Skip to main content
Audio Visualize

Audio Visualize · screenshot coming soon

​
What this node does

Audio Visualize turns an audio track into a still image. Two fast modes use FFmpeg (showwavespic, showspectrumpic); two pro modes use ComfyTV’s own higher-detail waveform and spectrogram renderers with metering overlays. It does not change the audio. It takes a COMFYTV_AUDIO snapshot (or a COMFYTV_VIDEO, whose audio track is used) and outputs a COMFYTV_IMAGE. It has a ▶ Run. A source is required. To feed native ComfyUI AUDIO in, insert a Bridge — see bridges.md.

​
When to use it

  • Generate a waveform thumbnail for a clip in a storyboard or export.
  • Inspect the spectral content of a track (find hiss, hum, or tonal balance).
  • Produce a labeled “pro” spectrogram or metered waveform for analysis.

​
Parameters

​
mode

Which render. Options: waveform (default), spectrum, waveform_pro, spectrum_pro.

​
width / height

Output image size in pixels. width 240–4096 (default 1200), height 120–2048 (default 480).

​
Waveform (fast) — split_channels

Boolean, default off. When on, draws each channel in its own lane instead of overlaid. Used by waveform mode.

​
Spectrum (fast) — color, legend

  • color — the spectrogram color map: intensity (default), channel, rainbow, moreland, nebulae, fire, fiery, fruit, cool, magma, green, viridis, plasma, cividis, terrain.
  • legend — Boolean, default on; draws frequency/time axis labels. Used by spectrum mode.

​
Pro spectrogram — pro_scale, pro_colormap, range_db, gain_db, freq_gain

  • pro_scale — frequency scale: log (default), linear, mel.
  • pro_colormap — roseus (default) or gray.
  • range_db — dynamic range shown, 20–120 dB (default 80).
  • gain_db — brightness/gain, 0–60 dB (default 20).
  • freq_gain — frequency-tilt gain, -10 to +10 dB/oct (default 0). Used by spectrum_pro mode.

​
Pro waveform — show_rms, show_clipping, db_axis

  • show_rms — Boolean, default on; overlay RMS envelope.
  • show_clipping — Boolean, default on; highlight clipped samples.
  • db_axis — Boolean, default off; label the amplitude axis in dB. Used by waveform_pro mode.

​
Outputs

​
Tips

  • Use the fast modes for quick thumbnails; the pro modes for readable, metered analysis images.
  • Only the parameter group for the selected mode applies — the rest are inert.
  • Raise gain_db on the pro spectrogram to reveal quiet detail; lower range_db to increase contrast.
  • Audio Analyze — numeric measurements instead of a picture.
  • Audio Sweep (ESS) — generate a test signal to visualize a system’s response.