Engineering and Technology
| Open Access | Intelligent Acoustic Signal Upgrading through Evaluation-Oriented Metrics and Adaptive Search Algorithms
Dr. Elīna Ozoliņa , Faculty of Computer Science University of Latvia Riga, LatviaAbstract
Acoustic signal degradation remains a persistent challenge in digital communication systems, speech-driven interfaces, assistive hearing technologies, and real-time multimedia transmission environments. Environmental interference, transmission distortion, quantization noise, and channel attenuation significantly reduce speech intelligibility and perceptual quality, thereby affecting the operational reliability of intelligent communication platforms. Conventional speech enhancement systems primarily rely on deterministic filtering and static optimization methods, which frequently exhibit limitations in handling non-stationary noise distributions and dynamically changing acoustic conditions. This research proposes an intelligent acoustic signal upgrading framework that integrates evaluation-oriented quality metrics with adaptive search algorithms to improve speech reconstruction fidelity under computationally constrained and noise-intensive environments. The proposed framework combines objective speech quality evaluation mechanisms, optimization-driven parameter adaptation, GPU-enabled parallel computation, and adaptive heuristic search methodologies for real-time signal enhancement.
The study synthesizes concepts from speech enhancement, statistical optimization, quality assessment theory, swarm intelligence, and high-performance parallel computing. The architecture incorporates Local Quality Evaluation (LQE)-oriented signal assessment with adaptive optimization techniques such as Harmony Search, Particle Swarm Optimization, and Tree-Seed Algorithm variants. GPU-assisted acceleration through CUDA-based processing improves computational efficiency while maintaining reconstruction accuracy. The framework additionally integrates statistical process control principles and kernel-based anomaly evaluation to identify distortion-sensitive acoustic regions and dynamically adjust enhancement parameters.
The proposed methodology demonstrates that optimization-assisted enhancement systems significantly outperform conventional static enhancement approaches in signal-to-noise ratio stabilization, spectral continuity preservation, and perceptual intelligibility improvement. The findings further reveal that evaluation-guided adaptive search procedures reduce convergence instability and improve reconstruction consistency under heterogeneous noise conditions. The integration of GPU computing enables scalable deployment for real-time applications including telemedicine communication, intelligent virtual assistants, remote conferencing, hearing assistance systems, and industrial voice monitoring platforms.
This research contributes a unified computational framework that bridges acoustic quality assessment with adaptive optimization intelligence. The study further establishes that evaluation-oriented enhancement strategies provide improved resilience against signal variability while supporting efficient resource utilization in distributed communication infrastructures. The proposed architecture offers substantial implications for future intelligent audio systems requiring low-latency, high-fidelity speech reconstruction under complex operational conditions.
Keywords
Speech enhancement, acoustic signal reconstruction, adaptive optimization, Local Quality Evaluation
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Copyright (c) 2026 Dr. Elīna Ozoliņa

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