first of all thanks to all the guys who provided very useful tips for the the HD+File system setup.
I finally have a 7200rpm disk that does keep up very well with 32MBps and, I guess, even much more.. is then this assumption correct? 8Msps with gr_complex data type ==> 8e6*8bytes per sample = 64 MB/s 8Msps with interleaved shorts ==> 8e6*2bytes per int * 2channels = 32 MB/s I'm sure now that my drive can keep up with recording and replaying the 32 MB/s and I guess that even 64 with my new, xfs formatted clean disk is fine my problem is that in both cases ( both using complex and interleaved shorts) If I work with a 4 MHz bandwidth everything looks allright. I can record and replay a 4 MHz fm band and perfectly listen to the station at the center of it when sending it back to the receiver but when I try to go 8 MHz I can hear a noisy, extremely weak replica of my signal, which is SLOW... like an old cassette player with flat batteries and this is consistent with the fact that a file meant to last 10.717 secs @ 32MB/s, when played with usrp_interp= 16 (8MHz Bandwidth) lasts MORE than 13 secs, while if played with usrp_interp=32 (4MHz), it lasts exactly the double of the correct value ie: 10.717*2=21.434 has this ever happened to anybody.. am I making huge mistakes that I havent discovered yet? thanks vincenzo _______________________________________________ Discuss-gnuradio mailing list [email protected] http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
