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Omnivoice Text to Speech

wavespeed-ai /

OmniVoice is a massively multilingual zero-shot TTS supporting 600+ languages. Generate speech with auto voice or design custom voices using natural language descriptions. Ready-to-use REST inference API, best performance, no coldstarts, affordable pricing.

text-to-audio
Input

Siap

$0.005per run·~200 / $1

ContohLihat semua

Model Terkait

README

OmniVoice Text-to-Speech

OmniVoice Text-to-Speech converts any text into natural, expressive speech in 600+ languages. Choose from a set of voice attributes — gender, age, pitch, accent — and the model generates matching audio in seconds. No voice sample needed.

Why Choose This?

  • Attribute-driven voice design Pick from predefined voice attributes (gender, age, pitch, accent) to create your ideal voice — no audio sample required.

  • 600+ languages The broadest language coverage among zero-shot TTS models.

  • Speed control Adjust the speaking rate to match your content pacing needs.

  • Fast generation Output delivered in under 5 seconds.

Parameters

ParameterRequiredDescription
textYesThe text you want converted to speech.
voice_descriptionNoComma-separated voice attributes (see list below). If omitted, a random voice is used.
speedNoPlayback speed factor. 1.0 = normal. Range: 0.1–5.0.

Valid Voice Attributes

Combine any of these with commas (e.g. female, low pitch, british accent):

Gender: female, male

Age: child, teenager, young adult, middle-aged, elderly

Pitch: very low pitch, low pitch, moderate pitch, high pitch, very high pitch

Style: whisper

Accent: american accent, australian accent, british accent, canadian accent, chinese accent, indian accent, japanese accent, korean accent, portuguese accent, russian accent

Examples

  • female, low pitch, british accent
  • male, young adult, american accent
  • female, elderly, whisper
  • male, high pitch, indian accent

How to Use

  1. Enter your text — type or paste the content you want spoken.
  2. Choose voice attributes (optional) — combine gender, age, pitch, and accent attributes separated by commas.
  3. Set speed (optional) — adjust the speaking rate if needed.
  4. Submit — generate and download your audio in seconds.

Pricing

Text LengthCost
Under 100 chars$0.005 (flat)
100 chars$0.005
500 chars$0.025
1000 chars$0.050

Best Use Cases

  • Content creation — Generate voiceovers for videos, ads, and social media.
  • Audiobook & podcast production — Convert written content into listenable audio at scale.
  • App & product demos — Add natural speech to prototypes and presentations.
  • Accessibility — Convert text content into audio for audio-first audiences.
  • Multilingual apps — Generate speech in 600+ languages from a single model.

Pro Tips

  • Combine 2–3 attributes for best results (e.g. female, young adult, british accent).
  • Omit voice_description entirely for a random voice — useful for variety in batch generation.
  • Use whisper for ASMR-style or intimate content.
  • Adjust speed to 0.8 for calm narration or 1.3 for energetic delivery.

Related Models

Catatan:Situs web ini menggunakan model AI yang disediakan oleh pihak ketiga.

Omnivoice Text To Speech API — Quick start

Grab a WaveSpeedAI API key, then call POST https://api.wavespeed.ai/api/v3/wavespeed-ai/omnivoice/text-to-speech with your input as JSON. The endpoint returns a prediction id. Start polling the result endpoint around every 2 seconds, increase the interval for long-running tasks, and stop on any terminal status. On completed, read output values from data.outputs. Examples for Omnivoice Text To Speech below.

HTTP example
set -euo pipefail

: "${WAVESPEED_API_KEY:?Set WAVESPEED_API_KEY}"

REQUEST_BODY=$(cat <<'JSON'
{
    "text": "A clear example input",
    "speed": 1
}
JSON
)

# 1. Submit the prediction.
SUBMIT_RESPONSE=$(curl --silent --show-error --fail-with-body \
  -X POST "https://api.wavespeed.ai/api/v3/wavespeed-ai/omnivoice/text-to-speech" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $WAVESPEED_API_KEY" \
  -d "$REQUEST_BODY")

TASK=$(printf '%s' "$SUBMIT_RESPONSE" | jq 'if has("data") then .data else . end')
PREDICTION_ID=$(printf '%s' "$TASK" | jq -r '.id')
if [ -z "$PREDICTION_ID" ] || [ "$PREDICTION_ID" = "null" ]; then
  printf 'Submission response did not contain a prediction id
' >&2
  exit 1
fi
RESULT_URL=$(printf '%s' "$TASK" | jq -r '.urls.get // empty')
if [ -z "$RESULT_URL" ]; then
  RESULT_URL="https://api.wavespeed.ai/api/v3/predictions/$PREDICTION_ID/result"
fi

# 2. Poll until the prediction finishes.
while true; do
  RESPONSE=$(curl --silent --show-error --fail-with-body "$RESULT_URL" \
    -H "Authorization: Bearer $WAVESPEED_API_KEY")
  RESULT=$(printf '%s' "$RESPONSE" | jq 'if has("data") then .data else . end')
  STATUS=$(printf '%s' "$RESULT" | jq -r '.status')
  case "$STATUS" in
    completed) printf '%s\n' "$RESULT" | jq '.outputs'; break ;;
    failed|cancelled|timeout) printf '%s\n' "$RESULT" | jq . >&2; exit 1 ;;
    created|processing) sleep 2 ;;
    *) printf 'Unexpected status: %s
' "$STATUS" >&2; exit 1 ;;
  esac
done
Node.js example
const submitUrl = "https://api.wavespeed.ai/api/v3/wavespeed-ai/omnivoice/text-to-speech";
const apiKey = process.env.WAVESPEED_API_KEY;
if (!apiKey) throw new Error('Set WAVESPEED_API_KEY');

async function requestJson(url, options = {}) {
  const response = await fetch(url, options);
  if (!response.ok) throw new Error(await response.text());
  return response.json();
}

// 1. Submit the prediction.
const body = await requestJson(submitUrl, {
  method: "POST",
  headers: {
    "Authorization": `Bearer ${apiKey}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
        "text": "A clear example input",
        "speed": 1
}),
});
const task = body.data ?? body;
if (!task.id) throw new Error("Submission response did not contain a prediction id");
const resultUrl = task.urls?.get ||
  `https://api.wavespeed.ai/api/v3/predictions/${task.id}/result`;

// 2. Poll until the prediction finishes.
while (true) {
  const resultBody = await requestJson(resultUrl, {
    headers: { "Authorization": `Bearer ${apiKey}` },
  });
  const result = resultBody.data ?? resultBody;
  if (result.status === "completed") {
    console.log(result.outputs);
    break;
  }
  if (["failed", "cancelled", "timeout"].includes(result.status)) throw new Error(JSON.stringify(result));
  if (!["created", "processing"].includes(result.status)) throw new Error("Unexpected status: " + result.status);
  await new Promise(resolve => setTimeout(resolve, 2000));
}
Python example
import json
import os
import time
from urllib.request import Request, urlopen

api_key = os.environ["WAVESPEED_API_KEY"]
headers = {"Authorization": f"Bearer {api_key}", "Content-Type": "application/json"}
payload = {
    "text": "A clear example input",
    "speed": 1
}

def request_json(url, data=None):
    request = Request(url, data=data, headers=headers, method="POST" if data else "GET")
    with urlopen(request) as response:
        return json.load(response)

# 1. Submit the prediction.
body = request_json("https://api.wavespeed.ai/api/v3/wavespeed-ai/omnivoice/text-to-speech", json.dumps(payload).encode())
task = body.get("data", body)
if not task.get("id"):
    raise RuntimeError("Submission response did not contain a prediction id")
result_url = task.get("urls", {}).get("get") or f"https://api.wavespeed.ai/api/v3/predictions/{task['id']}/result"

# 2. Poll until the prediction finishes.
while True:
    result_body = request_json(result_url)
    result = result_body.get("data", result_body)
    status = result.get("status")
    if status == "completed":
        print(result.get("outputs", []))
        break
    if status in {"failed", "cancelled", "timeout"}:
        raise RuntimeError(result)
    if status not in {"created", "processing"}:
        raise RuntimeError(f"Unexpected status: {status}")
    time.sleep(2)

Omnivoice Text To Speech API — Frequently asked questions

What is the Omnivoice Text To Speech API?

Omnivoice Text To Speech is a WaveSpeedAI model for audio generation, exposed as a REST API on WaveSpeedAI. OmniVoice is a massively multilingual zero-shot TTS supporting 600+ languages. Generate speech with auto voice or design custom voices using natural language descriptions. Ready-to-use REST inference API, best performance, no coldstarts, affordable pricing. You can call it programmatically or try it from the playground above.

How do I call the Omnivoice Text To Speech API?

POST your input parameters to the model's REST endpoint (shown in the API tab of this playground) with your WaveSpeedAI API key in the Authorization header. Submission returns a prediction ID. Poll the result endpoint starting around every 2 seconds, increase the interval for long-running tasks, and stop on any terminal status. The playground generates production-oriented Python, JavaScript, and cURL examples with timeouts, transient-error handling, and safe GET retries. Full request/response shape is documented at https://wavespeed.ai/docs/docs-api/wavespeed-ai/omnivoice-text-to-speech.

How much does Omnivoice Text To Speech cost per run?

Omnivoice Text To Speech starts at $0.005 per run. That figure is the base price — the final charge scales with the parameters you set in the form (output size, length, count, references, or whatever knobs this model exposes), so a higher-quality or larger output costs more than a minimal one. The exact cost for your current input is shown live next to the Generate button before you submit, and the actual per-call charge is recorded on the prediction afterwards.

What inputs does Omnivoice Text To Speech accept?

Key inputs: `speed`, `text`, `voice_description`. The full JSON schema (types, defaults, allowed values) is rendered above the Generate button and mirrored in the API reference at https://wavespeed.ai/docs/docs-api/wavespeed-ai/omnivoice-text-to-speech.

How long does Omnivoice Text To Speech take to generate?

Median end-to-end generation time on WaveSpeedAI is around 11 seconds per request, based on recent successful runs. Queue time varies with global demand; live status is visible in the prediction record.

Can I use Omnivoice Text To Speech outputs commercially?

Commercial usage rights depend on the model's license, set by its provider (WaveSpeedAI). The license summary appears on the model card above; see WaveSpeedAI's Terms of Service for platform-level conditions.

Omnivoice Text to Speech | Realistic Voice & TTS API | WaveSpeedAI