mean effective pitch

例句：

1. 1.In music theory, mean effective pitch is the average of all the frequencies in a musical piece.
   在音乐理论中，有效平均音高是音乐作品中所有频率的平均值。
2. 2.The composer wanted to find a mean effective pitch that would harmonize well with the other instruments in the orchestra.
   作曲家想要找到一个有效的平均音高，与管弦乐队中的其他乐器很好地协调。
3. 3. The recording engineer adjusted the microphone settings to achieve a mean effective pitch that matched the desired soundquality.
   录音工程师调整麦克风设置，以达到与期望的声音质量相匹配的有效平均音高。