Nope! That's a common misconception! The file sink just writes the bits as they come in. Whether, for example, a 64 bit item is actually a complex number consisting of two 32 bit IEEE754 floats, or a double, or two 32 bit integers, or one 64bit integers, or just a vector of 8 Bytes of data (chars) is really of no difference to the sink.
On Thu, 2018-04-19 at 20:04 +0000, Patrick Sathyanathan wrote: > Hi Ivo, > > The binary format depends on what you have set as the "Input Type" in the > file sink. The default is "Complex" in which case the values are 32-bit float > I followed by 32-bit float Q. The order of the 4-bytes in the float likely > depends on the endianness of your host system. > > --Patrick > From: Discuss-gnuradio <[email protected]> > on behalf of rear1019 <[email protected]> > Sent: Wednesday, April 18, 2018 9:58 PM > To: [email protected] > Subject: Re: [Discuss-gnuradio] Read FM signal > > On Tue, 17 Apr 2018 at 14:32:17 -0300, Ivo Carlson wrote: > > […] > > The file sink saves the data in a binary format, but I don't know what > > this data represents. How do I interpret this data? What does this data > > represent? > > This question can not be answered as we don’t know how your flowgraph > looks like. Provide your flowgraph (.grc file) or a screenshot (open the > flowgraph in GNU Radio Companion, go to File menu and select “Screen > Capture”). > > _______________________________________________ > Discuss-gnuradio mailing list > [email protected] > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > _______________________________________________ > Discuss-gnuradio mailing list > [email protected] > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
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