Lenco LS-50 Manual Del Usuario página 20

Nyquist Prompt - for advanced users only. Allows you to express arbitrary transformations using
a powerful functional programming language. See the Nyquist section of the Audacity website for
more information.
Phaser - the name "Phaser" comes from "Phase Shifter", because it works by combining phase-
shifted signals with the original signal. The movement of the phase-shifted signals is controlled
using a Low Frequency Oscillator (LFO).
Repeat - repeats the selection a certain number of times. This operation is quite fast and space-
efficient, so it is practical to use it to create nearly-infinite loops.
Reverse - This effect reverses the selected audio temporally; after the effect the end of the audio
will be heard first and the beginning last.
Wahwah - uses a moving bandpass filter to create its sound. A low frequency oscillator (LFO) is
used to control the movement of the filter throughout the frequency spectrum. Adjusts the phase
of the left and right channels when given a stereo selection, so that the effect seems to travel
across the speakers.
Plugins 1 to 15 ... etc. These submenus contain any VST, Ladspa, or Nyquist plug-ins loaded by
audacity. It is possible for a poorly written plug-in to crash Audacity, so always save your work
before using a plug-in effect.
Analyze Menu
Plot Spectrum - To use this feature, first select a region of audio from a single track, then select
"Plot Spectrum". It opens up a window that displays the Power Spectrum of the audio over that
region, calculated using the Fast Fourier Transform. The graph represents how much energy is in
each frequency. As you move the mouse over the display, it shows you the nearest peak frequency.
This window can also display other common functions that are calculated using the Fast Fourier
Transform, including three versions of the Autocorrelation function. The Enhanced
Autocorrelation function is very good at identifying the pitch of a note.
The Analyze menu is intended for effects and plug-in effects that do not modify the audio, but
simply open a dialog with some descriptive information. Audacity also supports Analyze
commands that create annotations in a Label Track.
Help Menu
About Audacity - displays the version number and credits. If you compiled Audacity yourself,
check here to verify which optional modules were successfully compiled in.
20