Ableton Live - Rewire Solution Using Sonar X2, or greater:
I experienced severe
Audio degradation using Sonar rewire with Ableton Live 9 as sound source. The sounds of Ableton are very much worth using in many cases but did not sound the same through Sonar Rewire. I believe i found one of the problems.
In Sonar X2, > you might try these steps:1. selecting under Edit/Pref. /Audio/ Playback and Recording - select "share drivers with other programs".
2. When Ableton Rewire instrument is created be sure and create as many dedicated "MIDI" channel tracks as will be accessed in Abelton Live.
Be sure each midi track in Sonar is set to its appropriate midi channel, example: midi ch 1 -8, not Omni. (THIS possibly alleviates a phase problem in the rewire Set-up by over-riding the global ch 1 and creating Instrument channels (even with a common stereo audio output.)
3. In Ableton Live - likewise assign midi tracks for Sonars purposes.
WHEN i did these things the stereo image was greatly improved!
I use Sonar X2 producer and Abelton Live 9 with Echo AudioFire 4 firewire in Asio 24/48