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4 results tagged spectrogram  ✕   ✕
rimio/specgram https://github.com/rimio/specgram
Fri 27 Jan 2023 10:33:09 PM PST archive.org

Small program that computes and plots spectrograms, either in a live window or to disk, with support for stdin input. In theory, you can run any data through it and generate a spectrogram. Read the manpage.

In the AUR (but you want specgram-git because specgram has a bug and won't compile!)

cli tool visualization analysis spectrogram cpp
GitHub - aaronzlim/rtlsdr-speca https://github.com/aaronzlim/rtlsdr-speca
Sat 02 Jan 2021 06:59:00 PM PST archive.org

RTL-SDR based spectrum analyzer.

python rtlsdr rf signals spectrogram
GitHub - 0xCoto/CygnusRFI: 📡 CygnusRFI: An open-source RFI analysis tool for Ground Stations & Radio Telescopes https://github.com/0xCoto/CygnusRFI
Mon 02 Nov 2020 03:22:50 PM PST archive.org

CygnusRFI is an easy-to-use open-source Radio Frequency Interference (RFI) analysis tool, based on Python and GNU Radio Companion (GRC) that is conveniently applicable to any ground station/radio telescope working with a GRC-supported software-defined radio (SDR). In addition to data acquisition, CygnusRFI also carries out automated analysis of the recorded data, producing a series of averaged spectra covering a wide range of frequencies of interest. CygnusRFI is built for ground station operators, radio astronomers, amateur radio operators and anyone who wishes to get an idea of how "radio-quiet" their environment is, using inexpensive instruments like SDRs.

The CLI tool is used to set up scanning runs. Data is graphed as output.

rfi rtlsdr python rf analysis spectrogram astronomy cli graphs
alexadam/img-encode: Encode an image to sound https://github.com/alexadam/img-encode
Fri 15 Jun 2018 11:05:36 AM PDT archive.org

Software that takes an image and encodes it as sound. If you look at the spectrogram, you can see the image again. Remember that Aphex Twin album? That. The encoder is Javascript, open the page in your browser. Open result.wav with a spectrogram utility (like Sonic Visualiser) and you can see the image.

software javascript web spectrogram images encoder
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