Pitch Shifting vs Frequency Shifting: Hear the Difference

Keep the musical intervals, change the register

In Pitch mode, every frequency is multiplied by the same ratio. An octave doubles the frequencies, while seven semitones raises the phrase by a fifth. This is useful when a part needs another register without rewriting its rhythm. It does not detect a key or correct individual notes: the entire passing signal receives the same shift.

Both examples use the same original eight-second synthesized pluck, not a sampled instrument recording. Its separated notes make the attack and fading harmonics easy to compare. Play the first example with Dry/Wet at 100%, then move Pitch from +7 to 0 and back. Follow the melody rather than judging only whether the result is brighter. Fine adds small offsets in cents; leave it at zero for this test.

Next lower Dry/Wet toward 50%. You are now hearing the original notes together with their transposed partners, not a less accurate transposition. That can supply a harmony, but overlapping harmonics and softened attacks can obscure a busy line. Back off the wet amount if the added register distracts from the original phrasing.

Break the harmonic relationships on purpose

Freq mode adds a fixed number of hertz instead. Imagine partials at 200, 400 and 600 Hz: adding 80 Hz gives 280, 480 and 680 Hz. They are no longer integer multiples of the lowest partial. This is why frequency shifting can produce a clangorous texture rather than a melody neatly moved up the keyboard.

In the second example, compare Coarse at +80 Hz with zero. Listen to the tail becoming less harmonically settled. Then bring Coarse to zero and try a small positive Fine value in hertz, with some dry signal mixed back in. Slow interference between original and shifted partials can create movement; large offsets are better treated as sound design than tuning repair. Wide changes the stereo treatment in Freq and Ring modes, so leave it off while learning the basic difference.

Ring mode multiplies the input by a carrier and creates sum and difference components. Try Ring Freq around 110 Hz at a restrained wet level. Unlike the one-direction shift in Freq mode, both sets of components contribute to its character. Drive has its own enable button: raising the knob alone is not the same as engaging it. Reduce wet level or drive when the original note loses its role.

Make a repeat climb, rather than merely repeat

Return to Pitch, set Pitch to +7, turn Delay on and choose Sync with a 1/4 division. Start with Feedback near the bottom and raise it slowly. The delayed signal feeds back through the shifter, so successive passes climb again. This differs from putting an ordinary delay after a completed transposition. Lower Dry/Wet to retain the immediate pluck while the shifted echoes occupy its gaps.

Tone is a lowpass inside that feedback loop: it darkens recirculating passes, not the dry sound, and it does nothing useful with Delay off. Shorten the trail when it bridges unrelated notes. In Pitch mode, Formant enables compensation and F. Shift changes the spectral envelope; neither is a promise of natural results on every source. Window changes the analysis configuration and can reset the sound, so adjust it between comparisons, not as a performance sweep. Leave Window and Tonality on Auto until you have a specific artifact to investigate.