The Scientific World Journal / 2014 / Article / Fig 9

Research Article

Voice Activity Detection in Noisy Environments Based on Double-Combined Fourier Transform and Line Fitting

Figure 9

Results of the proposed algorithm in a babble-noise environment: (a) noisy speech signal at SNR −5 dB, (b) clean speech signal, (c) the proposed feature, and (d) edge detection filter output based on the proposed feature.
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(a)
146040.fig.009b
(b)
146040.fig.009c
(c)
146040.fig.009d
(d)