Detecting sound isn’t as simple as a mic into an input. Signal conditioning and gain control are important, and are incorporated into this Grove sound sensor. Using an electret mic and two-stage high-pass filter, it creates a nice detectable envelope signal for your Grove project. This sensor differs from the Grove Loudness Sensor by having a fixed output gain rather than an adjustable one using a potentiometer.

Specifications:

• Grove-compatible interface (analog)
• Fixed output gain
• 4 ~ 12VDC
• 16 ~ 20kHz mic frequency sensitivity
• 48 ~ 52 dB mic sensitivity
• >54db SNR ratio

Links: