normalize~
MSP Reference
Open Help

normalize~

Scale on the basis of maximum amplitude

Description

normalize~ performs real-time normalization of its input by multiplying each input sample value by a scaling factor - computed as the maximum output value (sent either as a signal or a float in the right inlet) over the maximum signal input value received thus far.

Examples

When precise scaling factor varies or is unknown, normalize~ sets peak amplitude

Discussion

You can change the maximum input value with the reset message or with a float in the left input. If no argument follows "reset" the new maximum input value (and the initial maximum input value) is 0.000001.

Arguments

initial-maximum-output-amplitude [float]

Optional

The initial maximum output amplitude. The default is 1.

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]

g/s(set)

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]

g/s(set)

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]

g/s(set)

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

int

Arguments

maximum-output-amplitude [int]
Converted to float .

float

Arguments

maximum-output-amplitude [float]
In right inlet: The maximum output amplitude may be sent as a float instead of a signal . If a signal is connected to the right inlet, a float received in the right inlet is ignored.

reset

Arguments

maximum-input-amplitude [float]
In left inlet: The word reset , followed by a number, resets the maximum input amplitude to the number. If no number follows reset , or if the number is 0, the maximum input amplitude is set to 0.000001.

signal

In left inlet: The input signal is normalized -- scaled so that its peak amplitude is equal to a specified maximum.

In right inlet: The maximum output amplitude; an over-all scaling of the output.

Output

signal

The input signal is scaled by the maximum output amplitude divided by the maximum input amplitude.

See Also

Name Description
*~ Multiply two signals
MSP Delay Tutorial 2: Delay Lines with Feedback MSP Delay Tutorial 2: Delay Lines with Feedback