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Java Sampling Rate Conversion

In my Java code, I would like to convert a WAV file with a frequency of 44100 Hz to a WAV file with 8000 Hz. I know that I have a low-pass filter and then decimate (+ interpolation) (DSP theory), but I don't want to implement it from scratch.

I am looking for a library that can efficiently execute it. Do you know anyone?

I can read wav files into the buffer, and also write wav files from the buffer to the file if this makes the process easier.

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You should watch FMJ . It provides a wrapper for ffmpeg that can efficiently handle all kinds of conversion work (including sound oversampling).

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