Audibility of loudspeaker group-delay characteristics

Juho Liski*, Aki Mäkivirta, Vesa Välimäki

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

3 Citations (Scopus)
124 Downloads (Pure)


Loudspeaker impulse responses were studied using a paired-comparison listening test to learn about the audibility of the loudspeaker group-delay characteristics. Several modeled and six measured loudspeakers were included in this study. The impulse responses and their time-reversed versions were used in order to maximize the change in the temporal structure and group delay without affecting the magnitude spectrum, and the subjects were asked whether they could hear a difference. Additionally, the same impulse responses were compared after convolving them with a pink impulse, defined in this paper, which causes a low-frequency emphasis. The results give an idea of how much the group delay of a loudspeaker system can vary so that it is unlikely to cause audible effects in sound reproduction. Our results suggest that when the group delay in the frequency range from 300 Hz to 1 kHz is below 1.0 ms, it is inaudible. With low-frequency emphasis, the group delay variations can be heard more easily.

Original languageEnglish
Title of host publication144th Audio Engineering Society International Convention 2018
PublisherAudio Engineering Society
Number of pages10
ISBN (Print)9781510864740
Publication statusPublished - 1 Jan 2018
MoE publication typeA4 Article in a conference publication
EventAudio Engineering Society Convention - Milan, Italy
Duration: 23 May 201826 May 2018
Conference number: 144


ConferenceAudio Engineering Society Convention
Abbreviated titleAES


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