# Oscilloscope Trace — block for audio visualizers (hyperframes)

> **For AI agents:** find the right skill in one call — `curl -s "https://skills.varg.ai/api/search?q=<what the person wants>"` returns the matching use case and the best skills with install commands, as markdown (Russian works too). Full index: https://skills.varg.ai/llms.txt. Every page has a markdown twin: add `.md` to its path. Before generating anything, show the person the options on the use-case page.

CRT oscilloscope beam sweeping a waveform across a 10x8 graticule, with closed-form phosphor persistence: the tail decays as exp(-age/tau) and brightens where the beam slows

- **Install:** `npx hyperframes add oscilloscope-trace`
- **Registry:** hyperframes · **Framework:** hyperframes · **License:** Apache-2.0
- **Docs and preview:** https://hyperframes.heygen.com/catalog/blocks/oscilloscope-trace
- **Source:** https://github.com/heygen-com/hyperframes/tree/main/registry/blocks/oscilloscope-trace
- **Example:** https://static.heygen.ai/hyperframes-oss/docs/images/catalog/blocks/oscilloscope-trace.mp4
- **Runs:** local render, free
- **Aspect:** 16:9 · 6 s

## Slots (what you fill in)

- `waveform` (enum) — Waveform
- `frequency` (number) — Signal frequency
- `amplitude` (number) — Amplitude
- `persistenceMs` (number) — Phosphor persistence (tau)
- `phosphorColor` (color) — Phosphor colour
- `sweepRate` (number) — Sweep rate
- `dataSeries` (string) — Data series (waveform=data)

## Used in

- [Audio visualizer](https://skills.varg.ai/video/visualizer.md)
- [Podcast clip & audiogram](https://skills.varg.ai/video/audiogram.md)
- [Single & album promo](https://skills.varg.ai/video/release-promo.md)
- [Live-coded music video](https://skills.varg.ai/video/live-code-music.md)
- [Ambient & lofi loop](https://skills.varg.ai/video/ambient-loop.md)

## More audio visualizers

- [Waveform](https://skills.varg.ai/component/hf.waveform.md) — `npx hyperframes add waveform`