Plot with respect to time, not samples

15 次查看(过去 30 天)
If I record me voice, using audiorecorder, for 2 seconds at a sampling frequency of 8,000 Hz, then I will have 16,000 values. If I plot this, the x-axis goes from 0 to 16,000 - How do I make the x-axis represent time in seconds, i.e., from 0 to 2 seconds instead of 0 to 16,000 samples?

采纳的回答

Aquatris
Aquatris 2018-7-21
编辑:Aquatris 2018-7-21
You define the time variable yourself. You know that you sample at 9 kHz so you know that between each sample there is 1/8000 seconds. So;
time = 0:1/Fs:16000/Fs-1/Fs;
Then to plot you do;
plot(time,data)
If you already measured the time as well, just use that variable.

更多回答(0 个)

类别

Help CenterFile Exchange 中查找有关 Simulation, Tuning, and Visualization 的更多信息

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by