A MEMS microphone’s sensitivity rating is a measure in dB of how much output a microphone produces for a given sound level. A larger sensitivity number is better, but the sensitivity number will typically be negative. Therefore, a sensitivity rating of -5 dB is better than a sensitivity rating of -25 dB. Analog outputs usually measure sensitivity in dBV which is decibels relative to 1 V_RMS, while digital is measured in decibels relative to full-scale output or dBFS. Sensitivity tolerance is another important specification, especially when using MEMS microphones for noise cancelation or array applications. Typical MEMS microphones carry sensitivity tolerances from ±3 dB down to ±1 dB, which allows for closer matching of sensitivities from microphone to microphone. This is one specification where MEMS microphones hold a distinct advantage over traditional electret condenser microphones.