Hi, is this a tape-based project? If it were, then if the tempo was 65 and the original tape was recorded at 15ips, if you ran it at 30ips, it would move up by one octave and sound like the chipmunks. A small increase from 65 bpm to 72 bpm, whatever percent increase that is, done with some kind of varispeed control, would yield a relatively small interval. I’d make a protection copy of the orginal project and then experiment with tape-style time stretching, but I’m not really sure about how this would work exactly. Cubase’s Time-stretching does a lot of things. If someone wanted to work in a tape-style way and ‘George Martin-out’ with loops, it’s probably possible. Greg Ondo might have some good ideas about this.
Why do you want to increase the tempo and have pitch increase? One of the beautiful things about digital audio is being able to change tempo without the pitch being effected, as it was with tape. Also, why not pitch shift and transpose the material using the usual Cubase functions for those things?
Very geeky question. heh.
P.S. – “Musical intervals are often expressed in cents, a unit of pitch based upon the equal tempered octave such that one equal tempered semitone is equal to 100 cents. An octave is then 1200¢ and the other equal tempered intervals can be obtained by adding semitones:…”
P.P.S. – The JND – “Just Noticeable Difference in Pitch”
"The just noticeable difference in pitch must be expressed as a ratio or musical interval since the human ear tends to respond equally to equal ratios of frequencies. It is convenient to express the just noticeable difference in cents since that notation was developed to express musical intervals. Although research reveals variations, a reasonable estimate of the JND is about five cents. One of the advantages of the cents notation is that it expresses the same musical interval, regardless of the frequency range. " (same link as in PS)