Comparison of digital loudspeaker - equalization techniques
An overview of digital equalization techniques for loudspeaker systems is presented. The known algorithms are systematized and modified. Equalization is effected by a single digital filter for the on-axis loudspeaker response. Besides classical FIR and IIR digital filter structures,...
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| Format: | Article |
| Language: | English |
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Institute of Fundamental Technological Research Polish Academy of Sciences
2005-01-01
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| Series: | Archives of Acoustics |
| Online Access: | https://acoustics.ippt.pan.pl/index.php/aa/article/view/513 |
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| _version_ | 1849716071304527872 |
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| author | P. Dziechciński |
| author_facet | P. Dziechciński |
| author_sort | P. Dziechciński |
| collection | DOAJ |
| description | An overview of digital equalization techniques for
loudspeaker systems is presented. The known algorithms are systematized and
modified. Equalization is effected by a single digital filter for the on-axis
loudspeaker response. Besides classical FIR and IIR digital filter structures,
their warped versions (WFIR and WIIR) are used to build equalization systems.
Equalizers of different types are compared with regard to efficiency. Also
information about objective and listening-test assessments of the quality of
equalization obtained by the different equalizers is provided. Besides the
equalizer quality assessment techniques know from the literature, new
techniques, which better represent the properties of the human auditory system,
are proposed. For the new techniques better agreement between the objective
results and the listening-test ratings was obtained. On the basis of objective
assessments of 32 equalization systems carried out for two stereophonic pairs of
loudspeaker systems algorithms yielding the best results for each of the tested
filter structures (FIR, IIR, WFIR and WIIR) were selected and evaluated by
listening tests. Key words: equalizer, digital filter, loudspeaker system.
|
| format | Article |
| id | doaj-art-219b01eceb5e4be886cf4bb88651cfdd |
| institution | DOAJ |
| issn | 0137-5075 2300-262X |
| language | English |
| publishDate | 2005-01-01 |
| publisher | Institute of Fundamental Technological Research Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Acoustics |
| spelling | doaj-art-219b01eceb5e4be886cf4bb88651cfdd2025-08-20T03:13:08ZengInstitute of Fundamental Technological Research Polish Academy of SciencesArchives of Acoustics0137-50752300-262X2005-01-01302Comparison of digital loudspeaker - equalization techniquesP. Dziechciński0Wrocław University of Technology, Institute Telecommunications and AcousticsAn overview of digital equalization techniques for loudspeaker systems is presented. The known algorithms are systematized and modified. Equalization is effected by a single digital filter for the on-axis loudspeaker response. Besides classical FIR and IIR digital filter structures, their warped versions (WFIR and WIIR) are used to build equalization systems. Equalizers of different types are compared with regard to efficiency. Also information about objective and listening-test assessments of the quality of equalization obtained by the different equalizers is provided. Besides the equalizer quality assessment techniques know from the literature, new techniques, which better represent the properties of the human auditory system, are proposed. For the new techniques better agreement between the objective results and the listening-test ratings was obtained. On the basis of objective assessments of 32 equalization systems carried out for two stereophonic pairs of loudspeaker systems algorithms yielding the best results for each of the tested filter structures (FIR, IIR, WFIR and WIIR) were selected and evaluated by listening tests. Key words: equalizer, digital filter, loudspeaker system. https://acoustics.ippt.pan.pl/index.php/aa/article/view/513 |
| spellingShingle | P. Dziechciński Comparison of digital loudspeaker - equalization techniques Archives of Acoustics |
| title | Comparison of digital loudspeaker - equalization techniques |
| title_full | Comparison of digital loudspeaker - equalization techniques |
| title_fullStr | Comparison of digital loudspeaker - equalization techniques |
| title_full_unstemmed | Comparison of digital loudspeaker - equalization techniques |
| title_short | Comparison of digital loudspeaker - equalization techniques |
| title_sort | comparison of digital loudspeaker equalization techniques |
| url | https://acoustics.ippt.pan.pl/index.php/aa/article/view/513 |
| work_keys_str_mv | AT pdziechcinski comparisonofdigitalloudspeakerequalizationtechniques |