Speech Bandwidth Extension Using DWT-FFT-Based Data Hiding
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Date
2020-04
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Mark
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Společnost pro radioelektronické inženýrství
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Abstract
A novel transform-domain speech bandwidth extension algorithm is proposed to transmit information about the missing speech frequencies over a hidden channel, i.e., the related encoded spectral envelope parameters are hidden within the narrowband speech signal using discrete wavelet transform-fast Fourier transform-based data hiding (DWTFFTBDH) technique. The hidden information is recovered reliably at the receiver to produce a wideband speech signal of much higher quality. Obtained results confirm the excellent reconstructed wideband speech quality of the proposed algorithm over traditional methods.
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Citation
Radioengineering. 2020 vol. 29, č. 1, s. 174-181. ISSN 1210-2512
https://www.radioeng.cz/fulltexts/2019/20_01_0174_0181.pdf
https://www.radioeng.cz/fulltexts/2019/20_01_0174_0181.pdf
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Peer-reviewed
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en