![The echo-acoustic properties of a tunnel with either its exit open or... | Download Scientific Diagram The echo-acoustic properties of a tunnel with either its exit open or... | Download Scientific Diagram](https://www.researchgate.net/profile/Daria-Genzel/publication/268789658/figure/fig2/AS:295386414632978@1447437017916/The-echo-acoustic-properties-of-a-tunnel-with-either-its-exit-open-or-closed-Shown-is.png)
The echo-acoustic properties of a tunnel with either its exit open or... | Download Scientific Diagram
![File:2019-05-27 12 14 06 View north along the inner loop of the Capital Beltway (Interstate 495) at Exit 41 (Clara Barton Parkway, Carderock, Glen Echo) on the edge of Potomac and Cabin File:2019-05-27 12 14 06 View north along the inner loop of the Capital Beltway (Interstate 495) at Exit 41 (Clara Barton Parkway, Carderock, Glen Echo) on the edge of Potomac and Cabin](https://upload.wikimedia.org/wikipedia/commons/thumb/d/d8/2019-05-27_12_14_06_View_north_along_the_inner_loop_of_the_Capital_Beltway_%28Interstate_495%29_at_Exit_41_%28Clara_Barton_Parkway%2C_Carderock%2C_Glen_Echo%29_on_the_edge_of_Potomac_and_Cabin_John_in_Montgomery_County%2C_Maryland.jpg/1280px-thumbnail.jpg)
File:2019-05-27 12 14 06 View north along the inner loop of the Capital Beltway (Interstate 495) at Exit 41 (Clara Barton Parkway, Carderock, Glen Echo) on the edge of Potomac and Cabin
![FINALLY… Echo devices can now mimic noise (siren, sensor chirps, entry/exit delays) from Ring Alarm Pro. Previously this was done with Alexa Routine announcements and was limiting, a huge PITA, and tedious FINALLY… Echo devices can now mimic noise (siren, sensor chirps, entry/exit delays) from Ring Alarm Pro. Previously this was done with Alexa Routine announcements and was limiting, a huge PITA, and tedious](https://external-preview.redd.it/nXZvoUncl0VjPHJcJF7t_LO89PsYmYEUDyWU89C312Y.jpg?auto=webp&s=d5b7ea3eafee839e97f2a7745f8784c4a17d8a51)
FINALLY… Echo devices can now mimic noise (siren, sensor chirps, entry/exit delays) from Ring Alarm Pro. Previously this was done with Alexa Routine announcements and was limiting, a huge PITA, and tedious
![No YouTube for Echo Spot: Google's exit also extends to Amazon's newest touch-screen device – GeekWire No YouTube for Echo Spot: Google's exit also extends to Amazon's newest touch-screen device – GeekWire](https://cdn.geekwire.com/wp-content/uploads/2017/09/echospot-1-630x418.jpg)