Re: [Discuss-gnuradio] Using USRP to transmit and receive samples

2013-10-19 Thread Marcus Müller
Hi! Quick answer, don't have time right now: (A) Why did you save them as wav audio? Usually, it's wiser to just store them as raw data; see the scripts in gnuradio-core/src/utils/{read,write}* Note: you're sending symbols from the source, not samples! Use bytes as data format. Answers: (1) ye

Re: [Discuss-gnuradio] zero ninput_items_required[0]

2013-10-19 Thread Marcus Müller
Hi Nemanja, Considering following flowgraph, assume your block is A, and assume all blocks work with the same itemsize. good question, but basically, when running, when A is done with a run of work, it's thread notifies blocks "upstream" (B in

[Discuss-gnuradio] Complex to bits

2013-10-19 Thread Gui Ritter
Hi everyone. Thanks for all the replies on my previous thread. I did some tests and found out that the FFT and IFFT do not add noise to my audio signal. It works perfectly! The noise is coming from another part of my flowgraph. Before I introduced the FFT and IFFT, I was working with an audio sig

[Discuss-gnuradio] Complex to bits

2013-10-19 Thread Gui Ritter
I just realized that float to bits is also acceptable, as long as the samples don't lose precision. I didn't tacked this by scaling the samples then converting to int because I don't know what is the range of values for the outputs of the FFT and IFFT blocks. From: gui--rit...@hotmail.com To: d

Re: [Discuss-gnuradio] How to make modified uhd/host/examples

2013-10-19 Thread Naceur
Thank you Bennett. -- View this message in context: http://gnuradio.4.n7.nabble.com/How-to-make-modified-uhd-host-examples-tp44214p44248.html Sent from the GnuRadio mailing list archive at Nabble.com. ___ Discuss-gnuradio mailing list Discuss-gnuradi

Re: [Discuss-gnuradio] Using USRP to transmit and receive samples

2013-10-19 Thread JPL
Sorry my bad, it's typo. I actually did save *.wav into *.dat. and good to hear about that "it will work" One question, *the scripts in gnuradio-core/src/utils/{read,write}* If I use those scripts in the matlab, I will not need to worry about setting the format, like float, int, or byte...etc, ri