Online Loudness Meter – by Youlean
Professional loudness meter in the palm of your hand.
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Does this online meter transfer data to the server?
No, all audio data is being used locally.
What standard does this meter uses?
It uses ITU-R BS.1770-4 standard.
How accurate is this meter compared to other professional SPL meters?
Analyzing from microphone will not give you accurate SPL-Loudness values since it is limited to the hardware on which is being used. If you want to know exact SPL-Loudness level please use professional hardware made for that use. However, if you want to compare perceived loudness of two different sounds this meter will do a great job.
Analyzing from file will give you accurate results comparable to results from other professional analyzers. Currently only stereo mode is supported. Other channel configurations will be introduced soon.