Sound meter (Menu 11)
The Sound meter is not intended for professional use.
It is rather a fun feature providing you with the means to measure the
estimated noise level of your surroundings.
Note: Your phone must be switched on to use this function. Do not switch on the phone
when the use of a wireless phone is prohibited or when it may cause interference or danger.
The phone displays a vertical meter bar that shows the noise level
graphically. There is also a numerical presentation of the sound level. The
peak value is shown in a frame on the top and the current value is presented
underneath. The unit of these numerical values is the decibel (dB).
Note: It is not possible to measure the estimated noise level of a call in
progress.
Please note that the Sound meter in your phone is NOT a professional
precision instrument. It can only display an approximation of the real dB level.
The Sound meter of your phone measures the sound level in frequencies between 300Hz and 3400Hz,
meaning approximately the frequencies that are most important for the speech intelligibility and are
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conveyed through the GSM system in a normal call. Noise beneath and above those frequencies will
not be measured.
When you press
Options
you get a list of three:
•
Reset
•
Hold
•
Dynamic
With
Reset
you can reset the peak value.
With
Hold
both values are shown but the peak value is updated only when the current noise level is
greater than the current peak value.
With
Dynamic
both values are shown but the peak value is valid only for 5 seconds.
Note: Using the sound meter consumes the battery and the phone’s operating time will be reduced
considerably. It is recommended not to use the sound meter when not needed.
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