loudness contour selector

例句：

1. 1. The loudness contour selector is used to adjust the volume of audio signals.
   响度轮廓选择器用于调整音频信号的音量。
2. 2. Loudness contour selector helps in enhancing the sound quality by adjusting the balance between high and low frequencies.
   响度轮廓选择器通过调整高频和低频之间的平衡，帮助提升音质。
3. 3.In music production, the loudness contour selector is used to create a natural-sounding mix without overly boosting certain frequencies.
   在音乐制作中，响度轮廓选择器被用来创造一个自然的声音混合，而不过度增强某些频率。