inaSpeechSegmenter
RTLSDR-Airband
inaSpeechSegmenter | RTLSDR-Airband | |
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3 | 21 | |
695 | 710 | |
1.3% | - | |
6.4 | 7.0 | |
about 2 months ago | about 1 month ago | |
Python | C++ | |
MIT License | GNU General Public License v3.0 only |
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inaSpeechSegmenter
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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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(Unpopular?) opinion: KEXP’s John Richards is annoying AF
One key library that makes it possible is this one: https://github.com/ina-foss/inaSpeechSegmenter
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ytmdl Web - A webapp that lets you download music by getting the audio from YouTube and metadata from various sources like Itunes, Last.FM, Gaana and others. v2 released with lots of fixes.
After looking for a few options, I came across inaSpeechSegmenter. It is a speech segmenter and if you pass it an audio file, it returns the time segments of noises and music.
RTLSDR-Airband
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Listen to HD radio with a $30 RTL SDR dongle
You're all correct, except there are not that many $30 SDRs out there. Also, most SDRs have clearly superior capabilities to the RTL-SDR, though those capabilities often are not required.
BTW, for simple AM/FM demodulation I cannot recommend enough the handy https://github.com/charlie-foxtrot/RTLSDR-Airband. For example most of LiveATC.net feeds run on it.
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Automatic recording app for Linux?
rtlsdr_airband, but again requires knowing the frequencies of interest ahead of time.
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I'm back into it 2 years later
You may want to give RTLSDR-Airband a look. Its designed for analog AM/NFM voice traffic and can be configured to operate on any frequency your rtlsdr dongle can handle. It can also be configured to output to an mp3 file, in addition to other things like IceCast.
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Raspberry Pi RTL_Airband
There’s an example service config file in the repo: https://github.com/charlie-foxtrot/RTLSDR-Airband/blob/main/init.d/rtl_airband.service
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Streaming audio from local UDP source
I have been streaming the output from RTLSDR-Airband (https://github.com/charlie-foxtrot/RTLSDR-Airband) with icecast2 for several (5?) Years now, and I have some time and inclination to look at reducing latency (currently best is 10s, but often much more.)
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Airband receiver
https://github.com/szpajder/RTLSDR-Airband Might be what you are looking for, although I don't know the performance requirements. It has a scan mode detailed here: https://github.com/szpajder/RTLSDR-Airband/wiki/Configuring-channels-for-scan-mode
- What software would I need to use to listen to airband? (mac or linux)
- Help\ideas for base station, some guidance needed
- timestampSDR
- Looking for (working) RF-Monitor
What are some alternatives?
pyannote-audio - Neural building blocks for speaker diarization: speech activity detection, speaker change detection, overlapped speech detection, speaker embedding
openwebrx - Open source, multi-user SDR receiver software with a web interface
madmom - Python audio and music signal processing library
sdrangel - SDR Rx/Tx software for Airspy, Airspy HF+, BladeRF, HackRF, LimeSDR, PlutoSDR, RTL-SDR, SDRplay RSP1 and FunCube
GuitarTuner - Guitar tuner program made with Python, Tkinter and PyAudio.
dumphfdl - Multichannel HFDL decoder
ytmdl - A simple app to get songs from YouTube in mp3 format with artist name, album name etc from sources like iTunes, Spotify, LastFM, Deezer, Gaana etc.
rtl_433 - Program to decode radio transmissions from devices on the ISM bands (and other frequencies)
ffsubsync - Automagically synchronize subtitles with video.
AIS-catcher - AIS receiver for RTL SDR dongles, Airspy R2, Airspy Mini, Airspy HF+, HackRF, SDRplay and SoapySDR
subaligner - Automatically synchronize and translate subtitles, or create new ones by transcribing, using pre-trained DNNs, Forced Alignments and Transformers. https://subaligner.readthedocs.io/
wmbusmeters - Read the wired or wireless mbus protocol to acquire utility meter readings.