Journal Forum

Synchronized Swept-Sine: Theory, Application, and Implementation - October 2015

Effect of Microphone Number and Positioning on the Average of Frequency Responses in Cinema Calibration - October 2015
1 comment

The Measurement and Calibration of Sound Reproducing Systems - July 2015

Access Journal Forum

AES E-Library

Factors Affecting Accuracy of Loudspeaker Measurements for Computational Predictions

Document Thumbnail

The delay of a signal from the input terminals of a loudspeaker amplifier to the output terminals of a microphone can be represented as two parts, one from the electrical input to acoustical transmission, and an acoustical propagation delay from some point on the loudspeaker to the microphone. For computational models of mixtures of loudspeakers to be correct, these delays must be measured accurately. It will be shown that temperature differences as small as 1 degree Celsius between measurements of two models of loudspeaker can cause significant differences in the predicted sound field. Though sound speed is much less sensitive to changes in humidity, the difference between assuming a typical humidity and assuming zero humidity (which is the norm) can be significant.

AES Convention: Paper Number:
Publication Date:

Click to purchase paper or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $20 for non-members, $5 for AES members and is free for E-Library subscribers.

Learn more about the AES E-Library

E-Library Location:

Start a discussion about this paper!

Facebook   Twitter   LinkedIn   Google+   YouTube   RSS News Feeds  
AES - Audio Engineering Society