This pages lists some of the apps and software to run altered auditory feedback (AAF) on a smartphone, tablet or computer.
They relay your voice back to you with a slight delay (Delayed Auditory Feedback or DAF), and/or with a slight alteration in pitch (Frequency-shifted Auditory Feedback or FAF). More: General information on apps and devices.
Apps for smartphones
The apps below are examples. Search for the app name in Google Play or iTunes. For more apps, you can search there for 'auditory feedback'.
Apps installed on a smartphone may or may not work on calls using the phone. We have heard of them working with calls on an Android phone. You can look at the app description and reviews, but ultimately will need to test it on your phone.
With a bluetooth headset you should be able to use AAF on a phone wirelessly, though this may add a further delay to the feedback.
'DAF Assistant' - www.ArtefactSoft.com (Android + Apple)
DAF and FAF. There is a free demo version for Android called 'DAF Assistant Lite'.
'DAF Professional' - www.speechtools.co (Android + Apple)
DAF and FAF. There is a free trial for Android called 'DAF Professional Lite'.
'DAF Delayed Auditory Feedback' (link to Google Play) (Android)
DAF (not FAF). Free.
'Stuttering Help' (link to Google Play) (Android)
Free trial, and full version. As well as DAF (not FAF), says that it includes 'Metronome, Mirror, Add Words, Finger Tapping, Yoga'.
'FluencyCoach' (link to itunes) (Apple)
DAF and FAF, and ability to record speech so one can hear it back. Free.
'Speech4good' - www.speech4good.com (Apple)
Aimed at speech and language therapists as well as people who stammer. DAF (but not FAF), with digital speech graph and ability to record session, type notes, and email recorded sessions.
Article: No I'm not listening to music - Christine Simpson thought she'd try installing altered auditory feedback (AAF) software on her mobile phone and work computer.