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Fig. 8 | EURASIP Journal on Audio, Speech, and Music Processing

Fig. 8

From: Multichannel speaker interference reduction using frequency domain adaptive filtering

Fig. 8

Comparison of the averaged and time-smoothed measurement noise \(\overline {|\Psi |^{S}}_{{}m=1}(\ell)\) and the system distance \(d^{\text {sys}}_{m=1,\mu }(\ell)\) of the MAEC and the oracle MAEC, respectively, for one specific dialog at iSIR = 10 dB. From top to bottom the target speech signal s1(n), both interferer speech signals d1,μ=2(n) and d1,μ=3(n) are visualized with the corresponding MSAD output \(\chi ^{\text {MSAD}}_{m}(\ell)\in \{0,1\}\). The measurement noise component \(\overline {|\Psi |^{S}}_{{}m=1}(\ell)\) of the MAEC and oracle MAEC are denoted with a blue solid line and a dotted skyblue line, respectively. Finally, the associated system distance \(d^{\text {sys}}_{m=1,\mu }(\ell)\) of both interferer signals μ{2,3} are colored according to the interfering signals, whereby dotted lines represent the results of the oracle MAEC, dashed lines the results of the basic MAEC without using the extended RIR update control strategy, and solid lines the results of the MAEC using the extended RIR update control strategy. Figure best seen on the screen

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