Varispeed Tool
| Tempo | BPM | |
| Cents | ||
| Up + | Semitones | Down - |
| calc +1 | 1 minor second | calc -1 |
| calc +2 | 2 major second | calc -2 |
| calc +1 | 3 minor third | calc -1 |
| calc +2 | 4 major third | calc -2 |
| calc +1 | 5 perfect fourth | calc -1 |
| calc +2 | 6 diminished fifth | calc -2 |
| calc +1 | 7 fifth | calc -1 |
| calc +2 | 8 minor sixth | calc -2 |
| calc +1 | 9 major sixth | calc -1 |
| calc +2 | 10 minor seventh | calc -2 |
| calc +1 | 11 major seventh | calc -1 |
| calc +2 | 12 octave | calc -2 |
Varispeed is a term for the variable speed of a tape recorder (playback device). The speed at which the recording is played back, has a direct effect on the pitch and timbre.
To facilitate this 'old skool' process in DAWs such as Pro Tools, I made this Varispeed Tool.
Tips
Is your "vintage" upright piano a tad too low, but you like the "vibe" so you don't want to have it tuned? Don't throw it away, use the cents function of Varispeed tool!
Calculate "musical" frequencies, for example: The major third above concert A (440Hz). Come on, try it!
This is the Studer A820 24-track I use for all Writersday recordings at White Dove Studio
“The Beatles also used this Varispeed Tool...”
- Bent Langerak