To broadcast a novel, a sound card was needed to improve the sound quality and make the speech more lively and interesting. A sound card was a hardware device specifically used for audio processing. It could convert digital audio signals generated by a computer into signals suitable for singing, broadcasting, and other applications, making the sound more natural, clear, and loud. Price wasn't the only consideration when choosing a sound card. Generally speaking, there were many sound cards to choose from within the budget range of 0 to 500 yuan. Here are a few popular sound cards for reference: The innovative Soundcore Audiobox sound card: This is an entry-level sound card for audio production and broadcasting applications with powerful functions and an easy-to-use interface. The price was about 300 RMB. 2. Yarui Sound Card: This is a professional audio sound card suitable for movies, TV series, music production and other applications. It supports a variety of audio format, supports MIDI input and output, and costs about 700 yuan. 3. External sound card: If you don't need to connect to a computer, you can choose an external sound card such as a Lotus interface or a Bezier interface sound card. The price is about 100 yuan. It should be noted that the sound card is not the only way to improve the magnetic sound. You need to adjust the audio settings and improve the microphone quality to achieve the best results.