Re: [Discuss-gnuradio] No audio on os x reading .dat files

2006-08-17 Thread Jan Schiefer
I just tried this with rev 3340 on an Intel Mac, and I hear the guy talking. This would confirm the endianness theory. Cheers, Jan Eric Blossom wrote: On Tue, Aug 15, 2006 at 05:52:50PM +0200, Josh Jennings wrote: Hi Michael, Having thought about this a little more, I don't think this p

Re: [Discuss-gnuradio] translating the signal from baseband to RF

2006-08-17 Thread Michael Ford
I'll be able to borrow a spectrum analyzer next week, I just found out. In the meantime, I know you pointed out that fsk_{rx,tx).py are outdated. My followup question is - are every one of the individual signal processing blocks obsolete as well? (simple_correlator, bytes_to_syms, file_source, etc.

Re: [Discuss-gnuradio] No audio on os x reading .dat files

2006-08-17 Thread Michael Dickens
Jan - Thanks for adding weight to the "endianness" theory. Back again to the previous question: Does the .dat file format somehow internally specify the data endianness? If so, then it would seem simple to write a block to handle this. If not, not so simple. - MLD On Aug 17, 2006, at 12:

Re: [Discuss-gnuradio] No audio on os x reading .dat files

2006-08-17 Thread Eric Blossom
On Thu, Aug 17, 2006 at 03:36:41PM -0400, Michael Dickens wrote: > Jan - Thanks for adding weight to the "endianness" theory. Back > again to the previous question: Does the .dat file format somehow > internally specify the data endianness? If so, then it would seem > simple to write a bloc

Re: [Discuss-gnuradio] No audio on os x reading .dat files

2006-08-17 Thread Josh Jennings
Hi everyone, The little endian/big endian theory is definitely the problem, since I converted the dat file on my linux to big endian and it then played as expected on my ibook. It is a rather simple c swap float code that compiles good on my linux. Unfortunately, when I tried to compile my linux c

Re: [Discuss-gnuradio] No audio on os x reading .dat files

2006-08-17 Thread John Clark
Josh Jennings schrieb: As far as I know, one would need to make an endian sniffer which would either read a header in the file or decide on its own how to read/convert the file. No just add 'intelToHost_XX()' or 'HostToIntel' functions for reading data, or writing data. Then a host sensitive

[Discuss-gnuradio] Emulab & GNU Radio

2006-08-17 Thread Brent Horine
Eric, you mentioned that GNU Radio and USRPs are setup on the Utah emulab system and that we could get access to them. I'm researching link establishment and maintenance in cognitive radios with dynamic spectrum access and considering the use of GNU Radio as a test platform. Can you enlighten u

Re: [Discuss-gnuradio] Emulab & GNU Radio

2006-08-17 Thread Eric Blossom
On Thu, Aug 17, 2006 at 09:43:55PM -0400, Brent Horine wrote: > Eric, you mentioned that GNU Radio and USRPs are setup on the Utah emulab > system and that we could get access to them. I'm researching link > establishment and maintenance in cognitive radios with dynamic spectrum > access and consi