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apply_amplitude_modulation_region

apply_amplitude_modulation_region

Location: variations/transformations.py

Description

apply_amplitude_modulation_region applies localized amplitude modulation to a specific portion of a signal. This is useful for simulating partial signal fluctuations, such as localized interference or dynamic system responses.

Notes

  • Modulation occurs only within the specified fraction (f_min to f_max) of the signal length.
  • Uses sinusoidal modulation with a random frequency between 0.1 Hz and 1.0 Hz.
  • The rest of the waveform remains unchanged.

Parameters

  • wave (numpy.ndarray):
    The input waveform.

  • modulation_depth (float, optional):
    Strength of the amplitude modulation.
    Default: 0.5.

  • f_min (float, optional):
    Fraction of the signal length where modulation starts.
    Default: 0.1.

  • f_max (float, optional):
    Fraction of the signal length where modulation stops.
    Default: 1.0.

Returns

  • modulated_wave (numpy.ndarray):
    The waveform with localized amplitude modulation.

Usage Example

modulated_wave = svg.apply_amplitude_modulation_region(wave, 0.3, 0.2, 0.8)