Clairaudience is obtaining information by hearing sounds or voices, that can't be heard by 'normal' people. It is sounds that are outside the range of normal spectrum of hearing. it aren't higher or lower tones, but different tones. Someone who is clairaudient can receive this. It does look like someone is whispering. It isn't necessary to hear it in the ears. It is also possible to hear it inside yourself.
Someone who is clairaudient, hears often only a part or some of the possibilities below. Besides the ways of clairaudience mentioned below, there are also other possibilities.
Getting through by entities
Around everyone several spirits/guides can be found. These guides do help the person in case and give him advice when someone can hear it. In this world not only positive spirits exist, also negative (evil-minded) spirits do exist and can advise you the wrong things. It is important to stay close to yourself and evaluate the things that are advised. A person with experience should be able to determine whether or not a spirit is negative or positive.
Sometimes entities/spirits for example come to you for a short visit and they can say hello and ask your attention by calling your name. Someone who hears her name knows that she is visited for a moment and that someone comes having a look.
Hearing thoughts (telepathy, mind reading, psychic)
It is rare, but some people do have the ability to hear other people's thoughts. Mostly this is possible with relatives and friends, the people you have personal bonds with. You hear in your head what the other person thinks, perhaps it looks like you hear it with your ears, but it is really in your head. The first time it happens, probably you will ask the other person what he/she said, and the other answers with saying nothing have been said. To perceive thoughts, distance doesn't matter.
Inner hearing ~~~~ from deep inside you
Other people do not listen to voices coming from outside, but can listen to themselves. The difference with clairsentience (knowing) is the source where it comes from. With paranormal knowing the information comes from a cosmic source, while inner hearing comes from inside you. The person turns inside, and goes inside to your innerself for advice. It is important that the innerself can speak freely without being influenced by the will or ego of a person.
Communication with trees
There are people that communicate with trees. This is almost similar to inner hearing, but here the difference is that there isn't communication with your inner self, but you make contact with the tree outside you. When you communicate, you make contact with the consciousness of the tree. You hear the tree inside your head, and not in your ears. You translate it in words yourself. All trees do have individuality, but at the same time they are part of a collective consciousness. Different trees do have different characters. Besides trees people can talk to plants as well.
This is when someone is able to derive some things from the voice of a person. When someone is talking with someone else, the person puts unconscious many emotions as energies in it from himself. When a person does have conceitedness, this is also put in the voice of that person. Through the voice someone carries out the conceitedness he has. This is the case for every feeling and every characteristic someone has. Also when a person is lying the other person can hear that in the voice. The energy of the lying is put into the voice and received by the ear. This energy translates itself into knowing the other person is lying. It is also possible that a person hears someone speaking the truth (because the lying-energy is absent in the voice). With listening to the expression of sound, more information can be taken out from the voice. You hear a voice and with this voice can be able to describe how the other person is like.