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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.
Audio Sink - GNU Radio
https://wiki.gnuradio.org/index.php/Audio_Sink
The audio sink can have multiple inputs depending upon your hardware. For example, set the inputs to 2 for stereo or 1 for mono. Example Flowgraph . This flowgraph should play a 1 kHz tone out of your speakers. Note that you don't need a throttle block, the Audio Sink should throttle for you.
GitHub - bitglue/gr-pulseaudio: Audio source and sink ...
https://github.com/bitglue/gr-pulseaudio
Audio source and sink blocks for GNU Radio using PulseAudio. Current status: works, but needs review from experienced GNU Radio and PulseAudio developers. GQRX also appears to have PulseAudio sources and sinks , though they do need seem to be structured with the intent of for standalone use.
Choppy sound with GNU Radio and PulseAudio - Fun With ...
https://www.funwithelectronics.com/?id=167
Choppy sound with GNU Radio and PulseAudio If you get choppy sound when using pulseaudio with GNU radio it might help to create a file ~/.gnuradio/config.conf (if it does not already exist) and add the following: [audio_alsa] nperiods = 16 nperiods should be increased even more if the sound still remains choppy.
Re: WSJT-X and Gnuradio audio, usrp sink underflows
https://lists.gnu.org/archive/html/discuss-gnuradio/2022-01/msg00003.html
Pulseaudio provides sink/source output routing and can seamlessly resample between audio rates. The snd_aloop module once enabled will appear as a second virtual sound card. Even GNU radio's audio sinks and sources can use Pulseaudio instead of Alsa directly.
GitHub - duk3luk3/gr-audiopatch: Gnu Radio Mixpanel
https://github.com/duk3luk3/gr-audiopatch
Use Gnu Radio audio sinks to create audio pass-through and monitoring How to run Install Gnu Radio and Gnu Radio Companion Install pipewire Copy 50-pipewire-aliases.conf to /etc/alsa/conf.d/50-pipewire-aliases.conf Run audiomix.py or open audiomix.grc in Gnu Radio Companion and run Use pavucontrol to assign the right devices
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