Kretz Sample Drum Machine

Download Presets

Automatic Rhythm
System overload
Pattern example 1
Pattern example 2
Pattern example 3

1. Top Control Bar

• BPM: Sets the global tempo. This controls sequencer speed and syncs the delay effect.

• Swing: Adds a shuffle feel to your sequence by delaying the even-numbered 16th notes (0% = straight, 100% = hard shuffle).

• Save/Load (Disk & Folder): Exports or imports your complete session (.krsdm), including all loaded audio buffers, patterns, and effects settings.

• Render WAV: Processes your current sequence and automatically downloads it as a high-quality stereo audio file.

• Start/Stop: Controls the global playback of the step sequencer.

2. Pad Grid & Audio

• 20 Drum Pads: Click any pad to select it and preview its sound. Each pad is completely independent. Scroll to see all pads.

• Mute & Solo: Use the small M and S buttons in the top right of each pad to Mute or Solo the track.

• Volume Fader: The right edge of each pad is a mixer fader. Drag up/down to set the gain. The lime-green bar shows the current level.

• Load Audio: Click to browse and upload a .wav, .mp3, .flac, or .aiff file to the currently selected pad.

• Copy/Paste Pad: Quickly duplicate a pad's sound and effects to another slot using the COPY/PASTE buttons below the pads.

3. Waveform Editor

• Mouse Trimming: Left-click anywhere on the waveform to set the sample Start (IN) point. Right-click to set the End (OUT) point.

• Save WAV: Exports just the audio slice between the IN and OUT locators to your computer as a perfectly trimmed .wav file.

• Normalize: Click the "NORMALIZE" button to automatically scale the volume of the audio within your locators to maximum (0 dB) without distorting.

• Reverse Audio: Click the "REVERSE" button to flip the audio backwards. This only affects the audio bounded inside your current IN and OUT locators.

• Crop Sample: A red "CROP" button will appear if you have trimmed your audio. Click it to permanently delete the hidden audio outside your locators, saving memory.

• Zoom & Navigate: Use the Zoom slider (up to 200x) to edit exact zero-crossings. When zoomed in, use the horizontal scrollbar underneath to navigate the audio.

4. Signal Chain & Effects

• Pitch: Shifts the tone of the sample up or down by semitones (-24 to +12).

• Time Stretch: Alters the speed of the sample without changing its pitch using a granular engine (OLA).

• Panning: Places the pad's audio anywhere in the left/right stereo spectrum.

• Attack & Decay: Shapes the sound envelope. Attack fades it in; Decay fades it out.

• Filters: High Pass (removes low frequencies) and Low Pass (removes high frequencies) to sculpt the sample's tone.

• Delay: Adds an echoing effect that automatically synchronizes to your BPM. Toggle Ping-Pong to bounce audio left and right.

• Reverb: Washes the sound in an algorithmic hall reverberation.

5. Pattern Grid

• Step Sequencer: Left-click the numbered steps to trigger the current pad on that exact beat. The white outline shows the playhead position.

• Per-Step Pitch: Shift + Left-click and drag up/down on any step to change its individual pitch (-12 to +12 semitones).

• Alternating Steps: Right-click a step to cycle it through alternating modes.
  • 1 Dot: Plays "Every Other Time" (Even loops).
  • 2 Dots: Plays "Every 4th Time".

• Copy/Paste Sequence: Use the COPY SEQ / PASTE SEQ buttons at the top right to duplicate patterns between pads without affecting the audio sample.

• Loop Length: Change the sequence length per pad (up to 64 steps). Differing loop lengths create evolving polyrhythms!