SmoothSpeed by Kapdjim

SmoothSpeed: Passive Speed Habituation for YouTube

Train your brain to listen faster without even noticing.

SmoothSpeed is not just another speed controller. It is a productivity tool designed to help you consume video content faster through Passive Habituation . By micro-adjusting the playback rate in near-invisible increments, SmoothSpeed allows you to reach high listening speeds (1.5x, 2.0x, and beyond) while maintaining full comprehension and comfort.

How Passive Habituation Works

The human brain is incredibly adaptable. If you jump from 1.0x to 1.5x instantly, the audio sounds distorted and rushed. However, if you increase the speed by 0.01x every 30 seconds , the change is imperceptible. After 20 minutes, you are watching at 1.40x without ever feeling that the speaker has accelerated.

Key Features

• ⚡ Seamless Auto-Acceleration : Automatically increases playback speed by 0.01x at smart intervals.
• 🕒 Adaptive Intervals : The faster you go, the more the extension smooths the transitions to ensure you stay in the "comfort zone."
• 📊 Real-time Dynamic Display : A sleek overlay added next to the YouTube timer showing your current speed and a countdown to the next micro-increase.
• ⏳ Adjusted Duration : Instantly see exactly how much time is left in the video based on your actual speed (hh:mm:ss).
• 🖱️ Mouse Wheel Control : Hover over the speed display and scroll to manually fine-tune your speed with 0.01x precision.
• ⌨️ Keyboard Shortcuts : Press Shift + A to toggle the habituation timer on or off.
• 🔄 Instant Reset : Double-click the speed display to return to 1.00x immediately.

Why use SmoothSpeed?

• Save Time : Watch a 60-minute lecture in 40 minutes without the "chipmunk" effect.
• Better Focus : Listening at a slightly faster pace forces the brain to stay engaged and prevents mind-wandering.
• Privacy First : SmoothSpeed runs 100% locally. No data collection, no tracking, no external servers.

Quick Start

1. Install the extension.
2. Open any YouTube video.
3. Look for the speed display next to the video time (e.g., 1.00x ).
4. Let the "Smooth" effect take over, or scroll your mouse wheel to set your starting point.
   Master your time. Train your ears. Experience SmoothSpeed.