Somatosensory and auditory feedback contribute to speech motor control, but it is unclear how they interact in on-line feedback control. In previous studies, we showed evidence for a somatosensory-based response to tongue-stretch perturbation in vowel production, which ensures tongue posture stabilization and preserves the auditory characteristics of the sound. In this study, we combined the tongue perturbation with an alteration of the auditory feedback, which induced formant shifts that were either consistent or inconsistent with the auditory impact of the tongue perturbation. We investigated how the compensation for the auditory perturbation interacts with the somatosensory response to the tongue perturbation. We did not find any interaction. The latency of the compensation for the formant shift was longer than the one of the somatosensory responses, suggesting that somatosensory feedback control could be the fastest one to preserve crucial auditory characteristics of vowels.