Extracting a Tempo Definition Grid from Audio

If you want to match audio with an unknown tempo or a beat that is not straight to the project tempo, you need to extract its tempo definition grid first. This is done with the Auto Adjust function in the Definition section of the Sample Editor.

Prerequisite

You have defined a range in your audio clip or event that starts and ends at a bar line.

Procedure

  1. Double-click the audio clip or event in the Project window to open it in the Sample Editor.
  2. Open the Definition section, and select a value from the Grid pop-up menu.

    This determines the grid resolution for your audio.

  3. With the Range Selection tool, select the section that you want to use in your project, and that covers one or several bars.
    Note

    If you do not select a range, the grid is calculated for the audio event. If no audio event is defined, the grid is calculated for the clip. Make sure that the event or clip starts and ends on a bar line.

  4. Click Auto Adjust.

Result

The definition grid is calculated for the selected section. The snap point moves to the start of the selected range. The audio tempo definition ruler changes to reflect your edits, and bars and beats positions are marked with vertical lines.