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I was reading the Wiki of Decibel. Unfortunately, I "forgot" there's different between amplitude ratio and dB level. After reading the wiki. When I looked at my source code, I saw sounddB was unuse...
Answer
#2: Post edited
I was reading the [Wiki of Decibel](https://en.wikipedia.org/wiki/Decibel#Field_quantities). Unfortunately, I "forgot" there's different between amplitude ratio and dB level. After reading [the wiki](https://en.wikipedia.org/wiki/Decibel#Field_quantities). When I looked at my source code, I saw `sounddB` was unused. When I tried to get a list from `sounddB`, I noticed the decibel meter was at 70. I had write `amplitude = 10exp(-7)` from [the comment](https://stackoverflow.com/questions/9597767/decibel-sound-meter-for-android/11019896#comment21395711_11019896). That's basically ok to solve the problem. But, this doesn't print accurately as [the extension does](https://chrome.google.com/webstore/detail/sound-meter-noise-decibel/fhamlklnpkhdfepaipljcngncafnlbfa/related). So, you have to change `amplitude level`.
- I was reading the [Wiki of Decibel](https://en.wikipedia.org/wiki/Decibel#Field_quantities). Unfortunately, I "forgot" there's different between amplitude ratio and dB level. After reading [the wiki](https://en.wikipedia.org/wiki/Decibel#Field_quantities). When I looked at my source code, I saw `sounddB` was unused. When I tried to get a list from `sounddB`, I noticed the decibel meter was at 70. I had write `ampl = 10exp(-7)` from [the comment](https://stackoverflow.com/questions/9597767/decibel-sound-meter-for-android/11019896#comment21395711_11019896). That's basically ok to solve the problem. But, this doesn't print accurately as [the extension does](https://chrome.google.com/webstore/detail/sound-meter-noise-decibel/fhamlklnpkhdfepaipljcngncafnlbfa/related). So, you have to change `ampl level`.
#1: Initial revision
I was reading the [Wiki of Decibel](https://en.wikipedia.org/wiki/Decibel#Field_quantities). Unfortunately, I "forgot" there's different between amplitude ratio and dB level. After reading [the wiki](https://en.wikipedia.org/wiki/Decibel#Field_quantities). When I looked at my source code, I saw `sounddB` was unused. When I tried to get a list from `sounddB`, I noticed the decibel meter was at 70. I had write `amplitude = 10exp(-7)` from [the comment](https://stackoverflow.com/questions/9597767/decibel-sound-meter-for-android/11019896#comment21395711_11019896). That's basically ok to solve the problem. But, this doesn't print accurately as [the extension does](https://chrome.google.com/webstore/detail/sound-meter-noise-decibel/fhamlklnpkhdfepaipljcngncafnlbfa/related). So, you have to change `amplitude level`.