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author | Jeffrey Goode <jeffg7@gmail.com> | 2009-08-26 02:23:46 +0000 |
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committer | Jeffrey Goode <jeffg7@gmail.com> | 2009-08-26 02:23:46 +0000 |
commit | a0341df6d59f69ac05de58d12beb1fc06f6f5ace (patch) | |
tree | 3858b7834cbc7d47dfffce6011f05ef2340476ef /manual/configure_rockbox/sound_settings.tex | |
parent | af967d77d39307d7c9faacd360b117fdaa63f64a (diff) | |
download | rockbox-a0341df6d59f69ac05de58d12beb1fc06f6f5ace.tar.gz rockbox-a0341df6d59f69ac05de58d12beb1fc06f6f5ace.zip |
Adds manual section for limiter preamp
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22515 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'manual/configure_rockbox/sound_settings.tex')
-rw-r--r-- | manual/configure_rockbox/sound_settings.tex | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/manual/configure_rockbox/sound_settings.tex b/manual/configure_rockbox/sound_settings.tex index 6a7d423113..c24b38a891 100644 --- a/manual/configure_rockbox/sound_settings.tex +++ b/manual/configure_rockbox/sound_settings.tex | |||
@@ -441,4 +441,22 @@ Enabling \setting{Timestretch} allows you to change the playback speed without | |||
441 | it affecting the pitch of the recording. After enabling this feature and | 441 | it affecting the pitch of the recording. After enabling this feature and |
442 | rebooting, you can access this via the \setting{Pitch Screen}. This function is | 442 | rebooting, you can access this via the \setting{Pitch Screen}. This function is |
443 | intended for speech playback and may significantly dilute your listening | 443 | intended for speech playback and may significantly dilute your listening |
444 | experience with more complex audio.} | 444 | experience with more complex audio. |
445 | } | ||
446 | |||
447 | \opt{swcodec}{ | ||
448 | \section{Limiter Preamp} | ||
449 | The limiter preamp raises the gain of the audio by the selected amount. The associated | ||
450 | limiter function works on the resulting louder signal to reduce any peaks to below the | ||
451 | maximum level. The default selection of 0dB turns all limiter processing off. | ||
452 | |||
453 | The limiter has the effect of reducing dynamic range by amplifying quiet sections while | ||
454 | loud sections are kept just under maximum gain. This allows listening to the quiet sections | ||
455 | of dynamic material in noisy environments while preventing sudden loud sections from being | ||
456 | overbearing. | ||
457 | |||
458 | Think of this as a smart volume control. The preamp in effect turns up the volume by the | ||
459 | amount you select so that you can hear quiet passages. But it senses when a loud section is | ||
460 | about to play and quickly and smoothly lowers the volume as necessary to keep the audio | ||
461 | under the maximum limit. As the loud section fades, the volume is turned back up. | ||
462 | } \ No newline at end of file | ||