ReadSpeaker said ScotRail first made inquries three years ago about adopting their technology.
Starting on 27 June, the annual event will be held in venues across the city, and feature panel discussions, lectures and workshops over 10 days.Among the guests due to appear at the event are poet John Cooper Clarke, broadcaster Mishal Husain and actor Larry Lamb.
Festival co-founder Syima Aslam said: "We are rooted in books, but I always say there is nothing in the world that there isn't a book about so there is nothing that we can't talk about."Ms Aslam, who grew up in Bradford, launched the festival in 2014 with a view to making literature accessible to the city's diverse population.She said she wanted to overcome the financial barriers for people in Bradford, as well as other cities in the UK, which stopped many from enjoying cultural events.
"We have to recognise that those barriers are real, with the cost of living and all of those things," Ms Aslam said."One of the tests that I've always applied to the festival is if you're a single mum with four kids to feed, are you going to feed them or are they going to come to the festival?
"So, we've done a lot of work in that area to ensure that's not the case."
Bradford Literature Festival is aThe suspect, a white Irish man in his 20s, is understood to have fired the shotgun a number of times as he walked through the centre.
He was then witnessed exiting the centre and was confronted by armed, plain clothed officers. He later died from a self-inflicted gunshot wound.At a press conference on Monday, Assistant Commissioner Paula Hilman said no one was injured by the shots discharged, but a young girl suffered a minor leg injury after falling while running from the scene.
"This was meant to be a normal day out on a bank holiday weekend," she said."This was a terrifying experience for every person that was present in the Fairgreen Shopping Centre yesterday evening."