mp3 can not convert to silk?

[YWYONE]

Requested output format 'silk' is not a suitable output format>

[a-schild]

The bundled 4.x versions of ffmpeg do't support the silk format.
You can try to use your own ffmpeg binary which must have silk format support compiled in

[YWYONE]

Doesn’t ffmpeg used in all versions of jave2 support silk?