audio frequency band

例句：

1. 1. The audio frequency band is a crucial part of the recording process.
   音频频率带是录音过程中至关重要的部分。
2. 2. The engineer needs to tune the audio frequency band to ensure clear sound quality.
   工程师需要调整音频频率带，以确保音质清晰。
3. 3. The audio frequency band is used to transmit digital signals over long distances.
   音频频率带用于在长距离上传输数字信号。