Evidence map›Paper›PMID 34197513›Full record

Observational studyPloS one2021

Influence of surgical and N95 face masks on speech perception and listening effort in noise.

Torsten Rahne, Laura Fröhlich, Stefan Plontke, Luise Wagner

Open access · goldAbstract readObservational Study
In one paragraph

Observational study in PloS one, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
10.1field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

34 citing papers in PubMed, 86 citations in OpenAlex.

  1. Trial
  2. Listening effort measurement by pupillometry under dual-task paradigms: the effect of auditory spectral resolution.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2026
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  17. Influence of face masks on recalibration of phonetic categories.Attention, perception & psychophysics · 2023
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

Torsten RahneDepartment of Otorhinolaryngology, University Hospital Halle (Saale), Martin Luther University Halle-Wittenberg, Halle (Saale), Germany.ORCID 0000-0003-1859-5623
Laura FröhlichDepartment of Otorhinolaryngology, University Hospital Halle (Saale), Martin Luther University Halle-Wittenberg, Halle (Saale), Germany.
Stefan PlontkeDepartment of Otorhinolaryngology, University Hospital Halle (Saale), Martin Luther University Halle-Wittenberg, Halle (Saale), Germany.
Luise WagnerDepartment of Otorhinolaryngology, University Hospital Halle (Saale), Martin Luther University Halle-Wittenberg, Halle (Saale), Germany.
Martin Luther University Halle-Wittenberg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Daily-life conversation relies on speech perception in quiet and noise. Because of the COVID-19 pandemic, face masks have become mandatory in many situations. Acoustic attenuation of sound pressure by the mask tissue reduces speech perception ability, especially in noisy situations. Masks also can impede the process of speech comprehension by concealing the movements of the mouth, interfering with lip reading. In this prospective observational, cross-sectional study including 17 participants with normal hearing, we measured the influence of acoustic attenuation caused by medical face masks (mouth and nose protection) according to EN 14683 and of N95 masks according to EN 1149 (EN 14683) on the speech recognition threshold and listening effort in various types of background noise. Averaged over all noise signals, a surgical mask significantly reduced the speech perception threshold in noise was by 1.6 dB (95% confidence interval [CI], 1.0, 2.1) and an N95 mask reduced it significantly by 2.7 dB (95% CI, 2.2, 3.2). Use of a surgical mask did not significantly increase the 50% listening effort signal-to-noise ratio (increase of 0.58 dB; 95% CI, 0.4, 1.5), but use of an N95 mask did so significantly, by 2.2 dB (95% CI, 1.2, 3.1). In acoustic measures, mask tissue reduced amplitudes by up to 8 dB at frequencies above 1 kHz, whereas no reduction was observed below 1 kHz. We conclude that face masks reduce speech perception and increase listening effort in different noise signals. Together with additional interference because of impeded lip reading, the compound effect of face masks could have a relevant impact on daily life communication even in those with normal hearing.

Indexed as

N95 RespiratorsSpeech PerceptionAdultAuditory PerceptionCommunicationCOVID-19Cross-Sectional StudiesFemaleHearingHumansMaleNoiseSignal-To-Noise RatioYoung Adult

Identifiers

PMID34197513
PMCPMC8248731
OpenAlexW3135960935

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.