We present a time-varying linear equalization algorithm whose purpose is to protect a loudspeaker from damage under high drive conditions. It is suitable for implementation on a low-cost digital signal processor, often integrated on the same die as a high-performance audio codec. A typical application is in a portable wireless (e.g., Bluetooth) loudspeaker. For a given driver and enclosure design, the algorithm allows the power output of the loudspeaker to be maximized while introducing only minimal coloration or distortion. During the loudspeaker design phase, the parameters of the algorithm can be easily tuned by the designer, further optimizing the overall design for power output, robustness, and low distortion.
Authors:
Painter, Christopher; Soltanmohammadi, Erfan; Jain, Kapil
Affiliations:
Marvell Semiconductor, Inc., Longmont, CO, USA; Marvell Semiconductor, Inc., Santa Clara, CA, USA(See document for exact affiliation information.)
AES Convention:
140 (May 2016)
Paper Number:
9561
Publication Date:
May 26, 2016
Subject:
Audio Signal Processing: Audio Applications
Click to purchase paper as a non-member or you can login as an AES member to see more options.
No AES members have commented on this paper yet.
To be notified of new comments on this paper you can subscribe to this RSS feed. Forum users should login to see additional options.
If you are not yet an AES member and have something important to say about this paper then we urge you to join the AES today and make your voice heard. You can join online today by clicking here.