Use the room mode calculator below to get some insights on the modal activity within your room. It features a general frequency chart showing general spacing between all axial, tangential, and oblique modes. There’s a section providing some general room statistics. You’ll also find a plot of where the room ratio falls in relation to Bolt‘s suggested room ratios. There’s a graph following Bonnello’s theory that for an ideal listening room, every successive ⅓ octave should have the same amount (or more) of modes than the preceding octave. In other words, a rising slope would be ideal; a dip down is generally problematic and will be indicated with a red dot. Lastly, there’s a table containing all modal data for this room.

Read our post about room modes to learn more.