Re: [Discuss-gnuradio] Question about GNURADIO File sink

[Marcus Müller]

Dear Pablo,

I'd seriously consider implementing your signal processing in GNU Radio
rather than Matlab; GNU Radio's main purpose is to do live signal
processing, whereas Matlab is much better suited for offline analysis
and the such. It feels like a bit of a waste to use GNU Radio only for
recording!

Generally, there's nothing stopping you from reading only parts of a
File or Named Pipe directly with Matlab, anyway.
So, to be honest, I think you might be solving a problem that you don't
really have – "just" write Matlab code that repeatedly reads only as
many bytes as available from a file descriptor.

Best regards,
Marcus

On 11/02/2016 03:21 PM, adrianapa wrote:
> Thank you all for your answers, I appreciate it.
>
> I want to record IQ samples in real time in different files (for example
> 100MB). I am using hardware HackRF One. With software SDR-RADIO v2 is easy
> to do, but now I want to try this in software GNU RADIO.
> My goal is record in diferents files because I want to record without
> interrupt and in second plane I want to process this files with MATLAB in
> real time.
> I have implemented this with SDR-RADIO, each 13s I have a file with 100MB
> and MATLAB wait to have two files ahead to process them, for example:
>
> SDR RADIO (RECORD)     MATLAB (PROCESS)
> file0.wav                             waiting
> file1.wav                             waiting
> file2.wav                             process file0.wav
> file3.wav                             process file1.wav
> file4.wav                             process file2.wav
> ...
> ...
>
>
> I am trying to do this in GNU Radio with tagged File sink but still doesn't
> work, I have not managed to record any file. I think I'm not understanding
> this block. In what path recorded files are saved with Tagged File Sink? Any
> help is welcome, thanks for your support.
>
>
> Best regards,
>
> Pablo
>
>
>
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