Examples
Examples
Try the starting example
- Sample rate (Hz)
- 1000
- Original sample count
- 100
- Zero-padded FFT length
- 1024
- Padded FFT spacing (Hz)
- 0.976562
- Original observation reciprocal duration (Hz)
- 10
- Inserted zeros
- 924
Try another scenario
- Sample rate (Hz)
- 1100
- Original sample count
- 100
- Zero-padded FFT length
- 1024
- Padded FFT spacing (Hz)
- 1.074219
- Original observation reciprocal duration (Hz)
- 11
- Inserted zeros
- 924
Calculation method
Calculation method
Padded FFT spacing (Hz)
Sample rate / padded length.
Original observation reciprocal duration (Hz)
Sample rate / original count; zero padding does not improve true resolution.
Inserted zeros
Padded minus original length.
Symbols and units
- a
- Sample rate (Hz)
- b
- Original sample count
- c
- Zero-padded FFT length
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Assumptions & limits
Assumptions & limits
- Sample rate, original-padded lengths. Returns Bin grid and unchanged resolution note. All coefficients and observations are user supplied; results describe only the stated mathematical model. Quantities are deterministic calculations from supplied observations and assumptions; no external data is fetched. Supported limits: Finite inputs only; numeric fields bounded as labelled. Lists and JSON records are limited to 256 entries unless a stricter tool bound is stated. No automatic design approval, legal conclusion, treatment recommendation or safety certification. Sample rate (Hz): minimum 1e-12, maximum 1000000000000.0. Original sample count: minimum 2, maximum 1000000. Zero-padded FFT length: minimum 2, maximum 1000000.
Are these inputs private?
These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.
Further reading
Background reading; this does not imply endorsement or independent review of SumFizz.