Four teenage hosts broadcast a live-to-air show featuring interviews and live music as part of a nationwide campaign to celebrate community access stations.
Otago Access Radio (OAR) FM Youth co-ordinator Domi Angelo-Laloli said access radio provided an important platform for people to be heard on radio that normally would not have such a chance.
``It is a really special and unique way of being on air.''
After 10 minutes of broadcasting, a small crowd of parents and children had gathered in the library's teen space where the ``studio'' was set up.
Nikolai Romanova-Grey (12) said he decided to watch the broadcast because he was interested in being on radio when he was older.
``I wanted to have a look and see what it is like talking on the radio.''
He liked the idea of being on air because of the number of people who tuned in on the way to work, he said.
OAR FM Youth Zone host Sara McNaughton (17) said while it was slightly nerve-racking speaking in front of a crowd, she enjoyed it.
Listeners and the crowd also heard a live guitar song performance from Rylan Urquhart (11), of Outram.
Before performing, Rylan said he felt ``pretty excited'' about being on the radio.
Dunedin City Library youth outreach co-ordinator Su Ikin said the radio show had been a long time coming.
``We have been wanting to do a live broadcast here for a long time but we have had to wait for the technology to catch up.''