10 Best Vocal Harmony Processors 2025 in the United States

The Boss VE-22 Vocal Effects and Looper Pedal is designed for vocalists looking to enhance their performances with harmony and effects. One of its major strengths is the ability to generate multiple harmony voices, which can be particularly beneficial for live performances. With 99 user preset slots and 50 factory presets, it offers a wide range of options for users to experiment with various sounds and effects, making it suitable for both beginners and more experienced singers. The USB-C audio interface is also a great feature for those who want to connect the device to a computer, allowing for easy recording and playback.

While the VE-22 shines in many areas, it does have a few drawbacks. The user interface, though functional, can be a bit complex for those who aren't tech-savvy, potentially requiring some time to learn how to navigate the functions effectively. Additionally, the pitch correction feature, while useful, may not be as comprehensive as some dedicated pitch correction tools, which might disappoint users looking for professional-grade pitch adjustment.

In terms of connectivity, the pedal provides a solid range of options, but it could benefit from more modern connectivity features such as Bluetooth. The compact design is a plus for portability, making it ideal for gigging musicians.

The Boss VE-500 Vocal Performer stands out as a versatile vocal harmony processor that caters to musicians and vocalists looking to enhance their performances. With 99 user presets, it offers a variety of harmony voices and modes, which makes it suitable for different styles and preferences. The inclusion of pitch correction is a significant advantage, helping users achieve a polished sound effortlessly. The 32-bit multi-effects engine adds depth to your sound, allowing for creative experimentation with vocal effects.

Connectivity options are another strong point, featuring 1/4" instrument inputs along with stereo XLR outputs, making it easy to integrate into live setups or studio environments. The ability to connect via USB is a bonus for those who want to use it with a computer.

The VE-500 does have some drawbacks. While the user interface is designed to be intuitive, beginners might still find a learning curve when navigating through its features. The compact size is convenient, but it may feel a bit cramped for those with larger feet or those who prefer more tactile control over their devices. Additionally, while the looper function is a nice inclusion, it may not be as robust as dedicated loop pedals, potentially limiting its appeal for users who heavily rely on looping.

The TC Helicon PLAY ACOUSTIC is a versatile vocal-harmony processor designed specifically for vocalists and acoustic guitar players. It integrates professional vocal effects with natural-sounding harmonies that are guided by your guitar, which is a standout feature for live performers who want seamless harmony integration.

The device includes multiple guitar FX styles borrowed from TC Electronic's popular reverb, delay, and chorus pedals, adding rich layers to your performance. Its BodyRez filtering and onboard EQ ensure your acoustic guitar sounds impeccable, while the notch filter and phase controls help prevent feedback, an essential feature for live gigs. The unit offers separate vocal and guitar outputs, or you can choose a stereo mix of both, providing flexibility depending on your setup needs.

Its compact design makes it portable and easy to fit into your gear bag, although some users might find the 3-button interface limiting in terms of control during dynamic performances. Additionally, the pitch correction feature can help keep your vocals in tune, which is great for ensuring a polished sound. The device might be slightly complex for beginners due to its extensive features and settings. With its professional-grade effects and robust build, it's particularly suited for serious musicians who perform regularly and need reliable, high-quality sound enhancement.