DAF Delayed Auditory Feedback

DAF Delayed Auditory Feedback

Speech Jammer

6 ratings
4 reviews
Free
With Ads

Details

  • Released
  • Updated
  • March 12, 2013
  • December 14, 2025

Features

DAF Delayed Auditory Feedback screenshot #1 for iPhone
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About

This app uses delayed auditory feedback to make speaking difficult by playing your voice back through headphones with a slight delay. It's a tool for psychological experiments, allowing users to test the effects of DAF on their own speech.

Delayed auditory feedback simulation
Voice input via microphone
Audio output through headphones
Psychological experiment tool
Adjustable delay effects
Speech disruption testing
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What's New in DAF Delayed Auditory Feedback

1.2.2

December 14, 2025

Minor fixes.

User reviews

Thanks for this app

I have stutters in my speech, this App force me to speak slowly.

Microphone not working

I’m using my WH-1000XM4 headphones and this app chooses to use the built-in microphone from my iPhone 11. The audio input should be set to the headphones, and it’s not an issue with my iPhone either since when I record a voice memo it goes through the headphones.

Crash

It won’t let me open the app

Keeps crashing

I’d like to try out your app but it keeps crashing when I try to launch it.

Developer apps

FAQ

What is DAF Delayed Auditory Feedback?

DAF Delayed Auditory Feedback is an application that picks up your voice through the microphone and plays it back through headphones with a slight delay. This process, known as Delayed Auditory Feedback (DAF), is designed to make speaking difficult.

How does DAF Delayed Auditory Feedback work?

The app captures your voice and, after a short delay, plays it back into your headphones. This creates a feedback loop that can significantly disrupt normal speech patterns, making it challenging to articulate words.

Who is DAF Delayed Auditory Feedback for?

This app is primarily for individuals interested in cognitive psychology experiments. It allows users to explore the phenomenon of DAF and its effects on their own speech, using themselves as the subject.

Does DAF Delayed Auditory Feedback have ads?

Yes, DAF Delayed Auditory Feedback contains advertisements. As a free application, it utilizes ads to support its development and distribution.

What devices does DAF Delayed Auditory Feedback support?

DAF Delayed Auditory Feedback is supported on iPhones and iPods. It requires headphones with a microphone for proper functionality.

What is the age rating for DAF Delayed Auditory Feedback?

DAF Delayed Auditory Feedback has an age rating of 12+. The developer advises against letting minors, especially young children, experience DAF due to potential stress.

What are the risks of using DAF Delayed Auditory Feedback?

DAF can create a speech situation different from normal and may cause stress. Users are advised to understand the principles of DAF and use the app at their own risk, stopping immediately if any abnormalities are felt.

How often is DAF Delayed Auditory Feedback updated?

The latest version of DAF Delayed Auditory Feedback is 1.2.2, which was last updated on December 14, 2025. This indicates a relatively recent update.