/
elevenlabsstreamer.js
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/
elevenlabsstreamer.js
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/*
* Copyright (c) 2023 Moddable Tech, Inc.
*
* This file is part of the Moddable SDK Runtime.
*
* The Moddable SDK Runtime is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The Moddable SDK Runtime is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with the Moddable SDK Runtime. If not, see <http://www.gnu.org/licenses/>.
*
*/
import MP3Streamer from "mp3streamer";
// https://docs.elevenlabs.io/api-reference/text-to-speech
export default class {
constructor(options) {
const {key, voice, latency, format, text, model, voice_settings, ...o} = options;
const body = ArrayBuffer.fromString(JSON.stringify({
text,
model_id: model ?? "eleven_monolingual_v1",
voice_settings: voice_settings ?? {
stability: 0,
similarity_boost: 0
}
}));
return new MP3Streamer({
...o,
http: device.network.https,
request: {
method: 'POST',
headers: new Map([
["content-type", "application/json"],
["accept", "audio/mpeg"],
["xi-api-key", key],
['content-length', body.byteLength.toString()],
]),
onWritable(count) {
this.position ??= 0;
this.write(body.slice(this.position, this.position + count))
this.position += count
},
},
port: 443,
host: "api.elevenlabs.io",
path: `/v1/text-to-speech/${voice}/stream?optimize_streaming_latency=${latency ?? 0}&output_format=${format ?? 'mp3_44100_128'}`,
})
}
}