LMNT

LMNT is a text-to-speech plugin. It streams speech over a WebSocket connection.

Setup

Set your LMNT API key in the worker environment. Generate a key from the LMNT site:

export LMNT_API_KEY=<key>

Import the plugin and pass it to the pipeline’s tts slot.

import { LMNTTTS } from '@zeroruntime/js-sdk/plugins';

const tts = LMNTTTS();

// Pipeline({ tts, ... })

LMNTTTS ships in the Node JS SDK only. The Python SDK does not include this plugin yet.

Constructor parameters for LMNTTTS.

Parameter	Type	Default	Description
`api_key`	`string`	`null`	LMNT API key. Falls back to the `LMNT_API_KEY` environment variable when unset.
`voice`	`string`	`"ava"`	Voice to speak with.
`model`	`string`	`"blizzard"`	LMNT model.
`language`	`string`	`"auto"`	Language code, or `"auto"` to detect it.
`format`	`string`	`"pcm_s16le"`	Audio format: `"mp3"`, `"pcm_s16le"`, `"pcm_f32le"`, `"ulaw"`, or `"webm"`.
`sample_rate`	`number`	`24000`	Output sample rate in Hz: `8000`, `16000`, or `24000`.
`seed`	`number \| null`	`null`	Seed for repeatable output.
`temperature`	`number`	`1`	Sampling temperature.
`top_p`	`number`	`0.8`	Nucleus sampling cutoff.
`ws_url`	`string`	`"wss://api.lmnt.com/v1/ai/speech/stream"`	WebSocket endpoint.

SDK	Import	Constructor
Node JS	`import { LMNTTTS } from '@zeroruntime/js-sdk/plugins'`	`LMNTTTS()`

Synthesized audio is streamed back to the caller after the LLM produces a response.