My plan for PulseAudio as of this point (working with Freemangordon) is as follows:
1.Take the Harmattan PulseAudio blobs from http://mirror.thecust.net/harmattan-...seaudio-nokia/ and create a clone of them that is a drop-in replacement for those blobs. This will take a lot of work because of the complexity of some of the algorithms involved (e.g. "Audio Enhancement Package", "Audio Tuning", "Dynamic Range Compression" and the special stuff for Nokia ECI headsets)
2.Once that is done, take the Fremantle PR1.3 PulseAudio binaries, reverse engineer them using code from #1 above, code from https://gitorious.org/maemo-multimed...50603ff0c6632: and code from http://mirror.thecust.net/harmattan-...seaudio-meego/ and produce a set of 100% open binaries that is a drop-in replacement for the Fremantle PR1.3 PulseAudio binaries.
3.After that, enhancements can be made to support newer kernel interfaces plus the different hardware in the Neo900.

Is it worth looking at ladspa filters for some elements? Such as described here: https://www.bfccomputing.com/dynamic...or-pulseaudio/