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Users of Remote Conferencing and Compression of Sound Dynamics : Auditory Effects

ConditionAuditory Perception
Trial statusRecruiting
Trial phaseNot listed
Trial typeObservational
Biological sexAll
Age18+
SponsorInstitut Pasteur

About this trial

The COMPRESSED project is a descriptive, bi-centric and non-invasive study carried out by the CERIAH - IDA - Institut Pasteur and the Haute École Léonard de Vinci in Brussels on volunteer participants identified in two groups :

* be subject to high exposure to compressed sound, as defined by professional participation in events on broadcast platforms using sound signal processing systems, over the last 3 years, * be subject to moderate or limited exposure to compressed and manipulated sound, equivalent to that of a student following certain distance learning courses. on a videoconferencing platform, alternating with other face-to-face courses, with the ability to listen during breaks, which have been taught for a maximum of 2 years.

The main objective of the COMPRESSED study is to evaluate the auditory effects of exposure to manipulated sounds (compression, filtering, equalisation, accentuation, etc.) from sound distribution platforms on the auditory system of participants who are regularly exposed to these sounds as a result of their professional activity.

Eligibility criteria

This trial accepts healthy volunteers

Qualifiers

Age 18 or over,

Work with platforms using sound signal processing systems,

Fluent in English,

Fluent in French,

Disqualifiers

Conductive or mixed hearing loss, i.e. where the hearing loss affects both the outer and/or middle ear and the inner ear.

Have an asymmetric hearing loss, i.e. a difference in average hearing loss between the left and right ear of more than 20 dB,

Have a history of otitis and/or an ENT disease that permanently affects hearing (vestibular schwannoma, Ménière's disease, sudden or fluctuating deafness, congenital hypoacusis),

Not fluent in English

Trial population

Subjects with sustained exposure to compressed sounds, as defined by professional participation in broadcast platform events using sound signal processing systems, over the last 3 years, Or Subjects with moderate or limited exposure to compressed and manipulated sound, equivalent to that of a student taking distance-learning courses on a videoconferencing platform, alternating with other face-to-face courses, with the possibility of pauses in listening, exposed for a maximum of 2 years.

Trial design

Design model

Cohort

Time perspective

Prospective

Treatments tested in this trial

  • Audiological profile

    Other intervention

    Video otoscopy Tympanometry High-frequency tonal audiometry

  • Hearing self-assessments

    Other intervention

    Hearing skills questionnaire Subjective assessment of tinnitus using a visual analogue scale Self-questionnaire on the impact of tinnitus Hyperacusis self-questionnaire

  • Objective and subjective audiological tests

    Other intervention

    Acoustic Omission Measurement of the stapedial reflex by tympanometry High-frequency tonal audiometry - exposed ear only Speech audiometry in noise Tinnitus and subjective discomfort thresholds Psychoacoustic intensity perception test

  • Self-assessment of exposure sound quality

    Other intervention

    A self-assessment of the sound quality of the manipulated sounds heard during the exhibition will be carried out during the second follow-up visit. The elements on which the participant will be asked to make a qualitative judgement will relate to intelligibility difficulties or not; background noise (these two items in the form of a mark between 0 and 10); the clear, muffled or shrill nature of the sounds, their resonant or saturated side.

Treatment groups

200 Participants
are divided into 2 treatment groups
Group A: High exposure to compressed sound4 interventions
Group B: Moderate or limited exposure to compressed sound4 interventions

Trial outcomes

Primary outcomes

1

Hearing assessments of participants exposed to manipulated sounds after and before exposure

Measurement of the difference between the hearing assessments of participants exposed to manipulated sounds after and before exposure

Time frame
2 weeks

Secondary outcomes

1

Audiometric thresholds in pure tone from 125 to 8000 Hz in the subject's exposed ear before and approximately one hour after exposure,

Measurement of the difference between audiometric thresholds in pure tone from 125 to 8000 Hz in the subject's exposed ear before and approximately one hour after exposure,

Time frame
2 weeks
2

Difference between the threshold of the protective reflex of the auditory pathways (middle ear muscles) measured by impedancemetry in the exposed ear when a contralateral noise is presented for a few seconds.

A contralateral noise is a low-pass filtered white noise with a cut-off at 3 kHz.

Time frame
2 weeks
3

Levels of otoemissions in acoustic distortion products in the exposed ear in response to pure tone sound stimuli

Comparison of the levels of otoemissions in acoustic distortion products in the exposed ear in response to pure tone sound stimuli at 65 dB SPL around 1, 2, 3 and 4 kHz, before and approximately one hour after exposure.

Time frame
2 weeks
4

Tinnitus or auditory distortion (hyperacusis) reported by participants before and after exposure.

Measurement of the difference in the perception of tinnitus or auditory distortion (hyperacusis) reported by participants before and after exposure.

Time frame
2 weeks

Other outcomes

Sponsors and contacts

Click on the lead sponsor to view all of their trials.

Institut Pasteur

Lead sponsor

Institut de l'Audition

Collaborator

Source ClinicalTrials.gov
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