compander

壓縮-擴充套件器、縮展器

學術名詞

• 壓伸器：電機工程、資訊
• 展縮器：電力工程
• 壓[縮]擴[展]器：電力工程
• (信號或波形)壓伸器：通訊工程

英文釋義

1. a system for improving the signal-to-noise ratio of a signal at a transmitter or recorder by first compressing the volume range of the signal and then restoring it to its original amplitude level at the receiving or reproducing apparatus.