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All Journal Aviation Electronics, Information Technology, Telecommunications, Electricals, Controls (AVITEC) REKA ELKOMIKA: Jurnal Pengabdian kepada Masyarakat sudo Jurnal Teknik Informatika
Dinata, Hane Yorda
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Aerospace Engineering Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering

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Journal : sudo Jurnal Teknik Informatika

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Psychoacoustically-Weighted Adaptive Digital Filtering for Enhanced Speech Quality and Audio Size Efficiency Dinata, Hane Yorda; Laksita, Eldyana Citra
sudo Jurnal Teknik Informatika Vol. 5 No. 1 (2026): Edisi Maret
Publisher : Ilmu Bersama Center

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56211/sudo.v5i1.1373

Abstract

Balancing perceptual quality with computational efficiency remains challenging in speech enhancement systems. This research presents an adaptive filtering framework integrating psychoacoustic modeling with multi-stage noise reduction. The architecture combines spectral subtraction and Wiener filtering, modulated by Bark-scale perceptual weighting derived from critical band theory. Unlike conventional approaches, the system exploits frequency-dependent auditory sensitivity to concentrate processing on perceptually salient regions while reducing representation of masked components. Experimental validation across diverse acoustic conditions yielded an average SNR improvement of 4.2 dB over baseline techniques, with simultaneous 31.7% file size reduction through psychoacoustically-guided quantization. PESQ assessment produced a mean opinion score of 4.23, confirming excellent quality preservation. Convergence analysis revealed 23% faster adaptation attributed to perceptually-weighted cost functions. Robustness testing across white noise, babble, and environmental sounds demonstrated consistent performance with minimal variance, indicating strong generalization capability. These findings show that incorporating human auditory principles simultaneously improves perceptual quality, computational efficiency, and system adaptability—critical for bandwidth-constrained applications in mobile communications, streaming platforms, and assistive devices
Co-Authors Ash Shiddiq, Reza Nurfaudzan Faudzan, Muhammad Iqbal Galura Muhammad Suranegara Ichwan Nul Ichsan Jayadinata, Asep Kurnia Kheqal, Abdul Laksita, Eldyana Citra Nikawanti, Gia Syaifullah, Muhammad Wildan