Thank you very much for confirming this for us.
Can you please try removing and re-adding the Google Assistant from your Soundbar 700?
I would also suggest rebooting the soundbar by unplugging from the mains for 30 seconds then re-applying to power.
Do let us know if this shows any improvements.
That's quite strange to hear! Do you notice any distortion in the audio when you play music through the soundbar? Or does this simply only happen when using the Google Assistant?
Thanks for your reply.
The suggestion wasn't meant as a solution, merely as a means for testing to see if the issue persists via other services.