Interacoustics AD629 Gebrauchsanweisung Seite 1108

AD629 Instructions for Use - US
Tone
Warble Tone
Wave file
Masking
Presentation
Intensity
Frequency range
Speech
External signal
125-20000Hz separated in two ranges 125-8000Hz and 8000-20000Hz.
Resolution 1/2-1/24 octave.
1-10 Hz sine +/- 5% modulation
44100Hz sampling, 16 bits, 2 channels
Automatic selection of narrow band noise (or white noise) for tone presentation and
speech noise for speech presentation.
Narrow band noise:
IEC 60645-1:2001, 5/12 Octave filter with the same centre frequency resolution as pure
Tone.
White noise:
80-20000Hz measured with constant bandwidth
Speech Noise.
IEC 60645-2:1993 125-6000Hz falling 12dB/octave above 1KHz +/-5dB
Manual or Reverse. Single or multiple pulses.
Check the accompanying Appendix
Available Intensity Steps is 1, 2 or 5dB
Extended range function: If not activated, the Air Conduction output will be limited to 20 dB
below maximum output.
125Hz to 8kHz (Optional High Frequency: 8 kHz to 20 kHz)
125Hz, 250Hz, 750Hz, 1500Hz and 8kHz may freely be deselected
Frequency Response:
(Typical) Frequecy
TDH39 125-250
(IEC 60318-3 Coupler) 250-4000
4000-6300
DD45 125-250
(IEC 60318-3 Coupler) 250-4000
4000-6300
E.A.R Tone 3A 250-4000
(IEC 60318-5 Coupler)
IP 30 250-4000
(IEC 60318-5 Coupler)
B71 Bone Conductor 250-4000
(IEC 60318-6 Coupler)
2% THD at 1000 Hz max output +9
dB (increasing at lower frequency)
Level range:
1. Ext. sign: CD input
Speech replaying equipment connected to the CD input must have a signal-to-noise ratio
of 45 dB or higher.
The speech material used must include a calibration signal suitable for adjusting the input
to 0 dBVU.
Linear (dB)
1 2
(Hz) Ext sign Int. Sign
+0/-2 +0/-2
+2/-2 +2/-1
+1/-0 +1/-0
+0/-2 +1/-0
+1/-1 +1/-1
+0/-2 +0/-2
+2/-3 +4/-1
+2/-3 +4/-1
+12/-12 +12/-12
-10 to 50 dB HL
Page 44
FFequv (dB
1 2
Ext sign Int. Sign
+0/-8 +0/-8
+2/-2 +2/-2
+1/-0 +1/-0
+0/- +0/-7
+2/-2 +2/-3
+1/-1 +1/-1
(Non
linear)
(Non linear)
(Non linear)
2. Int. sign: Wave files