in simple_audio example pause does not work

[ndr-brt]

OS: Ubuntu 19.10
rustc: 1.42.0

how to reproduce: run the simple_audio example:
cargo run --release --example simple_audio

The application starts, sound works, also pitch up/down with up and down keys works.
According with the code, when Key::Space is pressed, stream should pause, but it keep sound.
Also pitch up/down keep working after space key pressed.

[mitchmindtree]

Thanks for the report @ndr-brt !

There are some known issues with play and pause on the ALSA host atm, there's discussion on an open PR here if you're interested. As a fellow linux-er, you might also be interested in following the JACK implementation PR here.