The attenuation of high frequencies reduces sibilance on vocals, but also reduces detail. If unchecked, sibilance can cause distortion even at moderate levels. Pop filters do not appreciably affect hissing sounds or sibilance, for which de-essing is used. Often there is an unvoiced band or sibilance channel. Another example of consonance is the word "sibilance" itself. Emily uses sibilance to imitate the sound and atmosphere she is trying to describe. The gain of a parametric equalizer is reduced as the level of the sibilance increases. Sibilance is used most successfully in stanzas one and five.