Play sound in Domoticz (Linux/Ubuntu)

[rudder66]

Hi all!

I want to play event sounds in Domoticz on a Linux Mint server.
It is important for me to be able to adjust the hardware volume for playing sounds for each event.
Sound card integrated.

I used several utilities:
aplay - only wav plays and there is no way to set the volume.

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#!/bin/bash
aplay /home/rudder/audio/on.mp3 > /dev/null 2>&1 &
exit 0

mpg321 - works through the terminal, but does not work through running a script in Domoticz. I did not understand the reason.

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#!/bin/bash
mpg321 -g 80 /home/rudder/audio/on.mp3 > /dev/null 2>&1 &
exit 0

mplayer - plays most formats, software volume control. After reboot, everything reset.

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#!/bin/bash
mplayer -volume 80 /home/rudder/audio/on.mp3 > /dev/null 2>&1 &
exit 0

The hardware volume control works through the utility:

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pactl set-sink-volume 0 80%

but the script does not work in Domoticz - the volume does not change. Via the terminal works fine.

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#!/bin/bash
pactl set-sink-volume 0 80%
mplayer /home/rudder/audio/on.mp3 > /dev/null 2>&1 &
exit 0

Why?
What am I doing wrong?
Thk

[waaren]

but the script does not work in Domoticz - the volume does not change. Via the terminal works fine.
Why?
What am I doing wrong?

In many similar issues it turned out that the executing user (the process owner of domoticz) was not the same (or did not use the same environment) as the one that was used to test it on the CLI level.
What helped in those circumstances was to use full qualified pathnames, use sudo or specify what shell or python version need to be used.
(or a combination of them)

[rudder66]

I use absolute full paths.

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	script:///home/rudder/audio/playmp3.sh

The Domoticz service is started as a daemon with the root user.

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1129 root      20   0 1070232  47860  16900 S   0,7  1,7   0:12.93 domoticz  

All bash scripts have root owner.
All scripts have 777 permission.

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-rwxrwxrwx 1 root   root      161 янв  8 02:12 playmp3.sh

To be more precise, from this script, only one command does not work in Domoticz:

Code: Select all

pactl -- set-sink-volume 0 80%

Command 'mplayer -volume 100 /home/rudder/audio/on.mp3 > /dev/null 2>&1 &' works in the same script!
Even if I leave only one 'pactl -- set-sink-volume 0 80%' command, then it does not work in Domoticz.

[waaren]

ITo be more precise, from this script, only one command does not work in Domoticz:

Code: Select all

pactl -- set-sink-volume 0 80%

Did you try

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/usr/bin/pactl -- set-sink-volume 0 80%

?

[rudder66]

No, it does not work, I tried.
I do not know why but pactl does not work in Domoticz.
As a solution: I created a dummy volume selector and use separate volume control. It works!

Example for 70%

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#!/bin/bash
amixer set Master 100% > /dev/null 2>&1 &
amixer set PCM 70% > /dev/null 2>&1 &
amixer set Speaker 100% > /dev/null 2>&1 &
exit 0

Next, I use one of the utilities without the volume key:
for MP3

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#!/bin/bash
mplayer /home/rudder/audio/on.mp3 > /dev/null 2>&1 &
exit 0

for WAV

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#!/bin/bash
aplay /home/rudder/audio/police.wav > /dev/null 2>&1 &
exit 0

So I got what I wanted.

[waaren]

...So I got what I wanted.

Good to read !
Just for my curiosity; can you please try to replace the line

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pactl -- set-sink-volume 0 80%

to

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/bin/bash -c 'pactl -- set-sink-volume 0 80%' 

or

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/bin/bash -c '/usr/bin/pactl -- set-sink-volume 0 80%'  # If that is the path to pactl (check with which pactl) 

and test ?
Thx!

[rudder66]

It does not work in both cases. I checked all the paths to the utilities - they are correct.

[Thuis]

Is domoticz user in the audio group?
https://www.freedesktop.org/wiki/Softwa ... fectSetup/

I have a slider switch thingy, and a script that goes like this:

Spoiler: show

commandArray = {}

for deviceName,deviceValue in pairs(devicechanged) do
if (deviceName=='BTVolume') then
local a = (tostring(deviceValue))
if a == "On" or a == 'Off' then
a = 0
end

local percentage = (tonumber(string.match(a,'%d[%d]*')))
cmd = 'pactl set-sink-volume bluez_sink.00_58_xx_xx_xx_xx.a2dp_sink '..percentage..'%' -- send to SPEAKER
os.execute(cmd)
end
end

return commandArray

And this works. I had the same problems, only I use a bluetooth speaker to play music in the bathroom. My only solution was to set pulse as system wide.
I now can change the volume with a button in domoticz. Maybe for a soundcard it is different? My domoticz user is not root.

Systemwide:
https://www.freedesktop.org/wiki/Softwa ... ystemWide/

Also i have a selector switch with mp3 and radio stations to choose from.
Here is an example of radio rijnmond script:

Spoiler: show

1 #!/bin/sh
2 echo quit > /home/userx/domoticz/scripts/mplayer.pipe > /dev/null 2>&1 &
3 killall mplayer > /dev/null 2>&1 &
4 sleep 1
5 Audio1="http://d2e9xgjjdd9cr5.cloudfront.net/au ... ylist.m3u8"
6 /usr/bin/mplayer -ao pulse -noconsolecontrols -slave -volume 80 -input file=/home/userx/domoticz/scripts/mplayer.pipe -playlist $Audio1 > /dev/null 2>&1 &

The volume goes to 80 but i can change it with the slider switch from 0 to 100.

Maybe it is of help to you, just for information.