Consonant voicing is the voicing of normally unvoiced consonants. For example, turning an [s] into a [z]. The voicing of consonants is rare among our samples. German speakers are quite consistent in voicing [s] before nasals and liquids and This voicing can be attributed to voicing assimilation, where the unvoiced segment takes on the voiced feature of the following segment. German 4 provides a good example of consonant voicing due to voicing assimilation.