Noise Level was a fanzine by John Brunner.
Published in the 1950s in the UK, Noise Level was equal parts science fiction fanzine and folk music fanzine. It was distributed through the Offtrails Magazine Publishers Association (OMPA).
Ten issues were published. The first issue appeared in December 1954, distributed in OMPA 2; #2 was released in March 1955, distributed in OMPA 3; issue 3 in June, 1955, distributed in OMPA 4; issue 4 in September 1955, included in OMPA 5; issue 5 in December 1955, through OMPA 6, and was combined with Brunner's other fanzine Pogrom #4; issue 6 was released in Summer 1956, in OMPA 8; issue 7 in December 1956, in OMPA 10; issue 8 in June 1957, in OMPA 12; issue 9 in September 1957, in OMPA 13; and the last issue, 10, in May 1958, in OMPA 16.
The 'Cobalt Corfu Auction List, compiled by Sandra Bond, describes issue 10: "#10 particularly fascinating as it comprises John's account of the Aldermaston march which saw the founding of CND."