Go to Common Results Node Settings for links to information about these sections: Data, Title, and Coloring and Style.
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For examples that use an Octave Band plot, see Absorptive Muffler: Application Library path Acoustics_Module/Automotive/absorptive_muffler and The Brüel & Kjær 4134 Condenser Microphone: Application Library path Acoustics_Module/Electroacoustic_Transducers/bk_4134_microphone.
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Amplitude (the default), to compute the octave plot treating the expression as an amplitude prms. The input is the value p (it is generally a complex-valued variable). It is in turn used to calculate the rms pressure prms, which defines the level L:
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Transfer function, to compute the octave plot treating the expression as a transfer function H (generally, a complex-valued variable), which defines the level L:
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Continuous, to plot a continuous response
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Octave bands (the default), to plot the response using octave bands.
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1/3 octave bands, to plot the response using 1/3 octave bands.
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1/6 octave bands, to plot the response using 1/6 octave bands.
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The predefined weightings are defined in IEC 61672-1. See IEC 61672-1 Electroacoustics - Sound level meters - Part 1: Specifications for details.
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Z-weighted (flat) (the default), to use a zero weighting; that is, a flat weighting.
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A-weighted, to use a weighting that mimics the loudness perceived by the human ear.
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C-weighted, to use a C-weighting, which is an alternative standardized weighting that is in use within the acoustics community.
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Expression, to enter a user-defined value or expression for the weighting in the Expression field. The expression defines the gain as a function of the frequency. The gain given in dB is then given as 20·log10(expression). Use the frequency variable freq for user-defined expressions.
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