36 lines
1.3 KiB
Rust
36 lines
1.3 KiB
Rust
use crate::config::*;
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/// The 'mode' used in computing averaged power spectra. When providing data in
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/// blocks to the [AvPowerSpectra] the resulting 'current estimate' responds
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/// differently, depending on the model.
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#[derive(Copy, Clone, PartialEq, Debug)]
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#[cfg_attr(feature = "python-bindings", pyclass)]
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pub enum ApsMode {
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/// Averaged over all data provided. New averages can be created by calling
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/// `AvPowerSpectra::reset()`
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AllAveraging {},
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/// In this mode, the `AvPowerSpectra` works a bit like a sound level meter,
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/// where new data is weighted with old data, and old data exponentially
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/// backs off. This mode only makes sense when `tau >> nfft/fs`
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ExponentialWeighting {
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/// Time weighting constant, follows convention of Sound Level Meters.
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/// Means the data is approximately low-pass filtered with a cut-off
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/// frequency f_c of s/tau ≅ 1 → f_c = (2 * pi * tau)^-1.
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tau: Flt,
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},
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/// Spectrogram mode. Only returns the latest estimate(s).
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Spectrogram {},
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}
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impl Default for ApsMode {
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fn default() -> Self {
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ApsMode::AllAveraging {}
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}
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}
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#[cfg(feature = "python-bindings")]
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#[cfg_attr(feature = "python-bindings", pymethods)]
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impl ApsMode {
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#[inline]
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fn __eq__(&self, other: &Self) -> bool {
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self == other
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}
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}
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