How to invert a sample?
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I'm doing a project related to DSP. I have a doubt regarding sampling. My project is about inverting the samples of an audio signal. My doubt is how to invert samples by using MATLAB. For example if we take 16 samples the 0th sample should be 15th and the 15th sample should be 0th one. Can you please help me implement this in MATLAB.
5 个评论
Paulo Silva
2011-3-3
0th sample?! are you sure you are doing DSP related project?
ramya
2011-3-3
Paulo Silva
2011-3-3
1th should be more correct for the first sample than 0th sample, 0 usually means none or nothing, not the first of!
Sean de Wolski
2011-3-3
Whoever tagged "iddon'treaddocumentation', love it!
Paulo Silva
2011-3-3
I know that person, he's crazy!
采纳的回答
Sean de Wolski
2011-3-3
doc fliplr
doc flipud
5 个评论
ramya
2011-3-3
Paulo Silva
2011-3-3
Sean just gave you two functions you might need, you didn't bother to see what they do did you?
ramya
2011-3-3
Paulo Silva
2011-3-3
please read matlab's documentation and don't expect others to give you the complete code.
ramya
2011-3-3
更多回答（2 个）
Paulo Silva
2011-3-3
Ok here's my worst code to do that for you
Sample=[3 4 5 7 9 8 4 3 5 6 7]
OutSample=[];
for lo=numel(Sample):-1:1
OutSample=[OutSample Sample(lo)];
pause(1) %the loop is too fast, lets slow it down
end
OutSample
6 个评论
Sean de Wolski
2011-3-3
You can also just ">> open fliplr" and see the easy vectorized method.
Paulo Silva
2011-3-3
Sean that's obviously too complicated
ramya
2011-3-3
Paulo Silva
2011-3-3
ramya please accept Sean's answer, although he didn't make your code he did provide the necessary tips.
ramya
2011-3-3
ramya
2011-3-3
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