Improving Microphone Equalization for Dialog

While anechoic microphone frequency response is a common specification, microphones in use for dialog are strongly influenced by their relative position to the talker. In this work, one reference microphone type and position is taken as representing the correct response for the talker, and other microphones and methods for their use are compared to the reference. Among the positions and types tested are those normally used on a boom for film and television use, and a lavalier. Equalization is designed to minimize the differences between each type and the reference, and in some cases, up to 10 parametric bands are necessary to produce a response that is about +/-1 dB of the reference over the voice range. Several room acoustic conditions were included in the survey, as well as the effects of windscreens. The presentation of the paper will include a recorded demonstration.

Published

1998-10

Content type

Original Research

DOI

10.5594/M00283

ISBN

978-1-61482-929-4