I am trying to record my voice on a smartphone (Xiamo Redmi Note 3) for the rendering of the National Anthem for the interesting project Mile Sur Mera Tumhara. However, external sounds are also getting recorded since, obviously, I do not live in a sound proof home & do not have access to a fancy recording studio! I would like to know if there is any method to mute the external sounds of traffic, crows cawing, doors banging, etc. after I upload the audio clip on my laptop. If this is possible, please give me expert step by step guidance.
Experts: awaiting respsonse.