Tools
Small calculators for numbers producers keep re-deriving. Everything runs in your browser; nothing is sent anywhere.
Tempo to time
Note lengths in milliseconds at a given tempo. The 1/32 and 1/64 rows are the usual pre-delay values.
| Note | Straight | Dotted | Triplet |
|---|
Note and frequency
Equal temperament, A4 = 440 Hz. The reverse field snaps to the nearest note and shows the offset in cents.
Samples and milliseconds
Converts both ways at the selected sample rate.
Adding two levels
Two identical, time-aligned copies sum to +6.02 dB. Two unrelated sources of equal level sum to +3.01 dB. This does the general case.
Offset to comb filter
Where the cancellations land when two copies of one sound are offset. The arithmetic behind nudging tracks off the grid.