[PD] Pd and gpgpu

[Roman Haefeli]

hi all

i made a silly patch, that let's you control the volume of an audio
signal using [colorRGB],  just to illustrate, that audio can be
processed on gpu by using gem and puredata. i'd be interested, if
someone has a more meaningful application using this approach. people
talked about doing convolution on gpu. what does it need to actually do
it? 

http://romanhaefeli.net/software/pd/dsp_on_gpu.pd

roman


On Sun, 2007-11-11 at 09:09 -0600, chris clepper wrote:
> This chain is essentially the process although a few details prevent
> it from actually working properly. 
>  The audio needs to remain in floating point format and pix_texture
> and the read back from the screen are integer based.  The solution is
> to use an offscreen framebuffer object (like gemframebuffer) to create
> a floating point rendering environment for the audio.  This project
> would be best done as a custom object specific to audio rather than
> trying to use GEM. 
> 
> I don't think this will be very efficient for a single stream of audio
> since the data size is so small and the time to read back is so long.
> Perhaps it could enable something like computing an FIR on 16 or more
> channels at once or doing convolution to emulate an entire mixing
> console though. 
> 
> On 11/10/07, Roman Haefeli <reduzierer at yahoo.de> wrote:
>         audioIn~
>         |
>         [pix_sig2pix~]
>         |
>         [pix_texture]
>         |
>         [doSomeStuff]
>         |
>         [pix_snap]
>         |
>         [pix_pix2sig~]
>         |
>         audioOut~
>         
> 
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