Babbling is a stage in child language acquisition, during which an infant appears to be experimenting with making the sounds of language, but not yet producing any recognizable words. (Crucially, the larynx or voicebox, originally high in the throat to let the baby breathe while swallowing, descends during 'the first year of life', allowing a pharynx to develop and all the sounds of human speech to be formed [Naomi S. Baron, Growing up with Language: How Children Learn to Talk (Reading,MA: Addison-Wesley, 1992), p41-43, ISBN 0-201-55080-6].)