Anyone interested in ecasound should also check these out. The new 1.5.x versions of ecasound contain a lot of interesting changes and new additions. In addition to ecasound and qtecasound , a new ecatools set of command-line tools is added to the package. ALSA support has also been developed. The new 0.4.0 is fully supported and from now on, the ALSA libs are loaded at runtime.
Many features are still under work.
See qtecasound manual page for my comments on this issue. And as always, bug reports and suggestions are very welcome. From now on development versions of ecasound will also be available on the download page. I use these versions myself, but I can't guarantee that all features work. On the other hand, development versions always contain the latest bug fixes.