Shulou(Shulou.com)06/01 Report--

This article mainly introduces python how to draw the audio spectrogram, the article introduces in great detail, has a certain reference value, interested friends must read it!

This paper introduces how to draw the spectrogram of audio through the pyplot of python.

Spectrogram, that is, speech spectrum, also known as time-frequency diagram, Abscissa is time, ordinate is frequency.

Let's take a look at a spectrogram drawn by audition, which looks like this:

Pay attention, do you see any bright stripes?

These voice prints indicate that the frequency is concentrated on a certain value in a certain time range. Moreover, the frequency of the concentration is represented by brightness.

The whole picture is a collection of voiceprints of frequencies.

Through the spectrogram, we can analyze the content of the voice, such as initial consonant, tone and other data, of course, we can also compare the voiceprints of different time intervals to get more information.

The method of drawing a spectrogram is very similar to drawing a waveform. Xiaocheng no longer posts the complete code. Readers can follow the official Wechat account of "Guangzhou Xiaocheng" and consult the introduction of the previous article.

Here, only the code for the difference is given, see the screenshot below:

After running (the operation method is the same as the previous introduction), you can see the spectrogram, and Xiao Cheng provides several screenshots.

Single-channel spectrogram:

For example, the two-channel spectrogram:

The above is all the contents of the article "how to draw the Spectrum of Audio by python". Thank you for reading! Hope to share the content to help you, more related knowledge, welcome to follow the industry information channel!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.