Hearing performance and voice acoustics of cochlear implanted children

Coelho, Ana Cristina; Brasolotto, Alcione Ghedino; Bevilacqua, Maria Cecília; Moret, Adriane Lima Mortari; Bahmad Júnior, Fayez

doi:10.1016/j.bjorl.2015.11.002

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Brazilian Journal of Otorhinolaryngology

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ORIGINAL ARTICLE • Braz. j. otorhinolaryngol. 82 (1) • Jan-Fev 2016 • https://doi.org/10.1016/j.bjorl.2015.11.002 copy

Hearing performance and voice acoustics of cochlear implanted children ^{^☆} ☆ Please cite this article as: Coelho AC, Brasolotto AG, Bevilacqua MC, Moret ALM, Bahmad Júnior F. Hearing performance and voice acoustics of cochlear implanted children. Braz J Otorhinolaryngol. 2016;82:70-5. ^{^☆☆} ☆☆ Institution: Universidade de São Paulo, Faculdade de Odontologia de Bauru, Bauru, SP, Brazil; Universidade de Brasília, Faculdade de Ciências da Saúde, Brasília, DF, Brazil.

Authorship SCIMAGO INSTITUTIONS RANKINGS

ABSTRACT

INTRODUCTION:

The voice of hearing-impaired individuals has been described extensively, and exhibits abnormalities in quality, articulation and resonance. Having an understanding of the aspects that may have an impact on voice characteristics of cochlear implant users is important for users and for professionals in this field.

OBJECTIVE:

To verify the existence of correlation between age, time of device use, voice detection threshold, hearing category score and language category score with acoustic data of voices of cochlear implanted children.

METHODS:

Retrospective study. Fifty-one children ranging in age from 3 years to 5 years and 11 months who unilaterally used cochlear implants participated. Acoustic analysis of the sustained vowel/a/, sequential speech and spontaneous speech was performed. The results were correlated with demographic data and hearing test results.

RESULTS:

Children with worse voice detection threshold showed higher frequency in the sustained vowel ( p ≤ 0.001) and in the spontaneous speech ( p ≤ 0.005).

CONCLUSION:

There was a correlation between the voice detection threshold and the frequency values of the sustained vowel and spontaneous speech of the studied population.

Keywords:
Voice; Voice quality; Cochlear implant

Data	Mean (±standard deviation)
Age (months)	48.38 (±8.01)
Time of cochlear implant use (months)	24 (±8.03)
Voice detection threshold (dB)	24.23 (±4.94)
Hearing category	3.55 (±1.3)
Language category	3.14 (±1.8)

Parameter	Sustained vowel Mean (±SD)	Sequential speech Mean (±SD)	Spontaneous speech Mean (±SD)
Mean f₀ (Hz)	293.53 (±55.5)	–	–
SD f (Hz)	7.78 (±4.08)	–	–
v f₀ (%)	278 (±1.48)	–	–
Jitter (%)	1.3 (±1.02)	–	–
vAm (%)	16.09 (±5.84)	–	–
Shimmer (%)	3.19 (±1.17)	–	–
VTI (%)	0.07 (±0.07)	–	–
SPI (%)	5.61 (±4.69)	–	–
NHR (%)	0.13 (±0.02)	–	–
DSH (%)	2.16 (±3.12)	–	–
Mean Freq (Hz)	–	296.14 (±24.39)	304.70 (±31.10)
Extension (Hz)	–	165.83 (±50.35)	168.32 (±43.72)
Min Freq (Hz)	–	213.24 (±24.87)	209.20 (±27.47)
Max Freq (Hz)	–	372.23 (±28.99)	377.54 (±33.25)
SD Freq (Hz)	–	34.04 (±15.27)	38 (±15.99)
Extension (semitones)	–	9.69 (±2.79)	10.19 (±2.67)

Parameter	Age		Time of use		VDT		Hearing category		Language category
	Corr	p -Value	Corr	p -Value	Corr	p -Value	Corr	p -Value	Corr	p -Value
Mean f₀ (Hz)	-30.70%	0.036	-17.90%	0.23	53.80%^a	0.001^b	-12.80%	0.391	-14.90%	0.317
SD f₀ (Hz)	5.60%	0.708	19.70%	0.185	23.20%	0.174	-1.00%	0.947	-9.80%	0.513
v f₀ (%)	13.80%	0.354	21.80%	0.141	2.90%	0.868	19.10%	0.198	0.20%	0.989
	27.10%	0.066	33.70%	0.021	-1.10%	0.949	26.50%	0.072	10.40%	0.486
vAmp (%)	9.10%	0.544	2.60%	0.862	-38.20%	0.022	-18.90%	0.202	-5.10%	0.734
Shim (%)	32.10%	0.028	38.10%	0.008	-11.60%	0.499	27.10%	0.065	15.80%	0.288
VTI (%)	-11.80%	0.43	3.50%	0.813	35.60%	0.033	-3.60%	0.81	1.00%	0.946
SPI (%)	16.20%	0.277	-3.80%	0.802	-12.20%	0.479	2.50%	0.867	4.50%	0.764
NHR (%)	18.60%	0.211	25.70%	0.081	-11.70%	0.496	25.70%	0.081	16.80%	0.259
DSH (%)	10.60%	0.48	8.90%	0.55	-11.30%	0.513	4.00%	0.792	-0.40%	0.979

Parameter	Age		Time of use		VDT		Hearing category		Language category
	Corr	p -Value	Corr	p -Value	Corr	p -Value	Corr	p -Value	Corr	p -Value
Mean Freq (Hz)	-33.20%	0.026	-19.00%	0.212	26.00%	0.125	-20.20%	0.184	-17.10%	0.26
Extension (Hz)	-11.50%	0.451	-14.30%	0.349	-2.20%	0.898	0.90%	0.953	-4.20%	0.783
Min Freq (Hz)	-4.10%	0.787	8.30%	0.588	9.10%	0.598	-7.30%	0.634	3.80%	0.806
Max Freq (Hz)	-24.90%	0.099	-23.50%	0.12	10.40%	0.545	-3.80%	0.805	-12.50%	0.412
SD Freq (Hz)	-15.40%	0.319	-17.20%	0.264	7.60%	0.664	-9.70%	0.532	-23.60%	0.123
Extension semitones	-12.20%	0.425	-20.70%	0.173	2.40%	0.887	0.20%	0.989	-11.80%	0.438

Parameter	Age		Time of use		VDT		Hearing category		Language category
	Corr	p -Value	Corr	p -Value	Corr	p -Value	Corr	p -Value	Corr	p -Value
Mean Freq (Hz)	-13.40%	0.366	-5.50%	0.711	44.90%^a	0.005^b	-3.80%	0.796	-2.90%	0.846
Extension (Hz)	2.70%	0.857	7.00%	0.635	7.90%	0.642	26.10%	0.073	16.60%	0.26
Min Freq (Hz)	-13.20%	0.371	-18.60%	0.206	13.30%	0.433	-20.60%	0.16	-16.10%	0.273
Max Freq (Hz)	-7.40%	0.615	-6.10%	0.681	19.70%	0.243	17.20%	0.241	8.40%	0.569
SD Freq (Hz)	-5.40%	0.715	8.10%	0.584	13.40%	0.429	19.60%	0.182	12.50%	0.398
Extension semitones	4.60%	0.755	10.00%	0.497	5.00%	0.767	25.00%	0.086	18.10%	0.218

Associação Brasileira de Otorrinolaringologia e Cirurgia Cérvico-Facial. Sede da Associação Brasileira de Otorrinolaringologia e Cirurgia Cérvico Facial, Av. Indianópolia, 1287, 04063-002 São Paulo/SP Brasil, Tel.: (0xx11) 5053-7500, Fax: (0xx11) 5053-7512 - São Paulo - SP - Brazil
E-mail: revista@aborlccf.org.br

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[1] * Corresponding author. E-mail:anacrisccoelho@yahoo.com.br (A.C. Coelho).