C.1: An Introduction toacoustics. p. 1. C.2: Frequency analysis. p. 37. C.3:Linear systems. p. 72. C.4:Digital filters. p. 92. C.5: Interference in plane wave sound fields. p. 116. C.6: Single channel feedforward control. p. 161. C.7: Single channel feedback control. p. 204. C.8: Point sources and the active suppression of free field radiation. p. 231. C.9: Continuous source distributions and the active absorption of free field radiation. p. 275. C.10: Global control of enclosed sound fields. p. 310. C.11: Local control of enclosed sound fields. p. 356. C.12: Multi-channel feedforward control. p. 379. Appendix a little linear algeb 411.