diff options
Diffstat (limited to 'manual/configure_rockbox/sound_settings.tex')
-rw-r--r-- | manual/configure_rockbox/sound_settings.tex | 70 |
1 files changed, 35 insertions, 35 deletions
diff --git a/manual/configure_rockbox/sound_settings.tex b/manual/configure_rockbox/sound_settings.tex index 13577b2db1..467a90c582 100644 --- a/manual/configure_rockbox/sound_settings.tex +++ b/manual/configure_rockbox/sound_settings.tex | |||
@@ -7,40 +7,40 @@ change to customise your listening experience. | |||
7 | \section{\label{ref:volume}Volume} | 7 | \section{\label{ref:volume}Volume} |
8 | This setting adjusts the volume of your music. Like most professional | 8 | This setting adjusts the volume of your music. Like most professional |
9 | audio gear and many consumer audio products, Rockbox uses a decibel scale | 9 | audio gear and many consumer audio products, Rockbox uses a decibel scale |
10 | where 0 dB is a reference that indicates the maximum volume that the \dap{} | 10 | where 0~dB is a reference that indicates the maximum volume that the \dap{} |
11 | can produce without possible distortion (clipping). All values lower than | 11 | can produce without possible distortion (clipping). All values lower than |
12 | this reference will be negative and yield a progressively softer volume. | 12 | this reference will be negative and yield a progressively softer volume. |
13 | \opt{player,recorder,recorderv2fm,ondio,x5,m5,ipodnano,ipodnano2g,ipodvideo, | 13 | \opt{player,recorder,recorderv2fm,ondio,x5,m5,ipodnano,ipodnano2g,ipodvideo, |
14 | ipodcolor,ipod1g2g,h10,h10_5gb,sansa,sansaAMS,gigabeats,gigabeatf}{ | 14 | ipodcolor,ipod1g2g,h10,h10_5gb,sansa,sansaAMS,gigabeats,gigabeatf}{ |
15 | Values higher than 0 dB are available and can be used to raise the | 15 | Values higher than 0~dB are available and can be used to raise the |
16 | volume more than would otherwise be possible. These volume levels will | 16 | volume more than would otherwise be possible. These volume levels will |
17 | ordinarily lead to distorted sound, but might work nicely for music that has | 17 | ordinarily lead to distorted sound, but might work nicely for music that has |
18 | an otherwise low volume level.} | 18 | an otherwise low volume level.} |
19 | The volume can be adjusted from a | 19 | The volume can be adjusted from a |
20 | \opt{player}{minimum of -78 dB to a maximum of +18 dB.}% | 20 | \opt{player}{minimum of -78~dB to a maximum of +18~dB.}% |
21 | \opt{recorder,recorderv2fm,ondio}{minimum of -100 dB to a maximum of +12 dB.}% | 21 | \opt{recorder,recorderv2fm,ondio}{minimum of -100~dB to a maximum of +12~dB.}% |
22 | \opt{h100,h300}{minimum of -84 dB to a maximum of 0 dB.}% | 22 | \opt{h100,h300}{minimum of -84~dB to a maximum of 0~dB.}% |
23 | \opt{x5,m5,ipod3g,ipod4g,gigabeatf,mrobe100}{minimum of -73 dB to a maximum of +6 dB.}% | 23 | \opt{x5,m5,ipod3g,ipod4g,gigabeatf,mrobe100}{minimum of -73~dB to a maximum of +6~dB.}% |
24 | \opt{ipodnano}{minimum of -72 dB to a maximum of +6 dB.}% | 24 | \opt{ipodnano}{minimum of -72~dB to a maximum of +6~dB.}% |
25 | \opt{ipodvideo}{minimum of -89 dB to a maximum of +6 dB.}% | 25 | \opt{ipodvideo}{minimum of -89~dB to a maximum of +6~dB.}% |
26 | \opt{ipodnano2g,ipodcolor,ipod1g2g,h10,h10_5gb,sansa,sansaAMS}{minimum of | 26 | \opt{ipodnano2g,ipodcolor,ipod1g2g,h10,h10_5gb,sansa,sansaAMS}{minimum of |
27 | -74 dB to a maximum of +6 dB.}% | 27 | -74~dB to a maximum of +6~dB.}% |
28 | \opt{gigabeats}{minimum of -90 dB to a maximum of +6 dB.}% | 28 | \opt{gigabeats}{minimum of -90~dB to a maximum of +6~dB.}% |
29 | \opt{gigabeatf}{minimum of -74 dB to a maximum of +6 dB.}% | 29 | \opt{gigabeatf}{minimum of -74~dB to a maximum of +6~dB.}% |
30 | \opt{ipodvideo}{\\Remark: Lowering the volume below -57 dB will also affect the line-out | 30 | \opt{ipodvideo}{\\Remark: Lowering the volume below -57~dB will also affect the line-out |
31 | and the recording gain.} | 31 | and the recording gain.} |
32 | 32 | ||
33 | \section{Bass} | 33 | \section{Bass} |
34 | This setting emphasises | 34 | This setting emphasises |
35 | \nopt{h100,h300}{or suppresses} | 35 | \nopt{h100,h300}{or suppresses} |
36 | the lower (bass) frequencies in the sound. A value of 0 dB means that bass | 36 | the lower (bass) frequencies in the sound. A value of 0~dB means that bass |
37 | sounds are unaltered (flat response). | 37 | sounds are unaltered (flat response). |
38 | \opt{masd}{The minimum setting is -15 dB and the maximum is 15 dB.}% | 38 | \opt{masd}{The minimum setting is -15~dB and the maximum is 15~dB.}% |
39 | \opt{masf}{The minimum setting is -12 dB and the maximum is 12 dB.}% | 39 | \opt{masf}{The minimum setting is -12~dB and the maximum is 12~dB.}% |
40 | \opt{h100,h300}{The minimum setting is 0 dB and the maximum is 24 dB.}% | 40 | \opt{h100,h300}{The minimum setting is 0~dB and the maximum is 24~dB.}% |
41 | \opt{ipodnano,ipodnano2g,ipodcolor}{The minimum setting is -6 dB and the maximum is 9 dB.}% | 41 | \opt{ipodnano,ipodnano2g,ipodcolor}{The minimum setting is -6~dB and the maximum is 9~dB.}% |
42 | \opt{ipodvideo}{The minimum setting is -12 dB and the maximum is 12 dB.}% | 42 | \opt{ipodvideo}{The minimum setting is -12~dB and the maximum is 12~dB.}% |
43 | \opt{x5,sansa,sansaAMS,h10,h10_5gb}{The minimum setting is -24 dB and the maximum is 24 dB.} | 43 | \opt{x5,sansa,sansaAMS,h10,h10_5gb}{The minimum setting is -24~dB and the maximum is 24~dB.} |
44 | 44 | ||
45 | \opt{ipodvideo}{ | 45 | \opt{ipodvideo}{ |
46 | \section{Bass Cutoff} | 46 | \section{Bass Cutoff} |
@@ -53,14 +53,14 @@ change to customise your listening experience. | |||
53 | \section{Treble} | 53 | \section{Treble} |
54 | This setting emphasises | 54 | This setting emphasises |
55 | \nopt{h100,h300}{or suppresses} | 55 | \nopt{h100,h300}{or suppresses} |
56 | the higher (treble) frequencies in the sound. A value of 0 dB means that | 56 | the higher (treble) frequencies in the sound. A value of 0~dB means that |
57 | treble sounds are unaltered (flat response). | 57 | treble sounds are unaltered (flat response). |
58 | \opt{masd}{The minimum setting is -15 dB and the maximum is 15 dB.}% | 58 | \opt{masd}{The minimum setting is -15~dB and the maximum is 15~dB.}% |
59 | \opt{masf}{The minimum setting is -12 dB and the maximum is 12 dB.}% | 59 | \opt{masf}{The minimum setting is -12~dB and the maximum is 12~dB.}% |
60 | \opt{h100,h300}{The minimum setting is 0 dB and the maximum is 6 dB.}% | 60 | \opt{h100,h300}{The minimum setting is 0~dB and the maximum is 6~dB.}% |
61 | \opt{ipodnano,ipodnano2g,ipodcolor}{The minimum setting is -6 dB and the maximum is 9 dB.}% | 61 | \opt{ipodnano,ipodnano2g,ipodcolor}{The minimum setting is -6~dB and the maximum is 9~dB.}% |
62 | \opt{ipodvideo}{The minimum setting is -12 dB and the maximum is 12 dB.}% | 62 | \opt{ipodvideo}{The minimum setting is -12~dB and the maximum is 12~dB.}% |
63 | \opt{x5,sansa,sansaAMS,h10,h10_5gb}{The minimum setting is -24 dB and the maximum is 24 dB.} | 63 | \opt{x5,sansa,sansaAMS,h10,h10_5gb}{The minimum setting is -24~dB and the maximum is 24~dB.} |
64 | 64 | ||
65 | \opt{ipodvideo}{ | 65 | \opt{ipodvideo}{ |
66 | \section{Treble Cutoff} | 66 | \section{Treble Cutoff} |
@@ -138,7 +138,7 @@ change to customise your listening experience. | |||
138 | Auto volume is a feature that automatically lowers the volume on loud parts, | 138 | Auto volume is a feature that automatically lowers the volume on loud parts, |
139 | and then slowly restores the volume to the previous level over a time | 139 | and then slowly restores the volume to the previous level over a time |
140 | interval. This setting allows this time interval to be configured. Short | 140 | interval. This setting allows this time interval to be configured. Short |
141 | values like 20 ms are useful for ensuring a constant volume for in-car use and | 141 | values like 20~ms are useful for ensuring a constant volume for in-car use and |
142 | other applications where background noise makes a constant loudness desirable. | 142 | other applications where background noise makes a constant loudness desirable. |
143 | A longer timeout means that the change in volume back to the previous level | 143 | A longer timeout means that the change in volume back to the previous level |
144 | will be smoother, so there will be fewer sharp changes in volume level. | 144 | will be smoother, so there will be fewer sharp changes in volume level. |
@@ -149,7 +149,7 @@ change to customise your listening experience. | |||
149 | This setting changes the threshold at which bass frequencies are affected by | 149 | This setting changes the threshold at which bass frequencies are affected by |
150 | the \setting{Loudness} setting, making the sound of drums and bass guitar | 150 | the \setting{Loudness} setting, making the sound of drums and bass guitar |
151 | louder in comparison to the rest of the sound. This setting only has an | 151 | louder in comparison to the rest of the sound. This setting only has an |
152 | effect if \setting{Loudness} is set to a value larger than 0 dB. | 152 | effect if \setting{Loudness} is set to a value larger than 0~dB. |
153 | } | 153 | } |
154 | 154 | ||
155 | \opt{masf}{ | 155 | \opt{masf}{ |
@@ -199,10 +199,10 @@ change to customise your listening experience. | |||
199 | % | 199 | % |
200 | \begin{table}[h!] | 200 | \begin{table}[h!] |
201 | \begin{rbtabular}{0.5\textwidth}{Xc}{Setting & Value}{}{} | 201 | \begin{rbtabular}{0.5\textwidth}{Xc}{Setting & Value}{}{} |
202 | MDB Strength & 50 dB \\ | 202 | MDB Strength & 50~dB \\ |
203 | MDB Harmonics & 48\% \\ | 203 | MDB Harmonics & 48\% \\ |
204 | MDB Centre Frequency & 60 Hz \\ | 204 | MDB Centre Frequency & 60~Hz \\ |
205 | MDB Shape & 90 Hz \\ | 205 | MDB Shape & 90~Hz \\ |
206 | \end{rbtabular} | 206 | \end{rbtabular} |
207 | \end{table} | 207 | \end{table} |
208 | 208 | ||
@@ -280,8 +280,8 @@ change to customise your listening experience. | |||
280 | frequency limit, much like what a ``bass'' control found on ordinary | 280 | frequency limit, much like what a ``bass'' control found on ordinary |
281 | stereo systems does. | 281 | stereo systems does. |
282 | Adjust the ``cutoff'' frequency parameter to decide where the shelving | 282 | Adjust the ``cutoff'' frequency parameter to decide where the shelving |
283 | starts to take effect. For example, a cutoff frequency of 50 Hz will | 283 | starts to take effect. For example, a cutoff frequency of 50~Hz will |
284 | adjust only very low frequencies. A cutoff frequency of 200 Hz, on the | 284 | adjust only very low frequencies. A cutoff frequency of 200~Hz, on the |
285 | other hand, will adjust a much wider range of bass frequencies. | 285 | other hand, will adjust a much wider range of bass frequencies. |
286 | The ``gain'' parameter controls how much the loudness of the band is | 286 | The ``gain'' parameter controls how much the loudness of the band is |
287 | adjusted. Positive numbers make the EQ band louder, while negative | 287 | adjusted. Positive numbers make the EQ band louder, while negative |
@@ -432,7 +432,7 @@ time-varying noise heard when not performing dithering. | |||
432 | 432 | ||
433 | After dithering, noise shaping is performed. This basically just pushes the | 433 | After dithering, noise shaping is performed. This basically just pushes the |
434 | dithering noise to the parts of the frequency spectrum humans cannot hear so | 434 | dithering noise to the parts of the frequency spectrum humans cannot hear so |
435 | easily. In Rockbox' case, some of the noise is pushed up to above 10 kHz. | 435 | easily. In Rockbox' case, some of the noise is pushed up to above 10~kHz. |
436 | 436 | ||
437 | This setting will be put to its best use when listening to dynamic music with | 437 | This setting will be put to its best use when listening to dynamic music with |
438 | frequently occuring quiet parts, classical music being a typical example. It is | 438 | frequently occuring quiet parts, classical music being a typical example. It is |
@@ -496,5 +496,5 @@ compressed. Once the compressor determines that compression is necessary, | |||
496 | the input signal is reduced appropriately, but the gain isn't allowed to | 496 | the input signal is reduced appropriately, but the gain isn't allowed to |
497 | immediately return to normal levels. This is necessary to reduce artifacts | 497 | immediately return to normal levels. This is necessary to reduce artifacts |
498 | such as "pumping." Instead, the gain is allowed to return to normal at the | 498 | such as "pumping." Instead, the gain is allowed to return to normal at the |
499 | chosen rate. Release Time is the time for the gain to recover by 10 dB. | 499 | chosen rate. Release Time is the time for the gain to recover by 10~dB. |
500 | } | 500 | } |