Overshoot in the crossover region of multiband dynamic range compression (DRC) systems is an issue that is encountered in several audio applications such as hearing aids, audio mastering tools, and portable loudspeaker systems. This overshoot translates into a loss of overall loudness due to reduced post scale headroom, digital clipping, or allowable output above a chosen threshold. This paper introduces a gain compensation filter in the limiter gain computation path in each band, thus preserving the audio quality and loudness of the system. Furthermore, a couple of methods for calculating the optimal compensation filter is presented along with analysis of the two and three band DRC systems with and without the proposed solution.
https://www.aes.org/e-lib/browse.cfm?elib=17148
Click to purchase paper as a non-member 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 $33 for non-members and is free for AES members and E-Library subscribers.
Learn more about the AES E-Library
The Engineering Briefs at this Convention were selected on the basis of a submitted synopsis, ensuring that they are of interest to AES members, and are not overly commercial. These briefs have been reproduced from the authors' advance manuscripts, without editing, corrections, or consideration by the Review Board. The AES takes no responsibility for their contents. Paper copies are not available, but any member can freely access these briefs. Members are encouraged to provide comments that enhance their usefulness.
Start a discussion about this paper!
