LoudnessISO532_1_TimeVarying

class ansys.sound.core.psychoacoustics.LoudnessISO532_1_TimeVarying(signal=None, field_type='Free')

Computes ISO 532-1:2017 loudness for time-varying sounds.

This class computes the loudness of a signal according to the ISO 532-1:2017 standard, corresponding to the “Zwicker method”, for time-varying sounds.

See also

LoudnessISO532_1_Stationary

Examples

Compute the percentile loudness of a time-varying signal in free field, and display its loudness over time.

>>> from ansys.sound.core.psychoacoustics import LoudnessISO532_1_TimeVarying
>>> loudness = LoudnessISO532_1_TimeVarying(signal=my_signal, field_type="Free")
>>> loudness.process()
>>> N5 = loudness.get_N5_sone()
>>> N10 = loudness.get_N10_sone()
>>> L5 = loudness.get_L5_phon()
>>> L10 = loudness.get_L10_phon()
>>> loudness.plot()

See also

Calculate psychoacoustic indicators

Example demonstrating how to compute various psychoacoustic indicators.

Class instantiation takes the following parameters.

Parameters:

signalField, default: None

Signal in Pa on which to compute time-varying ISO532-1 loudness.

field_typestr, default: “Free”

Sound field type. Available options are “Free” and “Diffuse”.

Methods

LoudnessISO532_1_TimeVarying.get_L10_phon()	Get the L10 percentile loudness level.
LoudnessISO532_1_TimeVarying.get_L5_phon()	Get the L5 percentile loudness level.
LoudnessISO532_1_TimeVarying.get_Lmax_phon()	Get the maximum instantaneous loudness level in phon.
LoudnessISO532_1_TimeVarying.get_N10_sone()	Get the N10 percentile loudness.
LoudnessISO532_1_TimeVarying.get_N5_sone()	Get the N5 percentile loudness.
LoudnessISO532_1_TimeVarying.get_Nmax_sone()	Get the maximum instantaneous loudness in sone.
LoudnessISO532_1_TimeVarying.get_loudness_level_phon_vs_time()	Get the instantaneous loudness level in phon.
LoudnessISO532_1_TimeVarying.get_loudness_sone_vs_time()	Get the instantaneous loudness in sone.
LoudnessISO532_1_TimeVarying.get_output()	Get time-varying loudness data.
LoudnessISO532_1_TimeVarying.get_output_as_nparray()	Get time-varying loudness data in a tuple of NumPy arrays.
LoudnessISO532_1_TimeVarying.get_time_scale()	Get the time scale of the instantaneous loudness and loudness level.
LoudnessISO532_1_TimeVarying.plot()	Plot the instantaneous loudness, in sone, and loudness level, in phon.
LoudnessISO532_1_TimeVarying.process()	Compute the time-varying ISO532-1 loudness.

Attributes

LoudnessISO532_1_TimeVarying.field_type	Sound field type.
LoudnessISO532_1_TimeVarying.signal	Input signal in Pa.