Pyongyang’s leader Kim Jong-un is due to meet South Korean President Moon Jae-in later this Friday at the truce village of Panmunjom, marking the first inter-Korean summit in over a decade.
Mr Kim is also due to meet US President Donald Trump by June. It will be the first ever meeting between two sitting leaders of North Korea and the US.
South Korea’s propaganda broadcasts have been running on and off since the Korean War. The idea is to persuade North Korean soldiers to doubt what they are told by their leaders.
Their use has been increased and decreased over the years, following the diplomatic mood on the peninsula.
In 2004, the broadcasts were stopped as part of a deal negotiated between both countries.
But in 2015, after two South Korean soldiers were severely injured by North Korean-planted mines in the demilitarised zone (DMZ), the South turned its speakers back on. It was later halted again in 2015 and re-started in 2016 in response to the North testing a hydrogen bomb.
South Korea did not say whether it planned to restart the broadcasts once the summits are over.