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The aim of this study was to investigate the impact of the DNN on speech intelligibility in speech-shaped noise (SSN) and multitalker babble (MTB) when the target speech was coming from the front and from the side. Subjective ratings of clarity, total impression, listening effort, and background noise awareness were also collected. Twenty adult participants with mild to moderately severe sensorineural hearing loss were fitted with hearing aids from a single manufacturer, programmed with four different settings that varied across combinations of microphone directionality (omnidirectional and directional beamforming) and noise reduction (off, traditional, DNN). Results showed that DNN, when combined with beamforming, consistently outperformed the other programs across all metrics. Outcomes were influenced by both noise type and spatial configuration. DNN was more effective in SSN than MTB. Beamforming was especially beneficial when the target speech came from the front. Listening in programs that included both DNN and beamforming together resulted in additional benefits shown in the outcome measures, most likely due to the beamforming improving the signal-to-noise ratio and providing a cleaner signal for the DNN to work with.<\/jats:p>","DOI":"10.1177\/23312165261449983","type":"journal-article","created":{"date-parts":[[2026,5,13]],"date-time":"2026-05-13T09:05:07Z","timestamp":1778663107000},"update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":1,"title":["The Effect of Deep Neural Network Implementation on Speech Recognition, Listening Effort, and Sound Quality in Older Adults With Mild to Moderately Severe Hearing Loss"],"prefix":"10.1177","volume":"30","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3109-6730","authenticated-orcid":false,"given":"Paula","family":"Folkeard","sequence":"first","affiliation":[{"name":"Western University"},{"name":"Western University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Vahid","family":"Ashkanichenarlogh","sequence":"additional","affiliation":[{"name":"Western University"},{"name":"Department of Electrical and Computer Engineering, Western University, London, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0534-2865","authenticated-orcid":false,"given":"Mohamed","family":"Rahme","sequence":"additional","affiliation":[{"name":"Western University"},{"name":"Western University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Vijay","family":"Parsa","sequence":"additional","affiliation":[{"name":"Western University"},{"name":"Western University"},{"name":"Department of Electrical and Computer Engineering, Western University, London, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Volker","family":"K\u00fchnel","sequence":"additional","affiliation":[{"name":"Sonova AG"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bilal","family":"Sheikh","sequence":"additional","affiliation":[{"name":"Department of Research and Development, Sonova Canada Inc."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jinyu","family":"Qian","sequence":"additional","affiliation":[{"name":"Department of Research and Development, Sonova Canada Inc."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0007-8238-9521","authenticated-orcid":false,"given":"Yu-Ying","family":"Sung","sequence":"additional","affiliation":[{"name":"Western University"},{"name":"Western University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2207-5279","authenticated-orcid":false,"given":"Susan","family":"Scollie","sequence":"additional","affiliation":[{"name":"Western University"},{"name":"Western University"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2026,5,13]]},"reference":[{"key":"e_1_3_2_2_1","doi-asserted-by":"publisher","DOI":"10.1109\/TASLP.2024.3393718"},{"key":"e_1_3_2_3_1","doi-asserted-by":"publisher","DOI":"10.1055\/s-0041-1735174"},{"key":"e_1_3_2_4_1","doi-asserted-by":"publisher","DOI":"10.1055\/s-0041-1735134"},{"key":"e_1_3_2_5_1","doi-asserted-by":"publisher","DOI":"10.1121\/10.0027747"},{"key":"e_1_3_2_6_1","doi-asserted-by":"publisher","DOI":"10.1177\/23312165251396644"},{"key":"e_1_3_2_7_1","doi-asserted-by":"publisher","DOI":"10.1044\/2023_AJA-23-00149"},{"key":"e_1_3_2_8_1","doi-asserted-by":"publisher","DOI":"10.1097\/00003446-198808000-00005"},{"key":"e_1_3_2_9_1","doi-asserted-by":"publisher","DOI":"10.1055\/s-0040-1718707"},{"key":"e_1_3_2_10_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41598-023-29871-8"},{"key":"e_1_3_2_11_1","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0278170"},{"key":"e_1_3_2_12_1","unstructured":"Dobyan B. 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