[PD] audio glitch/pause while redrawing array

david daniell m at tinynumbers.com
Mon Jul 5 17:16:06 CEST 2004

Ok so I understand why the redrawing of arrays is so slow.... it seems 
like there's no data reduction in the redraw process, so for instance 
if I have an array that's 10 seconds long @ 44100 hz, it runs through 
all 441,000 data points in the rendering of the array on-screen.  So, 
of course there's a slow-down for that.  But is there any way to impose 
some sort of data-reduction in the visual rendering of the arrays?

As an example, if I have 3 one-second arrays on screen being redrawn 
every 500 ms, there is no noticeable glitching etc - but for 3 
10-second arrays, there's a very clear interruption in the audio-stream 
when the redraws occur.  So perhaps there would be some way to modify 
the array-drawing code to skip samples in the drawing process and only 
the minimum required to display the data?

If nothing else, maybe this would be a suggestion for the GUI 

- dwd

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