-<ul>
- <li><kbd class="menu">Linear</kbd> : A simple linear coefficient decrease, and its
-mathematical inverse. A Linear fade starts attentuating quickly
-and then cuts off even more abruptly at lower levels. When used
-as a crossfade, the signals are each -6dB attenuated at the midpoint.
-This is the correct crossfade to use with highly-correlated signals for
-a smooth transition.<br>
- </li>
- <li><kbd class="menu">Constant Power</kbd> : The constant power curve starts fading
-slowly and then cuts off abruptly. When used as a crossfade
-between 2 audio regions, the signals are symetrically attenuated, and
-they each reach -3dB at the midpoint. This is the correct crossfade to
-use when you want to splice audio in the general ( uncorrelated ) case.<br>
- </li>
- <li><kbd class="menu">Symmetric</kbd> : The Symmetric fade starts slowly, then
-attenuates significantly before transitioning to a slower fade-out near
-the end of the fade. When used as a crossfade, the Symmetric
-curve is not mathematically correct like the Equal Power or Linear
-curves, but it provides a slower fade-out at low volumes. This is
-sometimes useful when editing 2 entire music works together so that the
-transition is more gradual.<br>
- </li>
- <li><kbd class="menu">Fast</kbd> : The Fast curve is a linear decibel fade; It sounds
-like a perfectly smooth fader or knob moved to silence. This shape is
-excellent as a general-purpose fade-in. When used as a
-crossfade, the inverse fade curve maintains constant power but is
-therefore non-symmetric; so its use is limited to those cases where the
-user finds it appropriate.</li>
- <li><kbd class="menu">Slow</kbd> : The Slow curve is a modified linear decibel fade.
-The initial curve starts more gradually so that it has a less
-abrupt transition near unity. After that, it sounds like a
-perfectly smooth fader or knob moved to silence. This shape is excellent as
-a general-purpose fade-out. When used as a crossfade, the
-inverse fade curve maintains constant power but is therefore
-non-symmetric; so its use is limited to those cases where the user
-finds it appropriate.<br>
- </li>
-</ul>
-<p>Although these fade shapes serve specific purposes, you might find that
-any of the shapes is usable in your situation. The final decision
-is an artistic choice rather than a <br></p>
-<br>
-<p>These fade curves are developed to provide a range of common uses, and
-are developed with the least possible amount of changes in the "slope"
-of the line. This provides artifact-free crossfades. Some
-DAWs provide complicated fade editors with parametric "spline" controls
-of the fade curves. While it might be interesting to develop a
-fade curve with a faster cutoff, the mathematical difference between
-this and simply shortening the fade is vanishingly small; and the
-amount of effort to shorten the fade is much easier than messing with a
-crossfade editor dialog.<br></p>