Preston Lacey - 2014-01-12

Hello. Does the POST response include any error details that may help? If not, the first thing to check is that the encoder is producing a valid file. Try testing the file with the official flac tools available at https://xiph.org/flac/download.html . If you decode the file back to wav with that, or use the test option, it should say if there's an issue with the file. If there is no issue with the flac file itself, then next check to ensure they're producing the same format(sample rate, sample size, etc). If they differ, use the FLAC_FileEncoder.setStreamConfig() method to set the stream settings to match.