Module: Digiproc::CoreExtensions::MathExtension::Decible

Defined in:
lib/extensions/core_extensions.rb

Overview

Add methods which are useful when using decible values

Instance Method Summary collapse

Instance Method Details

#db(value) ⇒ Object

db(numeric_input [Numeric]) # => returns 20 * Math.log(numeric_input, 10)



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# File 'lib/extensions/core_extensions.rb', line 54

def db(value)
    20 * Math.log(value, 10)
end

#db_power(value) ⇒ Object

db_power(numeric_input [Numeric]) # => returns 10 * Math.log(numeric_input, 10)



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# File 'lib/extensions/core_extensions.rb', line 60

def db_power(value)
    10 * Math.log(value, 10)
end

#mag_from_db(decible) ⇒ Object

input a decible, recieve a magnitude



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# File 'lib/extensions/core_extensions.rb', line 66

def mag_from_db(decible)
    10 ** (decible / 20.0)
end

#power_from_db(decible) ⇒ Object

Input a decible, recieve a magnitude (power)



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# File 'lib/extensions/core_extensions.rb', line 72

def power_from_db(decible)
    10 ** (decible / 10.0)
end