Playing sound to google home plays unwanted tone

The following will play an mp3 to the specified google home device. However if the device has been idle for a while, it will precede the mp3 with an “announce” sound. Any idea on how to prevent this from happening?

- service: media_player.play_media 
  data_template:                 
    entity_id: media_player.entryway_speaker
    media_content_id: https://homeassistant.example.com/local/beep.mp3
    media_content_type: 'audio/mp3'

check this post:

It’s not a 100% but prevent most of them

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I noticed that you can change the volume of Google Home Mini while it is off. To avoid the prompt sound, this should work:

  1. check if GH is off
  2. store current volume
  3. set volume to 0
  4. turn GH on (the prompt sound is played at zero volume)
  5. set volume to the previous level

Haven’t tried it myself, but might work.

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