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Recording audio output | The FreeBSD Forums
https://forums.freebsd.org/threads/recording-audio-output.75819/
I've been on a quest to figure out how to capture audio output for a long time. Apparently OSS doesn't natively support it. Recently I managed to kind of do it using audio/virtual_oss (specifically virtual_oss -C 2 -c 2 -r 48000 -b 16 -s 1024 -f /dev/null -w vdsp -l dsp), but with two inadequacies: . It stops the audio from playing at the same time.
Chapter 15. Sound Subsystem | FreeBSD Documentation …
https://docs.freebsd.org/en/books/arch-handbook/sound/
The FreeBSD sound subsystem cleanly separates generic sound handling issues from device-specific ones. This makes it easier to add support for new hardware. The pcm(4) framework is the central piece of the sound subsystem.
Capturing audio with ffmpeg and ALSA ... - The FreeBSD Forums
https://forums.freebsd.org/threads/capturing-audio-with-ffmpeg-and-alsa-is-pretty-much-straightforward.71148/
Reaction score: 218. Messages: 4,028. Jun 17, 2019. #1. According to https://trac.ffmpeg.org/wiki/Capture/ALSA ..... Capturing audio with ffmpeg and ALSA is pretty much straightforward: Code: ffmpeg -f alsa <input_options> -i <input_device> ... output.wav. Apparently that is all you need...
Chapter 7. Multimedia | FreeBSD Documentation Portal
https://docs.freebsd.org/en/books/handbook/multimedia/
FreeBSD supports a wide variety of sound cards, allowing users to enjoy high fidelity output from a FreeBSD system. This includes the ability to record and play back audio in the MPEG Audio Layer 3 (MP3), Waveform Audio File (WAV), Ogg Vorbis, and other formats. The FreeBSD Ports Collection contains many applications for editing recorded audio, adding sound effects, and …
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