PITCHBOY is a solution that combines: - A scenario editor - A content library - Immersive conversation simulations Immersed in a realistic environment, the learner stands in front of an interlocutor with whom he is going to have a conversation, while expressing himself naturally and freely. Depending on what he says and the way he says it, the interlocutor responds in the most suitable way (decision tree) The voice recognition technology (NLU) developed by PITCHBOY, allows a real experience of "learning by doing ". The solution allows independent learning which is defined by a personal and individual journey. The learner progresses at his own pace, free from the gaze of others and has the right to make mistakes.