Klopfenstein D, Beral Y, Escaillet B, Fourika F
Centre hospitalier général, Calais.
Rev Fr Gynecol Obstet. 1993 Jan;88(1):39-44.
Analysis of the sounds transmitted from the outside world to the fetus have shown that the fetus receives sound of more than 40 décibels, regardless of the means of transmission or of the position of the mother. Below this threshold, many parameters are involved, such as the position of the mother, the method of sound transmission, but the mother's voice always seems to be have priority.
