The difference between sound and voice

The word 'sound' means 'vibrations that travel through the air or another medium and are heard by our ears.'

On the other hand, the sound produced in a person's n larynx and uttered through the mouth as speech or song is known as 'voice'.
Sound is produced by a musical instrument, brushing of two things together and other things whereas voice is produced by human beings.

Look at the following sentences to see the difference between the two words.
1 The singer has a good voice when she sings.
2 I heard the voice of someone talking on the phone.
3 The sound produced by his electric guitar is deafening.
4 We heard the screeching sound of a car before it stopped suddenly to avoid knocking into the car in front.