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SU. G.. Bharitkar, T. Mauer, C. Oppenheimer, T. Wells, and D. Berfanger, "Bandwidth Extension with Auditory Filters and Block-Adaptive Analysis," Paper 9984, (2018 May.). doi: SU. G.. Bharitkar, T. Mauer, C. Oppenheimer, T. Wells, and D. Berfanger, "Bandwidth Extension with Auditory Filters and Block-Adaptive Analysis," Paper 9984, (2018 May.). doi:
Abstract: Bandwidth limits incurred by an audio signal due to low-excursion and narrow-bandwidth speakers reduces the perception of bass. A method to overcome this is to synthesize the harmonics of the fundamental frequency using side-chain processing. Depending on the input signal, intermodulation distortion could be introduced resulting in artifacts. A recent approach selects relevant portions of the low-frequency signal for reproduction using perceptually motivated filters, resulting in cleaner bass reproduction as confirmed through listening tests. However, one of the limitations is the need for large-duration frames or blocks (e.g., 5296 samples/block at 48 kHz) to obtain adequate frequency resolution at low-frequencies. In this paper we present an alternative approach that scales well in performance with respect to smaller block-sizes using 1/6-octave filterbank and power analysis.

@article{bharitkar2018bandwidth,
author={bharitkar, sunil g. and mauer, timothy and oppenheimer, charles and wells, teresa and berfanger, david},
journal={journal of the audio engineering society},
title={bandwidth extension with auditory filters and block-adaptive analysis},
year={2018},
volume={},
number={},
pages={},
doi={},
month={may},} @article{bharitkar2018bandwidth,
author={bharitkar, sunil g. and mauer, timothy and oppenheimer, charles and wells, teresa and berfanger, david},
journal={journal of the audio engineering society},
title={bandwidth extension with auditory filters and block-adaptive analysis},
year={2018},
volume={},
number={},
pages={},
doi={},
month={may},
abstract={bandwidth limits incurred by an audio signal due to low-excursion and narrow-bandwidth speakers reduces the perception of bass. a method to overcome this is to synthesize the harmonics of the fundamental frequency using side-chain processing. depending on the input signal, intermodulation distortion could be introduced resulting in artifacts. a recent approach selects relevant portions of the low-frequency signal for reproduction using perceptually motivated filters, resulting in cleaner bass reproduction as confirmed through listening tests. however, one of the limitations is the need for large-duration frames or blocks (e.g., 5296 samples/block at 48 khz) to obtain adequate frequency resolution at low-frequencies. in this paper we present an alternative approach that scales well in performance with respect to smaller block-sizes using 1/6-octave filterbank and power analysis.},}

TY - paper
TI - Bandwidth Extension with Auditory Filters and Block-Adaptive Analysis
SP - EP -
AU - Bharitkar, Sunil G.
AU - Mauer, Timothy
AU - Oppenheimer, Charles
AU - Wells, Teresa
AU - Berfanger, David
PY - 2018
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - May 2018 TY - paper
TI - Bandwidth Extension with Auditory Filters and Block-Adaptive Analysis
SP - EP -
AU - Bharitkar, Sunil G.
AU - Mauer, Timothy
AU - Oppenheimer, Charles
AU - Wells, Teresa
AU - Berfanger, David
PY - 2018
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - May 2018
AB - Bandwidth limits incurred by an audio signal due to low-excursion and narrow-bandwidth speakers reduces the perception of bass. A method to overcome this is to synthesize the harmonics of the fundamental frequency using side-chain processing. Depending on the input signal, intermodulation distortion could be introduced resulting in artifacts. A recent approach selects relevant portions of the low-frequency signal for reproduction using perceptually motivated filters, resulting in cleaner bass reproduction as confirmed through listening tests. However, one of the limitations is the need for large-duration frames or blocks (e.g., 5296 samples/block at 48 kHz) to obtain adequate frequency resolution at low-frequencies. In this paper we present an alternative approach that scales well in performance with respect to smaller block-sizes using 1/6-octave filterbank and power analysis.