polarity_music

I'm Back! (Patreon)

Published:

2026-08-01 15:47:26

Imported:

2026-08

Tags:

presets tutorial

Content

After 2 weeks something new! I needed a bit of downtime, sorry! :D Anyway, tried to make a beat lately and but got lost in the grid, as you do.

But I needed a bass sound for a drum loop (thx L0G1N), so instead of browsing through presets or searching for the right wavetable, I built a random bass generator inside Bitwig Studio’s Poly Grid.

The patch creates new single-cycle waveforms from random Dice values, scans them at the correct note frequency, and uses them to phase-modulate a sine oscillator. I then expand the idea into a small wavetable with multiple random frames, randomized movement, PM depth modulation, and post-FX. The result is a machine that can generate a ridiculous number of different bass sounds.

There is only one small problem: Bitwig forgets the random values when the project is reloaded. So when the machine creates something good, I record it immediately and continue working with the audio.

Download: https://polarity.productions/dispenser/ or on my Github.

More videos and the Recorder Plugin coming soon!

Files

I Made Bitwig Invent Its Own Wavetables

I needed a bass sound for a drum loop, so instead of browsing through presets or searching for the right wavetable, I built a random bass generator inside Bitwig Studio’s Poly Grid. The patch creates new single-cycle waveforms from random Dice values, scans them at the correct note frequency, and uses them to phase-modulate a sine oscillator. I then expand the idea into a small wavetable with multiple random frames, randomized movement, PM depth modulation, and post-FX. The result is a machine that can generate a ridiculous number of different bass sounds. There is only one small problem: Bitwig forgets the random values when the project is reloaded. So when the machine creates something good, I record it immediately and continue working with the audio. Download my presets, tools and projects: https://polarity.productions/dispenser/ 0:00 Why I’m building a bass generator 0:36 Setting up the basic monophonic bass 2:38 Generating random wavetables on the fly 4:02 Scanning random values with a Phasor 5:34 Phase modulation and bass overtones 6:17 Smoothing the generated waveform 7:05 Building a wavetable with multiple frames 8:15 Randomizing waveform ratios 10:21 Creating the wavetable-position control 11:15 Randomizing the wavetable movement 14:16 Random modulation and PM depth 17:50 Adding post-FX and splitting the low end 21:55 Why Bitwig forgets the generated sounds 22:15 Recording and resampling the results 24:47 Combining generated bass sounds 25:20 Final workflow and thoughts Video transcribed, summarized and Q&A on my Blog (no ads): https://polarity.me/posts/polarity-music/2026-08-01-bitwig-studio-poly-grid-bass-generator-for-random-wavetables/ -- 💕 Support me on Patreon: https://bit.ly/3PgbxZz 💰 donate via Paypal: https://bit.ly/3cae9t8 🎧 my Music: https://polarity.bandcamp.com/ 💾 my Tools: https://polarity.me/posts/articles/2024-08-04-polarity-tools/ 💻 my Gear: https://kit.co/polarity/polarity-music-kit 👉 Discord: https://discord.gg/eWwFBww 👉 Website: https://polarity.me -- 🛒 Buy/Upgrade Bitwig Studio & Support me https://bit.ly/3yQEyDU 🛒 VST/AU Plugin Deals https://bit.ly/3zcvo66