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Thread: Raw HEX data to audio ?

  1. #1
    Just burned his ISO MasterCodeMonkey's Avatar
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    Jul 2009

    Question Raw HEX data to audio ?

    So here’s the crack (no pun intended) I’ve got about 6000 RTR packets in HEX that I just know are 8 bit PCM audio. These were intercepted in transmission and after scrubbing away the headers I’m happy I’ve got just the raw data but how, oh how can I resolve this back into audio? I wouldn’t even begin to think it possible or practical to manually put all 6000 odd packet together and try and run them so am I looking for an app? I tried the mighty oracle GOOGLE (all hail) but I think this is a little to specific even for her.

    Beliver or not , if god was real, he'd be a programmer

  2. #2
    Super Moderator lupin's Avatar
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    Jan 2010


    This might be the wrong forum for that type of question, it sounds more like an incident response/intrusion analysis/network forensics type of question, not a penetration testing type of question.

    Anyway, you could try something like the below:

    Pulling binaries from pcaps « SANS Computer Forensics, Investigation, and Response
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  3. #3
    Very good friend of the forum Gitsnik's Avatar
    Join Date
    Jan 2010
    The Crystal Wind


    I agree with lupin, but if you know it's PCM, just export the raw data in collation (packet 1, packet 2, packet 3 etc.) and save the file as a .wav.

    But read that binary pcap document too! Just in case the .wav trick doesn't work (hint: concat the packets and then run the file utility on them to see what they are when put together, if file can work it out you probably have an ok file to work with)
    Still not underestimating the power...

    There is no such thing as bad information - There is truth in the data, so you sift it all, even the crap stuff.

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