Modulation masking release using the Brazilian-Portuguese HINT: Psychometric functions and the effect of speech time compression

Grose, John H.; Griz, Silvana Maria Sobral; Pacífico, Fernando Augusto; Advíncula, Karina Paes; Menezes, Denise Costa

doi:10.3109/14992027.2014.986692

Cited by 10 publications

(18 citation statements)

References 36 publications

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“…This interaction between the speech and masker modulation rate is further supported by Grose et al (2015) who time-compressed the target talker, rather than the modulated noise. In that study they found reduced MR with 50% time compression which resulted in the primary speech fluctuations approximating the 10-Hz fluctuation rate of the masker.…”

Section: A Natural Conditionmentioning

confidence: 84%

Modulation masking and glimpsing of natural and vocoded speech during single-talker modulated noise: Effect of the modulation spectrum

Fogerty¹,

Xu²,

Gibbs³

2016

The Journal of the Acoustical Society of America

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Compared to notionally steady-state noise, modulated maskers provide a perceptual benefit for speech recognition, in part due to preserved speech information during the amplitude dips of the masker. However, overlap in the modulation spectrum between the target speech and the competing modulated masker may potentially result in modulation masking, and thereby offset the release from energetic masking. The current study investigated masking release provided by single-talker modulated noise. The overlap in the modulation spectra of the target speech and the modulated noise masker was varied through time compression or expansion of the competing masker. Younger normal hearing adults listened to sentences that were unprocessed or noise vocoded to primarily limit speech recognition to the preserved temporal envelope cues. For unprocessed speech, results demonstrated improved performance with masker modulation spectrum shifted up or down compared to the target modulation spectrum, except for the most extreme time expansion. For vocoded speech, significant masking release was observed with the slowest masker rate. Perceptual results combined with acoustic analyses of the preserved glimpses of the target speech suggest contributions of modulation masking and cognitive-linguistic processing as factors contributing to performance.

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Section: A Natural Conditionmentioning

confidence: 84%

Modulation masking and glimpsing of natural and vocoded speech during single-talker modulated noise: Effect of the modulation spectrum

Fogerty¹,

Xu²,

Gibbs³

2016

The Journal of the Acoustical Society of America

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“…A third aspect that has been observed in the study of MMR is speech-to-noise ratio (SNR). Several studies have shown that, for listeners with normal hearing, MMR decreases as SNR increases (11) .…”

Section: Introductionmentioning

confidence: 99%

Efeito da idade no processamento auditivo temporal: benefício da modulação do mascaramento e efeito do pós-mascaramento

Advíncula

Menezes

Pacífico

et al. 2018

Audiol., Commun. Res.

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RESUMO Objetivo Investigar o efeito da idade no benefício da modulação do ruído mascarante (masking release) e no pós-mascaramento ( forward masking). Métodos Participaram da pesquisa jovens (média de idade de 18 anos e quatro meses) e idosos (média de idade de 64 anos e três meses) falantes nativos do Português Brasileiro e com audição normal. Mediante uso de sentenças da versão brasileira do Hearing in Noise Test, determinou-se, para ambos os grupos, limiares de reconhecimento em presença de ruído estável e em presença de ruído modulado em amplitude (10 Hz). Para a pesquisa do pós-macaramento, foram determinados limiares auditivos em intervalos de tempo de 4, 16, 64 e 128 milissegundos, após a interrupção do ruído. Para avaliar a normalidade dos resultados obtidos, foi aplicado o teste de Shapiro-Wilk. Nas variáveis em que a normalidade foi indicada, aplicou-se o teste t de Student para amostras independentes e nos casos em que a normalidade não foi encontrada, aplicou-se o teste de Mann-Whitney. Foi considerado o nível de significância de 5% Resultados Observou-se o benefício da modulação do mascaramento nos dois grupos. Porém, esse benefício foi menor para o grupo dos idosos (p-valor < 0,001). Na investigação do pós-mascaramento, houve diferença significativa entre os grupos, na média de limiares em 128 milissegundos, após a cessação do ruído (p-valor = 0,006). Conclusão O estudo mostra efeito da idade no benefício de modulação do ruído mascarante e no pós-mascaramento.

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“…In the last decades, many studies have compared speech recognition in steady noise with speech recognition in modulated noise, both presented with the same speech-to-noise ratio (SNR) [1][2][3] . In normally hearing subjects, speech recognition performance is substantially better in modulated noise when compared with steady noise -a phenomenon referred to as modulation masking release (MMR) 3 .…”

Section: Introductionmentioning

confidence: 99%

“…Such increase is greater for modulated noise than steady noise. Consequently, MMR magnitude decreases as speech time-compression level increases 1,3 . MMR magnitudes in relation to the speech timecompression levels and the masking-noise modulation rates are relatively well established in the literature when assessed separeted [8][9][10] .…”

mentioning

confidence: 99%

“…Speech redundancy can vary in many dimensions -e.g., contextual integrity (high versus low speech predictability), and acoustic integrity (filtered versus unfiltered speech). Another possibility is to change speech redundancy by manipulating the speech timecompression level 1,3 . The speech time-compression level is normally expressed in the percentage in which the original duration of the speech shape is reduced.…”

mentioning

confidence: 99%

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Modulation masking release reduction as a function of time-compressed speech

et al. 2020

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Purpose: to investigate the magnitude of the modulation masking release in sentence recognition as a function of compression level and modulation rate. Methods: sentences of the Brazilian Portuguese version of the Hearing in Noise Test sentences were used as stimulus. The sentence recognition thresholds were established as a function of speech compression level (0%, 33%, and 50%) in steady and modulated noise at different modulation rates (4, 10, 32 Hz). The analysis of variance was performed for repeated measures, using the 5% significance level. Results: sentence recognition thresholds were higher for higher compression levels in the different types of noise. However, thresholds were smaller for modulated noises. Also, the magnitude of modulation masking release decreased as speech compression level increased. Nevertheless, no difference was observed in compressed speech between different noise modulation rates, in relation to the speech compression level. Conclusion: the magnitude of the modulation masking release decreased as the speech time-compression increased. Also, the reductions in modulation masking release, in relation to the speech time-compression level, did not differ between the masking-noise modulation rates (4, 10, and 32 Hz).

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Modulation masking release using the Brazilian-Portuguese HINT: Psychometric functions and the effect of speech time compression

Cited by 10 publications

References 36 publications

Modulation masking and glimpsing of natural and vocoded speech during single-talker modulated noise: Effect of the modulation spectrum

Modulation masking and glimpsing of natural and vocoded speech during single-talker modulated noise: Effect of the modulation spectrum

Efeito da idade no processamento auditivo temporal: benefício da modulação do mascaramento e efeito do pós-mascaramento

Modulation masking release reduction as a function of time-compressed speech

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