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| author | Sacha Chua <sacha@sachachua.com> | 2021-11-23 20:14:03 -0500 |
|---|---|---|
| committer | Sacha Chua <sacha@sachachua.com> | 2021-11-23 20:14:03 -0500 |
| commit | 6aa1ff1ec4d3c066d5a3933966f3d29f81e6601f (patch) | |
| tree | 3a51e00b416f497035584de4efb9323093774eff /playbook.org | |
| parent | 1df6dc874b2375536fdeddfeecee6c8b216f23c5 (diff) | |
| download | emacsconf-wiki-6aa1ff1ec4d3c066d5a3933966f3d29f81e6601f.tar.xz emacsconf-wiki-6aa1ff1ec4d3c066d5a3933966f3d29f81e6601f.zip | |
Add notes on ALSA
Diffstat (limited to 'playbook.org')
| -rw-r--r-- | playbook.org | 29 |
1 files changed, 28 insertions, 1 deletions
diff --git a/playbook.org b/playbook.org index 4f99f066..80e3bbf9 100644 --- a/playbook.org +++ b/playbook.org @@ -479,4 +479,31 @@ Exceptions: - Try to record name pronunciation - Encourage webcam for Q&A, although make it clear that it's totally optional - Possible picture-in-picture approach to maximize screen real estate - +** Experiment with setup to allow MPV / BBB sound isolation + +Set MIC and OUTPUT appropriately. + +#+begin_src sh :eval no +MIC=alsa_input.usb-046d_0819_A68D6BE0-02.mono-fallback +OUTPUT=alsa_output.pci-0000_00_1b.0.analog-stereo +if [ "$1" == "-u" ]; then + pactl unload-module module-loopback + pactl unload-module module-null-sink +else + pacmd load-module module-null-sink sink_name=recording sink_properties=device.description=recording channels=2 + pacmd load-module module-null-sink sink_name=mpv sink_properties=device.description=mpv + pacmd load-module module-loopback source=$MIC sink=recording + pacmd load-module module-loopback source=mpv.monitor sink=recording + pacmd load-module module-loopback source=recording.monitor sink=$OUTPUT +fi +#+end_src + +You can probably then use =pavucontrol= (choose All Streams instead of +Applications on the Playback tab) or something like the following to +redirect the mpv output to the mpv sink. + +#+begin_src sh :eval no +pacmd list-sink-inputs # notice the +pacmd move-sink-input 1 mpv +#+end_src + |