Running program through Valgrind breaks terminal output (sometimes)

[sgreene570]

its kind of hard to screenshot but basically on some terminal emulators, using the ncurses UI through valgrind causes weird messages to be printed to the screen. @WillNilges might be able to elaborate. Weird error messages are something along the lines of XRUN and are not seen during normal program operation (as far as I know).

[WillNilges]

I think I know why that's happening. There's a printf() in playback.c that I suppose usually prints to /dev/null or something that prints there under special circumstances.