signal-to-noise ratio

noun

(sciences) A figure of merit comparing the strength of a signal carrying information to the noise interfering with it.

The signal-to-noise ratio of the audio recording was too low to hear the conversation clearly.

意味（1）

(sciences) A figure of merit comparing the strength of a signal carrying information to the noise interfering with it.

意味（2）

(colloquial) The proportion of useful or interesting information in a message or conversation.