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Idiomas disponibles
Idiomas disponibles
Speech audiometry inputs: EXT1, EXT2, MIC, INT (flash memory, only
Viola Plus).
Signals specifications
Attenuator step: 5dB.
Presentation: Continuous, Pulsed (0.5, 1, 2 Hz).
Warble: 5 Hz sin wave modulating signal
Available outputs and transducers
AC: TDH-39 headphones, DD45 headphones, ER-3 or ER-5
earphones
BC: B-71 bone vibrator
Insert masking earphone: IME-100
Pure tone: available frequencies and maximum levels (dB HL)
Freq.
AC
(Hz)
TDH-39
125
80
250
100
500
110
750
115
1.000
120
1.500
120
2.000
120
3.000
120
4.000
120
6.000
110
8.000
100
Speech audiometry: maximum levels (dB HL)
AC
TDH-39
TDH-39
ANSI S3.6
ANSI S3.6
Type CE,
Type C, IEC
IEC 60645-1
60645-1
Type BE
Type B (*)
100
(*) Free Field Equivalent filter OFF
(**) Free Field Equivalent filter ON
1
Supported but not available for purchase
AC
DD45
80
100
110
115
120
120
120
120
120
110
100
AC
AC
DD45
ANSI S3.6
Type C, IEC
60645-1
Type B (*)
(**)
80
100
AC
AC
ER-3
ER-5
90
90
105
100
110
110
115
120
120
120
120
120
120
115
120
115
110
110
95
100
90
90
AC
DD45
ANSI S3.6
Type CE,
IEC 60645-1
Type BE
(**)
80
1
insert
BC
--
45
65
70
75
80
80
75
75
55
50
AC
ER-3 /
BC
ER-5
100
55
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