DAF Delayed Auditory Feedback
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About DAF Delayed Auditory Feedback
This android application implements Delayed Auditory Feedback (DAF) technique, which is known to help people with stuttering to speak more fluently. The application works by recording the speech through your headset, applying this technique and playing the delayed audio back to you. Frequency Altered Feedback (FAF) is not currently supported, but it will be soon.
I used to be more fluent in loud environments where I couldn't hear myself, including when listening to music on headphones (where I can't hear myself but others can hear me). I don't think, however, there is more to it than just providing a distraction. I think it's just that when you hear yourself differently, it breaks off the feedback loop and tricks your brain into thinking you're speaking fluent.
You can't have a conversation with a really loud music in the headphones, but it not the only method of tricking the brain!
I've red some papers on the matter. Studies shows that stutterers commonly report dramatically increased fluency when singing, whispering or starting speech from a whisper, speaking extremely slowly, speaking in chorus, speaking without hearing their own voice (e.g., speaking over loud music), speaking with a metronome or other rhythm, speaking with an artificial accent or voice, speaking in a foreign dialect, or when speaking while hearing their own voice with a minuscule delay or pitch change.
So, instead of listening to loud music, we can listen to ourselves (and others) with a slight delay, effectively breaking stuttering patterns.
This application uses DAF to aid stuttering. I myself use this application and it does wonders to my speech. It's not that I'm cured or something. Furthermore, after several days of using this application brain gets used to altered feedback and tries to ignore it (I think it is important to force brain to focus on delayed feedback). But I think that it is a great tool to help your brain to get new habits and reflexes, allowing you to speak calmly and breathe properly.
Additional features
The application can operate in the background. Android OS supports multitasking, the application will continue to run in the background while you are checking your SMS, browsing the web or doing something else (except calling or listening to music, of course). It even continues to run if you switch off the phone screen using power button! Which allows to conserve power, I'm getting about 8-10 hours run on my Samsung Galaxy S.
You can control the application using the headset button. You can still receive calls, but when you're not on call you can start or stop the application using headset button. Note: on some devices the application can be automatically unloaded, if inactive, by the operating system.
I used to be more fluent in loud environments where I couldn't hear myself, including when listening to music on headphones (where I can't hear myself but others can hear me). I don't think, however, there is more to it than just providing a distraction. I think it's just that when you hear yourself differently, it breaks off the feedback loop and tricks your brain into thinking you're speaking fluent.
You can't have a conversation with a really loud music in the headphones, but it not the only method of tricking the brain!
I've red some papers on the matter. Studies shows that stutterers commonly report dramatically increased fluency when singing, whispering or starting speech from a whisper, speaking extremely slowly, speaking in chorus, speaking without hearing their own voice (e.g., speaking over loud music), speaking with a metronome or other rhythm, speaking with an artificial accent or voice, speaking in a foreign dialect, or when speaking while hearing their own voice with a minuscule delay or pitch change.
So, instead of listening to loud music, we can listen to ourselves (and others) with a slight delay, effectively breaking stuttering patterns.
This application uses DAF to aid stuttering. I myself use this application and it does wonders to my speech. It's not that I'm cured or something. Furthermore, after several days of using this application brain gets used to altered feedback and tries to ignore it (I think it is important to force brain to focus on delayed feedback). But I think that it is a great tool to help your brain to get new habits and reflexes, allowing you to speak calmly and breathe properly.
Additional features
The application can operate in the background. Android OS supports multitasking, the application will continue to run in the background while you are checking your SMS, browsing the web or doing something else (except calling or listening to music, of course). It even continues to run if you switch off the phone screen using power button! Which allows to conserve power, I'm getting about 8-10 hours run on my Samsung Galaxy S.
You can control the application using the headset button. You can still receive calls, but when you're not on call you can start or stop the application using headset button. Note: on some devices the application can be automatically unloaded, if inactive, by the operating system.
All Application Badges
Free
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Bug
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Android app
App History & Updates
What's Changed
Fixed rare 'jerky sound' issue
Bluetooth-friendly interface
Volume boost option
Delay can be altered in real time
Headset button fixed
Fixed rare 'jerky sound' issue
Bluetooth-friendly interface
Volume boost option
Delay can be altered in real time
Headset button fixed
More downloads DAF Delayed Auditory Feedback reached 50 000 - 100 000 downloads
More downloads DAF Delayed Auditory Feedback reached 10 000 - 50 000 downloads
More downloads DAF Delayed Auditory Feedback reached 5 000 - 10 000 downloads
What are users saying about DAF Delayed Auditory Feedback
Y
by Y####:
by Y####:
Stuttering cause is explained by one theory that a stammerer speech rate is slower than a normal speaker so if stutter speaks at normal speech rate .. he is bound to get blocks alot .... this app is for decreasing rate at which we speak .... to use it properly .... set the delay rate to 300 ms in start ... and slow ur rate of speech accordingly .. meaning till ur one syllable voice is not heard by delay .. dnt say another syllable before it thus the speech rate will decrese .....
Y
by Y####:
by Y####:
If someone could explain this to me I would rate it higher.
Y
by Y####:
by Y####:
I keep stuttering all the time with this app.
K
by K####:
by K####:
It worked but started echoed feedback after I altered the settings. Help please
F
by F####:
by F####:
I plugged in my headset and after a few seconds I just heard a lowed trtrrrttrt sound.
Y
by Y####:
by Y####:
only one problem is with the earphones I wish to fix it
Y
by Y####:
by Y####:
need practice 3-4 hours per day for 1 month your stammering will be vanished
Y
by Y####:
by Y####:
How the hell ho I increase the volume to actually hear the app more than myself! And I tried the phone volume.
Y
by Y####:
by Y####:
Sound echoes a lot.
C
by C####:
by C####:
Installed yesterday after a friends recommendation. Lets hope it helps.
Y
by Y####:
by Y####:
Brilliant! The grandfather of all speech jammers!!!
J
by J####:
by J####:
very usefull.please add recording function.thanks so much.Shahzad pakistan
K
by K####:
by K####:
Only problem is with the earphones with mic. It gives tunnel echo and even creates positive feedback loop with all the squeeks and stuff. Doesn't happen with ordinary earphones.
Y
by Y####:
by Y####:
Works only if your not in a call
K
by K####:
by K####:
But it tends to lag a couple seconds back when talking for a prolonged period of time
K
by K####:
by K####:
Doesn't work, if you change the frequency it just has this static sound that gets really loud.
K
by K####:
by K####:
It make my speech very fluently but one request to app maker pls don't make cost for this pls pls
K
by K####:
by K####:
I was talkibg into the microphone and all I could hear was nothing it was sooooo annoying
K
by K####:
by K####:
Работает отлично! Телефон lenovo p780.
E
by E####:
by E####:
I think to buy the device
K
by K####:
by K####:
Thanks a lot
Q
by Q####:
by Q####:
Thank you
Y
by Y####:
by Y####:
Kurr kurrr sound only
K
by K####:
by K####:
Amazing work just perfect for me. Thank you
H
by H####:
by H####:
the best out there
F
by F####:
by F####:
Best app ever
E
by E####:
by E####:
Good
L
by L####:
by L####:
I plugged in my headset and after a few seconds I just heard a lowed trtrrrttrt sound.
W
by W####:
by W####:
Installed yesterday after a friends recommendation. Lets hope it helps.
M
by M####:
by M####:
I learned how to use it with phone calls and I'm pleased. Use the app while calling someone. Its a great app.
H
by H####:
by H####:
Helping my close ones to get over with their stuttering. :)
M
by M####:
by M####:
Does not work on Lollipop
E
by E####:
by E####:
Loved it used first time feeling better
M
by M####:
by M####:
From most obvious to important Reverb effect, frequency change, volume boost optional
M
by M####:
by M####:
It's worthy.
D
by D####:
by D####:
Best app ever
B
by B####:
by B####:
Helping me
S
by S####:
by S####:
Not working properly
G
by G####:
by G####:
Waste
by P####:
As a stuttering preacher, I've found considerable fluency through this app. I only use it when preaching or when reading to my children (both scenarios have given me a great deal of stuttering problems in the past) as I don't want to become immune to its effects by over use! I use it with bluetooth headphones (with only one ear piece in) and place my smartphone on the podium in front of me so it has no trouble picking up my voice. I can now say what I want to say!