Journal Forum

Clean Audio for TV broadcast: An Object-Based Approach for Hearing-Impaired Viewers - April 2015
2 comments

Audibility of a CD-Standard A/DA/A Loop Inserted into High-Resolution Audio Playback - September 2007
13 comments

Sound Board: Food for Thought, Aesthetics in Orchestra Recording - April 2015
2 comments

Access Journal Forum

AES E-Library

Amplitude and Frequency Modulation Distortion of a Loudspeaker

Document Thumbnail

The measurement techniques and the causes of amplitude and frequency modulation distortions are discussed using a two-way coaxial type loudspeaker system. The distortion due to amplitude modulation is caused by the dependence of the radiation efficiency of the high frequency driver on the displacement of the diaphragm of the low frequency driver. The distortion due to frequency modulation seems to be produced when the high frequency sound has a non-zero particle velocity in the axis direction at the surface of the low frequency driver's diaphragm. The symmetry of the sidebands of the summed modulation distortion (intermodulation distortion) indicates that the amplitude and frequency modulation distortions are 90 deg out of phase with each other.

Authors:
Affiliations:
AES Convention: Paper Number:
Publication Date:
Subject:
Permalink: http://www.aes.org/e-lib/browse.cfm?elib=11764

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