render_spectrogram
Render a mel spectrogram to visually inspect audio for issues like hold music, beeps, or dropouts, with time axis in seconds for transcript mapping.
Instructions
Render a mel spectrogram image of a window (max 600s) for visual inspection.
Look at this to spot things metrics miss: hold music, DTMF/beep tones,
hum, dropouts, TTS glitches, where energy concentrates. Time axis is in
absolute seconds so findings map back to transcript timestamps.
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| path | Yes | ||
| channel | No | ||
| end_time | No | ||
| start_time | No |