학술논문

Speech Bandwidth Enhancement Based on Spectral-Domain Approach
Document Type
Conference
Source
2023 International Conference on Computational Intelligence, Networks and Security (ICCINS) Computational Intelligence, Networks and Security (ICCINS), 2023 International Conference on. :1-6 Dec, 2023
Subject
Communication, Networking and Broadcast Technologies
Computing and Processing
Signal Processing and Analysis
Quantization (signal)
Bandwidth
Speech enhancement
Telephone sets
Broadband communication
Security
Spectral analysis
Spectral domain approach
Telephone networks
Speech quality
Speech bandwidth enhancement
Language
Abstract
Voice quality and understandability are both diminished by the telephone systems' limited voice bandwidth. The innovative speech bandwidth enhancement approach is suggested in this paper. To deliver a superior broad-band voice signal, the methodology employs a spectral domain approach. The restricted band speech signal conceals the missing speech's vocal tract properties. At the other end, the missing speech is retrieved to create a broad-band voice signal. The suggested approach is resilient to quantization and channel disturbances, according to theoretical and simulation evaluations. The obtained findings support the suggested method's superior reconstructed broad-band speech quality to conventional approaches.