Two free browser audio tools (a library of free SoundHelix example songs and a 300-preset SFX synth) and the fastest ways to get their output into your visualizer.
Before you start
Sonic Weaver ships two free audio resources: a library of free example songs from SoundHelix and a browser-based sound-effects synthesizer. Neither needs an account, and both produce files you download and keep.
The Free Assets audio library includes SoundHelix example songs, original music and loops; the sound-effects catalog is on the same page. SoundHelix songs are credited to T. Schürger. Search and preview tracks in your browser, then choose one in the editor’s Audio Library section.
Copy the credit line
SoundHelix lets you use these songs any way you like, as long as you credit SoundHelix and the artist. Each track shows its credit line (for example "SoundHelix Song 3 by T. Schürger (soundhelix.com)"); paste it into your video description. The paired engine is just a starting point; switch to any engine once you are in the editor and the audio stays loaded.
When a stock sound is close but not right, the Audio Effects Generator is a live synthesizer with 358 presets across 20 categories (Risers & Sweeps, Drops & Impacts, FX & Glitch, Cinematic Hits, UI Sounds, Kitchen & Cutlery, Film Gunfire, Breath and more). Click a preset to load it into the Sound Designer, which exposes real synthesis controls with a live waveform display: Oscillator, Envelope (ADSR), Filter, LFO, Effects and Volume. There is even an AI Generate box: type "dark ominous bass drop" and it builds parameters from your keywords, all processed locally.
The Sound Designer's Export Quality picker offers Standard (44kHz/16-bit), High Quality (48kHz/24-bit) and Studio (96kHz/24-bit), and a Loops (Extend) slider repeats the sound up to eight times. Choose High Quality (48kHz) to match video-industry standards. Two fast routes into a visualizer: Use in Editor on any library track, or Copy to Editor in the Sound Designer to load your current SFX (with your changes, loops and quality) as the editor's audio source. Beside Export WAV, Export M4A makes an AAC file (128 kbps) for apps and phones, and Send to carries the file you just exported to Mastering, Convert, a lyric video, a playlist or a music video.
Licensing
Library tracks are free SoundHelix example songs: use them any way you like, but credit SoundHelix and the artist. Sounds you build in the SFX generator are synthesized on your own device, so they are yours to use. Your export carries no watermark and costs nothing.
Keep learning
Describes Sonic Weaver v6.46, released .
Anonymous. Only this page’s address and your yes/no are recorded, and only if you allowed analytics cookies.
Follow along
Ready to try it?
Open the editor and follow along: free, no account, watermark-free exports.