Auto Volume Control: Noise Cancellation is a free multimedia app developed by Erfan Rouhani for Android devices. This app is designed to help users control their music volume automatically based on the noise, device shakes, and speed around them.

The app offers three types of controls: noise control, device shake control, and speed control. With noise control, the app listens to the environment around you and adjusts the music volume automatically. The device shake control feature changes the music volume based on your device's movements and shakes, while the speed control feature increases or decreases the music volume based on your device's speed.

Users can set the interval for changing music volume, the sensitivity to noise and shakes, and the start and stop range of music volume and speed. The app also supports km/h and mph for speed and allows users to calibrate the most sound and shakes that their device can receive. The music volume is displayed in the notification bar, making it easy to see and adjust.

Overall, Auto Volume Control: Noise Cancellation is a helpful app for those who want to control their music volume automatically without having to manually adjust it in noisy or quiet environments.