Does the change in frequency due to Doppler effect depend on (i) distance between source and observer? (ii) the fact that source is moving towards observer or observer is moving towards the source?

When the light source is moving towards an observer,

(a) Does the change in frequency due to Doppler effect depend on the distance between source (b)Does the change in frequency due to Doppler effect on the fact that source is moving towards the observer or observer is moving towards the source ?

Doppler's effect in sound takes place when source and observer are

A source of sound moves towards an observe.

Stationary Source And Moving Observer

Source of sound and observer are moving towards each other, the observer will hear

An observer is moving towards the stationary source of sound, then

When the source is moving towards the stationary observer, the apparent frequency is given by

When a source of sound is in motion towards a stationary observer, the effect observed is