The Vowel Black module of 2HP contains two rare synthesis forms. The two modes are switchable between voice and formant synthesis and each parameter has its own CV input. The Formant synthesis delivers results that are oriented to the sound and type of the human voice with a focus on A, E, I, O, U and umlauts. The second mode contains so-called Talking Synth Sounds, here it is to be taken literally that the module is babbling to itself. The sonic results are convincing in any case.