Media Volume Control (jp.enet.osls.musiccontrollerServiceVerEngFree) on Google Play
This application adjusts the media volume by the automatic operation according to the speed.There are various usages in this application.one example,It is useful for listening to music when connecting android phone with car audio.application turns the volume down when you are waiting for traffic lights, or running slowly inside the residential area.Afterwards, when the speed is increased, it turns the volume up.you don't trouble others even if you listen to music when the window is open.other examples,Please use this application when you listen to music while you are jogging or you are riding a bicycle or a train.This application turns up the volume when the noise of the wind and other noises grow because the speed increases.Incidentally, you can choose between miles and kilometers speed units.--How to use--This application has two modes.One is "Two-step mode", the other is "Multi-step mode".When you use a Two-step mode, please set the speed at which the volume is switched.Next, please set the volume that drops below the set speed.Similarly, set the volume that exceeds the set speed.Finally, please touch ON/OFF button.The automatic adjustment will start.When you use a Multi-step mode, please set the volume to each of several predetermined speed range.And touch ON/OFF button. The automatic adjustment will start.