This excerpt from Ableton's Learn Live series walks through Roar's Multiband mode using a sawtooth bass from Operator. Switching the routing from Single to Multiband splits the incoming signal into low, mid, and high frequency bands, each processed independently through Roar's breakout view.
The mid band gets a Bit Crusher shaper with noise modulated via Sample and Hold, adding a rhythmic, glitchy texture to the core of the bass. Crossover frequency controls let you dial in exactly which frequencies each shaper targets, so the processing stays surgical rather than smearing across the whole signal.
The high band gets Noise Injection through a Band Pass filter, with LFO1 set to an upward sawtooth shape driving the cutoff for a sweeping, rhythmic movement in the top end. The low band stays clean, letting the bottom hold the mix together while the mids and highs get mangled.
The result is a heavily shaped, animated bass that sits alongside a drum loop - a practical example of how Multiband mode turns Roar into a full sound design tool rather than just a saturation device.