The Voice is currently in its 2nd season. The Voice 3 is coming up again in the fall. While there is no word yet on the audition cities and dates for the third season, there will likely also be an online audition process.
In the past, The Voice had an online software program you could use to record and submit a performance audition. If they do that again, I will post details on that here in addition to the dates and cities of any live auditions held throughout the country.
Unlike many other shows, The Voice seems to proactively seek out contestants. Many of the contestants on The Voice have been working musicians for a long time who just have never had a big break. If you are new to music, you will generally have a tougher time getting accepted for The Voice. However, it is certainly not out of the question. Teenagers like Xenia and RaeLynn have been picked before despite having little to no experience.
I will release the audition cities and dates and any details on online auditions for The Voice 3 when they are available.