Google Nest Audio is a dandy little speaker for ‘casual’ listening, inexpensive and super-easy to use with Audirvana Studio.
I experienced intermittent problems, however, with music stopping every eight-some-odd hours. Audirvana log files showed the Chromecast speaker disconnecting.
Looks like there is a memory leak in the Google Nest Audio: performing a ‘reboot’ from the Google Home app appears to resolve the problem for about a week. Hopefully gets fixed in a firmware update … workaround is painless in the meantime.