Types of internal and external noises in digital communication ?
What Are The Types Of External Noise In Communication Process? Example Of These Is Extra Terrestrial Noise And Types Of Internal Noise. Example Is Flicker Noise.
External noise is anything outside of a person that distracts him/her during communication e.g sight, sounds, smells, textures, environmental factors and others.
Internal noise are thoughts or feelings that interfere with communication e.g daydreaming, feeling tired, ill etc
Internal noise are thoughts or feelings that interfere with communication e.g daydreaming, feeling tired, ill etc
I don't entirely understand what you're looking for. If you're looking for sounds you can't hear with the human ear alone, they are usually associated with the paranormal (EVP, white noise, etc.). If you could refine the question a bit more clearly I may be able to get you a better answer.