At first, speech and sound can feel like vibrations or sound like clatter or garbled noise. Some people can recognize speech right away, but it might sound mechanical and artificial or high pitched. To others, it may start out sounding natural just like they remember. For people with long-standing hearing loss, the brain may have been deprived of meaningful sound for a very long time, in some cases since birth. It takes the brain time to learn or re-learn how to separate and identify individual sounds in the environment. With patience and practice, it all begins to make sense.
As the brain adjusts and learns the complete sound picture, what you hear will become more natural. The initial experience of hearing with a cochlear implant does not set the stage for what sounds you will hear and interpret after a period of listening and practicing.