Jove
Visualize
Contact Us

Related Experiment Videos

Relations between speech intelligibility and psychoacoustical modulation transfer function (PMTF).

B Hagerman1, A Olofsson, A C Lindblad

  • 1Department of Technical Audiology, Karolinska Institutet, Stockholm, Sweden.

Scandinavian Audiology
|January 1, 1987
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Patient-reported perceptions of care after the introduction of a new advanced cancer nursing role in Sweden.

European journal of oncology nursing : the official journal of European Oncology Nursing Society·2019
Same author

Increased vitamin plasma levels in Swedish military personnel treated with nutrients prior to automatic weapon training.

Noise & health·2011
Same author

Designed fluorescent probes reveal interactions between amyloid-beta(1-40) peptides and GM1 gangliosides in micelles and lipid vesicles.

Biophysical journal·2010
Same author

Formation of cytotoxic transthyretin is not dependent on inter-molecular disulphide bridges commonly found within the amyloid form.

Amyloid : the international journal of experimental and clinical investigation : the official journal of the International Society of Amyloidosis·2008
Same author

The myxoid liposarcoma FUS-DDIT3 fusion oncoprotein deregulates NF-kappaB target genes by interaction with NFKBIZ.

Oncogene·2008
Same author

'If only I manage to get home I'll get better'--interviews with stroke patients after emergency stay in hospital on their experiences and needs.

Clinical rehabilitation·2005
Same journal

Vision and hearing in old age.

Scandinavian audiology·2002
Same journal

Two families with phenotypically different hereditary low frequency hearing impairment: longitudinal data and linkage analysis.

Scandinavian audiology·2002
Same journal

Age and noise-induced hearing loss.

Scandinavian audiology·2002
Same journal

Bilateral hearing aids--effects and consequences from a user perspective.

Scandinavian audiology·2002
Same journal

Threshold-based fitting methods for non-linear (WDRC) hearing instruments--comparison of acoustic characteristics.

Scandinavian audiology·2002
Same journal

Will hearing healthcare be affordable in the new millennium.

Scandinavian audiology·2001
See all related articles
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Researchers developed a psycho-acoustical modulation transfer function (PMTF) to predict speech intelligibility. The PMTF showed promising correlations with speech discrimination scores, suggesting its potential for audiological applications.

Area of Science:

  • Audiology
  • Psychoacoustics
  • Speech Science

Background:

  • The modulation transfer function (MTF) effectively predicts speech intelligibility in transmission channels.
  • Extending MTF to include auditory perception is crucial for understanding speech intelligibility in complex listening environments.

Purpose of the Study:

  • To measure the psycho-acoustical modulation transfer function (PMTF) in normal-hearing and hearing-impaired individuals.
  • To calculate psycho-acoustical speech transmission indices (PSTIs) based on PMTF measurements.
  • To assess the correlation between PSTIs and objective measures of speech perception.

Main Methods:

  • Tone thresholds were measured in the presence of modulated and unmodulated noise across octave frequencies (500-4,000 Hz).
  • Six modulation frequencies (1-50 Hz) were employed using octave-filtered noise.

Related Experiment Videos

  • PMTFs and PSTIs were calculated from the threshold measurements.

    • Main Results:

    • A high correlation (0.85) was found between speech discrimination scores in quiet and the calculated PSTI.
    • A moderate correlation (0.71) was observed between speech reception thresholds in noise and PSTI.
    • Fatigue effects presented challenges, indicating a need for methodological refinement.

    Conclusions:

    • The developed PMTF and resulting PSTI show potential as predictors of speech intelligibility.
    • The strong correlation with speech discrimination in quiet is promising for audiological applications.
    • Further research is needed to optimize the methodology and mitigate fatigue effects for improved reliability.