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arXiv · 2507.06769

Constraint Optimized Multichannel Mixer-limiter Design

Yuancheng Luo·Dmitriy Yamkovoy·Guillermo Garcia
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Abstract

Multichannel audio mixer and limiter designs are conventionally decoupled for content reproduction over loudspeaker arrays due to high computational complexity and run-time costs. We propose a coupled mixer-limiter-envelope design formulated as an efficient linear-constrained quadratic program that minimizes a distortion objective over multichannel gain variables subject to sample mixture constraints. Novel methods for asymmetric constant overlap-add window optimization, objective function approximation, variable and constraint reduction are presented. Experiments demonstrate distortion reduction of the coupled design, and computational trade-offs required for efficient real-time processing.

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Yuancheng Luo, Dmitriy Yamkovoy, Guillermo Garcia. 2025-07-09. Constraint Optimized Multichannel Mixer-limiter Design. https://doi.org/10.1109/icassp55912.2026.11462289

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