On 03/04/2013 03:07 PM, mepard wrote: > > On Mar 4, 2013, at 2:43 PM, Josh Blum <j...@ettus.com> wrote: >> >> On 03/04/2013 02:36 PM, mepard wrote: >>> I'd like to feed a File Sink from a UHD Source with 4 channels -- 2 >>> motherboards, each with A:A A:B subdev specs. To cut down on the file >>> size, I'd like to record integers instead of floating point. >>> >>> Which data type should I tell the UHD source to produce? Which type >>> should I tell the File Sink to record? What conversions do I need in >>> between? I'd like to stay in GRC, if possible. >>> >> >> Sure thing. You can set the file sink to integer (int32), and either set >> the usrp source block to vita word32 or sc16 type (both are 32 bits per >> sample). >> >> Thats still 4 streams, not sure if you are interleaving them or using 4 >> file sinks. >> > > One thing I forgot is that I'd like to convert complex<sint16> to a single > sint16 with just the "real" part, like I can convert complex<float> to single > float. It doesn't look like there is the equivalent of Complex To Real for > integers. > > Is there an alternative to converting to floating point and back?
you could vector to streams, and null sink the second stream. * 1 input stream of vec length 2 and item size short * 2 output streams of item size short -josh > > -Marc > _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
