The feasibility of encoding multivariate information within the temporal microstructure of an auditory display is examined. Four pulse variables—ear of arrival, polarity, amplitude, and interpulse interval—were independently encoded pulse‐by‐pulse within auditory pulse trains. A fifth variable—conditional memory, representing the previous state of one of the variables—also served as an independent variable in combination with other variables. An informational constraint of up to 1 bit/pulse was imposed upon the combination of variables. Each variable was binary coded and constraints were imposed upon the combination of variables by means of a parity sum across variables. The accuracy of discrimination of a constant informational constraint falls with the number of variables contributing to the parity sum, and with the number of randomly manipulated variables outside of the parity sum. Excellent discrimination of the informational constraint was achieved for one condition with four independently controlled variables. Specific contributions of pulse variables were strikingly more discriminable than others.