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S. Brachmanski, and M. Kin, "Assessment of Speech Quality in the Digital Audio Broadcasting (DAB+) System," Paper 8829, (2013 May.). doi: S. Brachmanski, and M. Kin, "Assessment of Speech Quality in the Digital Audio Broadcasting (DAB+) System," Paper 8829, (2013 May.). doi:
Abstract: The methods for assessment of speech quality fall into two classes: subjective and objective methods. This paper includes an overview of selected methods of subjective listening measurements (ACR, DCR) recommended by ITU-T. The influence of a bit-rate value on the sound quality was a subject of research presented in this paper. The influence of the Spectral Band Replication (SBR) process on the speech quality was also investigated. The tested samples were taken from the Digital Audio Broadcasting experimental emission in Poland as well as from an internet network. The subjective assessment for DAB speech signals has been performed with the use of both: ACR and DCR methods. It turned out that SBR process influences significantly the speech quality at the lower bit-rates making it as good as for higher bit-rates. It was also found that for higher bit-rate values (96 kbit/s, or higher), the use of both methods causes the different results.

@article{brachmanski2013assessment,
author={brachmanski, stefan and kin, maurycy},
journal={journal of the audio engineering society},
title={assessment of speech quality in the digital audio broadcasting (dab+) system},
year={2013},
volume={},
number={},
pages={},
doi={},
month={may},} @article{brachmanski2013assessment,
author={brachmanski, stefan and kin, maurycy},
journal={journal of the audio engineering society},
title={assessment of speech quality in the digital audio broadcasting (dab+) system},
year={2013},
volume={},
number={},
pages={},
doi={},
month={may},
abstract={the methods for assessment of speech quality fall into two classes: subjective and objective methods. this paper includes an overview of selected methods of subjective listening measurements (acr, dcr) recommended by itu-t. the influence of a bit-rate value on the sound quality was a subject of research presented in this paper. the influence of the spectral band replication (sbr) process on the speech quality was also investigated. the tested samples were taken from the digital audio broadcasting experimental emission in poland as well as from an internet network. the subjective assessment for dab speech signals has been performed with the use of both: acr and dcr methods. it turned out that sbr process influences significantly the speech quality at the lower bit-rates making it as good as for higher bit-rates. it was also found that for higher bit-rate values (96 kbit/s, or higher), the use of both methods causes the different results.},}

TY - paper
TI - Assessment of Speech Quality in the Digital Audio Broadcasting (DAB+) System
SP - EP -
AU - Brachmanski, Stefan
AU - Kin, Maurycy
PY - 2013
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - May 2013 TY - paper
TI - Assessment of Speech Quality in the Digital Audio Broadcasting (DAB+) System
SP - EP -
AU - Brachmanski, Stefan
AU - Kin, Maurycy
PY - 2013
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - May 2013
AB - The methods for assessment of speech quality fall into two classes: subjective and objective methods. This paper includes an overview of selected methods of subjective listening measurements (ACR, DCR) recommended by ITU-T. The influence of a bit-rate value on the sound quality was a subject of research presented in this paper. The influence of the Spectral Band Replication (SBR) process on the speech quality was also investigated. The tested samples were taken from the Digital Audio Broadcasting experimental emission in Poland as well as from an internet network. The subjective assessment for DAB speech signals has been performed with the use of both: ACR and DCR methods. It turned out that SBR process influences significantly the speech quality at the lower bit-rates making it as good as for higher bit-rates. It was also found that for higher bit-rate values (96 kbit/s, or higher), the use of both methods causes the different results.