How to make harsh noise online in 3 steps
- 01
Load a sound
Click Open file or drag audio into the drop zone, record from your microphone, or press Try a demo. Start with your device volume low before you play anything back.
- 02
Dial in the noise
Add distortion drive, set the bitcrusher's bit depth and sample-rate reduction, bring in ring modulator frequency, and add delay or tremolo. Live preview lets you hear every change immediately.
- 03
Tame it and export
Watch the output ceiling limiter keep peaks in check, use Panic stop (Esc) any time it gets too loud or too chaotic, then click Render preview and Download audio once you have a result worth keeping.
What you can do in the noise laboratory
- Distortion drive for anything from mild grit to a fully clipped, saturated wall of sound.
- A bitcrusher with adjustable bit depth (1–16 bit) and sample-rate reduction, for a crushed, lo-fi, digital-decay character.
- A ring modulator with adjustable frequency that multiplies the signal against itself for metallic, bell-like, or robotic tones.
- Delay with time and feedback controls, capped for safety so feedback cannot run away into an uncontrolled buildup.
- Tremolo for rhythmic amplitude pulsing, layered on top of any of the other effects at the same time.
- An output ceiling limiter that keeps peaks from clipping even when every effect is pushed toward its extreme.
- Panic stop, mapped to Esc, that instantly silences everything the moment it becomes too much to handle.
- Four presets — Harsh wall, Bitcrushed, Metal feedback, Broken radio — as starting points for common noise textures.
- Live preview of every effect while audio plays, so you hear each change the instant you make it.
What is this noise music generator?
This noise music generator is an experimental effects playground built for pushing a sound past where a normal effect would stop — distortion, a bitcrusher, a ring modulator, delay, and tremolo, all stacked together and capable of extreme settings on purpose. It runs entirely in your browser: load or record a sound, push the controls, and hear the result change live as you turn each knob.
It lives in the Lab because it is not built for subtle processing. Where the equalizer or reverb tools aim for a clean, musical result, this tool is meant to be pushed toward harshness, breakup, and noise on purpose, as a sound-design and noise-music tool rather than a mixing effect for a finished, radio-ready track you plan to release as-is.
The effects explained: drive, bitcrusher, ring mod, delay, tremolo
Drive adds distortion by pushing the signal into clipping, from a light edge at low settings to a fully saturated, buzzing wall at the extreme end. The bitcrusher works differently: it reduces bit depth, from 16 bits down to as low as 1, and reduces the effective sample rate, which introduces the stepped, aliased, digital-decay sound associated with crushed, lo-fi audio rather than analog-style saturation.
The ring modulator multiplies your signal by another frequency you set, which produces inharmonic, metallic, or bell-like tones rather than simple distortion — small changes to its frequency can shift the result from a subtle wobble to a completely different, robotic timbre. Delay adds repeats with adjustable time and feedback, capped so the feedback cannot spiral into an uncontrolled, ever-louder buildup, and tremolo pulses the volume rhythmically on top of whatever else is happening.
Presets and building your own harsh noise
Harsh wall leans on heavy drive and a fast-feedback delay for a dense, saturated block of noise. Bitcrushed favors a low bit depth and reduced sample rate for a crunchy, digital, broken character. Metal feedback combines ring modulation with delay feedback for a clanging, resonant, semi-tonal texture, and Broken radio layers distortion with a narrower tonal character and tremolo for an unstable, signal-cutting-out feel.
Every preset is a starting point rather than a fixed destination — load one, then push a single control further, bring in a different effect on top, or back off whichever parameter feels most extreme. Because everything previews live, you can hear exactly how far a change pushes the sound before committing to a render you actually want to keep and download.
Hearing safety and noise music as a form
Start quiet. Distortion, a bitcrusher, ring modulation, and feedback delay can all produce sudden, harsh, and much louder-feeling peaks than a clean signal at the same meter level, and it is easy to push several effects together into something uncomfortably loud without meaning to. Keep your device volume low when you begin, add effects one at a time, and use Panic stop, mapped to Esc, the moment anything feels too loud or too chaotic — it silences everything immediately.
Deliberately harsh, distorted, and noise-based sound has a long history as its own art form, built around texture, volume, and extremity rather than melody or harmony in the conventional sense. This noise music generator is built for that kind of exploration — treating distortion, aliasing, and feedback as raw material rather than problems to fix — and the output ceiling limiter exists specifically so you can push those extremes without your output ever clipping above 0 dBFS.
Tips for better results
- Start every session at a low device volume, and raise it gradually once you know roughly how loud a setting will get.
- Add one effect at a time rather than maxing out drive, bitcrusher, ring mod, delay, and tremolo all at once.
- Keep Panic stop (Esc) in mind at all times — it is there specifically so you can stop instantly if something gets too intense.
- Try a preset first, then change a single parameter, so you can hear exactly what each control adds to the texture.
- Use the ring modulator at a low frequency for a subtle wobble, and higher frequencies for a fully inharmonic, metallic tone.
- Render short clips while you are experimenting; save a longer render for a setting you already know you want to keep.
Frequently asked questions
Is this noise generator free?
Yes. Every effect, all four presets, and audio export are free, with no sign-up and no watermark on the result. It runs entirely in your browser using your own device to process everything, with nothing to install first.
Is this safe to listen to?
It can get loud and harsh quickly if you push several effects at once, so start at a low device volume and raise it gradually. Use Panic stop (Esc) any time a sound feels too intense, and the output ceiling limiter keeps peaks from clipping above 0 dBFS.
What does the panic stop do?
Pressing Esc silences everything instantly, no matter which effects are active or how loud the sound has become. It exists specifically so extreme, unpredictable settings never leave you stuck listening to something uncomfortable for even a moment.
What is a bitcrusher, in simple terms?
It reduces bit depth, down to as low as 1 bit, and effective sample rate, which introduces a stepped, aliased, digital-decay character rather than smooth analog-style distortion. Lower settings sound crunchier and more broken than a normal distortion effect alone.
Why is the delay feedback capped?
Delay feedback can build on itself and get louder with every repeat if left uncontrolled, which is dangerous at high volumes. The feedback amount is capped so repeats always settle rather than escalating indefinitely, even at extreme settings.
Does this upload my audio anywhere?
No. Everything, including live preview and rendering, runs on your own device. Nothing you load, record, or process is sent to a server, and no account is required to use any part of the tool.
What are the four presets?
Harsh wall, Bitcrushed, Metal feedback, and Broken radio. Each combines the effects differently as a starting point — load one, then adjust individual controls to push it further or pull it back toward something calmer.
Can I use my own recordings, or only uploaded files?
Both. Click Open file to upload audio, drag a file into the drop zone, or record directly from your microphone. Try a demo also works if you want to test the effects without loading your own material first.
Is this a medical or hearing test tool?
No. This is a sound-effects and noise-music tool, not a hearing test. For an informal frequency and range check, use the tone generator instead, and see an audiologist for anything related to your actual hearing health.
What is noise music?
It is a genre and art form built around harsh, distorted, and texturally extreme sound — treating distortion, feedback, and noise as raw material rather than something to avoid, and valuing texture, volume, and intensity over conventional melody or harmony.
Does this work on mobile phones?
Yes, the effects and live preview work in a mobile browser, though small phone speakers reproduce harsh, extreme sounds differently than headphones or external speakers, so results can feel or sound different than you expect.
How is this different from the voice changer?
The voice changer is built around musical and character presets that keep a voice mostly intelligible. This noise laboratory is built for pushing distortion, bitcrushing, ring modulation, and feedback toward deliberately extreme, often unrecognizable results.