Krok Audio Lab

What is KROK? A voice morphing web app.

Record or import -> detect likely key -> apply FX (click glowing pill to configure) -> export. Everything stays in memory until refresh/leave/NEW.

Step 1) Capture / Import idle

Import audio file

Drag & drop an audio file here

Raw audio (kept until refresh / leave / NEW)

Step 2) Analyze / Configure no audio

confidence: - pitch range: -

Key (tonic)

Scale

Tuner

Smoother correction + less "grainy" artifacts.

Strength 0.75

RoboCrush

Ring-mod + bitcrush + downsample (audible).

Amount 0.60

KROKBOX

KROKKER synth voice with envelope-shaped articulation (audible).

Amount 0.75 Chorus

KROKKER

Preset voice characters with manual pitch + formant + breath customization.

Preset

Pitch shift (st) 3.5

Formant shift 1.22

Breath 0.12

Brightness 0.70

Mix 1.00

Harmony 1

Pitch-shifted layer with level control.

Harmony 2

A second layer for thicker stacks.

Environment

Realistic space simulation: early reflections + lush tail + distance cues + stereo widening. (Defaults auto-tune themselves per environment.)

Step 3) Play / Download output

Rendered preview

Download