Ubuntu 16.04 LTS xenial
qsstv was installed from the repo, version 8.x. no audio input to qsstv, and was getting the error in the title. solution: go to
http://users.telenet.be/on4qz/qsstv/...tallation.html and follow the instructions, including installing the dependencies, and install from source code. the 8.x version in the repo is broken.