https://github.com/dim13/spectrogram
OpenBSD sndio Spectrogram
https://github.com/dim13/spectrogram
c fftw openbsd sound spectrogram visualization waterfall
Last synced: 3 months ago
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OpenBSD sndio Spectrogram
- Host: GitHub
- URL: https://github.com/dim13/spectrogram
- Owner: dim13
- License: isc
- Created: 2014-04-07T20:47:35.000Z (over 11 years ago)
- Default Branch: master
- Last Pushed: 2025-01-07T22:42:22.000Z (9 months ago)
- Last Synced: 2025-04-15T02:41:06.692Z (6 months ago)
- Topics: c, fftw, openbsd, sound, spectrogram, visualization, waterfall
- Language: C
- Homepage: https://www.dim13.org/Spectrogram
- Size: 580 KB
- Stars: 16
- Watchers: 5
- Forks: 4
- Open Issues: 1
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
# Spectrogram
Visualisation hack for OpenBSD (sndio) and Linux (alsa) playback.
## OpenBSD
Install required packages:
```
pkg_add fftw3
```
Build:
```
make -f Makefile.bsd-wrapper
```
`sndiod` must be started in monitoring mode (see the [Multimedia: Recording a Monitor Mix of All Audio Playback](https://www.openbsd.org/faq/faq13.html#recordmon) section of the FAQ:)
```
rcctl set sndiod flags -s default -m play,mon -s mon
rcctl restart sndiod
```
## Linux
Build packages: `sudo apt install libfftw3-dev libasound2-dev libx11-dev`
Audo loopback device: `sudo modprobe snd-aloop`