added video link

USAGE.md

@@ -140,7 +140,7 @@ Regarding name changes, please be cognizant of the fact that these names are for
 ### Recording ![Recording](images/Microphone%20alone_sm.png "microphone")
 The first time you try to record, you will be asked to tell [A→Z+T](https://github.com/kent-rasmussen/azt) what sound card parameters you want. You can set frequency, bit depth, and sound card number (to select between multiple cards, for your microphone and for your speakers. This window is designed with test `play` and `record` buttons, so you can set parameters and test them, before moving on. I suggest you budget some time to play with the settings there, until you are satisfied with them.
 
-N.B.: There are some combinations of settings (likely those beyond the physical limits of your sound card) which **play fine in AZT, but do not produce good sound files**. This is simple enough to discover, by playing the sound file in another tool, such as [Praat](https://www.fon.hum.uva.nl/praat/) (right click on `play`, if [Praat](https://www.fon.hum.uva.nl/praat/) is installed in your operating system's path). Please check that you are creating good sound files before recording language data.
+N.B.: There are some combinations of settings (likely those beyond the physical limits of your sound card) which **play fine in AZT, but do not produce good sound files**. This is simple enough to discover, by playing the sound file in another tool, such as [Praat](https://www.fon.hum.uva.nl/praat/) (right click on `play`, if [Praat](https://www.fon.hum.uva.nl/praat/) is installed in your operating system's path). Please check that you are creating good sound files before recording language data. There is a video overview of this process [here](https://github.com/kent-rasmussen/azt/releases/download/v0.8.6/PraatVerification.mp4).
 
 The settings window will you select the highest quality that it thinks your card can do; test to see if it records and plays back OK, then confirm by playing the sound file in anoter player. I have found several computers with cards that can record at 96khz, somewhat to my surprise —though be sure to think about your microphone and environment, etc, too! If you are making recordings for easy sharing over low bandwidth (as opposed to linguistic study), consider the implications of these setting on the size of your files.