Plotting wav file

Rami Chowdhury rami.chowdhury at gmail.com
Mon Sep 21 21:45:46 CEST 2009


On Mon, 21 Sep 2009 12:13:30 -0700, Maggie <la.foma at gmail.com> wrote:

> On Sep 21, 3:07 pm, "Rami Chowdhury" <rami.chowdh... at gmail.com> wrote:
>> On Mon, 21 Sep 2009 11:58:30 -0700, Maggie <la.f... at gmail.com> wrote:
>> > What would be the best way to plot a small .wav file in python? If
>> > there are any tutorials or sample code, I would really appreciate it!
>>
>> I'm sorry, what are you hoping to plot about the .wav file?
>>
>
> .wav file was generated from .1D file that contained times of
> occurrence of a stimulus within the experiment. The y-axis is the TR
> and the x-axis is supposed to be the length of y. I am hoping to see
> plot representation of .wav file so i can align it to time series fMRI
> data via independent component analysis.
> this is the sample .1D file that was converted into the .wav file --
>
> 2.625:2.855	46.125:46.355	92.125:92.355	150.125:150.355
> 179.125:179.355	239.625:239.855	304.75:304.98	321.75:321.98
> 382.25:382.48	396.75:396.98	408.75:408.98	515.25:515.48
> 549.375:549.605	609.875:610.105	621.875:622.105	691.875:692.105
> 740.375:740.605	752.375:752.605	825:825.23	851.5:851.73	866:866.23
> 955.5:955.73	984.5:984.73	1042.5:1042.73	1071.625:1071.855
> 1115.125:1115.355	1158.625:1158.855	1221.625:1221.855
> 1248.125:1248.355	1274.625:1274.855	1374.25:1374.48	1398.25:1398.48
> 1427.25:1427.48	1500.25:1500.48	1529.25:1529.48	1558.25:1558.48
> 1611.375:1611.605	1666.875:1667.105	1698.375:1698.605
> 1715.375:1715.605	1773.375:1773.605	1833.875:1834.105	1848.5:1848.73
> 1947.5:1947.73	1964.5:1964.73	1981.5:1981.73	1996:1996.23
> 2085.5:2085.73	2114.625:2114.855	2126.625:2126.855	2138.625:2138.855
> 2288.625:2288.855	2317.625:2317.855	2334.625:2334.855	2387.75:2387.98
> 2421.75:2421.98	2433.75:2433.98	2518.25:2518.48	2549.75:2549.98
> 2564.25:2564.48
>

Ah, thank you for the clarification.  When I've seen the '.wav' suffix  
used, it's usually indicated an audio file -- hence my confusion. I don't  
know the first thing about neuro-imaging, but a quick search revealed a  
few things. I presume you're using a program like  
http://cnl.web.arizona.edu/waver.htm to generate your .wav file?



-- 
Rami Chowdhury
"Never attribute to malice that which can be attributed to stupidity" --  
Hanlon's Razor
408-597-7068 (US) / 07875-841-046 (UK) / 0189-245544 (BD)



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