Uploaded August 2026 | Updated September 2026, 2 weeks ago
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): polarity.me/posts/polarity-music/2026-08-01-bitwig-studio-poly-grid-bass-generator-for-random-wavetables
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💕 Support me on Patreon: bit.ly/3PgbxZz
💰 donate via Paypal: bit.ly/3cae9t8
🎧 my Music: polarity.bandcamp.com
💾 my Tools: polarity.me/posts/articles/2024-08-04-polarity-tools
💻 my Gear: kit.co/polarity/polarity-music-kit
👉 Discord: discord.gg/eWwFBww
👉 Website: polarity.me
--
🛒 Buy/Upgrade Bitwig Studio & Support me bit.ly/3yQEyDU
🛒 VST/AU Plugin Deals bit.ly/3zcvo66
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): polarity.me/posts/polarity-music/2026-08-01-bitwig-studio-poly-grid-bass-generator-for-random-wavetables
--
💕 Support me on Patreon: bit.ly/3PgbxZz
💰 donate via Paypal: bit.ly/3cae9t8
🎧 my Music: polarity.bandcamp.com
💾 my Tools: polarity.me/posts/articles/2024-08-04-polarity-tools
💻 my Gear: kit.co/polarity/polarity-music-kit
👉 Discord: discord.gg/eWwFBww
👉 Website: polarity.me
--
🛒 Buy/Upgrade Bitwig Studio & Support me bit.ly/3yQEyDU
🛒 VST/AU Plugin Deals bit.ly/3zcvo66
