Hello! We are hoping to trial various external ultrasonic microphones with the new AudioMoth this field season and were wondering what people have for recommendations for microphones? We will be using the devices to record bats in California. Thank you for any input!
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I heard people that were not that enthusiastic about the Primo element. Unfortunately like the good old WM61, where you probably only find clones slold todat, you might also run into a fake Primo. If you want to try the SPU0410RL05-QB you could consider this model. ELV sells these with good documentation, adding just one resistor (about 5 kilo ohms) seems to work fine on my computer. I don't know the hardware of the 1.2.0. version board but what is described here in the link below, lets me think this will work. The attached picture shows a similar microphone to ELV Bausatz Mikrofon MEMS1. I will sent out one to a friend soon to test but maybe someone else has the chance to test this as well, specially a comparison beween the Knowles SPU and the Primo element would be nice. Micbooster also sells the SPU element but seems to need more external components.