[BRLTTY] Brltty sounds absence with sof-firmware driver used on Linux

[Vsevolod Popov]

Hello everyone.
I have one of the late HP Laptops that uses sof-firmware driver for 
sound and I notice that when I connect a braille display to my laptop, I 
hear a popping sound instead of standard brltty initialization sound, 
like a sound when you connect an audio wire and speaker turns on with 
the popping sound.
As far as I understand, the reason why I hear this popping instead of 
standard brltty sound is the reason that a PC speaker doesn't work.
Is that right?
  I had the same behavior on Ubuntu, I have it on Arch Linux now.
If my thoughts are correct, I will try to report the issue to sof-bin 
repository.
Or it has to do with other things?
Thank you!

-- 
regards,
Vsevolod
https://github.com/sevapopov2/