On Fri, Sep 23, 2016 at 4:02 PM, <du...@duaneellis.com> wrote: > > Can you suggest a tool that I can use to "slice out" - the sections > of interest?
I'm not sure about 750MB files but in general if you are just trying to identify high signal power and slice that out, audio file editing tools that allow reading "raw" data (such as Audacity) can be used for this task. Set the numeric format (e.g for a regular GNU Radio complex output, float, little endian, 2 channels), ignore the sample rate, and just look at the waveforms to slice out the parts you want. What they won't typically do is give you a spectrogram view if you need to identify the signal of interest by frequency as well as power. There is also support in GNU Radio for recording signal bursts (the 'Burst Tagger' block and something else), which of course could also be used on already-captured data, but I'm not familiar with how to use it myself.
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