Active Suppression of Narrowband Noise by Multiple Secondary Sources

Figure 5

Spectrograms of the error signals from real-time narrowband control results for each component without the quality factor. (a) C1 control with LS1. (b) C1.5 control with LS1. (c) C2 control with LS1. (d) C1 control with LS2. (e) C1.5 control with LS2. (f) C2 control with LS2.

(a)

(b)

(c)

(d)

(e)

(f)