是否有 Linux 命令行工具可以使用 Hann 窗生成能量平均窄带光谱？我想从风力涡轮机的音频中获取频谱。规格说明如下：
The two one-minute measurements shall be divided into 12 ten-second periods,
from which 12 energy averaged narrowband spectra using the Hanning window
are obtained.
和
The bandwidth of a critical band shall be determined by
critical bandwidth = 25+75(1+1,4[f_c/1000])^0,69
where f_c is the center frequency in HZ.
我认为这里的汉宁窗是指汉恩窗，如https://docs.scipy.org/doc/scipy-0.19.0/reference/ generated/scipy.signal.hanning.html。我发现有一个名为 spek 的工具，但当我尝试编译它时，它说
configure: error: Package requirements (libavcodec >= 53.25 libavformat >= 53.17 libavutil >= 51.17) were not met:
No package 'libavcodec' found
No package 'libavformat' found
No package 'libavutil' found
然后我尝试了
sudo apt install libavformat
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package libavformat