Evan Harrison, president of Clear Channel Radio Digital and executive VP of Clear Channel Radio for the first time addressed his impending departure from the company at Billboard’s Mobile Entertainment Live: The Music App Summit in San Francisco.

“This will be my last public speaking appearance as a representative of Clear Channel Radio,” he told attendees.

There’s not yet a specific timeline for his departure, only that he’s “seeing through the transition” and Clear Channel searches for a replacement. Depending on how that goes, Harrison could leave before the end of the year.

When news of Harrison’s exit first broke — after internal memos about his planned departure were leaked to the press - the plan was that he would stay on through the end of the year. Harrison had yet to address his plans until Tuesday’s conference. He did not shed any light on what his future plans will be. He was brought on to bring Clear Channel’s terrestrial radio business into the digital age. Perhaps the crowning achievement of that effort is the company’s iheartradio initiative—an online and mobile destination for all of Clear Channel’s properties. The iheartradio app has more than 10 million downloads to date.

Harrison is also the former GM of AOL Music and the AOL Radio Network, and earlier worked for BMG Entertainment in distribution and marketing, and helped launch the Click2Music.com service.

For a video interview with Harrison on the sidelines of the conference, where he discusses more about his departure and tenure, click here.