resample / upsample sound frames from 8Khz to 48Khz (Java/Android)

Question

The application that I am trying to develop for andriod, records frames at 48Khz (PCM 16bits & mono) and sends them to the network. Also, there is an incoming stream of

Answer 1

Linear interpolation introduces artifacts. There is nice java library with high-quality resampling - JSSRC (http://jssrc.khadkevich.org/).

The code is now available on Github: https://github.com/hutm/JSSRC