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T. Zernicki, and M. Bartkowiak, "Audio Bandwidth Extension by Frequency Scaling of Sinusoidal Partials," Paper 7622, (2008 October.). doi: T. Zernicki, and M. Bartkowiak, "Audio Bandwidth Extension by Frequency Scaling of Sinusoidal Partials," Paper 7622, (2008 October.). doi:
Abstract: This paper describes a new technique of efficient coding of high-frequency signal components as an alternative to Spectral Band Replication. The main idea is to reconstruct the high frequency harmonic structure trajectories by using fundamental frequencies obtained at the encoder side. Audio signal is decomposed into narrow subbands by demodulation based on the local instantaneous frequency of individual partials. High frequency components are reconstructed by modulation of the baseband signals with appropriately scaled instantaneous frequencies. Such approach offers correct synthesis of rapidly changing sinusoids as well as proper reconstruction of harmonic structure in the high-frequency band. This technique performs also a correct energy adjustment of sinusoidal partials. High compression efficiency has been achieved and confirmed by listening tests.

@article{zernicki2008audio,
author={zernicki, tomasz and bartkowiak, maciej},
journal={journal of the audio engineering society},
title={audio bandwidth extension by frequency scaling of sinusoidal partials},
year={2008},
volume={},
number={},
pages={},
doi={},
month={october},} @article{zernicki2008audio,
author={zernicki, tomasz and bartkowiak, maciej},
journal={journal of the audio engineering society},
title={audio bandwidth extension by frequency scaling of sinusoidal partials},
year={2008},
volume={},
number={},
pages={},
doi={},
month={october},
abstract={this paper describes a new technique of efficient coding of high-frequency signal components as an alternative to spectral band replication. the main idea is to reconstruct the high frequency harmonic structure trajectories by using fundamental frequencies obtained at the encoder side. audio signal is decomposed into narrow subbands by demodulation based on the local instantaneous frequency of individual partials. high frequency components are reconstructed by modulation of the baseband signals with appropriately scaled instantaneous frequencies. such approach offers correct synthesis of rapidly changing sinusoids as well as proper reconstruction of harmonic structure in the high-frequency band. this technique performs also a correct energy adjustment of sinusoidal partials. high compression efficiency has been achieved and confirmed by listening tests.},}

TY - paper
TI - Audio Bandwidth Extension by Frequency Scaling of Sinusoidal Partials
SP - EP -
AU - Zernicki, Tomasz
AU - Bartkowiak, Maciej
PY - 2008
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - October 2008 TY - paper
TI - Audio Bandwidth Extension by Frequency Scaling of Sinusoidal Partials
SP - EP -
AU - Zernicki, Tomasz
AU - Bartkowiak, Maciej
PY - 2008
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - October 2008
AB - This paper describes a new technique of efficient coding of high-frequency signal components as an alternative to Spectral Band Replication. The main idea is to reconstruct the high frequency harmonic structure trajectories by using fundamental frequencies obtained at the encoder side. Audio signal is decomposed into narrow subbands by demodulation based on the local instantaneous frequency of individual partials. High frequency components are reconstructed by modulation of the baseband signals with appropriately scaled instantaneous frequencies. Such approach offers correct synthesis of rapidly changing sinusoids as well as proper reconstruction of harmonic structure in the high-frequency band. This technique performs also a correct energy adjustment of sinusoidal partials. High compression efficiency has been achieved and confirmed by listening tests.