Examples
Examples
Try the starting example
- Highest signal frequency (Hz)
- 20
- Sampling frequency (Hz)
- 100
- Nyquist headroom (Hz)
- 30
- Oversampling ratio
- 2.5
- Sampling condition
- Above Nyquist requirement
Try another scenario
- Highest signal frequency (Hz)
- 22
- Sampling frequency (Hz)
- 100
- Nyquist headroom (Hz)
- 28
- Oversampling ratio
- 2.272727
- Sampling condition
- Above Nyquist requirement
Calculation method
Calculation method
Nyquist headroom (Hz)
Sampling frequency/2 minus highest frequency.
Oversampling ratio
Sample rate/(2 highest frequency); zero-frequency input has no finite ratio.
Sampling condition
Strictly above twice signal maximum is required by this bandlimited model.
Symbols and units
- a
- Highest signal frequency (Hz)
- b
- Sampling frequency (Hz)
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
- Highest signal frequency, sampling rate. Returns Sampling margin and alias flags. 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. Highest signal frequency (Hz): minimum 0, maximum 1000000000000.0. Sampling frequency (Hz): minimum 1e-12, maximum 1000000000000.0.
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.