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Loud High-Freq. Hiss

My AudioMoth lately has been producing a loud, high-freq. hiss on all my recordings. This happens no matter how I configure the unit.

What causes this and what can remedy it?

Thanks.

4 comments

4 Comments

wgpu239

Jul 04, 2023

Alex,

Thanks for your help. Here is an example. FYI, this was recorde with a 2KHz high-pass filter.

Alex Rogers

Jul 05, 2023

Replying to

If you record with the default settings, and record your normal speaking voice about 40 cm from the AudioMoth, does it sound okay? Has the microphone lost sensitivity? This might happen due to water damage.