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THE FEUTEX TOOLKIT

Window Equivalent Noise Bandwidth

Compute ENBW from precomputed window coefficient sums.

Signal Processing workspace● Runs in your browser
01 Your input
02 Your result
View or copy raw result data
FormulaENBWbins=NΣw²/(Σw)²
Sources and model references

Worked example

Inputs

Window samples
1000
Sum of window coefficients
500
Sum of squared coefficients
375
Sample rate
10000 Hz

Expected results

Noise bandwidth
1.5 bins
Noise bandwidth in Hz
15 Hz
Coherent gain
0.5 ratio

Load the example in the workspace to reproduce these results. Display rounding does not change the underlying calculation.

How to use this tool

  1. Enter the labeled inputs in the indicated units.
  2. Calculate and compare every output against the stated model assumptions.

Try this example

{
  "n": 1000,
  "sum": 500,
  "squares": 375,
  "fs": 10000
}

Accuracy and scope

Enter sums from the actual window; no window coefficients are inferred. Simplified analytical model; not a design recommendation or safety certification.

Is my data uploaded?

This tool runs locally in your browser. Input and output are not sent to a processing server. Copy or download your result before leaving the page.