BOLDEN Apps

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Sound Level Meter
BOLDEN
Sound level meter ( dBa, dBc) with spectrum analyzer &calibration.
Mental Arithmetic 1.81
BOLDEN
With this program you can train your abilities mental calculations.You can select one or more mathematical operations, for test cases.Supported by addition, subtraction, multiplication and division.Also select a range of numbers that will be present in theexamples. Your task is to choose the correct answer from each bid.Each correct answer will add a few seconds to the time set asidefor reflection responses. Survive as long as possible in this stormmathematical !!!!.
Calculation air oxygen
BOLDEN
The application calculates the oxygen content in the air, humidity,dew point.
Sound Oscilloscope 1.13
BOLDEN
Oscilloscope - spectrum analyzer microphone signal