Parameters module
In this module functions for parameters calculating are collected
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parameters.DFIC(x, dt, fbounds=[0.03, 0.07], stft_res=[], stft_args=('hamming', 1200, 120, True))[source]
Dominant frequency instability coefficient
| Parameters: |
- x (numpy.ndarray) – Sample sequence
- dt (float) – Sampling period
- fbounds (list) – Frequencies band
- spectrum (list) – Pre-calculated spectrum matix (calculated by stft). By default it calculates inside this function.
- stft_args (tuple) – Arguments for stft function
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| Returns: | float
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parameters.dominant_frequency(x, dt, fbounds=[0.03, 0.07], spectrum=[])[source]
Dominant frequency search
| Parameters: |
- x (numpy.ndarray) – Sample sequence
- dt (float) – Sampling period
- fbounds (list) – Frequencies bounds
- spectrum (numpy.ndarray) – Pre-calculated spectrum. By default it calculates inside this function.
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| Returns: | float
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parameters.kritm(x, dt, fbounds=[0.03, 0.07], spectrum=[])[source]
Normalized Kritm parameter
| Parameters: |
- x (numpy.ndarray) – Sample sequence
- dt (float) – Sampling period
- fbounds (list) – Frequencies band
- spectrum (numpy.ndarray) – Pre-calculated spectrum. By default it calculates inside this function.
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| Returns: | float
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parameters.power(x, dt, fbounds=[0.03, 0.07], spectrum=[])[source]
Power of the part of the specturm
| Parameters: |
- x (numpy.ndarray) – Sample sequence
- dt (float) – Sampling period
- fbounds (list) – Frequencies band
- spectrum (numpy.ndarray) – Pre-calculated spectrum. By default it is calculated within this function.
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| Returns: | float
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parameters.slide_proc(x, dt, procedure, fbounds=[0.03, 0.07], stft_res=[], stft_args=('hamming', 1200, 120, True))[source]
Calculation of the result of the procedure along the time axis using STFT.
| Parameters: |
- x (numpy.ndarray) – Sample sequence
- dt (float) – Sampling period
- procedure (function) – Name of the function which will be applied on every step
- fbounds (list) – Frequencies bounds
- stft_res (list) – Pre-calculated result of STFT
- stft_args (list) – STFT function arguments (see pyegeg.spectran.stft). Required if STFT didn’t calculated yet.
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| Returns: | list
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