Advanced Sound Meter|音樂線上App不用買

Measure volumes in your environment with this fun and well-designed app. Adjust the "trim" value to calibrate your microphone, save your settings, and adjust the response rate (slow or fast).

View max/min/average decibel values, and "pause" the meter to see values at any particular state using the on/off button.

NOTE on using the "Scale" setting:

This version differs from previous versions in that it includes a "scale" setting. During testing, we found that some Android devices require a "multiplier" to get dB values that more accurately reflect real life. You may need to adjust this scale value anywhere from 1.0 to 2.0 depending on the particular device. For example, an HTC Incredible requires a scale of about 1.45 to be more consistent with Radio Shack SPL meters.

You will also likely need to adjust the "Trim" value depending on the type of device you have, and the device's microphone sensitivity. Between the scale & trim settings, you should be able to achieve values that at least approximate real dB meters.

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