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For example, I have a small piece of a song, about 20 sec and there is a soundtrack of 4 hours where this 20 sec somewhere definitely is. So is there a software where i can upload my little piece and a big one, press a button and it will give me a time, where in the big one the small one starts?

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  • If I were you, given the lack of available existing software, I would rework this question to ask how to develop such a process, and then submit it to a more computer science oriented exchange. Think like this: automatically breaking the file into 20 second chucks and then somehow comparing the pattern of those chunks to that of your 20 second sample and returning matches above a certain similarity threshold.
    – user9881
    Jan 1, 2017 at 15:04
  • I already stated this to him also Doritostyle? You 'corrected' me then down voted me only to repeat what I already said! Twice!
    – Melloj
    Jan 2, 2017 at 20:41

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I have never heard of any that can do this. Its quite a specific task that not many people would ever use ...the only remotely similar use would be youtube who look at uploads and scan to see if there is any copyright music in uploads but not something that we can leverage from

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  • This is what I've said already. Despite being down voted several times. In the context of commercially available software it's a function that isn't provided. It's technically possible but for the sake of the OP and keeping it relevant I can't see how one would do it. Why it's so hard to understand!
    – Melloj
    Jan 2, 2017 at 20:38
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No, there isn't. The only way current software can do this is if you mark where it is so it can recall it. But then if you knew where it was you wouldnt need software to do it. Think about it though, how can you expect any software to know what part of a 4 hour long file YOU want?

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    well, considering everything inside computer is bytes, the program need to find exact same sequence of bytes from small part inside another one, the bigger. I think it is possible...
    – Shouchy
    Dec 28, 2016 at 11:27
  • I can assure you it isn't.
    – Melloj
    Dec 28, 2016 at 11:30
  • Technically it could be possible, as in forensic audiologists for the FBI could probably do it. But in the context of the creative industries it isn't something that is featured in audio DAWs. It's not a function most people need. Modern DAWs are incredibly complex in terms of programming and bugs with out adding useless features, developers try to give users features most people need. And most DAWs work invariably the same way. Your not going to find any software (certainly of all the popular DAWs) that will do some inconspicuous operation for your specific problem.
    – Melloj
    Dec 28, 2016 at 11:42
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    Check out digital signal processing - autocorrelation. It's certainly possible.
    – Mark
    Dec 28, 2016 at 13:01
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    @Melloj it's very dangerous to speak authoritatively about things you aren't intimately familiar with. This is certainly possible for the exact reason Shouchy mentions and as evidenced by a similar system in use on Youtube as mentioned in this answer: sound.stackexchange.com/a/40648/9881
    – user9881
    Jan 1, 2017 at 14:57

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