I changed a phoneme while entering lyrics. After that, even when I enter additional lyrics, the phonemes remain unchanged.

Are the phonemes protected? If, in the "Note Property" window, the "PROTECT" check box at the top-right corner is selected, clear the check box.

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Shortcut keys do not work.

(1) Have you used the Cubase function for editing shortcut keys (Go to "File" menu, and then "Key Commands")? If shortcut keys are customized in Cubase, the shortcut keys in VOCALOID4 Editor might not operate correctly. (2) Are you using a virtual keyboard? The shortcut keys do not take effect with a virtual keyboard.

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The notes I entered turned red.

The notes might either be corrupted or set to not be voiced. Use the "Refresh VOCALOID Part" function to restore the notes.

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The "Apply to current part" button is disabled in "Singing Style".

Are there any red notes in the part? Use the "Refresh VOCALOID Part" function to restore or delete the notes.

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Performance is gradually slowing down.

Are VOCALOID parts being played on multiple tracks? Excess load is being placed on your computer's memory. Either freeze the "VOCALOID4 Inst", or turn off VOCALOID4 Insts on tracks that are not being used. * It can be helpful to display "VOCALOID4 Synthesis Load" while you work, to view the load placed on your computer. If the computer continues to be subject to excess load, the VOCALOID4 Inst will be automatically unmounted to maintain optimum performance.

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I created multiple parts in a single track, each with a different singer, and now some notes are not voiced.

If different singers are assigned to adjacent parts, any notes that are entered within the "Waiting Time" that is required to process voice synthesis might not be voiced. Create adjacent parts on separate tracks.

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When I play back VOCALOID parts with a different VST, the volume level is lower.

Have control parameters been assigned? In the "Edit" section of the Control Parameter area, select "DYN". If the value is set to "64", which is the default value for VOCALOID parts, change the value to "127".

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I set vibrato values by selecting the "Settings" menu and then "Singing Style". However, they are not applied to existing notes.

The vibrato values set in the "Singing Style" dialog box are applied to newly entered notes. To change vibratos on existing notes, select the "Job" menu and then use "Convert Vibrato".

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I created multiple MIDI tracks and assigned "VOCALOID4 Insts", but only one track is played. (Or, VOCALOID skips over notes on each track.)

Are outputs from multiple tracks assigned to a single VOCALOID4 Inst? The VOCALOID4 Inst cannot play multiple notes at the same time. Assign one VOCALOID4 Inst per track.

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Sounds are voiced during playback, but sample sounds are not voiced when I click the piano keyboard on the left side of the piano roll.

Is "Sample Sound Playback" turned off? Sample sounds are not played if the "Sample Sound Playback" button in the tool bar is off. Click the "Sample Sound Playback" button to turn it on.

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