34
AUDIO TEST PROCEDURE
Equipment Required: Music devices with AUX
play-out. (Prefer Ipod or Iphone for this test).
Note: Audio Signal Generator can be use for
more detail analysis.
Download the ST10 Frequency Sweep.wav and
ST10 Airleak.wav from service web site under
SoundTouch
®
10 and stored them in the music
devices.
1. Air Leak Test
The unit should be placed into AUX mode at max
volume or TAP command “ sys volume 100”
1.1 Start the ST10 Airleak.wav and listen for
buzzes, rattles, ticks, distortion, etc.
1.2 The unit passes if there are no audible air
leaks at a distance >1ft.
Note: A 100mVrms, 80 Hz signal generator to
the AUX input can be replacing ST10 Airleak.
wav.
Frequency : 80Hz
Duration : 5 seconds
Level : 100mVrms
Volume level (0-100) : 100
2. Frequency Sweep Test
The unit should be placed into AUX mode at max
volume or TAP command “ sys volume 100”.
2.1 Start the ST10 Frequency Sweep.wav and
listen for buzzes, rattles, ticks, distortion, etc.
2.2 The unit passes if there are no audible
anomalies at a distance >1ft.
Note: A 100mVrms, 40 Hz - 5kHz signal
generator. 5 second sweep up and 5 second
sweep down can be replacing the ST10 Fre-
quency Sweep.wav.
Frequency range: 40Hz - 5.0KHz
Duration: 5s up and 5s
Down
Sweep rate: log sweep
LPF: 1 kHz, 1st order
Input level: 100mVrms
Volume level (0-100): 100
To Next Page
Loading...
