Figure 10
From: Efficient voice activity detection algorithm using long-term spectral flatness measure
Illustrative example of the adaptive threshold and the VAD output, white noise, SNR = 0 dB. The upper figure shows the LSFM value and the corresponding adaptive threshold for each frame. The lower figure shows the VAD output decisions and the ground truth, namely ‘Label’. The two sentences are as follows: (1) She had your dark suit in greasy wash water all year; (2) in wage negotiations, the industry bargains as a unit with a single union.