Leq

streaming mode | Loudness/dynamics category

Inputs

  • signal (real) - the input signal (must be non-empty)

Outputs

  • leq (real) - the equivalent sound level estimate [dB]

Description

This algorithm computes the Equivalent sound level (Leq) of an audio signal. The Leq measure can be derived from the Revised Low-frequency B-weighting (RLB) or from the raw signal as described in [1]. If the signal contains no energy, Leq defaults to essentias definition of silence which is -90dB. This algorithm will throw an exception on empty input.

References:

[1] G. A. Soulodre, “Evaluation of Objective Loudness Meters,” in The 116th AES Convention, 2004.

Source code

See also

Leq (standard) Loudness (standard) Loudness (streaming) Meter (standard) Meter (streaming)