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I was surprised I couldn't find an answer to this from a search - maybe I'm using the wrong search terms.

I have what I suspect is a silk compressed datastream (see below) that I would like to turn into a audio file (something like wav ideally). I'm planning on doing this in python, however I have no idea how to do this - I don't get any reasonable searches for how to decompresses the data with silk - maybe there's no silk packages for python (?).

Silk data: uz+ACgEAEAELgD4EQgEWAKV4mxnepfmhxKCQxAnKVNaHhKRXPIsmAH5RjXmJV0u+WTmrvgyCKxcraehjo/ZeKcFjksXQZEeOju4hLNv/MAB9KA7ww14Vc0ndYPB7dDXoXTexuxcW0Jg/diMgdH5ijWhe02Ch48KX86qJZYFyZV81AH76qCgh9AXliMdyWEgWTMbRD6xMX37WJALrXlSnxymIloSq2KGwXCcMXzQiSQIrcLVNfqdNJACCluFOIRKPmugUvsLZmnD04X0xhpAuNkwJECK4t51MBOWNWJlCAIDyZlJwWI45EPTjBB6yKyGOclu96qBV2MhFAh1d2J7WDZwe6YxOVu/BGkGcur9qTP85ZRfjANoiQxQrWvpoHFBFBy0AfX6k8XvbSwrk2nUAEP3P6kcmXORKUNKeu8HDnOUflQqtA5AkkTiun77fZrqnimIfWg==

user6916458
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1 Answers1

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First, validate your assumption that it is SILK. If you open an encoded binary file, it should start with the header "#!SILK_V3". Your excerpt seems like some base64 encoding (maybe the raw binary?). If you do get to the real silk data, you can decode it with the original Skype Silk SDK. There is probably no python port for this, but you can invoke external libs from python. Once decoded, use ffmpeg/Audacity raw import/other to convert to WAV/mp3 and test the audio. Then in python, using the wave library or wavio api should work.

Ferenc Kovács
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