Headphone Guard

The developer states that the app will cancel environment noises But I cant figure out how to do this Help Update Discovered that there is some utility with this app when used with NC headphones Basically the app has a slider that sets the sound level threshold Sounds above the threshold get passed through the audio output backgrounding is possible even with audio playback with volume adjustment possible And there is an OnOff switch that simply makes the NC headphones do their thing There is also a sound delay setting but I dont understand how this can be of any benefit since the delay to my ears simply repeats the sound So rather than expecting this app to cancel environment noises if you want to somewhat selectively let in environmental noises this app will do that If that is your wish for this app then I would rate this app as 3 stars and have altered my rating           Reverse the intent for 3 stars

Four stars for creativity and running in the background A better designed interface and greater feature range would make this a 5 Star App For example increase the delay range provide a 3 band eq filter for cut off etc              Creative opportunities