Hello @Olympicsfan
Thanks for reaching out to our Nest Community about your Google speaker alarm. Im happy to help you with that.
Unfortunately, you can't directly change the default alarm tone on a standard Google Home. I apologize for all inconveniences.
if you can share this feedback with our team please fill out this form. Your opinion is very important to Google.
Feel free to post again if you have questions. We're here to help.
Best regards,
Douglas.
