Table 2. Detailed overview of sound sensors applied in pig farms to monitor health and detect disease symptoms

Model Frequency response Sensitivity Manufacturer
Shure MV7 20 to 20,000 Hz −5 dBV at 1 kHz Shure, Illinois, USA
Shure 16A 50 to 50,000 Hz −68 dB Shure, Illinois, USA
WXS8800-004B 20 to 12,500 Hz 30 to 120 dB Polysense Technologies Inc., California, USA
ECM-3005 50 to 16,000 Hz 6 mV/Pa MONACOR, Bremen, Germany
MKE 2 20 to 12,500 Hz 5 mV/Pa Sennheiser, Wedemark, Germany
LIQI LM 320E 100 to 16,000 Hz 14mV/Pa Shenzhen Liqi Electronic Technology Co., Ltd. China
Pillar cm-5010 pro 40 to 16,000 Hz −40 to ±2dB Comsonic Co,. Ltd., Korea
Sennheiser ME 67 40 to 20,000 Hz 50 mV/Pa ± 2.5 dB Sennheiser Electronic GmbH & Co. KG, Germany
Sound sensor (MAX9814) 20 to 20,000 Hz 20 to 60 dB Maxim Integrated, USA
Mrobo M66 50 to 16,000 Hz −54 to ± 3 dB Morbo, China
Panasonic, WM-61A 20 to 20,000 Hz −38 to ± 3 dB Panasonic Corporation, Japan
M260C 30 to 20,000 Hz −34 dB Audio-Technica Corporation, Japan
Lenovo B610 8 to 48,000 Hz ≥ 80 dB Lenovo, Beijing, China
JVC GR-DVL520A Digital camcorder Victor Company Ltd., Japan
Sony ICD-UX560F Digital voice recorder Sony Corporation, Japan