equalizer supporting bar

例句：

1. 1. The engineer used an equalizer to adjust the sound levels in the recording studio.
   工程师使用均衡器来调整录音棚里的声音水平。
2. 2. The singer adjusted her microphone settings using an equalizer.
   歌手通过均衡器调整麦克风设置。
3. 3. The audio engineer used a digital equalizer to enhance the sound quality of the music track.
   音频工程师使用数字均衡器来增强音乐轨道的音质。