@zip

I found that sourcing data from a `WAVFileSource` and then using `DecimatorBlock` or `DownsamplerBlock` caused my flowchart to fail to initialize. As far as I can tell, `get_rate` is called...

I've just had to force-quit persephone due to it taking up 28GB of RAM. I'm running my own build of the latest: ``` persephone main ●$ git rev-parse HEAD 47e68f8bdf369299ee20b2852240b276c53b6b07...

Users are required to manually set `to`, `cc`, `bcc`, and `fileData` to empty arrays before using them.