In order to correct the pitch of a vocal, VoiceWorks / VoiceLive needs three pieces of information.
It needs to know what pitch you are singing, it needs to know what pitch you would like to be singing, and it needs to know how perfectly you would like to be singing it.
The first piece of information is determined automatically by the VoiceWorks / VoiceLive as you sing using vocally trained pitch detection algorithms. The second piece is supplied by you in the form of a set of possible target correction notes.
The VoiceWorks / VoiceLive looks at the set of supplied notes, listens to your vocal, and determines which note you are closest to at any given time.
Depending on how you’ve configured the correction settings, the VoiceWorks / VoiceLive will then either subtly nudge your pitch, or aggressively force it to match the target note.
The best way to supply a set of target notes is in the form of a scale that matches the musicality of your vocal. For example, you could select all of the notes of C Major to be your target notes.
VoiceWorks: Setting the target correction notes
Double click the PITCH CORRECTION key.
The root of the scale should be flashing. Change it to "C" with the DATA WHEEL.
Press the DOWN ARROW key once and edit the SCALE TYPE parameter to "Maj".
VoiceLive: Setting the target correction notes
Press the EDIT key and turn the encoder until you reach screen CO.1.
Turn EDIT 1 to change ROOT to a "C".
Turn EDIT 2 to change SCALE TYPE parameter to "Maj".
Three parameters control the behavior of the VoiceWorks’ pitch correction algorithms (making them more or less aggressive). A really badly out of tune vocal will require aggressive settings, but settings that are too aggressive may start to sound robotic, as only a robot could sing so perfectly in tune.
Controlling the behavior of pitch correction
VoiceWorks: press the DOWN ARROW again to edit the WN, AT, and AM parameters. Here is what these parameters do and how you can use them:
VoiceLive: turn the encoder wheel to get to screen CO.2.
WN: This sets the correction window in cents. When VoiceWorks tries to determine which target note you are closest to, it uses this parameter. For example, if the set of correction notes includes "C, D, E, F, G, A, B" (C-major), and you are singing a very sharp D (80 cents sharp), the window dictates whether you should be corrected to D, or not at all. If the window was set to 80 or more cents, the D# would be corrected to the D because it falls within the window. If the window was less than 80 cents, no correction would take place. Your input pitch must fall within the window around one of the supplied correction notes if it is to be corrected at all. This allows you to naturally inflect your vocals and slide between notes while cleaning up the pitches as you get fairly close to them. A setting of 100 cents or larger will cause correction to be on continuously when using the scale C-Major, as 200 cents is the largest interval between any two notes.
AT: This sets the pitch correction attack rate. Once the target correction pitch has been identified by Voiceworks, it begins to shift the pitch of your vocal at a rate determined by this parameter. A setting of 99 gives the fastest setting which instantaneously pulls your vocal intune, an effect that can be useful for some types of music. Settings between 16 and 40 give the most natural results.
AM: Sets the amount of correction applied. A setting of 99 gives full correction to the target pitch. Lower settings result in less correction being applied. This parameter adds more realism since most people never sing exactly in tune. Refer to the user manual for a complete description.