Tempo (BPM) cannot be measured or the measurement value of tempo (BPM) is implausible.

There are two possible causes.
1. Is the audio input level too high? Or is it too low? Adjust the output level of the connected equipment while looking at the peak level indicator of this unit.
2. For some tracks the tempo (BPM) cannot be measured. In this case, use the [TAP] button to input the tempo manually.