Hi all,

It's common knowledge among people who are afflicted with stuttering
that it helps if you're hearing yourself with a little delay while
your speak. This is called Delayed Auditory Feedback (DAF) and makes
it easier to speak in a slow and deliberate manner. There are even
hardware devices sold for this purpose:

http://www.casafuturatech.com/

I've tried one of these devices for a few weeks now. It helps, but
it's just one more thing to remember in the morning, one more thing to
carry around, and it's pretty large. It's also inconvenient when
speaking on the phone. I'd love to develop an Android app for DAF, but
I'm not sure if it's possible.

A DAF has sound input and output, just like a phone. But instead of
hearing another person, the sound input is sent to the output, with an
amount of delay (somewhere between 0-200 ms). Is that effect possible
to achieve with Android? How would you create the delay? Also, would
it be possible to create this effect also when using the phone, so
that I hear the other person AND myself with delay?

Gustaf

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