fftout~
Output for a patcher loaded by pfft~
Description
The fftout~ object provides an signal output to a pfft~ object.
Examples

Discussion
The fftout~ object performs an inverse Fast Fourier Transform and applies a windowing function (an envelope), allowing the pfft~ object to manage the overlap-add of the output signal windows.
Arguments
outlet-assignment [int]
Determines the outlet number in the pfft~ which will receive the output of the fftout~ object. Outlet assignments start at 1 for the leftmost outlet of pfft~. Multiple fftout~ objects will typically have different outlet numbers.
window-envelope-function [symbol]
Tells fftout~ which window envelope function to use when overlapping fft's on the input signal. The options are square (i.e. no window envelope), hanning (the default), and hamming . If the argument nofft is used, then the fftout~ will echo its input signal to its output without performing a Fast Fourier transform. This allows you to output raw control signals from the pfft~ to the parent patcher. Note that when the nofft option is used, overlap-adding is still being performed to create the output signal.
Attributes
Common Box Attributes
annotation [symbol]
Sets the text that will be displayed in the Clue window when the user moves the mouse over the object.
background [int] (default: 0)
Adds or removes the object from the patcher's background layer. background 1 adds the object to the background layer, background 0 removes it. Objects in the background layer are shown behind all objects in the default foreground layer.
color [4 floats]
Sets the color for the object box outline.
fontface [int]
Sets the type style used by the object. The options are:
plain
bold
italic
bold italic
Possible values:
0 = 'regular'
1 = 'bold'
2 = 'italic'
3 = 'bold italic'
fontname [symbol]
Sets the object's font.
fontsize [float]
Sets the object's font size (in points).
Possible values:
'8'
'9'
'10'
'11'
'12'
'13'
'14'
'16'
'18'
'20'
'24'
'30'
'36'
'48'
'64'
'72'
hidden [int] (default: 0)
Toggles whether an object is hidden when the patcher is locked.
hint [symbol]
Sets the text that will be displayed in as a pop-up hint when the user moves the mouse over the object in a locked patcher.
ignoreclick [int] (default: 0)
Toggles whether an object ignores mouse clicks in a locked patcher.
patching_rect [4 floats] (default: 0. 0. 100. 0.)
Sets the position and size of the object in the patcher window.
position [2 floats]
Sets the object's x and y position in both patching and presentation modes (if the object belongs to its patcher's presentation), leaving its size unchanged.
presentation [int] (default: 0)
Sets whether an object belongs to the patcher's presentation.
presentation_rect [4 floats] (default: 0. 0. 0. 0.)
Sets the x and y position and width and height of the object in the patcher's presentation, leaving its patching position unchanged.
rect [4 floats]
Sets the x and y position and width and height of the object in both patching and presentation modes (if the object belongs to its patcher's presentation).
size [2 floats]
Sets the object's width and height in both patching and presentation modes (if the object belongs to its patcher's presentation), leaving its position unchanged.
textcolor [float]
Sets the color for the object's text in RGBA format.
textjustification [int]
Text Justification
Possible values:
0 = 'left'
1 = 'center'
2 = 'right'
varname [symbol]
Sets the patcher's scripting name, which can be used to address the object by name in pattr, scripting messages to thispatcher, and the js object.
Messages
signal
In right inlet: The imaginary part of a signal that will be inverse-transformed back into the time domain.
Note that the real and imaginary inlets of fftout~ expect only the first half of the spectrum, as output by fftin~. This half-spectrum is called a spectral frame in pfft~ terminology.
Output
See Also
Name | Description |
---|---|
cartopol | Convert cartesian to polar coordinates |
cartopol~ | Signal Cartesian to Polar coordinate conversion |
fft~ | Fast Fourier transform |
fftin~ | Input for a patcher loaded by pfft~ |
fftinfo~ | Report information about a patcher loaded by pfft~ |
frameaccum~ | Compute "running phase" of successive phase deviation frames |
framedelta~ | Compute phase deviation between successive FFT frames |
ifft~ | Inverse fast Fourier transform |
out | Message output for a patcher loaded by poly~ or pfft~ |
pfft~ | Spectral processing manager for patchers |
poltocar | Convert polar to cartesian coordinates |
poltocar~ | Signal Polar to Cartesian coordinate conversion |
vectral~ | Vector-based envelope follower |
MSP Analysis Tutorial 3: Using the FFT | MSP Analysis Tutorial 3: Using the FFT |
MSP Analysis Tutorial 4: Signal Processing with pfft~ | MSP Analysis Tutorial 4: Signal Processing with pfft~ |