# Get the waveform

`GET https://api.eesi.ai/v1/speech/transcriptions/{session_id}/peaks`

The recording's waveform for drawing a timeline: the loudest point in each
fiftieth of a second, scaled 0–255, base64-encoded one byte per value. Computed
from the stored audio the first time it is asked for, and kept with the
recording. Returns 409 for a recording saved without its audio.

Parameters:

- `session_id` (path, required)

Responses: 200, 404, 422.

Schemas: https://docs.eesi.ai/api-reference/public.json