A 46-year-old man slapped his wife during a row over him playing loud music.
Blackburn magistrates heard she claimed to have been slapped several times but Nicholas Thomas Beard only accepted a single blow.
Beard, of Catlow Row Road, Slaidburn, pleaded guilty to assaulting Angela Beard. He was made subject to community supervision for 12 months with a 25-day rehabilitation requirement, fined £50 and ordered to pay £60 compensation.
The court heard Mrs Beard had not asked for a restraining order but said he needed help with anger management.