Search found 2 matches

by Sea_of_Cortez
Mon May 02, 2011 6:12 pm
Forum: General Audio Programming
Topic: Efficient rendering of waveforms
Replies: 4
Views: 9220

Re: Efficient rendering of waveforms

So is it using the first mechanism described above? Having read the relevant portion of A Fast Data Structure for Disk-Based Audio Editing (Mazzoni & Dannenberg, Computer Music Journal Summer 2002) I am not so sure... unless the algorithm outlined there no longer applies? Or does Audacity actually ...
by Sea_of_Cortez
Tue Apr 26, 2011 12:31 am
Forum: General Audio Programming
Topic: Efficient rendering of waveforms
Replies: 4
Views: 9220

Efficient rendering of waveforms

Hello, I have recently been experimenting with drawing waveforms, and digging in to the Audacity source code for (invaluable) tips and tricks. I think I now have a good grasp of what's involved in drawing waveforms efficiently, basically: 1. Compute and cache a reduction, by extracting maxima/minima...