An investigation was conducted to obtain normative data regarding the following parameters of the neonatal cry: fundamental frequency, harmonic spectrum, sound pressure level, and duration. Cries in response to stimulation were recorded for ten infants, ranging in age from four to forty hours. Samples of this crying behavior were subjected to analysis through spectrographic and level recorder techniques. In general, it was learned that different cries, as produced by the same neonate, do not differ significantly from each other with respect to fundamental frequency, sound pressure level, or duration. It was further observed, however, that when comparisons are made between neonates for the fundamental frequency and sound pressure level parameters, significant differences do exist. Finally, it was determined that the neonatal cry is similar, spectrographically, to the (ae) and (A) vowels. The results of this investigation are discussed in relation to previously reported findings and hypotheses concerning the role of acoustic analysis as a neurological diagnostic approach in infants.