How to Integrate a vector?

28 次查看（过去 30 天）
Fourier
Fourier 2017-8-30
评论： Star Strider 2019-10-21
I have an audio file that gives me a long vector when I read it.I am asked to integrate the response over a specific time. My approach is to calculate time 'x' at which the vector reaches its 'ith'element. and then I will integrate it over the time. Can anyone guide

请先登录，再回答此问题。

采纳的回答

Star Strider
Star Strider 2017-8-30
To integrate a vector, use the trapz (link) or cumtrapz (link) function, depending on the result you want.
You probably need to calculate a time vector as well. Since audio files are column-major matrices (each column is a different channel), this will work to calcualte the time vector, with ‘y’ being your sound file, and ‘Fs’ your sampling frequency:
tv = linspace(0, size(y,1), size(y,1))'/Fs;
  6 个评论
显示 4更早的评论
Peter Druzba
Peter Druzba 2019-10-20
Thanks, very helpfully !
Star Strider
Star Strider 2019-10-21
@Peter Druzba — My pleasure!

请先登录，再进行评论。

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Numerical Integration and Differentiation 的更多信息

标签

Community Treasure Hunt

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

Start Hunting!

Translated by