There are a few places within a Canvas site to create a new VoiceThread. Read instructions for adding VoiceThread to Canvas.

After deciding where to place a VoiceThread in your Canvas site, you need to decide which type of VoiceThread to use. This may be a link to a single VT, a VT Home link or a Course View link. Read more information on the types of links.

Here is a link to a short video on how to Create a New VoiceThread.

https://voicethread.com/howto/creating-a-new-voicethread-2/