On Tue, Jun 8, 2010 at 2:59 PM, Brad Buran <bbu...@cns.nyu.edu> wrote: > In our research lab we generate a variety of audio signals to study > auditory perception. These signals include pure tones (ramped on/off > by cosine squared envelopes), amplitude-modulated noise, sequences of > signals (noise followed by a tone, etc.), band-limited noise, etc. > > Once we generate the waveform, we upload it to an external hardware > device that plays the signal out to a speaker. > > GNU radio seems like a very interesting project because it looks like > it can generate a continuous waveform as a series of frames which we > could then upload to the external device. If I understand GNU radio > correctly, this would allow us to fine-tune the output signal in > real-time (e.g. adjust modulation frequency, etc) and the next frame > would have the updated signal (rather than having to recompute the > entire waveform). > > Does this sound like a reasonable use case for GNU radio? Would we be > able to grab the output of the block "chain" and upload it to the > hardware ourselves? It looks like using a vector sink may work for > that purpose. > > Thanks, > Brad Buran > Postdoctoral Fellow > Center for Neural Science > New York University
Brad, Yes, GNU Radio should work well for your purposes. The vector_sink would work, but that's usually not recommended for full-blown applications; we usually use it for testing. You could generate the signal and save it to a file, then replay the file through your hardware. There are other solutions we could discuss, too, that could allow you to talk directly to your hardware. Tom _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
