Toolbox VoxDoubler — Free Download

Updated 20 de octubre de 2026
Audio effects and utilities

Toolbox VoxDoubler by Sonnox offers two streamlined plugins for vocal doubling—Widen and Thicken—providing lifelike, real-time width and depth with intuitive humanization and tone controls.

Toolbox VoxDoubler

Purpose and Design

Toolbox VoxDoubler focuses on the two most common vocal doubling workflows, presented as two separate plugins. Widen generates two new mono voices panned left and right of the original, creating a spacious, stereo effect. Thicken produces a new stereo doubled voice that overlaps the original, adding body and density to the vocal.

Both plugins are designed for ease of use, real-time processing, and results that sound as natural as if the parts were actually multi-tracked. This approach saves time and money while maintaining creative flow, making it a practical tool for producers and engineers who want to enhance vocal performances without complex manual editing.

Key Capabilities

The plugins include a Humanize section to adjust the timing and pitch of the doubled voices relative to the original, ensuring a natural, organic feel. A Depth control pushes the new voices deeper into the mix, while a Tone control helps prevent sibilant doubles from becoming distracting or brightens those that are too muddy.

Track/Aux mode allows applying the effect in place or mixing it in parallel on an aux return for advanced control. These features are engineered to deliver believable double and triple vocal tracks, creating width, depth, or thickness as needed.

Workflow Integration

VoxDoubler is designed to fit seamlessly into a mixing workflow. In Track mode, the effect is applied directly to the vocal channel, offering quick results. In Aux mode, it can be used as a send effect, providing more flexibility for parallel processing and blending with the original signal.

The Humanize and Tone controls are straightforward, allowing for fast adjustments without interrupting creative flow. This makes it suitable for both quick fixes and more detailed sound shaping, whether enhancing a chorus or adding presence to a key lyric.

Practical Applications

While primarily engineered for vocals, VoxDoubler can also be used on instruments to add richness and interest. It is effective over an entire track or just on specific sections like a chorus to help a lyric connect with the listener, adding contrast, drama, and presence to the narrative of a song.

The plugins offer a cost-effective alternative to more complex manual doubling processes, both in terms of initial outlay and speed of use. They deliver Sonnox’s hallmark audio precision, transparency, and reliability, making them a dependable choice for producing polished vocal tracks.

Key features

  • Two plugins: Widen and Thicken for distinct doubling workflows
  • Humanize section for natural timing and pitch variation
  • Depth control to position doubled voices in the mix
  • Tone control to manage sibilance or brightness
  • Track/Aux mode for in-place or parallel processing
  • Works on vocals and instruments

Best for

Toolbox VoxDoubler is best for music producers and mixing engineers seeking quick, believable vocal doubling to add width or thickness. It excels in enhancing choruses, adding presence to lead vocals, or enriching instrumentals, with intuitive controls that maintain creative flow and deliver professional results without complex editing.

Related audio software

Download Toolbox VoxDoubler