Package MSP

degrade~

Signal quality reducer

Description

degrade~ takes any given signal and reduces the sampling rate and bit-depth as specified/desired.

Arguments

resampling-frequency-ratio[float]
optional

The first argument sets the resampling frequency ratio, as described above. If this argument is not supplied, the default value is 1.0.

number-of-quantization-bits[int]
optional

The second argument sets the number of bits used to quantize the input signal. If this argument is not supplied, the default value is 24.

Attributes

Common Box Attributes

Below is a list of attributes shared by all objects. If you want to change one of these attributes for an object based on the object box, you need to place the word sendbox in front of the attribute name, or use the object's Inspector.

annotation[symbol]

Sets the text that will be displayed in the Clue window when the user moves the mouse over the object.

background[int]: 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]: 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]: 0

Toggles whether an object ignores mouse clicks in a locked patcher.

jspainterfile[symbol]

You can override the default appearance of a user interface object by assigning a JavaScript file with code for painting the object. The file must be in the search path.

patching_rect[4 floats]: 0. 0. 100. 0.

Sets the position and size of the object in the patcher window.

position[2 floats]
write-only

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]: 0

Sets whether an object belongs to the patcher's presentation.

presentation_rect[4 floats]: 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]
write-only

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]
write-only

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[4 floats]

Sets the color for the object's text in RGBA format.

textjustification[int]

Sets the justification for the object's text. 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

In right inlet: The number of bits used to quantize the input signal. This value must be in the range 1-52. Fewer bits mean lower signal quality.

Arguments:
  • number-of-quantization-bits [int]

float

In middle inlet: The ratio of frequency at which the input signal is resampled, effectively reducing its sampling rate. This ratio is the resampling rate divided by the system sampling rate. For example, if MSP"s current sampling rate is 44100 Hz, and the ratio is 0.75, the effective sampling rate of the output signal will be 33075 Hz.

Arguments:
  • resampling-frequency-ratio [float]

signal

In left inlet: The signal to be degraded.

Output

signal

The output signal is the input signal after being resampled and quantized. Note that this object deliberately does not use any interpolation when resampling, nor any dithering when quantizing. It is intended for creating "low-fi" effects.

Note: Use caution when listening to the output of this object. Quantizing to a small number of bits can create very loud, noisy signals.

See Also

Name Description
downsamp~ Downsample a signal
round~ Round an input signal value