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authorSolomon Peachy <pizza@shaftnet.org>2020-07-26 08:56:22 -0400
committerSolomon Peachy <pizza@shaftnet.org>2020-07-27 13:10:27 -0400
commitc81e1e1bf1addf05af62d14047fad3a3cfb4c76c (patch)
tree7c2dc80dec411e1d961803e8b999921e8e05e56f /manual/configure_rockbox/sound_settings.tex
parentaee6459d7fee84074dc3f0a12e7b1ba6132ba9bd (diff)
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manual: Strip out a few more archos-specific chunks
Change-Id: If875fc86888491d8b26d9090ae3ae778dc32aa31
Diffstat (limited to 'manual/configure_rockbox/sound_settings.tex')
-rw-r--r--manual/configure_rockbox/sound_settings.tex91
1 files changed, 0 insertions, 91 deletions
diff --git a/manual/configure_rockbox/sound_settings.tex b/manual/configure_rockbox/sound_settings.tex
index fd5efa189b..c87d52322e 100644
--- a/manual/configure_rockbox/sound_settings.tex
+++ b/manual/configure_rockbox/sound_settings.tex
@@ -38,8 +38,6 @@ change to customise your listening experience.
\nopt{iriverh100,iriverh300}{or suppresses}
the lower (bass) frequencies in the sound. A value of 0~dB means that bass
sounds are unaltered (flat response).
- \opt{masd}{The minimum setting is -15~dB and the maximum is 15~dB.}%
- \opt{masf}{The minimum setting is -12~dB and the maximum is 12~dB.}%
\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.}%
@@ -66,8 +64,6 @@ change to customise your listening experience.
\nopt{iriverh100,iriverh300}{or suppresses}
the higher (treble) frequencies in the sound. A value of 0~dB means that
treble sounds are unaltered (flat response).
- \opt{masd}{The minimum setting is -15~dB and the maximum is 15~dB.}%
- \opt{masf}{The minimum setting is -12~dB and the maximum is 12~dB.}%
\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.}%
@@ -201,93 +197,6 @@ change to customise your listening experience.
}%
}
-\opt{masf}{
- \section{Loudness}
- When listening at low volumes, the ear will tend to make bass and treble
- frequencies sound quieter than they really are. To compensate for this,
- \setting{Loudness} is an effect which emphasises bass and treble in a fashion
- suited to the human ear. Frequencies in the vocal range are unaffected, since
- the human ear picks these up very easily at any sound level.
- It is of course also possible to use this effect at higher volumes for
- enhanced bass and treble.
-}
-
-\opt{masf}{
-\section{Auto Volume}
- Auto volume is a feature that automatically lowers the volume on loud parts,
- and then slowly restores the volume to the previous level over a time
- interval. This setting allows this time interval to be configured. Short
- values like 20~ms are useful for ensuring a constant volume for in-car use and
- other applications where background noise makes a constant loudness desirable.
- A longer timeout means that the change in volume back to the previous level
- will be smoother, so there will be fewer sharp changes in volume level.
-}
-
-\opt{masf}{
-\section{Super Bass}
- This setting changes the threshold at which bass frequencies are affected by
- the \setting{Loudness} setting, making the sound of drums and bass guitar
- louder in comparison to the rest of the sound. This setting only has an
- effect if \setting{Loudness} is set to a value larger than 0~dB.
-}
-
-\opt{masf}{
-\section{MDB {}-- Micronas Dynamic Bass}
- The rest of the parameters in this menu relate to the Micronas Dynamic
- Bass (MDB) function. MDB is designed to enable the user to hear bass
- notes that the headphones and/or speakers are not capable of reproducing.
- Every tone has a fundamental frequency (the ``main tone'') and also several
- harmonics, which are related to that tone. The human brain has a mechanism
- whereby it can actually infer the presence of bass notes from the higher
- harmonics that they would generate.
-
- The practical upshot of this is that MDB produces a more authentic sounding
- bass by tricking the brain into believing it is hearing tones that the
- headphones or speakers are not capable of reproducing.
-
- The MDB parameters are as follows:
- %
- \begin{description}
- \item[MDB enable.]
- This turns the MDB feature on or off. For many users this will be the
- only setting they need, since Rockbox picks sensible defaults for the
- other parameters. MDB is turned off by default.
- \item[MDB strength.]
- How loud the harmonics generated by MDB will be.
- \item[MDB Harmonics.]
- The percentage of the low notes that is converted into harmonics.
- If low notes are causing speaker distortion, this can be set to 100\%
- to eliminate the fundamental completely and only produce harmonics in the
- signal. If set to 0\% this is the same as turning the MDB feature off.
- \item[MDB Centre Frequency.]
- The cutoff frequency of your headphones or speakers. This is usually
- given in the specification for the headphones/speakers.
- \item[MDB shape.]
- It is recommended that this parameter be set to 1.5 times the centre frequency.
-
- This is the frequency up to which harmonics are generated. Some of the
- lower fundamentals near the cut{}-off range will have their lower
- harmonics cut, since they will be below the range of the speakers.
- Fundamentals between the cut{}-off frequency and the lower frequency
- will have their harmonics proportionally boosted to compensate and restore
- the `loudness' of these notes.
-
- For most users, the defaults should provide an improvement in sound
- quality and can be safely left as they are. For reference, the defaults
- Rockbox uses are:
- %
- \begin{table}[h!]
- \begin{rbtabular}{0.5\textwidth}{Xc}{Setting & Value}{}{}
- MDB Strength & 50~dB \\
- MDB Harmonics & 48\% \\
- MDB Centre Frequency & 60~Hz \\
- MDB Shape & 90~Hz \\
- \end{rbtabular}
- \end{table}
-
- \end{description}
-}
-
\opt{swcodec}{
\section{Crossfeed}
Crossfeed attempts to make the experience of listening to music on