Evaluation of feedback reduction techniques in hearing aids based on physical performance measures.
Identifieur interne : 000D70 ( Main/Curation ); précédent : 000D69; suivant : 000D71Evaluation of feedback reduction techniques in hearing aids based on physical performance measures.
Auteurs : Ann Spriet [Belgique] ; Marc Moonen ; Jan WoutersSource :
- The Journal of the Acoustical Society of America ; 2010.
English descriptors
- KwdEn :
- MESH :
Abstract
This paper presents a physical evaluation of four feedback cancellation techniques in commercial hearing aids and two implementations of a recently developed feedback cancellation algorithm. Based on physical measures for detecting instability, oscillations and distortion, three performance aspects were measured: 1) the added stable gain compared to the hearing aid operating without feedback reduction for white noise as well as for spectrally colored input signals in two static acoustic conditions, 2) the amount of feedback, oscillations and distortion at gain values below the maximum stable gain, 3) the ability to track feedback path changes. Added stable gains between 3 dB and 26 dB were identified. Five of the six techniques achieve worse feedback reduction for a tonal opera input signal than for a speech input signal. Preventing the feedback canceller to drift away from an initial feedback path measurement results in improved performance for tonal signals at the expense of a worse feedback reduction in the acoustic conditions that differ from the condition for which the initialization was performed, as well as a worse tracking of feedback path changes. Repeated measures indicated that the reproducibility of the test set-up is crucial, in particular when the hearing aid operates close to instability.
DOI: 10.1121/1.3458850
PubMed: 20815460
Links toward previous steps (curation, corpus...)
- to stream PubMed, to step Corpus: Pour aller vers cette notice dans l'étape Curation :000347
- to stream PubMed, to step Curation: Pour aller vers cette notice dans l'étape Curation :000347
- to stream PubMed, to step Checkpoint: Pour aller vers cette notice dans l'étape Curation :000350
- to stream Ncbi, to step Merge: Pour aller vers cette notice dans l'étape Curation :000804
- to stream Ncbi, to step Curation: Pour aller vers cette notice dans l'étape Curation :000804
- to stream Ncbi, to step Checkpoint: Pour aller vers cette notice dans l'étape Curation :000804
- to stream Main, to step Merge: Pour aller vers cette notice dans l'étape Curation :000D78
Links to Exploration step
pubmed:20815460Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Evaluation of feedback reduction techniques in hearing aids based on physical performance measures.</title><author><name sortKey="Spriet, Ann" sort="Spriet, Ann" uniqKey="Spriet A" first="Ann" last="Spriet">Ann Spriet</name><affiliation wicri:level="1"><nlm:affiliation>ESAT/SISTA, Katholieke Universiteit Leuven, Kasteelpark Arenberg 10, B-3001 Leuven, Belgium. ann.spriet@nxp.com</nlm:affiliation><country xml:lang="fr">Belgique</country><wicri:regionArea>ESAT/SISTA, Katholieke Universiteit Leuven, Kasteelpark Arenberg 10, B-3001 Leuven</wicri:regionArea><wicri:noRegion>B-3001 Leuven</wicri:noRegion></affiliation></author><author><name sortKey="Moonen, Marc" sort="Moonen, Marc" uniqKey="Moonen M" first="Marc" last="Moonen">Marc Moonen</name></author><author><name sortKey="Wouters, Jan" sort="Wouters, Jan" uniqKey="Wouters J" first="Jan" last="Wouters">Jan Wouters</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2010">2010</date><idno type="doi">10.1121/1.3458850</idno><idno type="RBID">pubmed:20815460</idno><idno type="pmid">20815460</idno><idno type="wicri:Area/PubMed/Corpus">000347</idno><idno type="wicri:Area/PubMed/Curation">000347</idno><idno type="wicri:Area/PubMed/Checkpoint">000350</idno><idno type="wicri:Area/Ncbi/Merge">000804</idno><idno type="wicri:Area/Ncbi/Curation">000804</idno><idno type="wicri:Area/Ncbi/Checkpoint">000804</idno><idno type="wicri:Area/Main/Merge">000D78</idno><idno type="wicri:Area/Main/Curation">000D70</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Evaluation of feedback reduction techniques in hearing aids based on physical performance measures.</title><author><name sortKey="Spriet, Ann" sort="Spriet, Ann" uniqKey="Spriet A" first="Ann" last="Spriet">Ann Spriet</name><affiliation wicri:level="1"><nlm:affiliation>ESAT/SISTA, Katholieke Universiteit Leuven, Kasteelpark Arenberg 10, B-3001 Leuven, Belgium. ann.spriet@nxp.com</nlm:affiliation><country xml:lang="fr">Belgique</country><wicri:regionArea>ESAT/SISTA, Katholieke Universiteit Leuven, Kasteelpark Arenberg 10, B-3001 Leuven</wicri:regionArea><wicri:noRegion>B-3001 Leuven</wicri:noRegion></affiliation></author><author><name sortKey="Moonen, Marc" sort="Moonen, Marc" uniqKey="Moonen M" first="Marc" last="Moonen">Marc Moonen</name></author><author><name sortKey="Wouters, Jan" sort="Wouters, Jan" uniqKey="Wouters J" first="Jan" last="Wouters">Jan Wouters</name></author></analytic><series><title level="j">The Journal of the Acoustical Society of America</title><idno type="e-ISSN">1520-8524</idno><imprint><date when="2010" type="published">2010</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Acoustic Stimulation</term><term>Algorithms</term><term>Artifacts</term><term>Equipment Design</term><term>Feedback</term><term>Hearing Aids</term><term>Materials Testing</term><term>Models, Theoretical</term><term>Noise</term><term>Signal Processing, Computer-Assisted</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Acoustic Stimulation</term><term>Algorithms</term><term>Artifacts</term><term>Equipment Design</term><term>Feedback</term><term>Hearing Aids</term><term>Materials Testing</term><term>Models, Theoretical</term><term>Noise</term><term>Signal Processing, Computer-Assisted</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">This paper presents a physical evaluation of four feedback cancellation techniques in commercial hearing aids and two implementations of a recently developed feedback cancellation algorithm. Based on physical measures for detecting instability, oscillations and distortion, three performance aspects were measured: 1) the added stable gain compared to the hearing aid operating without feedback reduction for white noise as well as for spectrally colored input signals in two static acoustic conditions, 2) the amount of feedback, oscillations and distortion at gain values below the maximum stable gain, 3) the ability to track feedback path changes. Added stable gains between 3 dB and 26 dB were identified. Five of the six techniques achieve worse feedback reduction for a tonal opera input signal than for a speech input signal. Preventing the feedback canceller to drift away from an initial feedback path measurement results in improved performance for tonal signals at the expense of a worse feedback reduction in the acoustic conditions that differ from the condition for which the initialization was performed, as well as a worse tracking of feedback path changes. Repeated measures indicated that the reproducibility of the test set-up is crucial, in particular when the hearing aid operates close to instability.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Wicri/Musique/explor/OperaV1/Data/Main/Curation
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 000D70 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Curation/biblio.hfd -nk 000D70 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= Wicri/Musique
|area= OperaV1
|flux= Main
|étape= Curation
|type= RBID
|clé= pubmed:20815460
|texte= Evaluation of feedback reduction techniques in hearing aids based on physical performance measures.
}}
Pour générer des pages wiki
HfdIndexSelect -h $EXPLOR_AREA/Data/Main/Curation/RBID.i -Sk "pubmed:20815460" \
| HfdSelect -Kh $EXPLOR_AREA/Data/Main/Curation/biblio.hfd \
| NlmPubMed2Wicri -a OperaV1
| This area was generated with Dilib version V0.6.21. |  |