Hot answers tagged forensics
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The main challenge with digital audio is that it is difficult to tell if it has been edited or spliced together since there are no generations of loss. A lossy format such as MP3 would further complicate this as it would make any minor issues with cutting things together more difficult to distinguish. It should be easy enough to identify the speaker, but ...
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An MP3 file is a very poor source for any kind of analysis. This is because MP3 files involve lossy compression, and the degree of compression can vary depending on how the file was encoded. The lossy compression process removes content that the human ear-brain system doesn't notice, but some of that information may be relevant for the type of forensics you ...
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When data is in digital format they can be manipulated in any way you want, so the initial data would not be certain in any way.
Videos on mobile phones is a fairly recent thing, however video over phone is nothing new and the first video capable phones are based on codecs back from the 80's. Only the later years you will see phones with more modern video ...
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