Nope. I used the DMAF search terms and came up with nothing. Give me a DOI, or a citation, something that I can use to look up these articles because they're not coming up with typical search terms. Edit: The only thing close to this technology that I found was another device called the Edinburgh Masker. It's a similar device that uses a sine wave at the speaker's fundamental frequency to produce reductions in stuttering frequency. But this only worked for 50% of stuttering. So .... again, where's the science?