SynthMaker

Waveform Display

Archive · 2006 2 old posts

From the original SynthMaker forum (2004–2014), with its members’ names and dates.

tecknoize ·

Hi! I'm trying to draw the waveform of a wave file. Once I have the buffer, I transform it to a float array using the stereo buffer to float arrays module. I'm trying to get the best accuracy so I set the step to 1. I then draw the array using GraphLineCL, but it's so heavy I can't move! I know, trying to draw a line using 44100 points ( 1 sec sample ) is somewhat crazy, knowing that my goal is to be able to load a whole song (from 3 to 15 min!).

I know about the "bar-like wave display", but I would like to zoom in until I see the sample point, like in kontakt.

Any idea?

sambean ·

You may have to adjust the step number depending on the zoom, so when zoomed out you only look at every 1000 samples, when zoomed in fully display every one...

Here's a link to a version I made before the float array module was available, it uses the anaylser to display the samples...

Draggable Sample Viewer

Cheers

Sam

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