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Ava Robotics

A-012: Adding an External Mic to an Ava Robot

Updated August 2024

This Tech Note describes how clients integrate a wireless microphone for use with the Ava Telepresence Robot using a line level input. This note is for robots that use Cisco RoomKit Codec Plus or Cisco SX20 as their codec.


It should be taken as general guidelines created based on an actual implementation in the field, but exact steps may vary depending on component selection, codec software version and other requirements.


Necessary Hardware

Hardware Installation

When installing the external microphone, it is important that it not lay on the internal circuit boards or interfere with the external shell closures. To install:

  1. Remove Ava’s external shells

  2. Connect the mic receiver to the face of the video codec using industrial strength double sided tape

  3. Disconnect the 2nd Ava cable from the 2nd microphone input on the video codec

  4. Connect the cable from the mic receiver to the 2nd microphone input on the video codec

  5. Connect the receiver power to one of the video codec USB power slots

  6. Ensure that the external microphone powers on

  7. Reconnect Ava’s external shells


Video Codec Settings

A user must manually switch between microphones to alternate between using Ava’s mic system and the external mic. This is done in the Codec Web Interface, which Ava Administrators have access to.

  1. Login to the Ava Administrator Console, go to the desired robot detail page

  2. Browse to the Codec Web Interface, login with the proper credentials

  3. Navigate to Setup > Configuration > Audio

  4. To switch between the mic that is in use, change the Mode settings


Using Ava’s Mic

Using the External Mic

Microphone 1 (Ava’s mic)

Mode - on

Mode - off

Microphone 2 (external mic)

Mode - off

Mode - on

Note: Do not have both Ava’s mic and the external mic active at the same time.


Example Configuration for Using Ava’s Mic System


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