2. measuring the received/sound, microphone, employee is an employee's ear that is operational. No more than 30 cm radius for measurement of sound absorption or reflection of satisfaction be aware of sounds, because those who measure themselves. This is the machine in such a way away-most trunk, or consider using a sound level meter is installed on a tripod (Tripod), instead of just by the measure.3. read the value, volume, and duration of the experience of employees in individual functional areas, and save the results as well as other factors involved, such as recording devices, personal security protection-ear or ears or the inability of the other employees used the action that is causing the noise, etc.4. bring the TWA value measurement [truncated (if any)] Compared with the benchmark security working table 6 in section 3 kotkrathonwong sound.
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