Assigning time on x axis for audio samples

Question

Sonia Wiemann 2012-4-8

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/34874-assigning-time-on-x-axis-for-audio-samples

Hello,

I have audio samples and I know the sampling rate (44.1KHz per sec)) I also have loads of samples of varying lengths(titled calla etc). Is there a way for me to assign time in msec on the x axis in a way that I do not have to customize for each sample length?

Thanks! Sonia

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Wayne King 2012-4-8

2
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/34874-assigning-time-on-x-axis-for-audio-samples#answer_43755

在 MATLAB Online 中打开

You can create a time vector for your longest recording and then use subsets for a particular vector.

If N is the length of the longest:

   Fs = 44.1e3;
   t = 0:1/Fs:(N*1/Fs)-1/Fs;

Then for a particular vector, say x:

   L = length(x);
   tx = t(1:L);

1 个评论
显示 -1更早的评论隐藏 -1更早的评论

Sonia Wiemann 2012-4-16

I am very new to matlab so I am very likely doing something wrong. Every time I try to use this code I get a message that says "index exceeds matrix dimensions. maybe I should start with a more basic question.

请先登录，再进行评论。