First draft of a complete description of the Graphical EQ menu. Still needs button mappings for iAudio and possibly H10. Address FS#5540.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11222 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 126 insertions, 35 deletions

diff --git a/manual/configure_rockbox/sound_settings.tex b/manual/configure_rockbox/sound_settings.tex
index 79b0060153..31f3ce5adf 100755
--- a/manual/configure_rockbox/sound_settings.tex
+++ b/manual/configure_rockbox/sound_settings.tex
@@ -253,41 +253,132 @@ change to customize your listening experience.
   Rockbox features a parametric equalizer. As the name suggests, a parametric
   equalizer lets you control several different parameters for each band of the
   equalizer. Rockbox's parametric EQ is composed of five different EQ bands:
-  \begin{description}
-  \item[Band 0:  Low shelf filter.] A low shelf filter boosts or lowers all
-    frequencies below the designated cutoff point. The ``bass''control on
-    most home or car stereos is an example of a low shelf filter. The low shelf
-    filter in Rockbox is more flexible than a simple ``bass'' control, because
-    a simple bass control only lets you adjust the amount of gain that is
-    applied. Rockbox lets you control the amount of gain that is applied
-    (i.e., the amount that the bass is boosted or cut) too, but Rockbox also
-    allows you to adjust the ``cutoff'' frequency where the shelving starts
-    to take effect. For example, a cutoff frequency of 50 Hz will adjust only
-    very low frequencies. A cutoff frequency of 200 Hz, on the other hand,
-    will adjust a much wider range of bass frequencies.
-  \item[Bands 1-3: Peaking filters.]
-    Peaking EQ filters boost or low a center frequency that you select, as
-    well as the frequencies within a certain distance of that center. Graphic
-    equalizers in home stereos are usually peaking filters. The peaking EQs
-    on Rockbox's parametric equalizer let you adjust three different
-    parameters for each EQ band 1 through 3.  The ``center'' parameter
-    controls the center frequency that is adjusted by that EQ band. The
-    ``gain'' parameter controls how much each band is adjusted. Positive
-    numbers make the EQ band louder, while negative numbers make that EQ band
-    quieter. Finally, the ``Q'' parameter controls how wide or narrow each EQ
-    band is. Higher Q values will affect a narrow band of frequencies, while
-    lower EQ values will affect a wider band of frequencies.
-  \item[Band 4: High shelf filter.]
-    A high shelf filter boosts or lowers all frequencies above a designated
-    cutoff point. The ``treble'' control on most home or car stereos is an
-    example of a high shelf filter. The high shelf filter is adjusted the
-    same way as the low shelf filter, except that it works on the high end
-    of the frequency spectrum rather than the low end.
-  \end{description}
-    
+ 
+  \begin{table}
+  \begin{center}
+  \begin{tabularx}{\textwidth}{lX}\toprule
+      \textbf{EQ Band(s)} & \textbf{Description} \\\midrule
+        Band 0:  Low shelf filter
+        & A low shelf filter boosts or lowers all frequencies below the 
+        	designated cutoff point. The ``bass''control on most home or car 
+        	stereos is an example of a low shelf filter. The low shelf 
+        	filter in Rockbox is more flexible than a simple ``bass'' 
+        	control, because a simple bass control only lets you adjust 
+        	the amount of gain that is applied. Rockbox lets you control 
+        	the amount of gain that is applied (i.e., the amount that the 
+        	bass is boosted or cut) too, but Rockbox also allows you to 
+        	adjust the ``cutoff'' frequency where the shelving starts to take 
+        	effect. For example, a cutoff frequency of 50 Hz will adjust only very 
+        	low frequencies. A cutoff frequency of 200 Hz, on the other hand, will 
+        	adjust a much wider range of bass frequencies.. \\
+        %
+        Bands 1-3:  Peaking filters
+       	& Peaking EQ filters boost or low a center frequency that you select, 
+       		as well as the frequencies within a certain distance of that 
+       		center. Graphic equalizers in home stereos are usually peaking
+       		filters. The peaking EQs on Rockbox's parametric equalizer let
+       		you adjust three different parameters for each EQ band 1 
+       		through 3.  The ``center'' parameter controls the center 
+       		frequency that is adjusted by that EQ band. The ``gain'' 
+       		parameter controls how much each band is adjusted. Positive 
+       		numbers make the EQ band louder, while negative numbers make 
+       		that EQ band quieter. Finally, the ``Q'' parameter controls how wide 
+       		or narrow each EQ band is. Higher Q values will affect a 
+       		narrow band of frequencies, while lower EQ values will affect 
+       		a wider band of frequencies. \\
+        %
+        Band 4:  Hi shelf filter
+       	& A high shelf filter boosts or lowers all frequencies above a 
+        	designated cutoff point. The ``treble'' control on most home or car 
+        	stereos is an example of a high shelf filter. The high shelf filter is 
+        	adjusted the same way as the low shelf filter, except that it works on 
+        	the high end of the frequency spectrum rather than the low end.\\
+        \bottomrule
+  \end{tabularx}
+  \end{center}
+  \end{table}
+   
   So, as a general guide, EQ band 0 should be used for lows, EQ bands 1 
   through 3 should be used for mids, and EQ band 4 should be used for highs. 
-  You can find more information about setting the parametric equalizer and
-  using equalizer presets in the Advanced Topics chapter of this manual.
-  \fixme{This information is not yet added}
+  
+\begin {description}
+  \item[Enable EQ:]
+  This option controls whether the EQ is on or off.
+  
+  \item[Graphical EQ:]
+  This option brings up a graphic EQ screen, which allows adjustment of each of 
+  the three parameters described above (gain, center frequency, and Q) for each 
+  of the five EQ bands.  
+  
+  \begin{table}
+    \begin{btnmap}{}{}
+      \opt{IPOD_4G_PAD,IPOD_3G_PAD,IPOD_VIDEO_PAD}{\ButtonScrollFwd}
+      \opt{IRIVER_H100_PAD,IRIVER_H300_PAD,IAUDIO_X5_PAD}{\ButtonUp} 
+      & Raises the highlighted parameter.\\
+      %
+      \opt{IPOD_4G_PAD,IPOD_3G_PAD,IPOD_VIDEO_PAD}{\ButtonScrollBack}
+      \opt{IRIVER_H100_PAD,IRIVER_H300_PAD,IAUDIO_X5_PAD}{\ButtonDown} 
+      & Lowers the highlighted parameter.\\
+      %
+      \opt{IRIVER_H100_PAD,IRIVER_H300_PAD,IAUDIO_X5_PAD}{\ButtonLeft}
+      \opt{IPOD_4G_PAD,IPOD_3G_PAD,IPOD_VIDEO_PAD}{\ButtonLeft} 
+      & Moves to the previous EQ band. \\
+      %
+      \opt{IRIVER_H100_PAD,IRIVER_H300_PAD,IAUDIO_X5_PAD}{\ButtonRight}
+      \opt{IPOD_4G_PAD,IPOD_3G_PAD,IPOD_VIDEO_PAD}{\ButtonRight} 
+      & Moves to the next EQ band. \\
+			%
+      \opt{IRIVER_H100_PAD,IRIVER_H300_PAD}{\ButtonSelect}
+      \opt{IAUDIO_X5_PAD,IPOD_4G_PAD,IPOD_3G_PAD,IPOD_VIDEO_PAD}{\ButtonSelect} 
+      & Toggles the cursor among the three parameters (gain, center frequency, 
+    	  Q) for the selected EQ band.\\  
+			%
+      \opt{IRIVER_H100_PAD,IRIVER_H300_PAD}{\ButtonMode}
+      \opt{IPOD_4G_PAD,IPOD_3G_PAD,IPOD_VIDEO_PAD}{\ButtonMenu} 
+      & Exits the graphic EQ screen.\\      	  
+    \end{btnmap}
+  \end{table}
+  
+  \item[Pre-cut:]
+  If too much gain is added through the graphical EQ, your music may distort. 
+  The \setting{Precut} setting allows you to adjust the overall gain of the EQ. 
+  If your music distorts when using the EQ, trying changing this setting to a 
+  negative value.
+
+	\item[Simple EQ:]	
+	This option provides an easier alternative for those who are daunted by all of 
+	the parameters that can be adjusted using the graphical EQ.  With the 
+	\setting{Simple EQ}, the only parameter that can be adjusted is the gain.
+
+	\item[Advanced EQ:]
+	This submenu provides options for adjusting the same parameters as the 
+	\setting{Graphical EQ}.  The only difference is that the parameters are 
+	adjusted through textual menus rather than through a graphic interface.
+	
+	\item[Save EQ Preset:]
+	This option saves the current EQ configuration in a \fname{.cfg} file.
+	
+	\item[Browse EQ Presets:]
+	This menu displays a list EQ presets, as well as any EQ configurations saved 
+	using the \setting{Save EQ Preset} option.  Users unfamiliar with the 
+	operation of a parametric EQ may wish to use the presets instead of trying to 
+	configure the EQ, or use the presets for designing their own custom EQ 
+	settings.
+	
+\end{description}
+}
+
+\opt{ipodvideo}{
+\section{Hardware EQ}
+
+	This function controls the EQ that is built into the hardware of your 
+	\playerman{}.  The hardware EQ functions similarly to the Graphical EQ in that 
+	it allows adjustmnet of several parameters.  However, unlike the Graphical EQ, 
+	the Hardware EQ allows the user to choose from a limited number of settings 
+	for ``Center Frequency'' and ``Bandwidth'' (``Bandwidth'' in the Hardware EQ 
+	is similar to ``Q'' in the Graphical EQ).
+	
+	\note{While the \setting{Hardware EQ} menu shows Low Shelf, three peaking 
+	filters, and High Shelf, the peaking filters are not currently operational.}
+	
 }