acoustic reactance

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Noun1.acoustic reactance - opposition to the flow of sound through a surface; acoustic resistance is the real component of acoustic impedance and acoustic reactance is the imaginary component
resistance - any mechanical force that tends to retard or oppose motion
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References in periodicals archive ?
where [R.sub.a] is the acoustic resistance and [X.sub.a] is the acoustic reactance. The acoustic resistance represents the energy losses and the acoustic reactance is a concentrated expression of the inertia and elasticity of the system.
Figure 15(b) shows that the specific acoustic reactance (the imaginary part of [Z.sub.S]/[Z.sub.0]) decreases slightly with the tortuosity fractal dimension in low-frequency range but increases in high-frequency range.
It will be shown that selected harmonics are likely to be reinforced by vocal tract acoustic reactance, which peaks near a formant but not exactly at the formant frequency.