pass through the fader itself. Digital Digital faders are also referred to as virtual faders, since they can be viewed on the screen of a digital audio workstation. Modern high end digital mixers often feature "flying faders", faders with piezo-electric actuators attached; such faders can be multi-use and will jump to the correct position for a selected function or saved setting. Flying faders can be automated, so that when a timecode is presented to the equipment, the fader will move according to a previously performed path. Also called an automated fader, as it recalls the movement of the channel faders in time. A full-function automation system will continuously scan the console, many times per second, in order to incorporate new settings. While this scan is in progress, the stored representation of the previous scan will be compared to that of the fader's current position. If the fader's position has changed, the new position will be identified, thus resulting in a spurt of data. The console's computer will update the console's controls on playback. This will be done from memory at the same speed. The advantage of working with mix automation is that only one engineer can perform the job with minimal effort; it can be set up or recorded beforehand to make it even simpler. An example of this is when Ken Hamman installed linear faders that made it possible for him to alter several channels with one hand while mixing, thus he assumed an interactive role in the process of recording. This type of fader level adjustment is also called ‘riding’ the fader. Types Many DJ equipment manufacturers offer different mixers for different purposes, with different fader styles, e.g., "scratching", beatmixing, and cut mixing. High-priced mixers often have crossfade curve switches allowing the DJ to select the type of crossfade necessary. Experienced DJs are also able to crossfade between tracks using the channel faders. Pre-fader, post-fader On a mixer with auxiliary send mixes, the send mixes are configured pre-fader or post-fader. If a send mix is configured pre-fader, then changes to the main channel strip fader does not affect the send mix. In live sound reinforcement, this is useful for stage monitor mixes where changes in the Front of House channel levels would distract the musicians. In recording and post production, configuring a send to be pre-fader allows the amount of audio sent to the aux bus to remain