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airspy-fmradion reviews and mentions
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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
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A note from our sponsor - WorkOS
workos.com | 27 Apr 2024
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jj1bdx/airspy-fmradion is an open source project licensed under GNU General Public License v3.0 only which is an OSI approved license.
The primary programming language of airspy-fmradion is C++.
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