> Is it even possible to read a file with double values using a GRC > generated script and the gr_file_source block? Or is there something > else I am doing wrong? >
Its a 2 part problem: Unlike gnuradio blocks, in GRC, the data type is checked. So there is no support for double streams. However you could configure the file source to use a byte stream w/ a vlen of 8. That would match the itemsize, but... The other problem is that gnuradio has no blocks that use double streams. Its wasted overhead since floats give all the necessary dynamic range. So nobody invested any effort into it. You may have to add a custom gnuradio block that converts a double stream to a float stream. A set of double to<->from float blocks would be a welcome addition. -Josh _______________________________________________ Discuss-gnuradio mailing list [email protected] http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
