Journal Forum

Synthetic Reverberator - January 1960
1 comment

Multichannel Sound Reproduction Quality Improves with Angular Separation of Direct and Reflected Sounds - June 2015
1 comment

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

Access Journal Forum

AES E-Library

Gradient Loudspeakers

Document Thumbnail

The directivity of gradient-type loudspeakers depends upon the difference in phase, or powers of the difference in phase, of the generated sound pressures between two or more points in space. The directivity of the conventional wave-type loudspeakers depends in some manner upon wave interference of the sound emanating from the elements of the radiating surface. To obtain any semblance of directivity from the wave-type loudspeaker, the radiating surface must be comparable to the wavelength. Therefore, the dimensions of the wave-type loudspeakers become relatively large in the low audio frequency range. In contrast, gradient-type loudspeakers are small compared to the wavelength. For sound reproduction requiring directional loudspeakers, the gradient-type loudspeaker provides the features of relatively small size and uniform directivity with respect to frequency.

JAES Volume 21 Issue 2 pp. 86-93; March 1973
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