This application containing the best collection of annoying sounds for android devices. Sounds have been selected very carefully to be a good and fun user experience, we hope you will enjoy using the app and listening to annoying sounds. If you are bored with the standard ringtones, try Annoying Sounds Free. A new study shows annoying sounds trigger a highly emotional response in the brain. Researchers found the part of the brain that regulates emotions, the amygdala, appears to take over the hearing part of the brain when people hear an extremely annoying sound. Set a different Annoying Ringtone for each contact from your phone.