audio channel

例句：

1. 1. The audio channel is the main source of sound for this device.
   音频通道是该设备的主要声音来源。
2. 2. The audio channel is crucial for delivering high-quality sound to users.
   音频通道对于向用户提供高质量声音至关重要。
3. 3.The audio channel is used to transmit audio signals from one location to another.
   音频通道用于从一个地点传输音频信号到另一个地点。