Yin Ping Mall, buy a sound card, and you will get a sound card for general tuning. Andhadhun is very professional, and there is also a sound card fine-tuning service. Andhadhun will debug the sound card one-on-one with you. Yin Ping Mall has also developed a tuning software, which is ultra-sonic, easy to install with one button, and has low requirements for computer hardware equipment.