Sync volume

Configuration
1

Hi!
i want to sync volume between two different media_player.
Volume is an attribute for both entity.

When i change the volume on media player A i want that media_player B change too.

Is it possible to create an automation ?

2

It is possible. You have to create trigger base on entity attribute.

Here is the example:

automation:
  trigger:
    platform: numeric_state
    entity_id: sensor.temperature
    # Optional
    value_template: "{{ state.attributes.battery }}"
    # At least one of the following required
    above: 17
    below: 25

    # If given, will trigger when condition has been for X time, can also use days and milliseconds.
    for:
      hours: 1
      minutes: 10
      seconds: 5

Then you have to call a service to set a volume on another media_player entity.

3

Thanks for your help.

I 'll try this:

- alias: 'manage volume'
  trigger:
    - platform: numeric_state
      entity_id: media_player.salon
      value_template: "{{ state.attributes.volume_level }}"
      above: 0
  condition: []
  action:
    - service: media_player.volume_set
      data:
        entity_id: media_player.cuisine
        volume_level: ??

For ā€œvolume_levelā€ how can i call the volume level attribute of the media_player.salon?

4

{{ state_attr('media_player.salon', 'volume_level') }}

5

Great thanks, almost!

- alias: 'manage volume'
  trigger:
    - platform: numeric_state
      entity_id: media_player.salon
      value_template: "{{ state.attributes.volume_level }}"
      above: 0
  condition: []
  action:
    - service: media_player.volume_set
      data_template:
        entity_id: media_player.cuisine
        volume_level: "{{ state_attr('media_player.salon', 'volume_level') }}"

It works the first time i change the volume on media_player.salon, they are sync. But it only works one timeā€¦? strange. Any idea?

I can set a trigger every seconde but itā€™s not very smartā€¦

1 Like
6

Maybe HA is preventing a loop here. You could also just have a trigger listen for any state change with a sensor

#sensor:
  - platform: template
    sensors:
      salon_volume:
        value_template: >
          {{ state_attr('media_player.salon', 'volume_level') }}

#automation:
- alias: manage volume
  trigger:
    - platform: state
      entity_id: sensor.salon_volume
  action:
    - service: media_player.volume_set
      data_template:
        entity_id: media_player.cuisine
        volume_level: "{{ states('sensor.salon_volume') }}"
3 Likes
7

Yes! Thank you @Mattias_Persson!! Youā€™re the best!

1 Like
8

this automation works as intended. all you need to do is add the following at the end
service: automation.reload

reason is firs trigger happens when value moves above zero, after that any other movements wont trigger.

reloading the automation, starts the process all over.

9

Thanks for the thread! Got my volume syncing.
Anyone know how I can subtract so the volumes are pegged but not the same.
I tried

volume_level: "{{ state_attr('media_player.salon', 'volume_level') - 10 }}"

and

volume_level: "{{ state_attr('media_player.salon', 'volume_level') }} - 10"

and

volume_level: "{{ state_attr('media_player.salon', 'volume_level') }}" - 10

and one or two of those saved, but did not work.

Thanks.

10

Well, obviously none of those would work. The last one is not a even valid template. The second one is, but would result in a string that literally prints out ā€œX.XX - 10ā€ where X.XX is the current volume.

The first one would perform a calculation alright, but end up with a value somewhere between -10 and -9. The range of the volume_level attribute is not an integer 0ā€“100 but a float 0ā€“1.

Thus the way to do it would be this:

volume_level: "{{ state_attr('media_player.salon', 'volume_level') - 0.1 }}
11

Tried that too, but without the ā€œ0ā€.
Thank you. It works

12

Hi all,

New to the community and fairly new to building automations.

Iā€™m trying to do exactly this, sync volums between 2 media players.
For my case itā€™s the main zone and zone 2 of my Denon AVR.

Main zone is at the TV and Zone 2 is the additional speakers at the other side of the room in the kitchen area.
I managed to make automations so Zone 2 switches on when I switch to Spotify or Tuner and it switches back to main zone (zone 2 switches off again) only when I switch to my TV input again.
All good.

Now I want to sync the volume of the main zone and zone 2. When I change the volume of the main zone, zone 2 changes accordingly (but with an offset of + 0.05)

Iā€™m terrible at this YAML code stuff (trying hard to learn) so Iā€™m getting stuck.
Seems like the YAML code has changed slightly since the posts from 2020?

I made this part:

description: Sync volume Main zone and zone2
platform: template
sensors:
  mainzone_volume:
    value_template: 
      {{ state_attr('media_player.denon_avr_x1800h', 'volume_level') }}

But when I lookup entity ā€œsensor.mainzone_volumeā€ in the developer tools > states it says ā€œstate unknownā€
so this first step isnā€™t working for me.

@danieljbrennan would you mind sharing the code you are using? As Iā€™m expecting itā€™s slightly nupdated from the 2020 version above?

Thanks for the help, appreciated!