Improving the audio quality of a tutorial video is essential for maintaining viewer engagement. Start by investing in a good microphone, and if necessary, an audio interface for optimal sound capture. When recording, it's crucial to choose a quiet environment, minimize any external noises, and place the microphone close to the speaker. Using headphones can help in real-time monitoring of audio quality. In the post-production phase, employ tools for noise reduction, apply equalization (eq) to enhance voice clarity, and use compression to ensure volume consistency. Normalizing the audio can help maintain a standard output level.