Project AES-X223 initiation

[page updated 2014-10-02]

This project was proposed by E. Simon. It was approved under our rules by Subcommittee SC-04 and assigned to the SC-04-03 Working group on Loudspeaker Modeling and Measurement .

TITLE AES-X223, Loudspeaker driver comparison chambers
SCOPE To consider factors affecting the interchangeability of measurement data from simple loudspeaker comparison chambers.
OUTPUT INTENT Information Document
RATIONALE In the manufacture of loudspeaker drivers, a frequent final test places each driver into a relatively-compact test chamber, measures its acoustic response to a set of test signals, and compares them with stored values derived from a reference sample. This does not provide the full performance measurements that would require a full-sized anechoic chamber, however it can identify deviations from the expected performance set by the reference.

Such test chambers are typically built only to meet local needs. As a result, the figures derived from one cannot be compared with figures derived from another.

This report will set out some relevant issues and suggest designs and construction methods to achieve measurement figures that will be comparable between different testing sites.
WHO BENEFITS? Manufacturers and users of loudspeaker drivers.
WHY AES? The AES represents key manufacturers and users of loudspeaker drivers.
AES - Audio Engineering Society