The language lab is an audio or audio-visual installation used as an aid in modern language teaching. The purpose of a language lab is to involve students to actively participate in language learning exercises and get more practice than otherwise possible in a traditional classroom environment. Components in a language lab Teacher has a computer with appropriate software for conducting language exercises. Teacher and student positions are connected via LAN (local area network), in some cases also via separate audio cabling. Text, images, audio and video can easily be integrated; teachers can alter materials to fit their requirements. Learners can record their own voice and play back the recordings, interact with each other and the teacher, and store results. Self-access for independent learning which includes access to resources outside class