Separate "extractors" export

[jakubfiala]

This is a small change which opens up access to the internal extractor functions for processing arbitrary Float32 data.

Useful because:

• enables offline AFE
• enables FE on non-audio data

[hughrawlinson]

Just a quick note, offline AFE was already possible with OfflineAudioContext or requiring non-main files from the package, but this makes it really convenient :) Thanks! 👍

[hughrawlinson]

Actually, maybe consider adding a test so that in the future we know immediately if for any reason this breaks?

[jakubfiala]

Indeed it was, my bad 😊 good point, might add the test later

[hughrawlinson]

Sorry to be pedantic about it, and I realize that we're not comprehensively tested as it is (when I realistically have time to do something about it I'll investigate metrics for determining testedness and work on improving those), but I think it's probably for the best to only add this once there are tests for it so that we don't slip further back on our testedness. Of course, @jakubfiala and @nevosegal should feel free to overrule me, three person open source core teams are perfect for that kind of governing 😄

I'm happy to write the tests myself this week assuming that you don't mind waiting a few days for this to get merged to master and published to bower and npm?

[hughrawlinson]

@jakubfiala is this still relevant after #95?

[hughrawlinson]

Everything done in this was done in v3.0.0, closing.