JSSRC project is aimed at creating high quality audio resampler written in pure java. It is based on the SSRC High Quality Audio Sampling Rate Converter (http://shibatch.sourceforge.net/) by Naoki Shibata written in C. Naohide Sano ported the C code into java. Finally, a number of small modification were performed in order to have a java resampling service that is easy to use. You can find some examples of upsampling/downsampling in the test directory