Compression ratio

نسبة الإنضغاط

Also known as 'slope', in a compressor/limiter, the ratio of change in input level (in dB) to the change in output level (in dB). For example, a 4:1 ratio means that for every 4dB change in input level, the output level changes 1dB.

English: compression ratio
Arabic: نسبة الانضغاط