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Fig. 4 | EURASIP Journal on Audio, Speech, and Music Processing

Fig. 4

From: An adaptive a priori SNR estimator for perceptual speech enhancement

Fig. 4

Comparison of the a priori SNR estimation over a short-time period between the true a priori SNR ΞΎ (black solid line with a marker), ML a priori SNR estimate (green dashed line), \(\hat {\xi }_{\text {DD}}\) (blue solid line), \(\hat {\xi }_{\text {MDD}}\) (cyan dot solid line), \(\hat {\xi }_{\text {TSNR}}\) (magenta solid line) and \(\hat {\xi }_{\text {prop}}\) (red solid line with a marker), at 9th critical band and 10 dB SNR under different background noise: 1st row for pink noise, 2nd row for factory noise, and last row for babble noise

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