Ircam | Trax

IRCAM Trax is a powerful suite of three audio processors—, Cross Synthesis , and Source Filter —designed to manipulate the core properties of sound, particularly the human voice. Unlike standard pitch-shifters, it uses advanced phase vocoder technology to separate a sound's "source" (its pitch and breath) from its "filter" (its timbral character), allowing you to change a voice's age, gender, or even species without losing natural quality. Phase 1: Sound Design & Character Development

: Use the Source Filter to continuously blend the loudness contour of one sound with the "spectral color" (timbre) of another, creating transitions that sound organic yet impossible in the real world. IRCAM Trax Vocal Transformer Ircam trax

: Use the Transformer module to shift the "Formant" and "Pitch" independently. To turn a male voice into a child's, raise both the pitch and the formant frequency. IRCAM Trax is a powerful suite of three

: Route a vocal track into the "Filter" input and a rhythmic synth or guitar into the "Source." This imposes the vowel characteristics of the voice onto the instrument’s timbre. IRCAM Trax Vocal Transformer : Use the Transformer

: Dramatically lower the formant while keeping the pitch stable to create a "giant" or "monster" effect.

Use the and Source Filter tools to blend two different sounds into a single hybrid instrument.