Adjusting Parameters
Creating Your First Song2025/10/2 9:232026/1/4 12:11Launching VoiSona2025/11/2 12:152026/1/4 12:12Selecting a Voice Library2025/11/2 12:152026/1/4 12:13Editing the Score2025/11/2 12:152026/1/4 13:56Adjusting Parameters2025/11/2 12:072026/1/4 13:56Importing and Exporting Files2025/11/2 12:072026/1/4 12:19Changing Preferences2025/11/2 12:072026/1/4 12:21Frequently Asked Questions2025/11/2 12:252026/1/4 12:21
In VoiSona, you can make a wide range of parameter adjustments—from those that affect the entire song to detailed edits such as timing and vibrato.
Adjusting Global ParametersAdjusting Advanced ParametersAdjusting TimingMaking Even Finer AdjustmentsAligning Vowels to the Beginning of NotesAdjusting Other ParametersDuplicating Parameter LinesAdjusting VibratoMaking More Precise Adjustments (Detailed Mode)Selecting Notes and Parameters Together
Adjusting Global Parameters
You can adjust parameters that affect the entire track individually for each track.
- Tap the "Parameter" button to open the panel.
- Use the slider to adjust.

Adjustable Parameters
- TUNE Pitch Accuracy. Lower values result in looser pitch matching; higher values make the pitch more faithful to the score.
- VIA Vibrato Amplitude. Higher values produce a wider vibrato.
- VIF Vibrato Frequency. Higher values result in shorter, finer vibrato cycles.
- ALP Age. Lower values make the voice sound more childlike, while higher values make it sound more mature.
- HUS Husky. Higher values result in a huskier vocal tone.
Adjusting Advanced Parameters
Switching between adjustment screens allows more detailed parameter settings.
On devices with smaller screens such as iPhone, you can switch between adjustment screens by selecting from the pop-up menu. On devices with larger screens such as iPad, you can switch by tapping the tab.
The display and non-display of each parameter can also be set here.


Adjusting Timing
You can adjust the start and end timing of phonemes.
- Tap the "TMG" to open the timing adjustment view.
- Select either the "Draw Tool" or the "Line Tool".
- Drag the timing line to adjust.

Making Even Finer Adjustments
In the "Preferences" window under the "Editor" tab, enable "Timing Status Line".
This will display five sub-sections within each phoneme, allowing for more precise timing adjustments.
Timing adjustments at this level may have subtle or hard-to-notice effects.

Aligning Vowels to the Beginning of Notes
Select a range with the "Selection Tool", press and hold, then select "Vowel Timing Correction" from the menu that appears.
This automatically adjusts the line so that vowels are aligned with the start of each note.

Adjusting Other Parameters
Other parameters can also be easily and freely adjusted.
- Tap "VOL", "PIT", "ALP" or "HUS" to display the adjustment screen.
- Select either the "Draw Tool" or the "Line Tool".
Use the "Draw Tool" for freeform adjustments, and the "Line Tool" for linear, straight-line edits.
- Draw a line to make adjustments.
Drawn lines are displayed in orange, allowing you to distinguish between manually edited areas and the original parameter curves.

Adjustable Parameters
- VOL Volume. Measured in dB (decibels).
- PIT Pitch. Measured in Hz (hertz).
- ALP Age. Lower values result in a more childlike voice, while higher values produce a more mature tone.
- HUS Husky. Higher values make the voice sound huskier.
Duplicating Parameter Lines
To duplicate parameter lines, select a range using the "Selection Tool", then use one of the following methods:
- Duplicate only manually drawn lines Copy the selection, move the position cursor to the desired location, and paste.

- Duplicate both original and manually drawn lines Drag the selected range up or down. Manually drawn lines will overwrite the original in the corresponding areas, while the rest will retain the original parameters.

Adjusting Vibrato
You can add new vibrato and adjust its amplitude and frequency.
There are two modes: use Simplified mode for intuitive control, or Detailed mode for more precise editing.
- Tap the "VIB" to open the vibrato adjustment view.
- Select either the "Draw Tool" or the "Line Tool".
- Edit the vibrato section. By default, Simplified mode is enabled, and the following operations are available:
- Add new vibrato Draw a line to automatically create a new vibrato section.
- Adjust start/end positions Hover over the edge of a section until the cursor turns into a double arrow, then drag left or right.
- Adjust amplitude Hover over the top or bottom edge of the section until the cursor becomes a vertical arrow, then drag up or down.
- Adjust frequency Drag outward horizontally from the center of the section to adjust frequency.

About Amplitude and Frequency
- Amplitude Measured in cents, where 100 cents = one semitone up/down. Higher values result in a wider vibrato depth.
- Frequency Measured in Hz, indicating the number of cycles per second. Higher values produce faster, tighter waves.
Making More Precise Adjustments (Detailed Mode)
Tap the "Detailed" button in the upper right of the piano roll to switch modes.
The screen will split into two: the upper section "Amp." allows amplitude editing, and the lower section "Frq." allows frequency editing.
Basic operations are the same as Adjusting Other Parameters, but edits made in one section will be reflected in the other automatically.

Selecting Notes and Parameters Together
The "Bulk Selection Tool" allows you to select notes and parameters in bulk.
This enables you to perform operations such as moving, copying, and deleting in bulk.
- Select the "Bulk Selection Tool".
- Drag left and right to include notes and parameters.
