Sound Value - sound meter and

About Sound Value - sound meter and Android App

This powerful sound decibel level meter, intelligent app for Android that allows you to measure the noise level of your vehicle. A special algorithm calculates the sound level in decibels and displays in a convenient form. It is no secret that the car can make a lot of noise, which can not be permitted in the city. Using this tool to measure your vehicle noise, you can be calm and confident in your vehicle. Also this application keeps the sound level meter data on the measurement of noise and you can easily see the history.

Features:
- Allows you to measure the noise level of your car
- Allows you to measure the noise level from any other source
- He writes notes about noise level - an acceptable, unacceptable, etc.
- Displays the history of your measurements.

Note:
Quality measurement of a given application depends on the characteristics of your device's microphone and other parameters.

Noise scale (sound levels, decibels)
0 - Can't hear anything
5 - Almost inaudible
10 - The quiet rustle of leaves is almost inaudible
15 - Barely audible rustle of leaves
20 - Barely heard the whisper of a person (at a distance of 1 meter).
25 - Quiet whisper of a man (1m)
30 - Quiet whisper, the ticking of the wall clock.
The permissible maximum according to the norms for residential premises at night, from 23 to 7 o'clock.
35 - Quite audible muffled conversation
40 - Normal speech is quite audible.
The norm for residential premises during the day, from 7 to 23 hours.
45 - Normal conversation is quite audible
50 - Conversation is clearly audible, typewriter
55 - Clearly audible
Upper norm for class A office space (according to European standards)
60 - Noisy Norm for offices
65 - Noisy loud talk (1m)
70 - Noisy loud conversations (1m)
75 - Noisy scream, laugh (1m)
80 - Very noisy
a scream, a motorcycle with a silencer, the noise of a vacuum cleaner (with a high engine power - 2 kilowatts).
85 - Very noisy loud scream, muffled motorcycle
90 - Very noisy loud screams, freight railroad car (seven meters)
95 - Very noisy subway car (7 meters outside or inside the carriage)
100 - Extremely noisy
orchestra, subway car (intermittently), thunder, screeching of a running chainsaw
The maximum permissible sound pressure for the player's headphones (according to European standards)
105 - Extremely noisy
in an airplane (until the 80s of the twentieth century)
110 - Extremely noisy helicopter
115 - Extremely noisy sandblasting machine (1m)
120 - Almost Unbearable jackhammer (1m)
125 - Almost Unbearable
130 - Pain threshold the plane at the start
135 - Concussion
140 - Concussion
the sound of a jet taking off, at the edge of the runway
145 - Concussion rocket launch.
150 - Contusion, trauma
sound, at the moment of a shot from a gun (without a silencer), medium caliber, near the muzzle of the barrel.
155 - Contusion, trauma
160 - Shock, trauma
shock wave from a supersonic aircraft