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Multimedia | OpenBSD Handbook
https://www.openbsdhandbook.com/multimedia/#:~:text=Recording%20Audio%20Samples%20aucat%20%281%29%20comes%20with%20OpenBSD,WAV%20format.%20Press%20CTRL%2BC%20to%20finish%20the%20recording.
OpenBSD FAQ: Multimedia
https://www.openbsd.org/faq/faq13.html
Enabling Audio Recording For privacy reasons, audio recording is disabled by default in OpenBSD. The kern.audio.record sysctl may be used to enable it. # sysctl kern.audio.record=1 # echo kern.audio.record=1 >> /etc/sysctl.conf Configuring Audio Hardware Each sound card model has its own set of controls.
Audio recording - Why OpenBSD rocks 🐡
https://why-openbsd.rocks/fact/audio/
For privacy reasons, the OpenBSD team disabled audio recording for all devices by default in the kernel. This can be toggled on/off with a simple sysctl change, without rebooting. sysctl kern.audio.record=1 # enable at runtime echo kern.audio.record=1 >> /etc/sysctl.conf # set at boot Details: OpenBSD 6.4 sysctl(2) - OpenBSD manual pages Audio recording is now disabled …
audio(4) - OpenBSD manual pages
https://man.openbsd.org/audio.4
AUDIO_START Start playback and/or recording immediately. If the device is open for writing (playback), then the play buffer must be filled with the write(2) syscall. The buffer size is obtained by multiplying the nblks, round, and bps parameters obtained with AUDIO_GETPAR. AUDIO_STOP Stop playback and recording immediately.
Multimedia | OpenBSD Handbook
https://www.openbsdhandbook.com/multimedia/
Recording Audio Samples # aucat(1) comes with OpenBSD and can be used for recording. $ aucat -o file.wav The above command will start the recording of a file in WAV format. Press CTRL+C to finish the recording. The file will contain signed 16-bit stereo samples at 48kHz. Other sample formats, sample rates and number of channels can be also be recorded.
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