libASPL
airspy-fmradion
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| libASPL | airspy-fmradion | |
|---|---|---|
| 3 | 4 | |
| 48 | 132 | |
| - | - | |
| 5.9 | 9.1 | |
| 2 months ago | 5 days ago | |
| C++ | C++ | |
| MIT License | GNU General Public License v3.0 only |
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libASPL
airspy-fmradion
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Listen to HD radio with a $30 RTL SDR dongle
I have a little hobby project where I record an FM radio music station using a SDR and then remove all the non-music portions for offline listening. I like the music selections the DJs pick, but I prefer not to listen to the DJ commentary and the advertisements.
I evaluated three methods of recording: analog capture from a standalone FM receiver, using this nrsc5 library to record the "HD" radio stream, and using an AirSpy SDR with this library: https://github.com/jj1bdx/airspy-fmradion
Recording the "HD" (what a misnomer) radio was nice in that there was no hiss or multipath effects, but in comparison to the other methods the digital compression artifacts became impossible to un-hear. It seems to top out at about 96 kbps
The airspy-fmradion library has some nice stuff in it to address multipath, resulting in the best audio quality of the three methods I tested.
I use https://github.com/ina-foss/inaSpeechSegmenter to identify which segments of the recordings are speech vs. music.
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How to receive and record fm radio in stereo on the command line
Alternatively, use airspy-fmradion:
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Ubuntu 20.04 SDR FM retransmit to a single user
You might want to look into using https://github.com/jj1bdx/airspy-fmradion instead of rtl_fm for stereo.
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FM stereo decoder? (Linux, command line)
You can use https://github.com/windytan/wfm-tools together with rtl_fm to get stereo, though I prefer https://github.com/jj1bdx/airspy-fmradion
What are some alternatives?
BackgroundMusic - Background Music, a macOS audio utility: automatically pause your music, set individual apps' volumes and record system audio.
AIS-catcher - AIS receiver for RTL SDR dongles, Airspy R2, Airspy Mini, Airspy HF+, HackRF, SDRplay and SoapySDR
giada - Your Hardcore Loop Machine.
openwebrx - Open source, multi-user SDR receiver software with a web interface
Mumble - Mumble is an open-source, low-latency, high quality voice chat software.
luaradio - A lightweight, embeddable software-defined radio framework built on LuaJIT
SoundPusher - Virtual audio device, real-time encoder and SPDIF forwarder for macOS
sample-icecast-noaa - A sample docker setup for streaming NOAA radio from a USB RTL-SDR dongle to Icecast, so you can listen tp it as an m3u stream.
ezstream - [Mirror] A streaming source client for Icecast
wfm-tools - Some DSP tools for FM demodulation
gnss-sdr - GNSS-SDR, an open-source software-defined GNSS receiver
SatDump - A generic satellite data processing software.