Constraint Optimized Multichannel Mixer-limiter Design
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arXiv
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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866917426841518080 |
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| author | Luo, Yuancheng Yamkovoy, Dmitriy Garcia, Guillermo |
| author_facet | Luo, Yuancheng Yamkovoy, Dmitriy Garcia, Guillermo |
| contents | 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_06769 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Constraint Optimized Multichannel Mixer-limiter Design Luo, Yuancheng Yamkovoy, Dmitriy Garcia, Guillermo Sound Audio and Speech Processing Signal Processing Optimization and Control 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. |
| title | Constraint Optimized Multichannel Mixer-limiter Design |
| topic | Sound Audio and Speech Processing Signal Processing Optimization and Control |
| url | https://arxiv.org/abs/2507.06769 |