Manual Sync

The Manual Sync tool gives you complete control over when each word highlights on screen. Use it any time the automatic sync feels off — whether that is a single word or an entire verse.

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When to use Manual Sync

• A word highlights too early or too late
• The auto-sync missed a syllable
• You added or deleted words and need to set their timing
• You want to tighten the timing on a fast or complex section

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Opening Manual Sync

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Interface overview

The Manual Sync editor has four key areas:

• Video Preview — Watch your karaoke as it will look to singers, updating in real time as you edit.
• Timeline — A horizontal view of all word blocks arranged by time. Drag and resize blocks here.
• Waveform — An audio visualization displayed beneath the timeline. Peaks represent louder sounds such as sung syllables.
• Word Blocks — Each word in your lyrics appears as a colored block whose width represents its duration.

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Selecting words

Click any word block in the timeline to select it. When a word is selected:

• It is highlighted with a distinct border.
• The word text and its exact start/end times appear in the edit panel.
• Playback previews that section of the song.

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Adjusting word timing

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Drag to move

Click and drag a word block left or right to shift when it starts and ends. Use the waveform below to align the block with the corresponding vocal peak.

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Resize duration

Drag the left edge of a block to change its start time. Drag the right edge to change its end time. This lets you extend or shorten how long a word is highlighted.

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Enter precise times

With a word selected, type exact millisecond values into the start and end time inputs in the edit panel for frame-accurate placement.

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Keyboard shortcuts

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Line operations

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Create a new line

Position the playhead or select a word, then press Enter or click New Line. Words from that point onward move to a new line below.

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Merge lines

1. Select any word in the line you want to merge.
2. Click Merge Line.

The selected line joins with the line above it, combining all its words into a single line.

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Split a line

1. Select the word where you want the split to happen.
2. Click Split Line.

All words from the selected word onward move to a new line.

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Word operations

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Add a word

1. Click the position in the timeline where the new word should appear.
2. Click Add Word.
3. Type the word text.
4. Drag the block to the correct position and resize it to match the sung duration.

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Delete a word

Select the word, then press Delete or click Delete Word in the edit panel. The word is removed and does not affect the timing of surrounding words.

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Copy and paste

1. Select a word or line.
2. Press Ctrl / Cmd + C to copy.
3. Click the target position in the timeline.
4. Press Ctrl / Cmd + V to paste.

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Using the waveform

The waveform is your best visual guide for timing:

• Peaks indicate louder sounds — typically sung syllables.
• Flat sections indicate silence or quiet passages between lines.
• Align the left edge of each word block with the peak that corresponds to that syllable.
• Play a section to verify that the highlight lands on the beat.

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Saving

Changes save automatically as you work. The save indicator in the header shows the current status:

• Saving… — Changes are being written.
• Saved — All changes are stored safely.

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Tips for better timing

• Start each word block slightly before the vocal rather than exactly on it — singers need a split second to register the highlight.
• Make adjustments in small increments and play back after each one.
• Focus on lines that feel noticeably off rather than trying to perfect every single word.
• Use the waveform as your primary visual guide, and your ears as the final check.
• Zoom into the timeline for precise adjustments on fast lyrics.