In two former studies [G. Canevet and G. Mangiante ‘‘Psychoacoustic Assessment of Active Noise Control,’’ Active 2004 (2004), and G. Mangiante and G. Canevet ‘‘Active Reduction of Environmental Noise: A Sound Quality Evaluation,’’ Internoise 2006 (2006)], the psychoacoustical effects of active noise control were described. One of these effects is the reduction of noise annoyance. This contribution aims at describing this annoyance reduction using the following indicators: loudness, sharpness, unbiased annoyance, and acoustic comfort. These indicators were calculated with a psychoacoustic‐analysis software in which the following models were implemented: Moore and co‐workers (1997), Zwicker and Fastl (1999), and Glasberg and Moore (2002). Using this software, various noises, selected from our everyday environment, were tested to investigate the effects of the following parameters: the width and the center frequency of the controlled band, the maximum attenuation in this band, and the sound pressure level of the noise before active control. The results showed that, in all cases, acoustic comfort is positively affected by active control. The annoyance reduction is greatly dependent of the shape of the power spectrum of the noise to be reduced. The best results are obtained for broadband noises with an energy contribution concentrated at low frequencies.