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Is this an expected output of the I2S MEMS? #48
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Would this level of ambient noise be considered normal for an I2S MEMS microphone? It sounds good to me, but just curious if others have even better results? Curious if the lower range has that ambient/background noise. Seems like it would since they are pretty sensitive. Audio of a Robin: Spectrogram from the middle of the night: |
Replies: 3 comments 3 replies
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IMHO, the background sounds like true background sounds not a like a That being said, I have tried the high-pass filter and do not see a change in my recorded sound, so I am not sure that it works. (i set the high pass filter to 1.5k and there was still a band of unchanged sound at or below the limit.) |
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I set the HP filter in Birdnet-go to 280. Ill try turning that off and setting it on the esp32 gui and see if I see the same. |
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I can definitely hear a difference in the recorded sound, not sure what would be different with yours. No Filter Filter @ 1500 Filter @ 280 |
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It sounds very good to me |
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Thanks for creating this btw! |
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Right on, just wanted another set of ears to make sure, appreciate the replies! |
IMHO, the background sounds like true background sounds not a like a
random hiss.
That being said, I have tried the high-pass filter and do not see a change in my recorded sound, so I am not sure that it works. (i set the high pass filter to 1.5k and there was still a band of unchanged sound at or below the limit.)