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| -rw-r--r-- | doc/examples/audio-volume-control/README | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/doc/examples/audio-volume-control/README b/doc/examples/audio-volume-control/README new file mode 100644 index 0000000..f3864b7 --- /dev/null +++ b/doc/examples/audio-volume-control/README @@ -0,0 +1,33 @@ +Use-case example. + +Assume you have program that display the audio volume. +This program checks every second third if the volume +have changed. + +Also assume that you use amixer to change the volume, +most often by using keybindings via xbindkeys. + +To reduce the delay, you want to send a signal to the +monitor program that the volume have changed. For this +more primitive IPC is sufficient, but lets assume there +are other programs interested in this information too. + +To accomplish this, you create a wrapper for amixer +than broadcasts updates on a bus. This wrapper is +installed as ~/.local/bin/amixer, and ~/.local/bin/ +is included in $PATH before /usr/bin. + + + +Before starting run ~/.init, this code is +should be run from your profile file if you +want to implement this on your system. + +After running ~/.init, you can start one +or more listeners by running ~/.alsa-monitor. + +To change the volume run +`./amixer -c 0 -- set Master 5%+` or similar. + +When you are done run ~/.cleanup + |