Developing an Appropriate Digital Hearing Aid for Low-Resource Countries: A Case Study

Table 3

PDN-01B electroacoustics measurements.

IEC 60118-7	Measured
HFA-OSPL90	105 dB
Max OSPL90	118 dB
HFA FOG 50 dB	53 dB
Low frequency cutoff	300 Hz
High frequency cutoff	7.7 kHz
THD at 70 dB	2.3%
Equivalent input noise	38 dB
Current drain	13 mA
Attack time	1.3 ms
Release time	382.9 ms
HFA-SPLITS	105.0 dB
STS	5.0 dB