Low Complexity Methods for Robust Stereo-to-Mono Down-mixing
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PA. MA. Maben, C. Borß, B. Edler, and G. Fuchs, "Low Complexity Methods for Robust Stereo-to-Mono Down-mixing," Paper 10578, (2022 May.). doi:
PA. MA. Maben, C. Borß, B. Edler, and G. Fuchs, "Low Complexity Methods for Robust Stereo-to-Mono Down-mixing," Paper 10578, (2022 May.). doi:
Abstract: Stereo to mono down-mix is a key component of parametric stereo coding to drastically reduce the bit rate, but at the same time it is also an irreversible process that is a potential source of undesirable artifacts. This paper aims to reduce typical distortions induced by down-mixing, such as signal cancellation, comb filtering or unnatural instabilities. Two down-mixing methods are designed with different trade-offs between natural timbre and energy preservation based on simple rules that ensure low complexity. The results of a listening test show that both the proposed methods have a substantial advantage over the passive down-mix, while being very competitive compared to more computationally demanding active down-mixing approaches. The proposed methods are, therefore, particularly well suited to low complexity stereo coding schemes, such as those required for communication applications.
@article{maben2022low,
author={maben, pallavi maben and borß, christian and edler, bernd and fuchs, guillaume},
journal={journal of the audio engineering society},
title={low complexity methods for robust stereo-to-mono down-mixing},
year={2022},
volume={},
number={},
pages={},
doi={},
month={may},}
@article{maben2022low,
author={maben, pallavi maben and borß, christian and edler, bernd and fuchs, guillaume},
journal={journal of the audio engineering society},
title={low complexity methods for robust stereo-to-mono down-mixing},
year={2022},
volume={},
number={},
pages={},
doi={},
month={may},
abstract={stereo to mono down-mix is a key component of parametric stereo coding to drastically reduce the bit rate, but at the same time it is also an irreversible process that is a potential source of undesirable artifacts. this paper aims to reduce typical distortions induced by down-mixing, such as signal cancellation, comb filtering or unnatural instabilities. two down-mixing methods are designed with different trade-offs between natural timbre and energy preservation based on simple rules that ensure low complexity. the results of a listening test show that both the proposed methods have a substantial advantage over the passive down-mix, while being very competitive compared to more computationally demanding active down-mixing approaches. the proposed methods are, therefore, particularly well suited to low complexity stereo coding schemes, such as those required for communication applications.},}
TY - paper
TI - Low Complexity Methods for Robust Stereo-to-Mono Down-mixing
SP -
EP -
AU - Maben, Pallavi Maben
AU - Borß, Christian
AU - Edler, Bernd
AU - Fuchs, Guillaume
PY - 2022
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - May 2022
TY - paper
TI - Low Complexity Methods for Robust Stereo-to-Mono Down-mixing
SP -
EP -
AU - Maben, Pallavi Maben
AU - Borß, Christian
AU - Edler, Bernd
AU - Fuchs, Guillaume
PY - 2022
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - May 2022
AB - Stereo to mono down-mix is a key component of parametric stereo coding to drastically reduce the bit rate, but at the same time it is also an irreversible process that is a potential source of undesirable artifacts. This paper aims to reduce typical distortions induced by down-mixing, such as signal cancellation, comb filtering or unnatural instabilities. Two down-mixing methods are designed with different trade-offs between natural timbre and energy preservation based on simple rules that ensure low complexity. The results of a listening test show that both the proposed methods have a substantial advantage over the passive down-mix, while being very competitive compared to more computationally demanding active down-mixing approaches. The proposed methods are, therefore, particularly well suited to low complexity stereo coding schemes, such as those required for communication applications.
Stereo to mono down-mix is a key component of parametric stereo coding to drastically reduce the bit rate, but at the same time it is also an irreversible process that is a potential source of undesirable artifacts. This paper aims to reduce typical distortions induced by down-mixing, such as signal cancellation, comb filtering or unnatural instabilities. Two down-mixing methods are designed with different trade-offs between natural timbre and energy preservation based on simple rules that ensure low complexity. The results of a listening test show that both the proposed methods have a substantial advantage over the passive down-mix, while being very competitive compared to more computationally demanding active down-mixing approaches. The proposed methods are, therefore, particularly well suited to low complexity stereo coding schemes, such as those required for communication applications.
Open Access
Authors:
Maben, Pallavi Maben; Borß, Christian; Edler, Bernd; Fuchs, Guillaume
Affiliations:
Fraunhofer Institute for Integrated Circuits IIS, Erlangen, Germany; Ittiam Systems Pvt. Ltd., Bengaluru, India(See document for exact affiliation information.)
AES Convention:
152 (May 2022)
Paper Number:
10578
Publication Date:
May 2, 2022Import into BibTeX
Subject:
Audio Synthesis & Audio Effects
Permalink:
http://www.aes.org/e-lib/browse.cfm?elib=21691