librtlsdr
airspy-fmradion
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| librtlsdr | airspy-fmradion | |
|---|---|---|
| 29 | 4 | |
| 281 | 132 | |
| 1.4% | - | |
| 5.4 | 9.1 | |
| 29 days ago | 4 days ago | |
| C | C++ | |
| GNU General Public License v3.0 only | GNU General Public License v3.0 only |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
librtlsdr
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Radically different noise levels of different software and other noise reductions
Download the https://github.com/rtlsdrblog/rtl-sdr-blog or https://github.com/librtlsdr/librtlsdr version instead. Even try both, since there may be differences.
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rtl_tcp for HF frequencies?
Give https://github.com/librtlsdr/librtlsdr a try?
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Running rtl_power?
I should have mentioned, I'm using this fork of the librtlsdr library, which contains a slightly different version of rtl_power with some extra features, and apparently the "-D" option is treated differently in the version I'm using. The forked version allows you to set a specific branch using the "-D" option, as described below:
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RTL SDR linux driver with full control.
There are a few variations of librtlsdr, f.e. this fork; https://github.com/librtlsdr/librtlsdr which adds features that aren't available in the version used in most Linux distributions. This adds some extra features and output that are really useful (most notably, regular output of max, min, mean power levels and noise floor). It also has some extra functions to fine tune signals.
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Listen to DMR for free
Linux, librtlsdr and this port of DSD. FWIW, this port of DSD is newer and also has a Windows binary.
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WBFM and nrsc5 using lightweight tools
Next I moved onto try feeding the output of rtl_sdr (from https://github.com/librtlsdr/librtlsdr) to nrsc5 and that worked well!
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How to receive and record fm radio in stereo on the command line
You have an older librtlsdr; I'm using the GitHub version, which adds extra features; https://github.com/librtlsdr/librtlsdr
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'rtlsdr_set_bias_tee' not found
Thank you for your reply, I have tried it with the 'static' from the official GitHub https://github.com/librtlsdr/librtlsdr/releases , but the error remains? Do you mean an even newer version?
- command line tool to search for local FM stations?
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would I get worse performance by buying this nooelec clone instead of the real thing? the real thing is 10 bucks pricier and it also comes with a remote which i don't see myself using. https://www.amazon.de/-/en/RTL-SDR-Receiver-Antenna-RTL2832U-Software-blue/dp/B094ZJ3VVN/
github.com/librtlsdr/librtlsdr may be worthy to check out.
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?
rtl-sdr - library for turning a RTL2832 based DVB dongle into a Software DefinedReceiver; mirror from https://gitea.osmocom.org/sdr/rtl-sdr
AIS-catcher - AIS receiver for RTL SDR dongles, Airspy R2, Airspy Mini, Airspy HF+, HackRF, SDRplay and SoapySDR
gcc_termux - Gcc for termux with fortran scipy etc... Use apt for newest updates instructions in README.txt
openwebrx - Open source, multi-user SDR receiver software with a web interface
multimon-ng
luaradio - A lightweight, embeddable software-defined radio framework built on LuaJIT
gqrx-scan
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.
rtl-power-fftw - Power spectrum for RTLSDR dongles.
ezstream - [Mirror] A streaming source client for Icecast
noaa-apt - NOAA APT weather satellite image decoder, for Linux, Windows, RPi 2+, OSX and Android+Termux
wfm-tools - Some DSP tools for FM demodulation