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Diffstat (limited to 'manual')
-rw-r--r-- | manual/configure_rockbox/images/ss-sound-settings-240x320x16.png | bin | 25394 -> 26821 bytes | |||
-rw-r--r-- | manual/configure_rockbox/sound_settings.tex | 75 |
2 files changed, 69 insertions, 6 deletions
diff --git a/manual/configure_rockbox/images/ss-sound-settings-240x320x16.png b/manual/configure_rockbox/images/ss-sound-settings-240x320x16.png index 40199afe30..ae16fa8030 100644 --- a/manual/configure_rockbox/images/ss-sound-settings-240x320x16.png +++ b/manual/configure_rockbox/images/ss-sound-settings-240x320x16.png | |||
Binary files differ | |||
diff --git a/manual/configure_rockbox/sound_settings.tex b/manual/configure_rockbox/sound_settings.tex index 4ce6bea6d5..fb6f8b03f8 100644 --- a/manual/configure_rockbox/sound_settings.tex +++ b/manual/configure_rockbox/sound_settings.tex | |||
@@ -31,7 +31,8 @@ change to customise your listening experience. | |||
31 | \opt{ipodvideo}{\\Remark: Lowering the volume below -57~dB will also affect the line-out | 31 | \opt{ipodvideo}{\\Remark: Lowering the volume below -57~dB will also affect the line-out |
32 | and the recording gain.} | 32 | and the recording gain.} |
33 | \opt{cowond2}{\\Remark: Lowering the volume below -57~dB will also affect the line-out.} | 33 | \opt{cowond2}{\\Remark: Lowering the volume below -57~dB will also affect the line-out.} |
34 | 34 | ||
35 | \nopt{gigabeats}{ | ||
35 | \section{Bass} | 36 | \section{Bass} |
36 | This setting emphasises | 37 | This setting emphasises |
37 | \nopt{h100,h300}{or suppresses} | 38 | \nopt{h100,h300}{or suppresses} |
@@ -73,6 +74,66 @@ change to customise your listening experience. | |||
73 | range of treble frequencies. The actual cutoff frequency used for each setting | 74 | range of treble frequencies. The actual cutoff frequency used for each setting |
74 | value will vary with sample rate. | 75 | value will vary with sample rate. |
75 | } | 76 | } |
77 | } | ||
78 | |||
79 | \opt{gigabeats}{ | ||
80 | \section{Tone Controls} | ||
81 | There is a five-band equalizer built into your \dap{} that allows you to | ||
82 | control various different parameters for each band. This equalizer is | ||
83 | implemented in hardware, and therefore does not tax the processor when in use. | ||
84 | Rockbox also features a more advanced five-band equalizer (see | ||
85 | \reference{ref:EQ}) that is implemented in software and allows more fine | ||
86 | grained control, but also requires more processor time. | ||
87 | |||
88 | \begin{description} | ||
89 | \item[Band 1 Gain.] | ||
90 | This band acts as a low shelf filter that boosts or lowers all | ||
91 | frequencies below a certain frequency limit, much as a ``bass'' | ||
92 | control found on ordinary stereo systems does. The ``gain'' parameter | ||
93 | controls how much the loudness of the band is adjusted. Positive | ||
94 | numbers make the EQ band louder, while negative numbers make that EQ | ||
95 | band quieter. | ||
96 | \item[Bands 2-4 Gain.] | ||
97 | These bands act as peaking filters that boost or lower a frequency | ||
98 | range centered at a certain frequency. Graphic equalizers in home | ||
99 | stereos are usually peaking filters. The ``gain'' parameter controls | ||
100 | how much each band is adjusted as with the the low shelf filter. | ||
101 | \item[Band 5 Gain.] | ||
102 | Band 5 acts as a high shelf filter, boosting or lowering all | ||
103 | frequencies above a certain frequency limit, much like a ``treble'' | ||
104 | control found on ordinary stereo systems does. As with the other bands, | ||
105 | ``gain'' controls how much each band is adjusted. | ||
106 | \item[Advanced Tone Control Settings.] | ||
107 | This submenu allows you to change advanced parameters for each band. | ||
108 | \end{description} | ||
109 | |||
110 | As a general guide, EQ band 1 should be used for low frequencies, EQ bands 2 | ||
111 | to 4 should be used for mids, and EQ band 5 should be used for highs.\\* | ||
112 | |||
113 | \subsection{Advanced Tone Control Settings} | ||
114 | As in the previous menu, the ``gain'' setting controls how much the | ||
115 | loudness of the band is adjusted. In addition the following parameters | ||
116 | can be adjusted: | ||
117 | |||
118 | \begin{description} | ||
119 | \item[Band 1 Frequency.] | ||
120 | The ``frequency'' parameter sets where the shelving starts to take | ||
121 | effect. For example, a cutoff frequency of 80~Hz will adjust only very | ||
122 | low frequencies. A cutoff frequency of 175~Hz, on the other hand, will | ||
123 | adjust a much wider range of bass frequencies. | ||
124 | \item[Bands 2-4 Frequency.] | ||
125 | The ``frequency'' parameter for these bands sets the centre frequency of | ||
126 | the range that is affected by the gain set. | ||
127 | \item[Bands 2-4 Width.] | ||
128 | This parameter sets the width of the range around the centre frequency | ||
129 | that is affected by the tone control. The possible settings are | ||
130 | ``wide'' or ``narrow''. | ||
131 | \item[Band 5 Frequency.] | ||
132 | This works just as for band 1 frequency, except that it affects the | ||
133 | high frequency end of the spectrum instead of the low. | ||
134 | \end{description} | ||
135 | |||
136 | } | ||
76 | 137 | ||
77 | \section{Balance} | 138 | \section{Balance} |
78 | This setting controls the balance between the left and right channels. The | 139 | This setting controls the balance between the left and right channels. The |
@@ -265,15 +326,17 @@ change to customise your listening experience. | |||
265 | \screenshot{configure_rockbox/images/ss-equalizer}{The graphical equalizer}{} | 326 | \screenshot{configure_rockbox/images/ss-equalizer}{The graphical equalizer}{} |
266 | Rockbox features a parametric equalizer (EQ). As the name suggests, a | 327 | Rockbox features a parametric equalizer (EQ). As the name suggests, a |
267 | parametric EQ lets you control several different parameters for each | 328 | parametric EQ lets you control several different parameters for each |
268 | band of the EQ. In some ways the EQ is similar to the \setting{Bass} | 329 | band of the EQ. \nopt{gigabeats}{In some ways the EQ is similar to the |
269 | and \setting{Treble} settings described earlier, but the EQ allows you to | 330 | \setting{Bass} and \setting{Treble} settings described earlier, but the EQ |
270 | control the sound much more carefully.\\ | 331 | allows you to control the sound much more carefully.} \opt{gigabeats}{The EQ |
332 | is similar to the \setting{Tone Controls} described above, but allows more | ||
333 | delicate control.}\\ | ||
271 | 334 | ||
272 | Rockbox's parametric EQ is composed of five different bands: | 335 | Rockbox's parametric EQ is composed of five different bands: |
273 | \begin{description} | 336 | \begin{description} |
274 | \item[Band 0: Low shelf filter.] | 337 | \item[Band 0: Low shelf filter.] |
275 | The low shelf filter boosts or lowers all frequencies below a certain | 338 | The low shelf filter boosts or lowers all frequencies below a certain |
276 | frequency limit, much like what a ``bass'' control found on ordinary | 339 | frequency limit, much as the ``bass'' control found on ordinary |
277 | stereo systems does. | 340 | stereo systems does. |
278 | Adjust the ``cutoff'' frequency parameter to decide where the shelving | 341 | Adjust the ``cutoff'' frequency parameter to decide where the shelving |
279 | starts to take effect. For example, a cutoff frequency of 50~Hz will | 342 | starts to take effect. For example, a cutoff frequency of 50~Hz will |
@@ -301,7 +364,7 @@ change to customise your listening experience. | |||
301 | frequencies. | 364 | frequencies. |
302 | \item[Band 4: High shelf filter.] | 365 | \item[Band 4: High shelf filter.] |
303 | A high shelf filter boosts or lowers all frequencies above a certain | 366 | A high shelf filter boosts or lowers all frequencies above a certain |
304 | frequency limit, much like what a ``treble'' control found on ordinary | 367 | frequency limit, much as the ``treble'' control found on ordinary |
305 | stereo systems does. | 368 | stereo systems does. |
306 | The high shelf filter is adjusted the same way as the low shelf filter, | 369 | The high shelf filter is adjusted the same way as the low shelf filter, |
307 | except that it works on the high end of the frequency spectrum rather | 370 | except that it works on the high end of the frequency spectrum rather |