Re: Plotting wav file
On Mon, 21 Sep 2009 11:58:30 -0700, Maggie la.f...@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? -- 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) -- http://mail.python.org/mailman/listinfo/python-list
Re: Plotting wav file
On Sep 21, 3:07 pm, Rami Chowdhury rami.chowdh...@gmail.com wrote: On Mon, 21 Sep 2009 11:58:30 -0700, Maggie la.f...@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? -- 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) .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 92.125:92.355 150.125:150.355 179.125:179.355 239.625:239.855 304.75:304.98 321.75:321.98 382.25:382.48 396.75:396.98 408.75:408.98 515.25:515.48 549.375:549.605 609.875:610.105 621.875:622.105 691.875:692.105 740.375:740.605 752.375:752.605 825:825.23 851.5:851.73866:866.23 955.5:955.73984.5:984.731042.5:1042.73 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 thanks -- http://mail.python.org/mailman/listinfo/python-list
Re: Plotting wav file
On Mon, 21 Sep 2009 12:13:30 -0700, Maggie la.f...@gmail.com wrote: On Sep 21, 3:07 pm, Rami Chowdhury rami.chowdh...@gmail.com wrote: On Mon, 21 Sep 2009 11:58:30 -0700, Maggie la.f...@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 92.125:92.355 150.125:150.355 179.125:179.355 239.625:239.855 304.75:304.98 321.75:321.98 382.25:382.48 396.75:396.98 408.75:408.98 515.25:515.48 549.375:549.605 609.875:610.105 621.875:622.105 691.875:692.105 740.375:740.605 752.375:752.605 825:825.23 851.5:851.73866:866.23 955.5:955.73984.5:984.731042.5:1042.73 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) -- http://mail.python.org/mailman/listinfo/python-list
Re: Plotting wav file
On Mon, Sep 21, 2009 at 4:11 PM, Rami Chowdhury rami.chowdh...@gmail.com wrote: On Mon, 21 Sep 2009 12:53:44 -0700, Maggie la.f...@gmail.com wrote: I am by far more acquainted with R and generally would use it in this case, however, this particular experiment does require a lot of AFNI work, therefore I am a bit lost. the .wav was generated via -- waver -WAV -TR 2.5 -tstim `cat a_STD_W.1D` a_STD_W.WAV Could you post a small snippet of the .wav file itself? My understanding is that it's simply a column of numbers, in which case it should be fairly simple to plot them. On Mon, 21 Sep 2009 13:14:08 -0700, Maggie la.f...@gmail.com wrote: You're correct! This is the beginning of the .wav file. 0 0 0.19385 6.79566 7.62695 1.91679 -1.71133 [snip] and so on.. That seems fairly straightforward -- assuming the .wav file is small enough, I'd suggest simply reading the values into a list, and then using one of the many Python plotting packages (http://wiki.python.org/moin/NumericAndScientific/Plotting) to graph them however you need. If you're familiar with R, I might suggest using RPy (http://rpy.sourceforge.net/rpy.html), although I've not used it myself. -- http://mail.python.org/mailman/listinfo/python-list
Re: Plotting wav file
On Mon, 21 Sep 2009 12:53:44 -0700, Maggie la.f...@gmail.com wrote: I am by far more acquainted with R and generally would use it in this case, however, this particular experiment does require a lot of AFNI work, therefore I am a bit lost. the .wav was generated via -- waver -WAV -TR 2.5 -tstim `cat a_STD_W.1D` a_STD_W.WAV Could you post a small snippet of the .wav file itself? My understanding is that it's simply a column of numbers, in which case it should be fairly simple to plot them. -- 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) -- http://mail.python.org/mailman/listinfo/python-list
