[Eeglablist] Matlab Video Processing Question

[Davide Baldo]

Thanks a lot!!!!! :)

On Mon, Sep 10, 2012 at 8:43 AM, Silvia Lipski <s.lipski at yahoo.de> wrote:

> Dear Davide,
>
> I have been using mmplay, mmwrite, and mmread provided by Micah Richert:
>
> http://www.mathworks.com/matlabcentral/fileexchange/15880-mmplay
> http://www.mathworks.com/matlabcentral/fileexchange/15881-mmwrite
> http://www.mathworks.com/matlabcentral/fileexchange/8028-mmread
>
> Both video and audio from .avi files could be played simultaneously, saved
> and manipulated.
>
> Best regards,
> Silvia
>
>
>   ------------------------------
> *Von:* Mikołaj Magnuski <imponderabilion at gmail.com>
> *An:* eeglablist at sccn.ucsd.edu
> *Gesendet:* 0:32 Montag, 10.September 2012
> *Betreff:* Re: [Eeglablist] Matlab Video Processing Question
>
>
> Dear Davide,
>
> Unfortunatelly, reading video data (both through mmreader or VideoReader)
> imports only the visuals, the audio is not read, and thus when saving - you
> save without sound.
>
> I'm not sure if there is a convenient workaround (within the realms of
> matlab) to your problem. Reading sound from video file does not seem to be
> supported by matlab core functions. However, if you do have Computer Vision
> System Toolbox - the vision.VideoFileReader object does support this. I'm
> not sure if saving video with sound is any easier, but at least you can
> import the sound to matlab.
>
> http://www.mathworks.com/help/toolbox/vision/ref/vision.videofilereaderclass.html
>
> Nevertheless, I think that your best soulution could be to combine the
> sound from your original video with the transformed soundless video that
> matlab produced outside of matlab, unless it needs to be done automatically.
>
> So, generally - it's quite complicated (read: "as far as I know -
> impossible") to load and save with sound with basic matlab functions. Sorry
> I couldn't help you more.
>
> Mikolaj
>
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