Array Expand Compress

Resizes an array by expanding or compressing it using interpolation. The output size equals factor x input size.

For example, a 512-element input with factor = 0.5 produces a 256-element output, and factor = 2 produces a 1024-element output.

Useful for stretching or shrinking spectra, lookup tables, or any array data.

input array

expand with factor=2

expand with factor=0.5

Settings

bypass

Bypasses the module processing when activated (ON).

• OFF (0): Module processes normally
• ON (1): Input passes directly to output without processing

array in

Array input flow(s).

array out

Array output flow(s).

factor

Compress expand factor:

• if factor < 1, provides a compression.
• if factor > 1, provides an expansion.
• if factor = 1, no changes.

mode

Interpolation mode used to calculate the new array:

• linear interpolation -- blends between neighboring values for smooth results. Best for audio and continuous data.
• accumulation -- adds input values into the nearest output bin. Useful for histograms or spectral data.

   newIndex = trunc(factor*oldIndex);
   output[newIndex] := output[newIndex]+input[oldIndex]

• no interpolation -- nearest-neighbor mapping, no blending. Best for arrays of discrete values such as colors or indices.

   inIndex = trunc(outIndex/factor);
   output[outIndex] := input[inIndex]

See also

• MIDI to Array (SCRIPT)
• Video to Data Array
• Array
• Array Max Position
• Store Array (SCRIPT)
• Array Copy To
• Array Average
• Array Chaser
• Array Min Value
• Array Duplicate
• Array Normalize
• Array Replace
• Array Max ABS Value
• Array Mid Value
• Array Fill
• Array Max Value
• Array Insert
• Array Expand Compress
• Array Smooth Values
• Array Max - Min Value
• Array Set Size
• Array Concat
• Array Delete Value
• Array Standard Deviation
• Array Unpack
• Array Reverse
• Array Crop
• Array Get Size
• Array Split
• Array Sum
• Array Delete
• Array Combine
• Array Get Element Values
• Array Min Position
• Array Set Element Values
• Array Gate
• Array Recursive Add
• Array Difference
• Array Delay
• Array Contains
• Array Remove Duplicate
• Array Find Index
• Array Queue Data
• Array Repeat
• Array Combine Inverse
• Array Random
• Array Roll
• Array Editor
• Array Limit Size
• Array Affect One by One
• Array Clip
• Array Difference Array Out
• Array Shift
• Array Shuffle
• Array Fill Ramp
• Array Extract
• Array Sort
• Array Display
• Comma-Text to Array (SCRIPT)
• Array to Comma-Text (SCRIPT)
• Data Generator Random Pattern Array (SCRIPT)