FJ's Time Align Tool
A delay calculator based on distance and temperature.
This ensemble calculates the amount of miliseconds needed to align two sources. You just have to set the distance between the two,the height difference (if needed), the room temperature, and it will automatically apply the amount of miliseconds equivalent to this distance and temperature.
You can choose between feet or meters and Celsius or Fahrenheit.
I use it a lot to align drum mics, big band recordings and orchestra recordings.