Anais De XXXVII Simpósio Brasileiro De Telecomunicações E Processamento De Sinais 2019
DOI: 10.14209/sbrt.2019.1570539306
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Redução de ruído em aparelhos auditivos binaurais baseada no MWF e na coerência interaural

Abstract: Resumo-O filtro de Wiener multicanal (MWF) tem sido extensivamente utilizado para redução de ruído em aparelhos auditivos binaurais. Entretanto, apresenta a desvantagem de distorcer as pistas acústicas do ruído residual, alterando a percepção da localização da fonte sonora pelo usuário. Este trabalho propõe uma variação do MWF baseada na coerência interaural. Resultados preliminares indicam que o novo método permite a preservação do cenário acústico original ao custo de uma diminuição controlada da capacidade … Show more

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“…Despite the presented objective criteria for several values of  , further listening experiments indicate that extremely higher values of the weighting factor ( ≫ 2.510 4 ) decrease noise reduction, overall quality and intelligibility performance, as well as distort the perception of the true azimuth of the desired speech source. This occurs because the prevalence of J v CB over J WF in (13).…”
Section: B Results From Psychoacoustic Experimentsmentioning
confidence: 99%
“…Despite the presented objective criteria for several values of  , further listening experiments indicate that extremely higher values of the weighting factor ( ≫ 2.510 4 ) decrease noise reduction, overall quality and intelligibility performance, as well as distort the perception of the true azimuth of the desired speech source. This occurs because the prevalence of J v CB over J WF in (13).…”
Section: B Results From Psychoacoustic Experimentsmentioning
confidence: 99%