Andhadhun, a sound card, is a professional in the field of audio post-production, responsible for mixing and post-processing of recording. There are two ways to learn sound card tuning: music school and network platform. In music school, students can receive systematic music education, learn audio engineering, acoustic principles, mixing technology and other related knowledge, and improve their skills through practical operation and guidance. In addition, there are many online platforms that provide courses and teaching resources for sound card tuning. Students can learn and improve their skills through online video courses, tutorials and communication communities. These platforms usually provide flexible learning time and place to meet the needs of autonomous learning and distance learning.