manual.lyx

Aqualung is an advanced music player primarily targeted for the GNU/Linux operating system, but als

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A
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B
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C
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left
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A
\begin_inset Formula $\Longleftrightarrow$
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B
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B
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A
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C
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B
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right
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A
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C
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B
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C
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C
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A
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In the bottom right corner there are additional buttons.
 The buttons with the letters display or hide additional windows of the
 program:
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\align center
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FX
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</cell>
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Ladspa Patch Builder
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MS
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Music Store
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PL
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</cell>
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Playlist
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</cell>
</row>
</lyxtabular>

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Note that depending on the skin, these buttons may come with images instead
 of the letters above.
 However, their functionality does not change.
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\begin_layout Standard
The remaining three buttons are to select the playback mode.
 When none of these buttons is depressed, playback goes the normal way.
 The buttons are mutually exclusive, and select track repeat, list repeat
 or shuffle mode.
 I'm sure you can figure out which is which.
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Volume and balance slider tricks:
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\begin_layout Itemize
Shift + any mouse button sets the volume and balance sliders back to 0 dB
 and Center position, respectively.
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Clicking and holding the right mouse button on these sliders shows their
 position in the big time display without altering the value.
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An additional thing to know about the volume control is that it ranges up
 to +6 dB.
 This means you can send a bigger signal to the audio device than in the
 original file.
 With 0 dB corresponding to 100% signal level, +6 dB is almost exactly 200%
 signal level (and 4 times signal power as well).
 This means you can overdrive your output device, and since clipping will
 occur at 100% anyway, it will cause nasty digital distortion much worse
 than simple analog overdrive.
 If you have a track with a reasonably low level, you can go above 0 dB
 with the volume control.
 But today most CD's are mastered to keep the average volume level very
 close to the 0 dB (or 100%) top, and so they will likely distort with as
 little as +1 dB additional gain.
 The moral is: if you want it loud, turn up your external amp.
 You can also consider using RVA if the volume level of your tracks tends
 to vary in a wide range -- see section 
\begin_inset LatexCommand \ref{sub:RVA}

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.
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On a related note, another thing to watch out for is LADSPA plugins (in
 case you use them).
 It is very common that the signal level leaving a plugin is greater than
 the signal level the plugin gets on its input.
 So it is best to leave a few dB's of headroom if you do that.
 A very typical case is boosting some frequency bands a few dB's with an
 EQ plugin.
 You should decrease the overall volume level with as much dB's as the largest
 boost (or even more), or you are risking that the signal will get chopped
 causing bad distortion.
 Alternatively, apply 
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status collapsed

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\backslash
href{http://tap-plugins.sourceforge.net/ladspa/limiter.html}{this limiter plugin}
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 as the last one in the processing chain, but only if you know what you
 are doing.
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Right-clicking almost anywhere in the window will bring up a menu that allows
 access to the `Settings' dialog, the `Skin Chooser', the `JACK Port Setup'
 dialog (present only when running the program with JACK output), and the
 `About' box.
 The latter may be useful to see which features have been compiled into
 the program.
 (If you haven't read 
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\backslash
href{http://aqualung.sourceforge.net/index.php?tab=compiling}{the page about
 compiling}
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 yet: the configuration of the program can be adapted so as not to require
 certain libraries when compiling, and not provide certain features accordingly.)
 
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\begin_layout Subsubsection
Shortcuts for this window
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\align center
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z, Z, y, Y, comma
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jump to previous track
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play
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c, C, space
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e
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v, V, s, S
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stop
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b, B, period
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jump to next track
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left arrow
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jump (seek) backwards in current track
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jump (seek) forward in current track
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backspace