Smarthome:audio sinks and getting the right output

Setup, Configuration and Use Beginners
1
  • Hardware: RPi(3)
  • OS: OpenHabian
  • Java Runtime Environment: Zulu 8 (32 bit)
  • openHAB version: 2.5.10

Hi folks,

staring to experiment with rules and audio. Finally got my first rule working when I press a button on an ESP. It took me 1 week and the patience of many users on this forum to get it working :slight_smile:

Now I want to start getting the project to fruition. My rule will play a playSound("doorbell.mp3") when I press the button but the sound can only be heard through the HDMI channel, not the audio jack channel of the RPi(3). Any clues as to why? This is what I get when I run in the console:

openhab> smarthome:audio sinks

  • System Speaker (enhancedjavasound)
    Web Audio (webaudio)

If I run aplay -l, both cards are showing:

[20:07:05] openhabian@demeter:~$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: b1 [bcm2835 HDMI 1], device 0: bcm2835 HDMI 1 [bcm2835 HDMI 1]
Subdevices: 4/4
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
Subdevice #2: subdevice #2
Subdevice #3: subdevice #3
card 1: Headphones [bcm2835 Headphones], device 0: bcm2835 Headphones [bcm2835 Headphones]
Subdevices: 4/4
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
Subdevice #2: subdevice #2
Subdevice #3: subdevice #3

Not sure if I have to tell OH2 to use Card1 instead of Card0? PaperUI is only showing System Speaker in Configuration -> System -> Audio. Any thoughts?

2

You have to choose the audio sink. There are two methods to do this

  1. Choose it via PaperUI. Configuration -> System -> Audio I think
  2. In the rule. Here’s an example
say("Achtung! Es ist draußen um " + DeltaT_String + " Grad wärmer!", "googletts:deDEWavenetE", "chromecast:audio:117d7192836ad331853aa79e96aa2985") //Chromecast Audio

You can find the name of the device in the PaperUI. (See 1)

3

But I did that and it says “System Speaker” under Audio in PaperUI. I think this is more to do with Rasbian (see here). I could force Jack output is only i could run sudo raspi-config. In fact, this is the output:

raspi-config is not part of openHABian, please use openhabian-config instead.

But I couldn’t find anything to configure under openhabian-config.

4

Did you google on how to force output though 3.5mm? The raspi-config is only able to change config files.

5

Tried, sudo apt install raspi-config. Then launched the app, selected the jack output and it simply gets ignored. In the end, the only working option is to unplug HDMI and reboot RPi(3).

6

Try this amixer cset numid=3 1

(Source https://raspberrypi.stackexchange.com/a/88028)