UltraPitch Manual
11
Since UltraPitch has an approximate 5 cent resolution, you have to round to the nearest 5, so this example
becomes 3 half-steps (minor 3rd), plus 85 cents more.
3 In your sound editor (e.g. SoundForge), change your sound header (the defined sample rate,not the
actual one) from 44.1kHz to:
New sample rate = 44.1 x 80% = 35.28kHz.
On Sound Designer II files, this can be done directly on the sound file using Apple’s ResEdit utility by
changing the value of the “STR” (1001) resource, or directly in SDII by selecting “Get Info” from within the
program (not at the Finder level). For other platforms, contact the maker of your editor for information on
how to change the defined sample rate of the file.
4 Now convert the sample rate of the sound file to 44.1kHz by using your sound editor or WaveConvert
Pro, the batch-file converter from Waves. (WaveConvert Pro is available separately, and also is included
in the Gold Bundle; a demo is on our web site.)
The result is a sound playing in the original pitch, but 80% slower, and formant-corrected.
Twisting gender using formants
When the formant value is set to zero, UltraPitch performs fully formant-corrected pitch shifting while
maintaining a consistent mouth and lung “size”, and position of the singer. The sound vibration modes can
be divided into two groups:
1. Negative formant values
C o r r e s p o n d t o a c h a n g e i n t h e m o u t h s h a p e c r e a t i n g l e s s h i g h f r e q u e n c y o r a l v i b r a t i o n s a n d h a r -
m onies (tow a rds ‘u’ vowel s ) . You can use a nega tive formant to make the gen der of the voi ce sound
m ore masculine.
2. Positive formant values
G i v e m o r e h i g h - f r e q u e n c y v i b r a t i o n m o d e s ( t o w a r d s ‘ i ’ v o w e l s ) . T h e f o r m a n t v a l u e c a n b e a l t e r e d w i t h o u t
s h i f ting the pitch in order to ch a n ge the voi ce of a singer. Use a po s i tive formant for a feminine sound.
You’ll notice under the Voice character graph the letters: u, o, a, e and i. These correspond to the types of
sound produced by the vibration modes spanning the formant parameter’s axis.
Monitoring the notes of a tune
To some degree , you can wri te down the notes of a tune of a mon oph onic sound source (or at least determ i n e
a few long note s ! ) . Perform the pitch detecti on process de s c ri bed at the beginning of this Quick Start . Th e
n o tes of the ori ginal tune wi ll be mon i tored both on the Pitch - Mon i tor gra ph and on the Keyboa rd display.