DAF Delayed Auditory Feedback vs Speech Jammer

Try saying "toy boat" repeatedly. It's hard to say, right? There are many words like this, and if you have to use them during an important presentation, it can be quite stressful. But with this app, "toy boat" becomes... **Hugely** difficult to say. If you thought, "Wait, shouldn't it make it easier to say?" you're wrong. It really becomes **hugely** difficult to say. This is a "who benefits from this?" kind of app. What this app does is simple. It picks up your voice through the microphone and plays it back through the headphones (or earphones) with a slight delay. That's all it does. This simple process is called Delayed Auditory Feedback, or DAF for short. DAF is known to have interesting effects. It makes it difficult to speak. So, the already difficult "toy boat" becomes **hugely** difficult to say with DAF. This might seem like a "who benefits from this?" kind of thing, but it's a very interesting phenomenon from a cognitive psychology perspective. Also, DAF doesn't always make speech difficult; the extent of the disruption varies depending on the amount of delay and the way you speak. This app is a simple psychological experiment tool that allows you to test when DAF's effects are most pronounced using yourself as the subject. Experiment with different scenarios using "toy boat" as the keyword. **Important** When using this app, you must have headphones (or earphones) with a microphone. You cannot substitute the device's built-in microphone and speakers. I'll say it again. You cannot substitute the device's built-in microphone and speakers. **Warning** DAF creates a speech situation different from normal. It is possible that this may cause some stress to your mind and body. We cannot take any responsibility for any issues that arise from using this app. Please understand the principles of DAF fully and use this app at your own risk. If you feel any abnormalities in your mind or body, stop using the app immediately. Additionally, we do not recommend letting minors, especially young children, experience DAF. **Effect on Stuttering** There are reports that DAF has improved stuttering. However, this app was developed purely as a simple psychological experiment tool to examine how DAF affects the speech of non-stutterers from a cognitive psychology perspective.

The speech jammer app that actually works with AirPods. Hear your own voice played back with a slight delay and try to keep talking — it's nearly impossible. Speech Jammer uses delayed auditory feedback (DAF) to disrupt your speech in real-time, creating hilarious results at parties, on camera, or just for fun. ▸ HOW IT WORKS Plug in any headphones, tap Start, and speak. Your voice comes back delayed through your headphones, making it incredibly hard to talk normally. • Adjustable delay — slide from 100ms to 500ms to find your breaking point • Works with AirPods — Bluetooth and wired headphones both supported • Real-time waveform — watch your voice visualized as you speak • Headphone detection — automatically warns if headphones aren't connected ▸ 4 JAMMER MODES Go beyond basic delay with unique audio effects that make speech even harder. • Classic Delay — the original DAF effect at your chosen delay • Pitch Shift — hear your voice delayed AND pitch-shifted for extra confusion • Echo Chamber — multiple decaying echoes of your voice overlap • Speed Ramp — delay increases over time until you can't speak at all ▸ CHALLENGE MODE 16 built-in tongue twisters and reading challenges across 4 difficulty levels. • Easy to Impossible — from "Count to Twenty" to the Gettysburg Address • Personal best timer — track how long you can speak under each challenge • Challenge a Friend — share your time and dare friends to beat it • New challenges added in updates ▸ RECORD & SHARE Capture your funniest jammed speech moments and share them instantly. • One-tap recording — hit record while the jammer is running • Playback with progress — listen back to your jammed audio • Share anywhere — Messages, TikTok, Instagram, AirDrop • Recording history — all sessions saved with mode and delay info ▸ DESIGNED FOR FUN Built from scratch for iOS with attention to detail. • Clean, modern interface — no clutter, just the jammer • Haptic feedback — feel when you start and stop • Volume safety — output is capped to protect your hearing • Works fully offline — no internet required, ever ▸ PRICING FREE: • Classic Delay mode with adjustable delay • 3 recordings per day • 3 starter challenges PREMIUM SUBSCRIPTION Speech Jammer Pro is available with the following subscription options: Premium Monthly: $2.99/month Premium Annual: $19.99/year (Save 44%) — includes 7-day free trial Unlock all 4 jammer modes, unlimited recordings, all 16 challenges, and remove all ads. Payment will be charged to your Apple ID account at confirmation of purchase. Subscription automatically renews unless canceled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscriptions by going to your App Store account settings after purchase. Terms of Service: https://speechjammer.bulpara.com/terms Privacy Policy: https://speechjammer.bulpara.com/privacy --- Questions? support@bulpara.com