SynthJacker 5.4 Update
SynthJacker ($4) added some nice features with the 5.0 and 5.4 updates:
New output settings:
1) You can now select the file format of the exported note slices from AIFF, WAVE or CAF.
2) There is an option to retain the original session recording in CAF format (up to 10 minutes or more) if you want to do your own slicing with another app or in a sampler tool.
3) Sampled notes can be set to 10 seconds of recording (trimming reduces from this max)
NOTE: The SFZ file produced doesn't include any info about velocity needed for layering.
AudioLayer works well using the Patch-Note-Velocity naming scheme for a bulk import.
NS2 works best by saving samples in 3 velocity labeled directories.
Auria Pro and StageLight SFZ imports will be a problem without velocity details to create layers but single velocity sample sets might work.
Recording from AU's works well and produces stereo sample sets.
External hardware works well but only records in mono at this time.
The developer (@coniferprod) continues to accept enhancement requests and is delivering regular updates.