Jonathan J Digby

• AUDIO SPECIALIST • RESEARCHER

Sound engineer Harry Proodian testing microphones in a Fox motion picture studio

Training and guidance in the use of Loudness Metering for live events and venues

audio
loudness
research
live events
sound systems
metering
measurement
I am able to offer guidance and management of sound system levels using EBU R 128 Loudness Metering1 as described in the original research paper2, and in various slide deck…
2026-10-10

Screenshot of MeterMaid R 128 loudness meter

EBU R 128 loudness meter software, multi-platform — a recommendation

audio
loudness
research
live events
sound systems
metering
measurement
A well-designed multi-platform EBU R 1281 compliant loudness meter has been coded by David Neal2.
The app meters any input device the OS exposes.
MeterMaid is available for…
2026-10-09

Coloured engraving from 1933 of measuring the sound levels in Paris, 12th March 1933

A call for Case Study opportunities

case study
audio
loudness
research
live events
sound systems
Please consider contributing to a case study if you plan on implementing the author’s Loudness Measures at any of your live events.
2026-01-24

Logo for University of Derby's Electro-Acoustic Research Laboratory --- EARLab

Using the DirectOut PRODIGY to manage loudness at live events

interests
audio
loudness
research
case study
live events
sound systems
engineering
A self-contained HTML slide deck for using the DirectOut PRODIGY — Multifunction Audio Processor to manage loudness at any upcoming live events. It can be viewed immediately…
2026-01-21

Movie director's canvas chair and acoustic megaphone

A movie sound effect trope: sound-system feedback

interests
audio
A trope sound effect is ‘a recurrent theme; a motif … to represent or interpret (something) in a figurative or metaphorical way’1.
2025-12-12

Logo of the Institute of Acoustics

‘Improved Localization for Binaural Recordings and Stereo Program Material Using “Blumlein shuffling”’

PGR
activities
research
published
Blumlein shuffling
near-coincident microphones
stereophonic
binaural
published
I had the pleasure of presenting this paper at the Institute of Acoustics’ conference: Reproduced Sound 2025, Harrogate, UK.
2025-12-03

Vintage photograph of two women measuring their yodelling level with a meter

Fair loudness-based measures for live events - a client proposal

PGR
activities
research
presentation
published
loudness
SPL
Announcing a short introduction to the Fair Loudness-based Measurement protocol written for live event producers and relevant stakeholders.
Click link to view the…
2025-05-21

Logo for University of Derby's Electro-Acoustic Research Laboratory - EARLab

Fair loudness measures for live events

PGR
activities
research
presentation
published
loudness
SPL
I have written an HTML presentation to accompany our research paper.
It’s linked toward its useful application with HELA Certified events.
Right-click link to download the…
2025-03-31

Graphic representation of Brownian motion travel

Audio Test Signals – Brownian noise

PGR
activities
research
audio files
published
loudness
SPL
Additional Content: Audio Test Signals for Acoustical Alignment, Listening Level
2025-03-23

University of Derby's coat of arms

On-campus, w/c 2025-01-27

PGR
activities
research
Here are the planned on-campus locations for my next round of experimental preparation work, in-room loudspeaker measurements, and audio recordings.
Faculty and student…
2025-01-31

Logo of the Institute of Acoustics

‘Enhanced Sound Level Monitoring at Live Events by Measuring Audio Program Loudness’

published
research
loudness
SPL
Concerts and events can use a Target Level loudness to optimize sound exposure by ensuring parity of loudness between acts and show elements (broadband loudness…
2024-11-12

Logo for University of Derby's Electro-Acoustic Research Laboratory - EARLab

On-campus, w/c 2024-09-30

news
PGR
activities
Here are the planned on-campus locations for my next round of experimental preparation work, in-room loudspeaker measurements, and audio recordings.
Faculty and student…
2024-09-30
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