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Audio Source - GNU Radio
https://wiki.gnuradio.org/index.php/Audio_Source
This flowgraph takes audio from the audio source, squares it, to get something proportional to the instantaneous power, then low-pass filters it to approximate an averaged-out power, applies a Threshold to it. The latter starts outputting 1s as soon as the smoothed power crosses 10% of the maximum power, and turns back to generating 0s when it ...
audio - GNU Radio: Use sound output as input source ...
https://stackoverflow.com/questions/32213443/gnu-radio-use-sound-output-as-input-source
In gnuradio-companion I'm using the audio source block as my input signal for the next blocks. All works almost fine. The only little problem is that I'm getting the signal from my microphone (this is the normal behavior off course). I would rather like to get the audio signal being played directly without having to go through my speakers, the air from my room and the …
GitHub - gnuradio/gnuradio: GNU Radio – the Free and …
https://github.com/gnuradio/gnuradio
GNU Radio is a free & open-source software development toolkit that provides signal processing blocks to implement software radios. It can be used with readily-available, low-cost external RF hardware to create software-defined radios, or without hardware in a simulation-like environment. It is widely used in hobbyist, academic, and commercial ...
Audio File Transmission using GNU RADIO and USRP
https://academic.csuohio.edu/yuc/mobile/mcproj/8d-Audio%20File%20Transmission%20using%20GNU%20RADIO%20and%20USRP%20.pdf
1. Here our main aim is to transmit some audio file to the destination so we are going to use a file source (here wav file source) and not the USRP. In the Wav file source we have to choose the input file source where we store our audio file. 2. Figure-5 shows the graph for our Wav file before the WBFM block. Figure 5. Original Wav file signal 3.
ALSAPulseAudio - GNU Radio
https://wiki.gnuradio.org/index.php/ALSAPulseAudio
The GNU Radio Audio Sink and Source blocks use ALSA (unless ALSA support was disabled during build time). ALSA has been the standard sound API under Linux for a decade or more, so basically all programs that produce Audio know how to deal with it.
[Discuss-gnuradio] How to specify Audio Source device_name?
https://discuss-gnuradio.gnu.narkive.com/t7qCKNkO/how-to-specify-audio-source-device-name
My problem needs to use an external signal as the Audio Source. GNURadio defaults to using the microphone in the laptop. I added an external USB/audio device to connect the external signal. downloaded ubuntu-14.04.5-desktop-amd64-gnuradio-3.7.10.1.iso and am
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