Rubber Band Library v1.5.0 is now available. http://breakfastquay.com/rubberband/ This release adds a key-frame mapping facility for managing variable stretch ratios within a single offline time-stretch pass, plus a more reliable transient detection mode for soft instruments and band-limited transient detectors to improve performance with compressed or lower-quality material. It is source and binary backward compatible with v1.4, though code written for v1.5.0 may not work with v1.4 (the new release adds one new function and one new enum). Chris