Yes! Previously, we ran an in-person study and found evidence that auditory feedback with certain alterations of the voice (aside from the more common pitch shift and delay often referred to as FAF and DAF) have a better effect on increasing speech fluency. We have now developed a free iOS/macOS app called Mumble Melody that provides these approaches. Currently, we are running a feedback study to gain input on Mumble Melody from people who stutter, to find out if it might be useful. When using the app, you will be asked a few short questions about your experience from time to time, and the app will remain active for 1 month. There are no places to sign up - if you have the technology, just download the app and your feedback will remain anonymous. This video describes this study in more detail: [https://www.youtube.com/watch?v=73SNCY7akoE&feature=youtu.be](https://www.youtube.com/watch?v=73SNCY7akoE&feature=youtu.be) As does this link: [https://sensein.group/mumble\_melody\_study/](https://sensein.group/mumble_melody_study/) If you want to learn more about this project, here is a link: [https://sensein.group/mumble\_melody\_project/](https://sensein.group/mumble_melody_project/) We may run longer term or more in-depth studies at a later time. If you are interested, here is a google form: [https://docs.google.com/forms/d/e/1FAIpQLSfnQwNl-SXeWoPolljpRQt4b\_8k45ml\_ZplQtoaPa2OruaPow/viewform?usp=send\_form](https://docs.google.com/forms/d/e/1FAIpQLSfnQwNl-SXeWoPolljpRQt4b_8k45ml_ZplQtoaPa2OruaPow/viewform?usp=send_form) Our team's facebook group will routinely post about studies related to speech, neuroscience, and mental health. If you are interested, you can like our page: [www.facebook.com/sensein.group](https://www.facebook.com/sensein.group)