Conclusion: The study provides evidence that ultrasound visual feedback in the context of a motor learning program can be used to facilitate more accurate speech sound production in individuals with residual speech sound errors. Beyond the effects of ultrasound visual feedback, prosodic cueing was not observed to have a robust impact on motor learning in this study. In sum, for some individuals whose speech sound errors have persisted for several years, a short period of ultrasound visual feedback treatment in the context of a motor learning program may be an effective approach to remediation.