Solved one of my rendering issues (phase shift)

[dysjoint]

Solved a couple things that I've posted about before.

My inconsistent playback was probably mis-matched sample rates. I can replicate it by playing 44.1 wav files with Waveform running at 48k, resulting in different peak levels with every pass and depending on where I start on the file. My mistake.

My issue that renders in Waveform don't null with the original file because of phase shift is only partly true. Renders do null perfectly as long as 'Proxy files' is turned off. At the moment I believe that the temporary render, or proxy file, is where the delay is generated.

I have included a screenshot that shows a waveform (in blue) that has been rendered 10 times with 'Proxy files' turned off. The original file at the top and render 10 below. It still matches perfectly and if I flip the polarity it nulls.

In red is the same waveform that has been rendered 10 times with 'Proxy files' turned on, the tenth render is shown below the original, and the delay is quite obvious. Played back with the original it sounds obnoxious, polarity flipped or not. One render alone gives audible phasing against the original. I've done 10 renders, both ways, to prove the point visually.

In the General settings/Editing there is an option to use proxy files by default, and each audio clip has the option to turn it on or off in the properties panel. It's claimed as a cpu saver, but also some of the clip effects appear to only work if 'proxy files' is on (clip volume, warp time etc)

Tested at 48k, 32 bit renders, using 'render to a new track', although 'render clip' gives the same result.