SourceControlSpectrum

class ansys.sound.core.sound_composer.SourceControlSpectrum(duration=0.0, method=SpectrumSynthesisMethods.IFFT)

Sound Composer’s spectrum source’s control class.

This class stores the source control (that is the sound duration and the sound generation method) used by the Sound Composer for generating the sound from a spectrum source.

Two sound generation methods are offered:

• IFFT: sound generation method based on the Inverse Fast Fourier Transform of the input spectrum, using random phases.

• Hybrid: sound generation method that combines generation of pure tones and IFFT. If peaks are detected in the input spectrum, they are generated as pure tones (sine waves). The rest is synthesized using the IFFT method.

Class instantiation takes the following parameters.

Parameters:

durationfloat, default: 0.0

Duration of the sound generated from the spectrum source, in seconds.

methodSpectrumSynthesisMethods, default: SpectrumSynthesisMethods.IFFT

Method to use for the sound generation: IFFT or Hybrid.

Methods

SourceControlSpectrum.convert_fields_container_to_np_array(fc)	Convert a DPF fields container to a NumPy array.
SourceControlSpectrum.get_output()	Get output.
SourceControlSpectrum.get_output_as_nparray()	Get output as a NumPy array.
SourceControlSpectrum.plot()	Plot the output.
SourceControlSpectrum.process()	Process inputs.

Attributes

SourceControlSpectrum.duration	Duration of the generated sound, in seconds.
SourceControlSpectrum.method	Method to use for the sound generation: IFFT or Hybrid.