<p>I have calculated spectral entropy Hf and ADI as well as BI, NDSI, AEI, ACI for one minute acoustic recordings for ~ two weeks (one week in March and one in April) with the default settings of scikit-maad.</p>
<p>I plot their mean hourly values over a day and try to describe the soundscape accordingly.
But what when Hf is opposite to ADI? Shouldn't acoustic diversity and spectral entropy agree? At this same point I become high BI and high NDSI, so biophony is prevailing , but what else should I take into consideration?
This sample has a strong frequency band 0-1000 Hz, due to wind and sheep bells.</p>

CC BY-SA 4.0
2024-10-08T00:25:56.850Z
I think the questions posed here might be a bit too general and open-ended for the StackExchange format. The question of "what else should I take into consideration?" sounds like it might be better answered via a formal course on- or literature review of ecoacoustics. Perhaps if you could clarify why you think acoustic diversity and spectral diversity should agree (e.g. provide a reference, provide some data, explain what and where you are recording, or post some data and results) you might be more likely to get a response.
Brian Miller
CC BY-SA 4.0
2024-10-08T09:16:05.237Z
Thanks Brian, I'll review the question and comeback with more details. All the best!
xrigeo
<soundscape><acoustic><spectral>
ADI and Hf results explanation
# ADI and Hf results explanation

(Asked by: username_0 on 2024-10-02)

I have calculated spectral entropy Hf and ADI as well as BI, NDSI, AEI, ACI for one minute acoustic recordings for ~ two weeks (one week in March and one in April) with the default settings of scikit-maad.

I plot their mean hourly values over a day and try to describe the soundscape accordingly.
But what when Hf is opposite to ADI? Shouldn't acoustic diversity and spectral entropy agree? At this same point I become high BI and high NDSI, so biophony is prevailing , but what else should I take into consideration?
This sample has a strong frequency band 0-1000 Hz, due to wind and sheep bells.

**Tags:** soundscape, acoustic, spectral

> **Comments:**
> **username_1**: I think the questions posed here might be a bit too general and open-ended for the StackExchange format. The question of "what else should I take into consideration?" sounds like it might be better answered via a formal course on- or literature review of ecoacoustics. Perhaps if you could clarify why you think acoustic diversity and spectral diversity should agree (e.g. provide a reference, provide some data, explain what and where you are recording, or post some data and results) you might be more likely to get a response.  
> **username_0**: Thanks username_1, I'll review the question and comeback with more details. All the best!  

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