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The Bark scale is a psychoacoustical scale.
The scale ranges from 1 to 24 and corresponds to the first 24 critical bands of hearing. The subsequent band edges are (in Hz) 0, 100, 200, 300, 400, 510, 630, 770, 920, 1080, 1270, 1480, 1720, 2000, 2320, 2700, 3150, 3700, 4400, 5300, 6400, 7700, 9500, 12000, 15500.
It is related to, but somewhat less popular than the mel scale.
To convert f into Bark use:
- <math>\mathrm{Bark} = 13 \arctan(0.76f/1000) + 3.5 \arctan((f/7500)^2).<math>
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