EPG added significant insight into academic understanding of articulatory phonetics. It combines modeling, repetition, minimal pair contrast, integral stimulation, articulatory placement cueing, and verbal feedback. The articulatory, visual and acoustic cues that encode them often overlap. The program supports speech synthesis, including articulatory synthesis. The results showed that articulatory suppression had impaired time estimation. Practitioners assume that these exercises will strengthen articulatory structures and generalize to speech acts. However, interpreters are somewhat immune to the effects of articulatory suppression. Studies are being done to investigate the mechanism by which articulatory suppression inhibits that ability. Much research has been done to assess the relationship between articulatory suppression and irrelevant speech. Hanley and Shah looked at the role of irrelevant sound effect under articulatory suppression. For instance, voicing, aspiration, and articulatory force were some of the attributes being studied regularly. While the phone has articulatory voicing, the phone does not have it. This transformation is facilitated by the articulatory control process. For all practical purposes, temperature can be treated as constant in the articulatory system. Later studies have shown that articulatory strength is not completely irrelevant.