EnergyBandRatio¶

Inputs¶

• spectrum (vector_real) - the input audio spectrum

Outputs¶

• energyBandRatio (real) - the energy ratio of the specified band over the total energy

Parameters¶

• sampleRate (real ∈ (0, ∞), default = 44100) :

  the sampling rate of the audio signal [Hz]

• startFrequency (real ∈ [0, ∞), default = 0) :

  the frequency from which to start summing the energy [Hz]

• stopFrequency (real ∈ [0, ∞), default = 100) :

  the frequency up to which to sum the energy [Hz]

Description¶

This algorithm computes the ratio of the spectral energy in the range [startFrequency, stopFrequency] over the total energy.

An exception is thrown when startFrequency is larger than stopFrequency or the input spectrum is empty.

References:

[1] Energy (signal processing) - Wikipedia, the free encyclopedia, http://en.wikipedia.org/wiki/Energy_%28signal_processing%29

Source code¶

• C++ source code

• C++ header file

See also¶

Energy (standard) Energy (streaming) EnergyBandRatio (standard)