84$~dB to a maximum of 0~dB.}%
   \opt{iaudiom3,iaudiom5,iaudiox5,ipod3g,ipod4g,gigabeatf,mrobe100,mpiohd200}{%
-      minimum of -73~dB to a maximum of +6~dB.}%
-  \opt{ipodnano}{minimum of -72~dB to a maximum of +6~dB.}%
-  \opt{ipodvideo,cowond2}{minimum of -89~dB to a maximum of +6~dB.}%
+      minimum of $-73$~dB to a maximum of +6~dB.}%
+  \opt{ipodnano}{minimum of $-72$~dB to a maximum of +6~dB.}%
+  \opt{ipodvideo,cowond2}{minimum of $-89$~dB to a maximum of +6~dB.}%
   \opt{ipodnano2g,ipodcolor,ipod1g2g,iriverh10,iriverh10_5gb,sansa,sansaAMS}{minimum of
-      -74~dB to a maximum of +6~dB.}%
-  \opt{gigabeats}{minimum of -90~dB to a maximum of +6~dB.}%
-  \opt{gigabeatf,vibe500}{minimum of -74~dB to a maximum of +6~dB.}%
-  \opt{fuzeplus}{minimum of -100~dB to a maximum of +6~dB.}%
-  \opt{samsungyh}{minimum of -128~dB to a maximum of 0~dB.}%
-  \opt{erosqnative}{minimum of -74~dB (mute) to a maximum of -2~dB.}%
-  \opt{rgnano}{minimum of -80~dB (mute) to a maximum of 0~dB.}%
-  \opt{ipodvideo}{\\Remark: Lowering the volume below -57~dB will also affect the line-out
+      $-74$~dB to a maximum of +6~dB.}%
+  \opt{gigabeats}{minimum of $-90$~dB to a maximum of +6~dB.}%
+  \opt{gigabeatf,vibe500}{minimum of $-74$~dB to a maximum of +6~dB.}%
+  \opt{fuzeplus}{minimum of $-100$~dB to a maximum of +6~dB.}%
+  \opt{samsungyh}{minimum of $-128$~dB to a maximum of 0~dB.}%
+  \opt{erosqnative}{minimum of $-74$~dB (mute) to a maximum of $-2$~dB.}%
+  \opt{rgnano}{minimum of $-80$~dB (mute) to a maximum of 0~dB.}%
+  \opt{ipodvideo}{\\Remark: Lowering the volume below $-57$~dB will also affect the line-out
   and the recording gain.}%
-  \opt{cowond2}{\\Remark: Lowering the volume below -57~dB will also affect the line-out.}%
+  \opt{cowond2}{\\Remark: Lowering the volume below $-57$~dB will also affect the line-out.}%
   \opt{erosqnative}{\note{When the Line Out is used without anything connected to the
       Headphone port, the volume is fixed. The value is user-configurable; see \setting{Volume Limit}, \reference{ref:volume_limit}.
       If the Headphone port is connected, the volume once again uses the normal \setting{Volume} setting,
@@ -53,10 +53,10 @@ change to customise your listening experience.
   sounds are unaltered (flat response).
   \opt{iriverh100,iriverh300}{The minimum setting is 0~dB and the maximum is 24~dB.}%
   \opt{ipodnano,ipodnano2g,ipodcolor,mpiohd200}{%
-      The minimum setting is -6~dB and the maximum is 9~dB.}%
-  \opt{ipodvideo}{The minimum setting is -12~dB and the maximum is 12~dB.}%
+      The minimum setting is $-6$~dB and the maximum is 9~dB.}%
+  \opt{ipodvideo}{The minimum setting is $-12$~dB and the maximum is 12~dB.}%
   \opt{iaudiom3,iaudiom5,iaudiox5,sansa,sansaAMS,iriverh10,iriverh10_5gb,vibe500,fuzeplus%
-      ,samsungyh}{The minimum setting is -24~dB and the maximum is 24~dB.}
+      ,samsungyh}{The minimum setting is $-24$~dB and the maximum is 24~dB.}
 
 \opt{ipodvideo}{
 \section{Bass Cutoff}
@@ -73,10 +73,10 @@ change to customise your listening experience.
   treble sounds are unaltered (flat response).
   \opt{iriverh100,iriverh300}{The minimum setting is 0~dB and the maximum is 6~dB.}%
   \opt{ipodnano,ipodnano2g,ipodcolor,mpiohd200}{%
-      The minimum setting is -6~dB and the maximum is 9~dB.}%
-  \opt{ipodvideo}{The minimum setting is -12~dB and the maximum is 12~dB.}%
+      The minimum setting is $-6$~dB and the maximum is 9~dB.}%
+  \opt{ipodvideo}{The minimum setting is $-12$~dB and the maximum is 12~dB.}%
   \opt{iaudiom3,iaudiom5,iaudiox5,sansa,sansaAMS,iriverh10,iriverh10_5gb,vibe500,fuzeplus%
-      ,samsungyh}{The minimum setting is -24~dB and the maximum is 24~dB.}
+      ,samsungyh}{The minimum setting is $-24$~dB and the maximum is 24~dB.}
 
 \opt{ipodvideo}{
 \section{Treble Cutoff}
@@ -587,7 +587,7 @@ original (dry) and 'effected' (wet) signals.
 This setting implements a group delay correction and an additional biophonic EQ to
 emphasize to boost bass perception. The \setting{precut} setting provides
 negative overall gain to prevent possible audio distortion due to the EQ
-gain.  The defult precut value is set to -2.5 dB and can be adjust from 0 dB to -4.5 dB.
+gain.  The defult precut value is set to $-2.5$~dB and can be adjust from 0 dB to $-4.5$~dB.
 Note that this effect will stack with any other EQ applied.
 
 \section{Auditory Fatigue Reduction}
@@ -608,7 +608,7 @@ There are several settings associated with the compressor.  The first, and most
 important, is the \setting{Threshold}.  The threshold is the audio input level
 at which the compressor begins to act.  Any level louder than the threshold
 will be compressed to some extent.  The maximum amount of compression, or the
-quietest level at which the compressor will operate, is -24~dB.  The default of
+quietest level at which the compressor will operate, is $-24$~dB.  The default of
 Off disables the compressor.
 
 The \setting{Makeup Gain} setting has two options: Off and Auto.  Off means

manual/configure_rockbox/system_options.tex

@@ -252,7 +252,7 @@ therefore result in better runtime.
       \item [Touchpad Sensitivity. ]This setting controls the amount of pressure needed to
       register a touchpad press. If set to \opt{SANSA_FUZEPLUS_PAD}{\setting{25}}\opt{GIGABEAT_PAD}
       {\setting{High}} the lightest touch will register. If set to \opt{SANSA_FUZEPLUS_PAD}
-      {\setting{-25}}\opt{GIGABEAT_PAD}{\setting{Normal}} a firmer press will be needed to register
+      {\setting{$-25$}}\opt{GIGABEAT_PAD}{\setting{Normal}} a firmer press will be needed to register
       on the touchpad.
     }
     \end{description}

manual/getting_started/installation.tex

@@ -1082,10 +1082,10 @@ need to be updated.\\
 
 \nopt{rgnano}{
   \nopt{iriverh100,iriverh300,mpiohd200}{\item[``File Not Found'']}
-  \opt{iriverh100,iriverh300,mpiohd200}{\item[``-1 error'']}
+  \opt{iriverh100,iriverh300,mpiohd200}{\item[``$-1$ error'']}
     If you receive a
     \nopt{iriverh100,iriverh300,mpiohd200,rgnano}{``File Not Found''}
-    \opt{iriverh100,iriverh300,mpiohd200}{``-1 error''}
+    \opt{iriverh100,iriverh300,mpiohd200}{``$-1$ error''}
     from the bootloader, then the bootloader cannot find the Rockbox firmware.
     This is usually a result of not extracting the contents of the \fname{.zip}
     file to the proper location\nopt{erosqnative}{, and should not happen when Rockbox has been

manual/rockbox_interface/wps.tex

@@ -173,8 +173,8 @@ several indicators.
   Between the indicators of the right and left channel there are little dots.
   These dots represent important volume values. In linear mode each dot is a
   10\% mark. In dBFS mode the dots represent the following values (from right
-  to left): 0~dB, {}-3~dB, {}-6~dB, {}-9~dB, {}-12~dB, {}-18~dB, {}-24~dB, {}-30~dB,
-  {}-40~dB, {}-50~dB, {}-60~dB.
+  to left): 0~dB, $-3$~dB, $-6$~dB, $-9$~dB, $-12$~dB, $-18$~dB, $-24$~dB, $-30$~dB,
+  $-40$~dB, $-50$~dB, $-60$~dB.
 \end{description}
 
 \subsection{\label{sec:contextmenu}The WPS Context Menu}