The University of Southampton
University of Southampton Institutional Repository

The ‘Bass Transmission Index’: a new concept for evaluating loudspeaker performance

The ‘Bass Transmission Index’: a new concept for evaluating loudspeaker performance
The ‘Bass Transmission Index’: a new concept for evaluating loudspeaker performance
Loudspeaker design is a trade-off between optimising different aspects of performance with regard to the intended application. For musical mix monitoring, the ability to accurately reproduce the temporal envelope of dynamic signals is a key factor in helping to produce a balance of instruments
which will transfer well to other reproduction systems. Despite this, the industry standard still prioritises representations of the extension and flatness of the frequency response magnitude over transient accuracy, even for loudspeakers intended for professional use. This paper presents a method called the Bass Transmission Index (BTI), which aims to redress this balance and make it easier to evaluate and compare loudspeaker reproduction accuracy at low frequencies: a part of the audio spectrum that is crucial to most types of modern recorded music. Background and key information on the development of the method is presented, followed by an explanation of example data returned from analysis of some measured mix monitors.
loudspeakers, bass, evaluation, modulation transfer function, MTF
Harris, Lara
263ab737-ed06-43c2-aa21-57b9db3f6ffb
Newell, Philip
23f68332-e384-4c40-9704-9e5fc264e26f
Holland, Keith
90dd842b-e3c8-45bb-865e-3e7da77ec703
Harris, Lara
263ab737-ed06-43c2-aa21-57b9db3f6ffb
Newell, Philip
23f68332-e384-4c40-9704-9e5fc264e26f
Holland, Keith
90dd842b-e3c8-45bb-865e-3e7da77ec703

Harris, Lara, Newell, Philip and Holland, Keith (2018) The ‘Bass Transmission Index’: a new concept for evaluating loudspeaker performance. Reproduced Sound 2018: Putting Sound in its Place, Bristol, United Kingdom. 27 - 29 Nov 2018. 14 pp .

Record type: Conference or Workshop Item (Paper)

Abstract

Loudspeaker design is a trade-off between optimising different aspects of performance with regard to the intended application. For musical mix monitoring, the ability to accurately reproduce the temporal envelope of dynamic signals is a key factor in helping to produce a balance of instruments
which will transfer well to other reproduction systems. Despite this, the industry standard still prioritises representations of the extension and flatness of the frequency response magnitude over transient accuracy, even for loudspeakers intended for professional use. This paper presents a method called the Bass Transmission Index (BTI), which aims to redress this balance and make it easier to evaluate and compare loudspeaker reproduction accuracy at low frequencies: a part of the audio spectrum that is crucial to most types of modern recorded music. Background and key information on the development of the method is presented, followed by an explanation of example data returned from analysis of some measured mix monitors.

Text
RS2018_HarrisEtAl_Final - Version of Record
Download (455kB)

More information

Published date: November 2018
Venue - Dates: Reproduced Sound 2018: Putting Sound in its Place, Bristol, United Kingdom, 2018-11-27 - 2018-11-29
Keywords: loudspeakers, bass, evaluation, modulation transfer function, MTF

Identifiers

Local EPrints ID: 426110
URI: http://eprints.soton.ac.uk/id/eprint/426110
PURE UUID: ed3e188c-8cfd-4dbd-809d-c95d4d690aba
ORCID for Keith Holland: ORCID iD orcid.org/0000-0001-7439-2375

Catalogue record

Date deposited: 14 Nov 2018 17:30
Last modified: 20 Jul 2019 04:05

Export record

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×