Abstract
The effects of a nonlinear, digital hearing aid on the perception of sentences in a quiet environment were examined for 12 patients with profound sensorineural hearing impairments. This hearing aid was equipped with a compression circuit, which divides the waveform in the time domain by zero-cross points, and then amplifies each waveform to an fixed amplitude. To reduce the susceptibility to background noise, input signals less than a certain level were amplified linearly, and this level was easily adjustable. Three out of 12 (25.0%) patients understood more than 50% of the phrases in typical Japanese sentences at all of the pre-set sound level (50, 60, 70 and 80 dBSPL). Furthermore, this device offered better perception than linear amplification (Rion HA70 or 73) in 8 out of 12 (66.7%) subjects, and was superior to the subjects' own linear hearing aids in 5 out of 10 (50.0%) cases. These results indicate that this hearing aid is beneficial for some subjects.
| Original language | English |
|---|---|
| Pages (from-to) | 139-144 |
| Number of pages | 6 |
| Journal | Practica Otologica |
| Volume | 91 |
| Issue number | 2 |
| Publication status | Published - 1998 |
| Externally published | Yes |
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Keywords
- Compression
- Digital hearing aid
- Nonlinear amplification
- Sensorineural hearing impairment
- Time domain
ASJC Scopus subject areas
- Otorhinolaryngology
Cite this
Effects of a nonlinear digital hearing aid amplifying in the time domain. / Kaneko, Ken Ichi; Shoji, Kazuhiko; Kojima, Hisayoshi; Inoue, Masato; Asato, Ryo; Honjo, Iwao.
In: Practica Otologica, Vol. 91, No. 2, 1998, p. 139-144.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Effects of a nonlinear digital hearing aid amplifying in the time domain
AU - Kaneko, Ken Ichi
AU - Shoji, Kazuhiko
AU - Kojima, Hisayoshi
AU - Inoue, Masato
AU - Asato, Ryo
AU - Honjo, Iwao
PY - 1998
Y1 - 1998
N2 - The effects of a nonlinear, digital hearing aid on the perception of sentences in a quiet environment were examined for 12 patients with profound sensorineural hearing impairments. This hearing aid was equipped with a compression circuit, which divides the waveform in the time domain by zero-cross points, and then amplifies each waveform to an fixed amplitude. To reduce the susceptibility to background noise, input signals less than a certain level were amplified linearly, and this level was easily adjustable. Three out of 12 (25.0%) patients understood more than 50% of the phrases in typical Japanese sentences at all of the pre-set sound level (50, 60, 70 and 80 dBSPL). Furthermore, this device offered better perception than linear amplification (Rion HA70 or 73) in 8 out of 12 (66.7%) subjects, and was superior to the subjects' own linear hearing aids in 5 out of 10 (50.0%) cases. These results indicate that this hearing aid is beneficial for some subjects.
AB - The effects of a nonlinear, digital hearing aid on the perception of sentences in a quiet environment were examined for 12 patients with profound sensorineural hearing impairments. This hearing aid was equipped with a compression circuit, which divides the waveform in the time domain by zero-cross points, and then amplifies each waveform to an fixed amplitude. To reduce the susceptibility to background noise, input signals less than a certain level were amplified linearly, and this level was easily adjustable. Three out of 12 (25.0%) patients understood more than 50% of the phrases in typical Japanese sentences at all of the pre-set sound level (50, 60, 70 and 80 dBSPL). Furthermore, this device offered better perception than linear amplification (Rion HA70 or 73) in 8 out of 12 (66.7%) subjects, and was superior to the subjects' own linear hearing aids in 5 out of 10 (50.0%) cases. These results indicate that this hearing aid is beneficial for some subjects.
KW - Compression
KW - Digital hearing aid
KW - Nonlinear amplification
KW - Sensorineural hearing impairment
KW - Time domain
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UR - http://www.scopus.com/inward/citedby.url?scp=33748402901&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:33748402901
VL - 91
SP - 139
EP - 144
JO - Practica Oto-Rhino-Laryngologica
JF - Practica Oto-Rhino-Laryngologica
SN - 0032-6313
IS - 2
ER -