White noise. A more general term would be "ambient sound" or "ambient noise", which may or may not be white noise. White noise is the combination of every sound frequency and so it is analogous to the color white, a mixture of all of the different frequencies of visible light. White noise is usually called static.
Ambiance, or Ambient Sounds White Noise
Walla is the word they use.
Pandemonium is a synonym for noise. It means wild disorder and utter chaos.
Din.
silence
Sounds
"Silent" have a nice day ^__^;
The sono noise cancelling feature is highly effective in reducing background noise, providing a quieter environment for the user.
Clangour
noise, clash, clank, bang, jangle
Introduction or background information.
White noise