/usr/share/doc/calf/Equalizer 5 Band.html is in calf-plugins 0.0.19+git20131202-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 | <html>
<head>
<link type="text/css" rel="stylesheet" href="scripts/thickbox.css" />
<link type="text/css" rel="stylesheet" href="scripts/style.css" />
<script language="javascript" type="text/javascript" src="scripts/jquery.js"></script>
<script language="javascript" type="text/javascript" src="scripts/thickbox.js"></script>
<script language="javascript" type="text/javascript" src="scripts/manual.js"></script>
</head>
<body>
<div class="wrapper">
<h1>Equalizer 5 Band</h1>
<a href="images/Calf - Equalizer 5 Band.png" title="Calf - Equalizer 5 Band" class="thickbox"><img class="thumbnail" src="images/Calf - Equalizer 5 Band.png" /></a>
<h2>Functionality</h2>
<p>
Equalizers are possibly the most used signal processors in a studio environment. With an equalizer you can <strong>alter the frequency spectrum of an instrument</strong> with different types of filters. Equalizers are used to <strong>increase or decrease the volume of different frequency ranges</strong>. You may add some presence to your track, cut unneccessary sub frequencies, make "room" for mixing a signal with others without producing indifferent mud, brighten dull recordings or "fix" an unsatisfying but not reproducable recording - Equalizers are the <strong>swiss army knife</strong> in audio production.
<br/><br/>
<strong>The 5 band equalizer</strong> is the perfect channel strip solution. A high- and lowshelf and three parametric peak filters give you enough flexibility for standard manipulations.
</p>
<h2>Filters</h2>
<p>
<strong>The Calf Equalizer 5 Band consists of two different types of filters:</strong>
</p>
<ul>
<li><strong>Shelving filters</strong>: This type of filter got it's name from it's characteristics - it looks like the shelv of a cow. A highshelf filter increases or decreases all frequencies above the center frequency equally, the lowpass does vice versa.</li>
<li><strong>Peak filters</strong>: Peak or bell filters increase or decrease the frequencies around the center frequency. A high quality setting of this filter results in a needle while lower quality settings produce a wider bell.</li>
</ul>
<p>
Calf Equalizers are designed to give you the most control over your frequency response. The peak filters can add or subtract <strong>up to 36dB at a really high Q</strong> to your signal. This can result in a self resonating tone in comparison to a nearly complete removal of a single narrow band.
</p>
<h2>Tips</h2>
<p>
<strong>Please refer to the <a href="Equalizer12band.html" title="Equalizer 12 Band">Equalizer 12 Band manual</a> for more information on equalization.</strong>
</p>
<h2>Controls</h2>
<ul>
<li><strong>Input L/R:</strong> The level after the input knob. The LED's flash on levels above 0dB</li>
<li><strong>Bypass:</strong> Don't process anything, just bypass the signal</li>
<li><strong>Input knob:</strong> Control the input level before the signal is processed</li>
<li><strong>Output L/R:</strong> The level after processing and after the output knob. The LED's flash on levels above 0dB</li>
<li><strong>Output knob:</strong> Control the output of the plugin - clipping could destroy your signal</li>
<li><strong>Low/Highshelf Frequency:</strong> The center frequency of the filter</li>
<li><strong>Low/Highshelf Level:</strong> The amount in dB's the center frequency is increased or decreased</li>
<li><strong>Low/Highshelf Active:</strong> Power on this filter and select an operating mode. Inactive Filters don't use any CPU</li>
<li><strong>Peak Frequency:</strong> The center frequency of the filter</li>
<li><strong>Peak Level:</strong> The amount in dB's the center frequency is increased or decreased</li>
<li><strong>Peak Q:</strong> The quality of the filter. Higher values create needles, lower ones bell filters</li>
<li><strong>Peak Active:</strong> Power on this filter and select an operating mode. Inactive Filters don't use any CPU</li>
</ul>
</div>
</body>
</html>
|