[ngrant]

Originally Posted by tubemonkey

I'm trying to escape Alexa's constant "now connected / disconnected" announcement every time I enable/disable Bluetooth or change sources. If she'd just shut up, I'd be perfectly happy using an Echo as a Bluetooth speaker.

Here are some things to try. Maybe they'll work for you. (I use mostly Google Assistant speakers - they just do a soft beep when they connect/disconnect.)

TL;DR
Turn Off Announcements
Enable Alexa Brief mode
Restart device after changing these settings

AND Turn on Do Not Disturb mode

The long version

Spoiler:

Turn Off Announcements on The Device
Open your Alexa app and go to settings
Choose Device settings
Select the specific Alexa device
Choose settings on that specific device; there is a communication option select it.
Disable the announcements toggle under communication
After disabling the announcements toggle, restart the respective echo device. Perform a power cycle to restart the device. Unplug the device from the power outlet, wait for 10 – 20 seconds, and reconnect the device to power. Let the device restart and connect to your network.

Enable Alexa Brief mode
Enabling the brief mode makes Alexa talk less and play beeps instead of long voice responses. Here is how to go about it;

Open the Alexa app > select More icon
Select Settings
Choose “Voice Responses” under Alexa preferences
Toggle on the “Brief Mode” button. Friendly and easy, your device is in brief mode.

Turn on Do Not Disturb mode.
The DND mode disables all Alexa features and provides a quiet environment to work in. This turns off announcements and blocks notifications. However, it isn’t a permanent solution to the issue at hand. The command, “Alexa, turn on do not disturb mode,” enables the mode. You can also toggle off or on the mode by navigating the Alexa app settings.