portaudio example, stream issue with Raspberry Pi 2 B

[danielburhans]

When building the portaudio example, playback of tracks on my Raspberry Pi 2 B are "choppy or stutter" (best way I can describe it).

I have tested just go with portaudio I/O examples and those play audio correctly on the Pi.

when commenting out or removing these lines, it seams to fix the issue.

I have built the same example on my amd64 box and everything works fine, both before and after removing those lines.

Thank you for the great lib :+1:

[krak3n]

@danielburhans I also get audio underruns (which cause cut outs in the audio) on a Raspberry Pi but not on my OSX machine. I'll try removing those lines.