hi guys,
i was wondering why do engineers use Decibel (dB) to represent some signal / noise or even gain. what is the logic behind it?. why not just say the Signal/Noise ratio is 5, amplifier gain is 5 rather than say 20dB.
thanks
i was wondering why do engineers use Decibel (dB) to represent some signal / noise or even gain. what is the logic behind it?. why not just say the Signal/Noise ratio is 5, amplifier gain is 5 rather than say 20dB.
thanks