The reliable and accurate measurement of descriptive features to enable accurate description and statistical comparison of animal sounds has presented one of the major difficulties in bioacoustics. To facilitate a quantitative analysis of the acoustic repertoire of Hector’s dolphins (Cephalorhynchus hectori), a computer-based measurement system in a signal processing language (SIGPROC) has been developed. This automated system allowed us to easily measure descriptive features from 7661 dolphin clicks. The reliability of the measurement system was confirmed by reconstructing some of the clicks from their measured features. The measurement and reconstruction techniques are described. Analyses of the measured data showed that most Hector’s dolphin vocalizations are simple, high-frequency, narrow-band ‘‘clicks.’’ A few examples of wideband clicks were found, as was a sound comprising two frequency components.