Audio spectrum extraction from audio file by python
问题 Sorry if I submit a duplicate, but I wonder if there is any lib in python which makes you able to extract sound spectrum from audio files. I want to be able to take an audio file and write an algoritm which will return a set of data {TimeStampInFile; Frequency-Amplitude}. I heard that this is usually called Beat Detection, but as far as I see beat detection is not a precise method, it is good only for visualisation, while I want to manipulate on the extracted data and then convert it back to