Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Implementing simple spectral denoising for environmental audio
  recordings   This technical report details changes applied to a noise filter to facilitate
its application and improve its results. The filter is applied to denoise
natural sounds recorded in the wild and to generate an acoustic index used in
soundscape analysis.

25
The categories of this paper are: patt-sol
0
The categories of this paper are: hep-ph
7
The categories of this paper are: hep-th
37
The categories of this paper are: supr-con
20
The categories of this paper are: acc-phys
10
The categories of this paper are: q-bio
24
The categories of this paper are: dg-ga
16
The categories of this paper are: stat
5
The categories of this paper are: gr-qc
22
The categories of this paper are: chao-dyn
26
The categories of this paper are: bayes-an
34
The categories of this paper are: chem-ph
18
The categories of this paper are: econ
33
The categories of this paper are: plasm-ph
31
The categories of this paper are: ao-sci
8
The categories of this paper are: hep-ex