tAdd note on OpenBSD audio recording - adamsgaard.dk - my academic webpage | |
git clone git://src.adamsgaard.dk/adamsgaard.dk | |
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--- | |
commit 390238d28112dccbd4fc829933bcdfd566f49973 | |
parent ceb06a4b54b6767490751d3050f7d1834ca4ba1d | |
Author: Anders Damsgaard <[email protected]> | |
Date: Tue, 24 Mar 2020 19:18:59 +0100 | |
Add note on OpenBSD audio recording | |
Diffstat: | |
M pages/004-screencasts.html | 13 ++++++++++--- | |
M pages/004-screencasts.txt | 12 +++++++++--- | |
2 files changed, 19 insertions(+), 6 deletions(-) | |
--- | |
diff --git a/pages/004-screencasts.html b/pages/004-screencasts.html | |
t@@ -54,10 +54,17 @@ else | |
fi | |
</code></pre> | |
+<p>I have bound the above script to the key binding Alt+r which | |
+makes it easy to start and stop recording in my X session.</p> | |
+ | |
<p>On Linux systems, the sound driver <b>sndio</b> should be replaced | |
-by <b>alsa</b> in the above ffmpeg(1) command. I have bound the | |
-above script to the key binding Alt+r which makes it easy to start | |
-and stop recording in my X session.</p> | |
+by <b>alsa</b> in the above ffmpeg(1) command. Audio recording is | |
+disabled by default on OpenBSD, but can be permanently enabled with | |
+the following commands:</p> | |
+ | |
+<pre><code># sysctl kern.audio.record=1 | |
+# echo kern.audio.record=1 >> /etc/sysctl.conf | |
+</code></pre> | |
<p>On OpenBSD I can show the webcam video feed with the <a | |
href="https://man.openbsd.org/man1/video.1">video(1)</a> command. | |
diff --git a/pages/004-screencasts.txt b/pages/004-screencasts.txt | |
t@@ -52,10 +52,16 @@ script serves the purpose of starting and stopping recordi… | |
startrecording | |
fi | |
+I have bound the above script to the key binding Alt+r which makes | |
+it easy to start and stop recording in my X session. | |
+ | |
On Linux systems, the sound driver sndio should be replaced by alsa | |
-in the above ffmpeg(1) command. I have bound the above script to | |
-the key binding Alt+r which makes it easy to start and stop recording | |
-in my X session. | |
+in the above ffmpeg(1) command. Audio recording is disabled by | |
+default on OpenBSD, but can be permanently enabled with the following | |
+commands: | |
+ | |
+ # sysctl kern.audio.record=1 | |
+ # echo kern.audio.record=1 >> /etc/sysctl.conf | |
On OpenBSD I can show the webcam video feed with the [2]video(1) | |
command. The following script toggles the video feed: |