What are precision adders in Eurorack?

video upload by Noise Engineering

"A precision adder is a utility that combines pitch control voltages while keeping them perfectly in tune.

This video supports the Noise Engineering blog on the same topic here: https://noiseengineering.us/blogs/loq...

Unlike a standard CV mixer, a precision adder is designed specifically for pitch, so when you combine multiple melodic signals, your sequence stays accurate. Precision adders use extremely high-quality components in their signal path so that voltages at the inputs are reproduced with great accuracy.

In this patch, we're using Quantus Pax to combine two pitch sequences. The first sequence plays our melody, while the second acts as a transposition sequence. As the second sequence changes, the entire melody shifts up and down in pitch while staying perfectly in tune.

Precision adders aren't just limited to combining sequences…

Here, we'll patch a slow LFO into another input on Quantus Pax. With just a small amount of attenuation, the LFO creates a subtle vibrato, adding movement and expression to the voice without changing the melody itself.

Whether you're transposing melodies, combining multiple sequences, or adding expressive pitch modulation, a precision adder is a great tool whenever you’re striving for an accurate pitch.

Join us on Discord! Invite link: / discord"