Mediasite Mosaic for MacOS

Mediasite Mosaic is a modern replacement for the Mediasite Desktop Recorder to help you create digital content from screencasts, video feedback and podcasts. This guide shows you how to install, register and create content using Mosaic.

Please Note: This app is only available for MacOS Catalina or Big Sur. If you are using Windows 10, please use the guide titled 'Mediasite Mosaic for Windows' which can found in the 'Related Articles' section of this article.

Step One: Install Mosaic

Mediasite Mosaic is installed via the Mac App Store. This ensures you will always have the most current version and there will be no need to download a manual installer.

To install Mosaic, visit the following link on a Mac running Catalina or Big Sur:

Screenshot of Mediasite Mosaic in the Mac App Store on Catalina


Step Two: Register Mosaic

To make sure your recordings automatically upload to Mediasite, you need to register Mosaic. This is very quick and only needs to be done once.

To register, visit the following website: (you will be prompted to log in with your University username and password).

Under the Install & Register heading, click Register.

Register option in Mediasite

You will be prompted to open Mosaic. Please allow this.

Mediasite Mosaic will launch and be ready to configure a recording. You will know that your copy is registered when you see your username in the upper right corner drop-down.


Step Three: Configure your recording options

Mosaic features a simple recording interface. To record, simply choose the inputs you'd like to record and ensure the option is ticked.

To record, you must first select your recording inputs. To begin, choose an audio device, such as your microphone or headset. 

To do this, click on the microphone icon in the top left (shown below)

Record built-in microphone

Click on the microphone you want to use. A headset is recommended for best quality. Once it is selected, the recording button will turn red at the bottom and allow you to record.

You can do the same for the webcam icon if you'd like to record video. This is optional.

Optional Webcam

To record your display, click on the display icon.

Record Display

The next time you open Mediasite Mosaic, your previously chosen options will already be selected.


Step Four: Record using Mosaic

Once you have chosen your recording options as described above, you are ready to record. 

To start recording, click the Record button (shown below):

Once the recording begins the app will display a count down from 3 and automatically minimise to the Dock. Your Mac's webcam light will be on if you are recording with your built-in camera. The Mediasite icon will be displayed in the macOS status menu (top right of the menu bar) anytime the app is recording.

To pause or finish the recording, click the Mediasite icon in the menu bar (shown below):

Mediasite Recording Icon

When your recording is paused, the timer will flash red (as shown below):


Click the Record button again to resume the recording or Stop to finish the recording.

Your recording will then automatically upload to Mediasite. Once you receive an email confirming it is ready, you can then share or link your recording to a module in Minerva following this guide.


Bulk upload content to Mediasite using Mosaic

Mosaic includes a new feature which allows the bulk upload of MP4 videos to Mediasite. Using Watch Folders in Mosaic, video files from any source can be added to a watched folder and then automatically be uploaded to Mediasite. Mosaic then watches for new content added to this folder and will automatically upload it if the options are configured.

To configure this in MacOS, you can add a new folder to Mediasite Mosaic, start by selecting File > Import Folder

Big Sur preferences

Locate and select the folder you would like to import to Mediasite Mosaic then click Open.

All MP4 and MOV files within the folder will be imported into Mediasite Mosaic and automatically uploaded to Mediasite.